/mandos/release : contents of plugin-runner.c at revision 237.2.71

: (revision 237.2.71)

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21 by Teddy Hogeborn * Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and	1	/* -- coding: utf-8 -- */
	2	/*
	3	* Mandos plugin runner - Run Mandos plugins
	4	*
237.2.9 by Teddy Hogeborn * README: Update copyright year; add "2009".	5	* Copyright © 2008,2009 Teddy Hogeborn
	6	* Copyright © 2008,2009 Björn Påhlsson
21 by Teddy Hogeborn * Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and	7	*
	8	* This program is free software: you can redistribute it and/or
	9	* modify it under the terms of the GNU General Public License as
	10	* published by the Free Software Foundation, either version 3 of the
	11	* License, or (at your option) any later version.
	12	*
	13	* This program is distributed in the hope that it will be useful, but
	14	* WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	16	* General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License
	19	* along with this program. If not, see
	20	* <http://www.gnu.org/licenses/>.
	21	*
28 by Teddy Hogeborn * server.conf: New file.	22	* Contact the authors at <mandos@fukt.bsnet.se>.
21 by Teddy Hogeborn * Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and	23	*/
	24
78 by Teddy Hogeborn Add feature to specify custom environment variables for plugins.	25	#define _GNU_SOURCE /* TEMP_FAILURE_RETRY(), getline(),
	26	asprintf() */
24.1.26 by Björn Påhlsson tally count of used symbols	27	#include <stddef.h> /* size_t, NULL */
	28	#include <stdlib.h> /* malloc(), exit(), EXIT_FAILURE,
	29	EXIT_SUCCESS, realloc() */
	30	#include <stdbool.h> /* bool, true, false */
205 by Teddy Hogeborn * Makefile (PLUGINS, uninstall-client,	31	#include <stdio.h> /* perror, fileno(), fprintf(),
	32	stderr, STDOUT_FILENO */
24.1.26 by Björn Påhlsson tally count of used symbols	33	#include <sys/types.h> /* DIR, opendir(), stat(), struct
	34	stat, waitpid(), WIFEXITED(),
	35	WEXITSTATUS(), wait(), pid_t,
	36	uid_t, gid_t, getuid(), getgid(),
	37	dirfd() */
	38	#include <sys/select.h> /* fd_set, select(), FD_ZERO(),
	39	FD_SET(), FD_ISSET(), FD_CLR */
	40	#include <sys/wait.h> /* wait(), waitpid(), WIFEXITED(),
	41	WEXITSTATUS() */
	42	#include <sys/stat.h> /* struct stat, stat(), S_ISREG() */
31 by Teddy Hogeborn * plugins.d/plugbasedclient.c: Update include file comments.	43	#include <iso646.h> /* and, or, not */
	44	#include <dirent.h> /* DIR, struct dirent, opendir(),
24.1.26 by Björn Påhlsson tally count of used symbols	45	readdir(), closedir(), dirfd() */
31 by Teddy Hogeborn * plugins.d/plugbasedclient.c: Update include file comments.	46	#include <unistd.h> /* struct stat, stat(), S_ISREG(),
24.1.26 by Björn Påhlsson tally count of used symbols	47	fcntl(), setuid(), setgid(),
	48	F_GETFD, F_SETFD, FD_CLOEXEC,
	49	access(), pipe(), fork(), close()
205 by Teddy Hogeborn * Makefile (PLUGINS, uninstall-client,	50	dup2(), STDOUT_FILENO, _exit(),
24.1.26 by Björn Påhlsson tally count of used symbols	51	execv(), write(), read(),
	52	close() */
	53	#include <fcntl.h> /* fcntl(), F_GETFD, F_SETFD,
	54	FD_CLOEXEC */
78 by Teddy Hogeborn Add feature to specify custom environment variables for plugins.	55	#include <string.h> /* strsep, strlen(), asprintf() */
31 by Teddy Hogeborn * plugins.d/plugbasedclient.c: Update include file comments.	56	#include <errno.h> /* errno */
24.1.26 by Björn Påhlsson tally count of used symbols	57	#include <argp.h> /* struct argp_option, struct
	58	argp_state, struct argp,
	59	argp_parse(), ARGP_ERR_UNKNOWN,
102 by Teddy Hogeborn * plugin-runner.c (process): Set "completed" and "status" as volatile.	60	ARGP_KEY_END, ARGP_KEY_ARG,
	61	error_t */
24.1.26 by Björn Påhlsson tally count of used symbols	62	#include <signal.h> /* struct sigaction, sigemptyset(),
	63	sigaddset(), sigaction(),
	64	sigprocmask(), SIG_BLOCK, SIGCHLD,
237.2.71 by Teddy Hogeborn * plugin-runner.c: Comment change.	65	SIG_UNBLOCK, kill(), sig_atomic_t
	66	*/
24.1.26 by Björn Påhlsson tally count of used symbols	67	#include <errno.h> /* errno, EBADF */
237.2.31 by Teddy Hogeborn Fixes for sscanf usage:	68	#include <inttypes.h> /* intmax_t, SCNdMAX, PRIdMAX, */
13 by Björn Påhlsson Added following support:	69
37 by Teddy Hogeborn Non-tested commit for merge purposes.	70	#define BUFFER_SIZE 256
24.1.69 by Björn Påhlsson added configfile as a optional argument to plugin-runner	71
	72	#define PDIR "/lib/mandos/plugins.d"
	73	#define AFILE "/conf/conf.d/mandos/plugin-runner.conf"
37 by Teddy Hogeborn Non-tested commit for merge purposes.	74
217 by Teddy Hogeborn * .bzrignore: Added "man" directory (created by "make install-html").	75	const char *argp_program_version = "plugin-runner " VERSION;
24.1.35 by Björn Påhlsson version 1.0	76	const char *argp_program_bug_address = "<mandos@fukt.bsnet.se>";
24.1.35 by Björn Påhlsson version 1.0	77
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	78	typedef struct plugin{
	79	char name; / can be NULL or any plugin name */
	80	char **argv;
	81	int argc;
	82	char **environ;
	83	int envc;
	84	bool disabled;
	85
	86	/* Variables used for running processes*/
13 by Björn Påhlsson Added following support:	87	pid_t pid;
	88	int fd;
	89	char *buffer;
21 by Teddy Hogeborn * Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and	90	size_t buffer_size;
	91	size_t buffer_length;
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	92	bool eof;
237.2.59 by Teddy Hogeborn * plugin-runner.c (struct plugin.completed): Changed type to "volatile	93	volatile sig_atomic_t completed;
237.2.60 by Teddy Hogeborn * plugin-runner.c (struct plugin.status): Changed type to "int".	94	int status;
24.1.1 by Björn Påhlsson Added syntax and support for plugbasedclient arguments and how they	95	struct plugin *next;
	96	} plugin;
	97
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	98	static plugin *plugin_list = NULL;
	99
24.1.90 by Björn Påhlsson fixed two bugs:	100	/* Gets an existing plugin based on name,
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	101	or if none is found, creates a new one */
	102	static plugin getplugin(char name){
	103	/* Check for exiting plugin with that name */
237.2.29 by Teddy Hogeborn * plugin-runner.c: Only space changes.	104	for(plugin *p = plugin_list; p != NULL; p = p->next){
	105	if((p->name == name)
	106	or (p->name and name and (strcmp(p->name, name) == 0))){
24.1.1 by Björn Påhlsson Added syntax and support for plugbasedclient arguments and how they	107	return p;
	108	}
	109	}
	110	/* Create a new plugin */
	111	plugin *new_plugin = malloc(sizeof(plugin));
237.2.29 by Teddy Hogeborn * plugin-runner.c: Only space changes.	112	if(new_plugin == NULL){
78 by Teddy Hogeborn Add feature to specify custom environment variables for plugins.	113	return NULL;
24.1.1 by Björn Påhlsson Added syntax and support for plugbasedclient arguments and how they	114	}
24.1.62 by Björn Påhlsson merge + small bugfix	115	char *copy_name = NULL;
	116	if(name != NULL){
	117	copy_name = strdup(name);
98 by Teddy Hogeborn * plugin-runner.c (getplugin): Only copy "name" if not NULL. Free	118	if(copy_name == NULL){
237.2.35 by Teddy Hogeborn Fix problem found using cppcheck, thanks to George Danchev	119	free(new_plugin);
98 by Teddy Hogeborn * plugin-runner.c (getplugin): Only copy "name" if not NULL. Free	120	return NULL;
	121	}
24.1.54 by Björn Påhlsson plugin-runner	122	}
24.1.90 by Björn Påhlsson fixed two bugs:	123
237.2.56 by Teddy Hogeborn * plugin-runner.c: Whitespace changes only.	124	*new_plugin = (plugin){ .name = copy_name,
	125	.argc = 1,
	126	.disabled = false,
	127	.next = plugin_list };
78 by Teddy Hogeborn Add feature to specify custom environment variables for plugins.	128
24.1.1 by Björn Påhlsson Added syntax and support for plugbasedclient arguments and how they	129	new_plugin->argv = malloc(sizeof(char ) 2);
237.2.29 by Teddy Hogeborn * plugin-runner.c: Only space changes.	130	if(new_plugin->argv == NULL){
24.1.62 by Björn Påhlsson merge + small bugfix	131	free(copy_name);
78 by Teddy Hogeborn Add feature to specify custom environment variables for plugins.	132	free(new_plugin);
	133	return NULL;
24.1.1 by Björn Påhlsson Added syntax and support for plugbasedclient arguments and how they	134	}
24.1.54 by Björn Påhlsson plugin-runner	135	new_plugin->argv[0] = copy_name;
24.1.1 by Björn Påhlsson Added syntax and support for plugbasedclient arguments and how they	136	new_plugin->argv[1] = NULL;
135 by Teddy Hogeborn * plugin-runner.c (add_environment): Never insert existing environment	137
78 by Teddy Hogeborn Add feature to specify custom environment variables for plugins.	138	new_plugin->environ = malloc(sizeof(char *));
	139	if(new_plugin->environ == NULL){
24.1.62 by Björn Påhlsson merge + small bugfix	140	free(copy_name);
78 by Teddy Hogeborn Add feature to specify custom environment variables for plugins.	141	free(new_plugin->argv);
	142	free(new_plugin);
	143	return NULL;
	144	}
	145	new_plugin->environ[0] = NULL;
135 by Teddy Hogeborn * plugin-runner.c (add_environment): Never insert existing environment	146
24.1.1 by Björn Påhlsson Added syntax and support for plugbasedclient arguments and how they	147	/* Append the new plugin to the list */
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	148	plugin_list = new_plugin;
24.1.1 by Björn Påhlsson Added syntax and support for plugbasedclient arguments and how they	149	return new_plugin;
	150	}
	151
78 by Teddy Hogeborn Add feature to specify custom environment variables for plugins.	152	/* Helper function for add_argument and add_environment */
	153	static bool add_to_char_array(const char new, char **array,
	154	int *len){
	155	/* Resize the pointed-to array to hold one more pointer */
	156	array = realloc(array, sizeof(char *)
	157	* (size_t) ((*len) + 2));
	158	/* Malloc check */
	159	if(*array == NULL){
	160	return false;
	161	}
	162	/* Make a copy of the new string */
	163	char *copy = strdup(new);
	164	if(copy == NULL){
	165	return false;
	166	}
	167	/* Insert the copy */
	168	(array)[len] = copy;
	169	(*len)++;
	170	/* Add a new terminating NULL pointer to the last element */
	171	(array)[len] = NULL;
	172	return true;
	173	}
	174
	175	/* Add to a plugin's argument vector */
	176	static bool add_argument(plugin p, const char arg){
	177	if(p == NULL){
	178	return false;
	179	}
	180	return add_to_char_array(arg, &(p->argv), &(p->argc));
	181	}
	182
	183	/* Add to a plugin's environment */
136 by Teddy Hogeborn * plugin-runner.c (add_environment): Override existing environment	184	static bool add_environment(plugin p, const char def, bool replace){
78 by Teddy Hogeborn Add feature to specify custom environment variables for plugins.	185	if(p == NULL){
	186	return false;
	187	}
135 by Teddy Hogeborn * plugin-runner.c (add_environment): Never insert existing environment	188	/* namelen = length of name of environment variable */
	189	size_t namelen = (size_t)(strchrnul(def, '=') - def);
	190	/* Search for this environment variable */
	191	for(char *e = p->environ; e != NULL; e++){
24.1.90 by Björn Påhlsson fixed two bugs:	192	if(strncmp(*e, def, namelen + 1) == 0){
136 by Teddy Hogeborn * plugin-runner.c (add_environment): Override existing environment	193	/* It already exists */
	194	if(replace){
24.1.90 by Björn Påhlsson fixed two bugs:	195	char new = realloc(e, strlen(def) + 1);
136 by Teddy Hogeborn * plugin-runner.c (add_environment): Override existing environment	196	if(new == NULL){
	197	return false;
	198	}
	199	*e = new;
	200	strcpy(*e, def);
	201	}
135 by Teddy Hogeborn * plugin-runner.c (add_environment): Never insert existing environment	202	return true;
	203	}
	204	}
78 by Teddy Hogeborn Add feature to specify custom environment variables for plugins.	205	return add_to_char_array(def, &(p->environ), &(p->envc));
	206	}
	207
32 by Teddy Hogeborn * plugins.d/plugbasedclient.c (set_cloexec_flag): New function.	208	/*
	209	* Based on the example in the GNU LibC manual chapter 13.13 "File
	210	* Descriptor Flags".
	211	* *Note File Descriptor Flags:(libc)Descriptor Flags.
	212	*/
187 by Teddy Hogeborn * debian/mandos-client.README.Debian: Document "eth0" default and how	213	static int set_cloexec_flag(int fd){
32 by Teddy Hogeborn * plugins.d/plugbasedclient.c (set_cloexec_flag): New function.	214	int ret = fcntl(fd, F_GETFD, 0);
	215	/* If reading the flags failed, return error indication now. */
	216	if(ret < 0){
	217	return ret;
	218	}
	219	/* Store modified flag word in the descriptor. */
	220	return fcntl(fd, F_SETFD, ret \| FD_CLOEXEC);
	221	}
	222
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	223
102 by Teddy Hogeborn * plugin-runner.c (process): Set "completed" and "status" as volatile.	224	/* Mark processes as completed when they exit, and save their exit
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	225	status. */
187 by Teddy Hogeborn * debian/mandos-client.README.Debian: Document "eth0" default and how	226	static void handle_sigchld(__attribute__((unused)) int sig){
237.2.61 by Teddy Hogeborn * plugin-runner.c (handle_sigchld): Bug fix: Save and restore "errno".	227	int old_errno = errno;
24.1.65 by Björn Påhlsson * plugin-runner.c (handle_sigchld): Loop until all exited children	228	while(true){
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	229	plugin *proc = plugin_list;
24.1.65 by Björn Påhlsson * plugin-runner.c (handle_sigchld): Loop until all exited children	230	int status;
	231	pid_t pid = waitpid(-1, &status, WNOHANG);
	232	if(pid == 0){
102 by Teddy Hogeborn * plugin-runner.c (process): Set "completed" and "status" as volatile.	233	/* Only still running child processes */
24.1.65 by Björn Påhlsson * plugin-runner.c (handle_sigchld): Loop until all exited children	234	break;
	235	}
	236	if(pid == -1){
237.2.58 by Teddy Hogeborn * plugin-runner.c (handle_sigchld): Clarify logic.	237	if(errno == ECHILD){
	238	/* No child processes */
	239	break;
24.1.65 by Björn Påhlsson * plugin-runner.c (handle_sigchld): Loop until all exited children	240	}
237.2.58 by Teddy Hogeborn * plugin-runner.c (handle_sigchld): Clarify logic.	241	perror("waitpid");
24.1.65 by Björn Påhlsson * plugin-runner.c (handle_sigchld): Loop until all exited children	242	}
24.1.90 by Björn Påhlsson fixed two bugs:	243
102 by Teddy Hogeborn * plugin-runner.c (process): Set "completed" and "status" as volatile.	244	/* A child exited, find it in process_list */
24.1.65 by Björn Påhlsson * plugin-runner.c (handle_sigchld): Loop until all exited children	245	while(proc != NULL and proc->pid != pid){
	246	proc = proc->next;
	247	}
	248	if(proc == NULL){
	249	/* Process not found in process list */
	250	continue;
	251	}
	252	proc->status = status;
237.2.59 by Teddy Hogeborn * plugin-runner.c (struct plugin.completed): Changed type to "volatile	253	proc->completed = 1;
24.1.65 by Björn Påhlsson * plugin-runner.c (handle_sigchld): Loop until all exited children	254	}
237.2.61 by Teddy Hogeborn * plugin-runner.c (handle_sigchld): Bug fix: Save and restore "errno".	255	errno = old_errno;
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	256	}
24.1.1 by Björn Påhlsson Added syntax and support for plugbasedclient arguments and how they	257
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	258	/* Prints out a password to stdout */
187 by Teddy Hogeborn * debian/mandos-client.README.Debian: Document "eth0" default and how	259	static bool print_out_password(const char *buffer, size_t length){
64 by Teddy Hogeborn * mandos-client.c (print_out_password): Strip trailing '\n'.	260	ssize_t ret;
	261	for(size_t written = 0; written < length; written += (size_t)ret){
24.1.42 by Björn Påhlsson Added fallback to mandos-client	262	ret = TEMP_FAILURE_RETRY(write(STDOUT_FILENO, buffer + written,
	263	length - written));
	264	if(ret < 0){
	265	return false;
	266	}
	267	}
	268	return true;
	269	}
	270
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	271	/* Removes and free a plugin from the plugin list */
	272	static void free_plugin(plugin *plugin_node){
	273
	274	for(char *arg = plugin_node->argv; arg != NULL; arg++){
	275	free(*arg);
	276	}
	277	free(plugin_node->argv);
	278	for(char *env = plugin_node->environ; env != NULL; env++){
	279	free(*env);
	280	}
	281	free(plugin_node->environ);
	282	free(plugin_node->buffer);
	283
	284	/* Removes the plugin from the singly-linked list */
	285	if(plugin_node == plugin_list){
	286	/* First one - simple */
	287	plugin_list = plugin_list->next;
	288	} else {
	289	/* Second one or later */
	290	for(plugin *p = plugin_list; p != NULL; p = p->next){
	291	if(p->next == plugin_node){
	292	p->next = plugin_node->next;
	293	break;
	294	}
	295	}
	296	}
	297
	298	free(plugin_node);
	299	}
	300
	301	static void free_plugin_list(void){
	302	while(plugin_list != NULL){
	303	free_plugin(plugin_list);
98 by Teddy Hogeborn * plugin-runner.c (getplugin): Only copy "name" if not NULL. Free	304	}
24.1.54 by Björn Påhlsson plugin-runner	305	}
24.1.54 by Björn Påhlsson plugin-runner	306
13 by Björn Påhlsson Added following support:	307	int main(int argc, char *argv[]){
24.1.69 by Björn Påhlsson added configfile as a optional argument to plugin-runner	308	char *plugindir = NULL;
	309	char *argfile = NULL;
24.1.51 by Björn Påhlsson Added configuration files support for mandos-client	310	FILE *conffp;
24.1.5 by Björn Påhlsson plugbasedclient:	311	size_t d_name_len;
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	312	DIR *dir = NULL;
13 by Björn Påhlsson Added following support:	313	struct dirent *dirst;
13 by Björn Påhlsson Added following support:	314	struct stat st;
31 by Teddy Hogeborn * plugins.d/plugbasedclient.c: Update include file comments.	315	fd_set rfds_all;
237.2.31 by Teddy Hogeborn Fixes for sscanf usage:	316	int ret, numchars, maxfd = 0;
237.2.17 by Teddy Hogeborn Eliminate warning on 64-bit systems, thanks to Frans Pop	317	ssize_t sret;
237.2.31 by Teddy Hogeborn Fixes for sscanf usage:	318	intmax_t tmpmax;
24.1.6 by Björn Påhlsson plugbasedclient	319	uid_t uid = 65534;
24.1.6 by Björn Påhlsson plugbasedclient	320	gid_t gid = 65534;
31 by Teddy Hogeborn * plugins.d/plugbasedclient.c: Update include file comments.	321	bool debug = false;
	322	int exitstatus = EXIT_SUCCESS;
24.1.7 by Björn Påhlsson merge	323	struct sigaction old_sigchld_action;
	324	struct sigaction sigchld_action = { .sa_handler = handle_sigchld,
	325	.sa_flags = SA_NOCLDSTOP };
24.1.51 by Björn Påhlsson Added configuration files support for mandos-client	326	char **custom_argv = NULL;
	327	int custom_argc = 0;
	328
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	329	/* Establish a signal handler */
	330	sigemptyset(&sigchld_action.sa_mask);
	331	ret = sigaddset(&sigchld_action.sa_mask, SIGCHLD);
24.1.54 by Björn Påhlsson plugin-runner	332	if(ret == -1){
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	333	perror("sigaddset");
24.1.54 by Björn Påhlsson plugin-runner	334	exitstatus = EXIT_FAILURE;
24.1.54 by Björn Påhlsson plugin-runner	335	goto fallback;
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	336	}
	337	ret = sigaction(SIGCHLD, &sigchld_action, &old_sigchld_action);
24.1.54 by Björn Påhlsson plugin-runner	338	if(ret == -1){
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	339	perror("sigaction");
98 by Teddy Hogeborn * plugin-runner.c (getplugin): Only copy "name" if not NULL. Free	340	exitstatus = EXIT_FAILURE;
24.1.54 by Björn Påhlsson plugin-runner	341	goto fallback;
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	342	}
	343
24.1.1 by Björn Påhlsson Added syntax and support for plugbasedclient arguments and how they	344	/* The options we understand. */
	345	struct argp_option options[] = {
	346	{ .name = "global-options", .key = 'g',
31 by Teddy Hogeborn * plugins.d/plugbasedclient.c: Update include file comments.	347	.arg = "OPTION[,OPTION[,...]]",
	348	.doc = "Options passed to all plugins" },
138 by Teddy Hogeborn * plugin-runner.c: Changed short option for "--global-env" to "-G",	349	{ .name = "global-env", .key = 'G',
78 by Teddy Hogeborn Add feature to specify custom environment variables for plugins.	350	.arg = "VAR=value",
	351	.doc = "Environment variable passed to all plugins" },
24.1.1 by Björn Påhlsson Added syntax and support for plugbasedclient arguments and how they	352	{ .name = "options-for", .key = 'o',
31 by Teddy Hogeborn * plugins.d/plugbasedclient.c: Update include file comments.	353	.arg = "PLUGIN:OPTION[,OPTION[,...]]",
	354	.doc = "Options passed only to specified plugin" },
138 by Teddy Hogeborn * plugin-runner.c: Changed short option for "--global-env" to "-G",	355	{ .name = "env-for", .key = 'E',
78 by Teddy Hogeborn Add feature to specify custom environment variables for plugins.	356	.arg = "PLUGIN:ENV=value",
	357	.doc = "Environment variable passed to specified plugin" },
31 by Teddy Hogeborn * plugins.d/plugbasedclient.c: Update include file comments.	358	{ .name = "disable", .key = 'd',
	359	.arg = "PLUGIN",
	360	.doc = "Disable a specific plugin", .group = 1 },
138 by Teddy Hogeborn * plugin-runner.c: Changed short option for "--global-env" to "-G",	361	{ .name = "enable", .key = 'e',
	362	.arg = "PLUGIN",
	363	.doc = "Enable a specific plugin", .group = 1 },
24.1.5 by Björn Påhlsson plugbasedclient:	364	{ .name = "plugin-dir", .key = 128,
31 by Teddy Hogeborn * plugins.d/plugbasedclient.c: Update include file comments.	365	.arg = "DIRECTORY",
	366	.doc = "Specify a different plugin directory", .group = 2 },
24.1.69 by Björn Påhlsson added configfile as a optional argument to plugin-runner	367	{ .name = "config-file", .key = 129,
	368	.arg = "FILE",
	369	.doc = "Specify a different configuration file", .group = 2 },
	370	{ .name = "userid", .key = 130,
	371	.arg = "ID", .flags = 0,
	372	.doc = "User ID the plugins will run as", .group = 3 },
	373	{ .name = "groupid", .key = 131,
	374	.arg = "ID", .flags = 0,
	375	.doc = "Group ID the plugins will run as", .group = 3 },
	376	{ .name = "debug", .key = 132,
	377	.doc = "Debug mode", .group = 4 },
24.1.1 by Björn Påhlsson Added syntax and support for plugbasedclient arguments and how they	378	{ .name = NULL }
	379	};
	380
237.2.29 by Teddy Hogeborn * plugin-runner.c: Only space changes.	381	error_t parse_opt(int key, char *arg, __attribute__((unused))
237.2.56 by Teddy Hogeborn * plugin-runner.c: Whitespace changes only.	382	struct argp_state *state){
	383	switch(key){
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	384	case 'g': /* --global-options */
237.2.29 by Teddy Hogeborn * plugin-runner.c: Only space changes.	385	if(arg != NULL){
24.1.134 by Björn Påhlsson plugin-runner: Added support for empty string arguments	386	char *plugin_option;
	387	while((plugin_option = strsep(&arg, ",")) != NULL){
	388	if(plugin_option[0] == '\0'){
24.1.50 by Björn Påhlsson changed from using strtok to strsep	389	continue;
	390	}
24.1.134 by Björn Påhlsson plugin-runner: Added support for empty string arguments	391	if(not add_argument(getplugin(NULL), plugin_option)){
78 by Teddy Hogeborn Add feature to specify custom environment variables for plugins.	392	perror("add_argument");
	393	return ARGP_ERR_UNKNOWN;
	394	}
	395	}
	396	}
	397	break;
138 by Teddy Hogeborn * plugin-runner.c: Changed short option for "--global-env" to "-G",	398	case 'G': /* --global-env */
78 by Teddy Hogeborn Add feature to specify custom environment variables for plugins.	399	if(arg == NULL){
	400	break;
	401	}
24.1.92 by Björn Påhlsson Several memory leaks detected by valgrind fixed	402	if(not add_environment(getplugin(NULL), arg, true)){
	403	perror("add_environment");
24.1.1 by Björn Påhlsson Added syntax and support for plugbasedclient arguments and how they	404	}
	405	break;
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	406	case 'o': /* --options-for */
237.2.29 by Teddy Hogeborn * plugin-runner.c: Only space changes.	407	if(arg != NULL){
24.1.134 by Björn Påhlsson plugin-runner: Added support for empty string arguments	408	char *plugin_name = strsep(&arg, ":");
	409	if(plugin_name[0] == '\0'){
	410	break;
	411	}
	412	char *plugin_option;
	413	while((plugin_option = strsep(&arg, ",")) != NULL){
	414	if(not add_argument(getplugin(plugin_name), plugin_option)){
24.1.90 by Björn Påhlsson fixed two bugs:	415	perror("add_argument");
24.1.90 by Björn Påhlsson fixed two bugs:	416	return ARGP_ERR_UNKNOWN;
24.1.50 by Björn Påhlsson changed from using strtok to strsep	417	}
31 by Teddy Hogeborn * plugins.d/plugbasedclient.c: Update include file comments.	418	}
24.1.1 by Björn Påhlsson Added syntax and support for plugbasedclient arguments and how they	419	}
	420	break;
138 by Teddy Hogeborn * plugin-runner.c: Changed short option for "--global-env" to "-G",	421	case 'E': /* --env-for */
78 by Teddy Hogeborn Add feature to specify custom environment variables for plugins.	422	if(arg == NULL){
	423	break;
	424	}
	425	{
	426	char *envdef = strchr(arg, ':');
	427	if(envdef == NULL){
	428	break;
	429	}
24.1.92 by Björn Påhlsson Several memory leaks detected by valgrind fixed	430	*envdef = '\0';
	431	if(not add_environment(getplugin(arg), envdef+1, true)){
78 by Teddy Hogeborn Add feature to specify custom environment variables for plugins.	432	perror("add_environment");
	433	}
	434	}
	435	break;
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	436	case 'd': /* --disable */
237.2.29 by Teddy Hogeborn * plugin-runner.c: Only space changes.	437	if(arg != NULL){
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	438	plugin *p = getplugin(arg);
78 by Teddy Hogeborn Add feature to specify custom environment variables for plugins.	439	if(p == NULL){
	440	return ARGP_ERR_UNKNOWN;
	441	}
	442	p->disabled = true;
24.1.5 by Björn Påhlsson plugbasedclient:	443	}
24.1.5 by Björn Påhlsson plugbasedclient:	444	break;
138 by Teddy Hogeborn * plugin-runner.c: Changed short option for "--global-env" to "-G",	445	case 'e': /* --enable */
237.2.29 by Teddy Hogeborn * plugin-runner.c: Only space changes.	446	if(arg != NULL){
138 by Teddy Hogeborn * plugin-runner.c: Changed short option for "--global-env" to "-G",	447	plugin *p = getplugin(arg);
	448	if(p == NULL){
	449	return ARGP_ERR_UNKNOWN;
	450	}
	451	p->disabled = false;
	452	}
	453	break;
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	454	case 128: /* --plugin-dir */
24.1.92 by Björn Påhlsson Several memory leaks detected by valgrind fixed	455	free(plugindir);
24.1.69 by Björn Påhlsson added configfile as a optional argument to plugin-runner	456	plugindir = strdup(arg);
	457	if(plugindir == NULL){
	458	perror("strdup");
	459	}
24.1.5 by Björn Påhlsson plugbasedclient:	460	break;
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	461	case 129: /* --config-file */
137 by Teddy Hogeborn * plugin-runner.c (main/parse_opt): Removed code for "--config-file".	462	/* This is already done by parse_opt_config_file() */
	463	break;
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	464	case 130: /* --userid */
237.2.31 by Teddy Hogeborn Fixes for sscanf usage:	465	ret = sscanf(arg, "%" SCNdMAX "%n", &tmpmax, &numchars);
	466	if(ret < 1 or tmpmax != (uid_t)tmpmax
	467	or arg[numchars] != '\0'){
	468	fprintf(stderr, "Bad user ID number: \"%s\", using %"
	469	PRIdMAX "\n", arg, (intmax_t)uid);
	470	} else {
	471	uid = (uid_t)tmpmax;
237.2.27 by Teddy Hogeborn * plugin-runner.c (main): Use "sscanf" instead of "strtol"; using the	472	}
24.1.6 by Björn Påhlsson plugbasedclient	473	break;
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	474	case 131: /* --groupid */
237.2.31 by Teddy Hogeborn Fixes for sscanf usage:	475	ret = sscanf(arg, "%" SCNdMAX "%n", &tmpmax, &numchars);
	476	if(ret < 1 or tmpmax != (gid_t)tmpmax
	477	or arg[numchars] != '\0'){
	478	fprintf(stderr, "Bad group ID number: \"%s\", using %"
	479	PRIdMAX "\n", arg, (intmax_t)gid);
	480	} else {
	481	gid = (gid_t)tmpmax;
237.2.27 by Teddy Hogeborn * plugin-runner.c (main): Use "sscanf" instead of "strtol"; using the	482	}
24.1.6 by Björn Påhlsson plugbasedclient	483	break;
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	484	case 132: /* --debug */
31 by Teddy Hogeborn * plugins.d/plugbasedclient.c: Update include file comments.	485	debug = true;
	486	break;
237.2.27 by Teddy Hogeborn * plugin-runner.c (main): Use "sscanf" instead of "strtol"; using the	487	/*
	488	* When adding more options before this line, remember to also add a
	489	* "case" to the "parse_opt_config_file" function below.
	490	*/
24.1.1 by Björn Påhlsson Added syntax and support for plugbasedclient arguments and how they	491	case ARGP_KEY_ARG:
178 by Teddy Hogeborn * initramfs-tools-script: Fix permissions of "/tmp" in initrd.	492	/* Cryptsetup always passes an argument, which is an empty
	493	string if "none" was specified in /etc/crypttab. So if
	494	argument was empty, we ignore it silently. */
	495	if(arg[0] != '\0'){
	496	fprintf(stderr, "Ignoring unknown argument \"%s\"\n", arg);
	497	}
24.1.1 by Björn Påhlsson Added syntax and support for plugbasedclient arguments and how they	498	break;
	499	case ARGP_KEY_END:
	500	break;
	501	default:
	502	return ARGP_ERR_UNKNOWN;
	503	}
	504	return 0;
	505	}
31 by Teddy Hogeborn * plugins.d/plugbasedclient.c: Update include file comments.	506
137 by Teddy Hogeborn * plugin-runner.c (main/parse_opt): Removed code for "--config-file".	507	/* This option parser is the same as parse_opt() above, except it
	508	ignores everything but the --config-file option. */
237.2.29 by Teddy Hogeborn * plugin-runner.c: Only space changes.	509	error_t parse_opt_config_file(int key, char *arg,
	510	__attribute__((unused))
237.2.56 by Teddy Hogeborn * plugin-runner.c: Whitespace changes only.	511	struct argp_state *state){
	512	switch(key){
137 by Teddy Hogeborn * plugin-runner.c (main/parse_opt): Removed code for "--config-file".	513	case 'g': /* --global-options */
138 by Teddy Hogeborn * plugin-runner.c: Changed short option for "--global-env" to "-G",	514	case 'G': /* --global-env */
137 by Teddy Hogeborn * plugin-runner.c (main/parse_opt): Removed code for "--config-file".	515	case 'o': /* --options-for */
138 by Teddy Hogeborn * plugin-runner.c: Changed short option for "--global-env" to "-G",	516	case 'E': /* --env-for */
137 by Teddy Hogeborn * plugin-runner.c (main/parse_opt): Removed code for "--config-file".	517	case 'd': /* --disable */
138 by Teddy Hogeborn * plugin-runner.c: Changed short option for "--global-env" to "-G",	518	case 'e': /* --enable */
137 by Teddy Hogeborn * plugin-runner.c (main/parse_opt): Removed code for "--config-file".	519	case 128: /* --plugin-dir */
	520	break;
	521	case 129: /* --config-file */
24.1.92 by Björn Påhlsson Several memory leaks detected by valgrind fixed	522	free(argfile);
137 by Teddy Hogeborn * plugin-runner.c (main/parse_opt): Removed code for "--config-file".	523	argfile = strdup(arg);
	524	if(argfile == NULL){
	525	perror("strdup");
	526	}
	527	break;
	528	case 130: /* --userid */
	529	case 131: /* --groupid */
	530	case 132: /* --debug */
	531	case ARGP_KEY_ARG:
	532	case ARGP_KEY_END:
	533	break;
	534	default:
	535	return ARGP_ERR_UNKNOWN;
	536	}
	537	return 0;
	538	}
	539
	540	struct argp argp = { .options = options,
	541	.parser = parse_opt_config_file,
136 by Teddy Hogeborn * plugin-runner.c (add_environment): Override existing environment	542	.args_doc = "",
31 by Teddy Hogeborn * plugins.d/plugbasedclient.c: Update include file comments.	543	.doc = "Mandos plugin runner -- Run plugins" };
	544
237.2.28 by Teddy Hogeborn * plugin-runner.c (main): Bug fix; do not accept a "d" character after	545	/* Parse using parse_opt_config_file() in order to get the custom
137 by Teddy Hogeborn * plugin-runner.c (main/parse_opt): Removed code for "--config-file".	546	config file location, if any. */
237.2.29 by Teddy Hogeborn * plugin-runner.c: Only space changes.	547	ret = argp_parse(&argp, argc, argv, ARGP_IN_ORDER, 0, NULL);
	548	if(ret == ARGP_ERR_UNKNOWN){
137 by Teddy Hogeborn * plugin-runner.c (main/parse_opt): Removed code for "--config-file".	549	fprintf(stderr, "Unknown error while parsing arguments\n");
	550	exitstatus = EXIT_FAILURE;
	551	goto fallback;
	552	}
	553
	554	/* Reset to the normal argument parser */
	555	argp.parser = parse_opt;
	556
136 by Teddy Hogeborn * plugin-runner.c (add_environment): Override existing environment	557	/* Open the configfile if available */
237.2.29 by Teddy Hogeborn * plugin-runner.c: Only space changes.	558	if(argfile == NULL){
24.1.69 by Björn Påhlsson added configfile as a optional argument to plugin-runner	559	conffp = fopen(AFILE, "r");
	560	} else {
	561	conffp = fopen(argfile, "r");
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	562	}
24.1.51 by Björn Påhlsson Added configuration files support for mandos-client	563	if(conffp != NULL){
	564	char *org_line = NULL;
24.1.54 by Björn Påhlsson plugin-runner	565	char p, arg, new_arg, line;
24.1.51 by Björn Påhlsson Added configuration files support for mandos-client	566	size_t size = 0;
	567	const char whitespace_delims[] = " \r\t\f\v\n";
	568	const char comment_delim[] = "#";
	569
24.1.67 by Björn Påhlsson transformed a function to a part of main	570	custom_argc = 1;
	571	custom_argv = malloc(sizeof(char) 2);
	572	if(custom_argv == NULL){
	573	perror("malloc");
	574	exitstatus = EXIT_FAILURE;
	575	goto fallback;
	576	}
	577	custom_argv[0] = argv[0];
	578	custom_argv[1] = NULL;
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	579
133 by Teddy Hogeborn * plugin-runner.c: Break a couple of long lines.	580	/* for each line in the config file, strip whitespace and ignore
	581	commented text */
24.1.51 by Björn Påhlsson Added configuration files support for mandos-client	582	while(true){
	583	sret = getline(&org_line, &size, conffp);
	584	if(sret == -1){
	585	break;
	586	}
	587
	588	line = org_line;
	589	arg = strsep(&line, comment_delim);
	590	while((p = strsep(&arg, whitespace_delims)) != NULL){
	591	if(p[0] == '\0'){
	592	continue;
	593	}
	594	new_arg = strdup(p);
24.1.69 by Björn Påhlsson added configfile as a optional argument to plugin-runner	595	if(new_arg == NULL){
	596	perror("strdup");
	597	exitstatus = EXIT_FAILURE;
	598	free(org_line);
	599	goto fallback;
	600	}
	601
24.1.67 by Björn Påhlsson transformed a function to a part of main	602	custom_argc += 1;
	603	custom_argv = realloc(custom_argv, sizeof(char *)
	604	* ((unsigned int) custom_argc + 1));
	605	if(custom_argv == NULL){
	606	perror("realloc");
24.1.51 by Björn Påhlsson Added configuration files support for mandos-client	607	exitstatus = EXIT_FAILURE;
24.1.67 by Björn Påhlsson transformed a function to a part of main	608	free(org_line);
24.1.54 by Björn Påhlsson plugin-runner	609	goto fallback;
24.1.51 by Björn Påhlsson Added configuration files support for mandos-client	610	}
24.1.67 by Björn Påhlsson transformed a function to a part of main	611	custom_argv[custom_argc-1] = new_arg;
	612	custom_argv[custom_argc] = NULL;
24.1.51 by Björn Påhlsson Added configuration files support for mandos-client	613	}
	614	}
	615	free(org_line);
136 by Teddy Hogeborn * plugin-runner.c (add_environment): Override existing environment	616	} else {
24.1.52 by Björn Påhlsson merge + minor adjustments	617	/* Check for harmful errors and go to fallback. Other errors might
24.1.52 by Björn Påhlsson merge + minor adjustments	618	not affect opening plugins */
237.2.29 by Teddy Hogeborn * plugin-runner.c: Only space changes.	619	if(errno == EMFILE or errno == ENFILE or errno == ENOMEM){
24.1.51 by Björn Påhlsson Added configuration files support for mandos-client	620	perror("fopen");
24.1.8 by Björn Påhlsson plugbasedclient	621	exitstatus = EXIT_FAILURE;
24.1.54 by Björn Påhlsson plugin-runner	622	goto fallback;
24.1.8 by Björn Påhlsson plugbasedclient	623	}
24.1.51 by Björn Påhlsson Added configuration files support for mandos-client	624	}
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	625	/* If there was any arguments from configuration file,
	626	pass them to parser as command arguments */
24.1.51 by Björn Påhlsson Added configuration files support for mandos-client	627	if(custom_argv != NULL){
237.2.29 by Teddy Hogeborn * plugin-runner.c: Only space changes.	628	ret = argp_parse(&argp, custom_argc, custom_argv, ARGP_IN_ORDER,
	629	0, NULL);
	630	if(ret == ARGP_ERR_UNKNOWN){
64 by Teddy Hogeborn * mandos-client.c (print_out_password): Strip trailing '\n'.	631	fprintf(stderr, "Unknown error while parsing arguments\n");
24.1.26 by Björn Påhlsson tally count of used symbols	632	exitstatus = EXIT_FAILURE;
24.1.54 by Björn Påhlsson plugin-runner	633	goto fallback;
24.1.26 by Björn Påhlsson tally count of used symbols	634	}
24.1.8 by Björn Påhlsson plugbasedclient	635	}
24.1.8 by Björn Påhlsson plugbasedclient	636
136 by Teddy Hogeborn * plugin-runner.c (add_environment): Override existing environment	637	/* Parse actual command line arguments, to let them override the
	638	config file */
237.2.29 by Teddy Hogeborn * plugin-runner.c: Only space changes.	639	ret = argp_parse(&argp, argc, argv, ARGP_IN_ORDER, 0, NULL);
	640	if(ret == ARGP_ERR_UNKNOWN){
136 by Teddy Hogeborn * plugin-runner.c (add_environment): Override existing environment	641	fprintf(stderr, "Unknown error while parsing arguments\n");
	642	exitstatus = EXIT_FAILURE;
	643	goto fallback;
	644	}
	645
31 by Teddy Hogeborn * plugins.d/plugbasedclient.c: Update include file comments.	646	if(debug){
	647	for(plugin *p = plugin_list; p != NULL; p=p->next){
	648	fprintf(stderr, "Plugin: %s has %d arguments\n",
32 by Teddy Hogeborn * plugins.d/plugbasedclient.c (set_cloexec_flag): New function.	649	p->name ? p->name : "Global", p->argc - 1);
31 by Teddy Hogeborn * plugins.d/plugbasedclient.c: Update include file comments.	650	for(char *a = p->argv; a != NULL; a++){
	651	fprintf(stderr, "\tArg: %s\n", *a);
	652	}
237.2.31 by Teddy Hogeborn Fixes for sscanf usage:	653	fprintf(stderr, "...and %d environment variables\n", p->envc);
78 by Teddy Hogeborn Add feature to specify custom environment variables for plugins.	654	for(char *a = p->environ; a != NULL; a++){
	655	fprintf(stderr, "\t%s\n", *a);
	656	}
31 by Teddy Hogeborn * plugins.d/plugbasedclient.c: Update include file comments.	657	}
	658	}
136 by Teddy Hogeborn * plugin-runner.c (add_environment): Override existing environment	659
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	660	/* Strip permissions down to nobody */
237.2.62 by Teddy Hogeborn * plugin-runner.c (main): Bug fix: Do setgid before setuid.	661	setgid(gid);
	662	if(ret == -1){
	663	perror("setgid");
	664	}
24.1.6 by Björn Påhlsson plugbasedclient	665	ret = setuid(uid);
237.2.29 by Teddy Hogeborn * plugin-runner.c: Only space changes.	666	if(ret == -1){
24.1.6 by Björn Påhlsson plugbasedclient	667	perror("setuid");
24.1.6 by Björn Påhlsson plugbasedclient	668	}
136 by Teddy Hogeborn * plugin-runner.c (add_environment): Override existing environment	669
237.2.29 by Teddy Hogeborn * plugin-runner.c: Only space changes.	670	if(plugindir == NULL){
24.1.69 by Björn Påhlsson added configfile as a optional argument to plugin-runner	671	dir = opendir(PDIR);
	672	} else {
	673	dir = opendir(plugindir);
	674	}
24.1.6 by Björn Påhlsson plugbasedclient	675
34 by Teddy Hogeborn * plugbasedclient.c (main): Check if plugin dir could be opened. Set	676	if(dir == NULL){
	677	perror("Could not open plugin dir");
	678	exitstatus = EXIT_FAILURE;
24.1.54 by Björn Påhlsson plugin-runner	679	goto fallback;
31 by Teddy Hogeborn * plugins.d/plugbasedclient.c: Update include file comments.	680	}
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	681
34 by Teddy Hogeborn * plugbasedclient.c (main): Check if plugin dir could be opened. Set	682	/* Set the FD_CLOEXEC flag on the directory, if possible */
	683	{
	684	int dir_fd = dirfd(dir);
	685	if(dir_fd >= 0){
	686	ret = set_cloexec_flag(dir_fd);
	687	if(ret < 0){
	688	perror("set_cloexec_flag");
	689	exitstatus = EXIT_FAILURE;
24.1.54 by Björn Påhlsson plugin-runner	690	goto fallback;
34 by Teddy Hogeborn * plugbasedclient.c (main): Check if plugin dir could be opened. Set	691	}
	692	}
	693	}
24.1.1 by Björn Påhlsson Added syntax and support for plugbasedclient arguments and how they	694
31 by Teddy Hogeborn * plugins.d/plugbasedclient.c: Update include file comments.	695	FD_ZERO(&rfds_all);
136 by Teddy Hogeborn * plugin-runner.c (add_environment): Override existing environment	696
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	697	/* Read and execute any executable in the plugin directory*/
13 by Björn Påhlsson Added following support:	698	while(true){
	699	dirst = readdir(dir);
	700
136 by Teddy Hogeborn * plugin-runner.c (add_environment): Override existing environment	701	/* All directory entries have been processed */
13 by Björn Påhlsson Added following support:	702	if(dirst == NULL){
237.2.29 by Teddy Hogeborn * plugin-runner.c: Only space changes.	703	if(errno == EBADF){
24.1.26 by Björn Påhlsson tally count of used symbols	704	perror("readdir");
24.1.26 by Björn Påhlsson tally count of used symbols	705	exitstatus = EXIT_FAILURE;
24.1.54 by Björn Påhlsson plugin-runner	706	goto fallback;
24.1.26 by Björn Påhlsson tally count of used symbols	707	}
13 by Björn Påhlsson Added following support:	708	break;
	709	}
	710
	711	d_name_len = strlen(dirst->d_name);
	712
136 by Teddy Hogeborn * plugin-runner.c (add_environment): Override existing environment	713	/* Ignore dotfiles, backup files and other junk */
31 by Teddy Hogeborn * plugins.d/plugbasedclient.c: Update include file comments.	714	{
	715	bool bad_name = false;
	716
	717	const char const *bad_prefixes[] = { ".", "#", NULL };
	718
	719	const char const *bad_suffixes[] = { "~", "#", ".dpkg-new",
	720	".dpkg-old",
236 by Teddy Hogeborn * initramfs-tools-hook: Also ignore plugins named "*.dpkg-bak".	721	".dpkg-bak",
31 by Teddy Hogeborn * plugins.d/plugbasedclient.c: Update include file comments.	722	".dpkg-divert", NULL };
	723	for(const char *pre = bad_prefixes; pre != NULL; pre++){
	724	size_t pre_len = strlen(*pre);
	725	if((d_name_len >= pre_len)
	726	and strncmp((dirst->d_name), *pre, pre_len) == 0){
	727	if(debug){
34 by Teddy Hogeborn * plugbasedclient.c (main): Check if plugin dir could be opened. Set	728	fprintf(stderr, "Ignoring plugin dir entry \"%s\""
31 by Teddy Hogeborn * plugins.d/plugbasedclient.c: Update include file comments.	729	" with bad prefix %s\n", dirst->d_name, *pre);
	730	}
	731	bad_name = true;
	732	break;
	733	}
	734	}
	735	if(bad_name){
	736	continue;
	737	}
	738	for(const char *suf = bad_suffixes; suf != NULL; suf++){
	739	size_t suf_len = strlen(*suf);
	740	if((d_name_len >= suf_len)
	741	and (strcmp((dirst->d_name)+d_name_len-suf_len, *suf)
	742	== 0)){
	743	if(debug){
34 by Teddy Hogeborn * plugbasedclient.c (main): Check if plugin dir could be opened. Set	744	fprintf(stderr, "Ignoring plugin dir entry \"%s\""
31 by Teddy Hogeborn * plugins.d/plugbasedclient.c: Update include file comments.	745	" with bad suffix %s\n", dirst->d_name, *suf);
	746	}
	747	bad_name = true;
	748	break;
	749	}
	750	}
	751
	752	if(bad_name){
	753	continue;
	754	}
13 by Björn Påhlsson Added following support:	755	}
78 by Teddy Hogeborn Add feature to specify custom environment variables for plugins.	756
	757	char *filename;
169 by Teddy Hogeborn * plugin-runner.c (main): Bug fix: use built-in default value if	758	if(plugindir == NULL){
	759	ret = asprintf(&filename, PDIR "/%s", dirst->d_name);
	760	} else {
	761	ret = asprintf(&filename, "%s/%s", plugindir, dirst->d_name);
	762	}
78 by Teddy Hogeborn Add feature to specify custom environment variables for plugins.	763	if(ret < 0){
	764	perror("asprintf");
24.1.46 by Björn Påhlsson mandos-client	765	continue;
31 by Teddy Hogeborn * plugins.d/plugbasedclient.c: Update include file comments.	766	}
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	767
24.1.26 by Björn Påhlsson tally count of used symbols	768	ret = stat(filename, &st);
237.2.29 by Teddy Hogeborn * plugin-runner.c: Only space changes.	769	if(ret == -1){
24.1.26 by Björn Påhlsson tally count of used symbols	770	perror("stat");
24.1.46 by Björn Påhlsson mandos-client	771	free(filename);
24.1.46 by Björn Påhlsson mandos-client	772	continue;
24.1.26 by Björn Påhlsson tally count of used symbols	773	}
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	774
	775	/* Ignore non-executable files */
237.2.29 by Teddy Hogeborn * plugin-runner.c: Only space changes.	776	if(not S_ISREG(st.st_mode) or (access(filename, X_OK) != 0)){
31 by Teddy Hogeborn * plugins.d/plugbasedclient.c: Update include file comments.	777	if(debug){
34 by Teddy Hogeborn * plugbasedclient.c (main): Check if plugin dir could be opened. Set	778	fprintf(stderr, "Ignoring plugin dir entry \"%s\""
31 by Teddy Hogeborn * plugins.d/plugbasedclient.c: Update include file comments.	779	" with bad type or mode\n", filename);
	780	}
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	781	free(filename);
31 by Teddy Hogeborn * plugins.d/plugbasedclient.c: Update include file comments.	782	continue;
	783	}
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	784
	785	plugin *p = getplugin(dirst->d_name);
78 by Teddy Hogeborn Add feature to specify custom environment variables for plugins.	786	if(p == NULL){
	787	perror("getplugin");
	788	free(filename);
	789	continue;
	790	}
	791	if(p->disabled){
31 by Teddy Hogeborn * plugins.d/plugbasedclient.c: Update include file comments.	792	if(debug){
34 by Teddy Hogeborn * plugbasedclient.c (main): Check if plugin dir could be opened. Set	793	fprintf(stderr, "Ignoring disabled plugin \"%s\"\n",
31 by Teddy Hogeborn * plugins.d/plugbasedclient.c: Update include file comments.	794	dirst->d_name);
	795	}
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	796	free(filename);
31 by Teddy Hogeborn * plugins.d/plugbasedclient.c: Update include file comments.	797	continue;
	798	}
32 by Teddy Hogeborn * plugins.d/plugbasedclient.c (set_cloexec_flag): New function.	799	{
	800	/* Add global arguments to argument list for this plugin */
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	801	plugin *g = getplugin(NULL);
78 by Teddy Hogeborn Add feature to specify custom environment variables for plugins.	802	if(g != NULL){
	803	for(char *a = g->argv + 1; a != NULL; a++){
	804	if(not add_argument(p, *a)){
	805	perror("add_argument");
	806	}
	807	}
	808	/* Add global environment variables */
	809	for(char *e = g->environ; e != NULL; e++){
136 by Teddy Hogeborn * plugin-runner.c (add_environment): Override existing environment	810	if(not add_environment(p, *e, false)){
78 by Teddy Hogeborn Add feature to specify custom environment variables for plugins.	811	perror("add_environment");
	812	}
	813	}
	814	}
	815	}
	816	/* If this plugin has any environment variables, we will call
	817	using execve and need to duplicate the environment from this
	818	process, too. */
	819	if(p->environ[0] != NULL){
	820	for(char *e = environ; e != NULL; e++){
136 by Teddy Hogeborn * plugin-runner.c (add_environment): Override existing environment	821	if(not add_environment(p, *e, false)){
78 by Teddy Hogeborn Add feature to specify custom environment variables for plugins.	822	perror("add_environment");
	823	}
	824	}
	825	}
	826
98 by Teddy Hogeborn * plugin-runner.c (getplugin): Only copy "name" if not NULL. Free	827	int pipefd[2];
34 by Teddy Hogeborn * plugbasedclient.c (main): Check if plugin dir could be opened. Set	828	ret = pipe(pipefd);
237.2.29 by Teddy Hogeborn * plugin-runner.c: Only space changes.	829	if(ret == -1){
34 by Teddy Hogeborn * plugbasedclient.c (main): Check if plugin dir could be opened. Set	830	perror("pipe");
	831	exitstatus = EXIT_FAILURE;
24.1.54 by Björn Påhlsson plugin-runner	832	goto fallback;
34 by Teddy Hogeborn * plugbasedclient.c (main): Check if plugin dir could be opened. Set	833	}
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	834	/* Ask OS to automatic close the pipe on exec */
34 by Teddy Hogeborn * plugbasedclient.c (main): Check if plugin dir could be opened. Set	835	ret = set_cloexec_flag(pipefd[0]);
	836	if(ret < 0){
	837	perror("set_cloexec_flag");
	838	exitstatus = EXIT_FAILURE;
24.1.54 by Björn Påhlsson plugin-runner	839	goto fallback;
34 by Teddy Hogeborn * plugbasedclient.c (main): Check if plugin dir could be opened. Set	840	}
	841	ret = set_cloexec_flag(pipefd[1]);
	842	if(ret < 0){
	843	perror("set_cloexec_flag");
	844	exitstatus = EXIT_FAILURE;
24.1.54 by Björn Påhlsson plugin-runner	845	goto fallback;
34 by Teddy Hogeborn * plugbasedclient.c (main): Check if plugin dir could be opened. Set	846	}
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	847	/* Block SIGCHLD until process is safely in process list */
237.2.29 by Teddy Hogeborn * plugin-runner.c: Only space changes.	848	ret = sigprocmask(SIG_BLOCK, &sigchld_action.sa_mask, NULL);
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	849	if(ret < 0){
	850	perror("sigprocmask");
	851	exitstatus = EXIT_FAILURE;
24.1.54 by Björn Påhlsson plugin-runner	852	goto fallback;
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	853	}
136 by Teddy Hogeborn * plugin-runner.c (add_environment): Override existing environment	854	/* Starting a new process to be watched */
31 by Teddy Hogeborn * plugins.d/plugbasedclient.c: Update include file comments.	855	pid_t pid = fork();
24.1.46 by Björn Påhlsson mandos-client	856	if(pid == -1){
	857	perror("fork");
	858	exitstatus = EXIT_FAILURE;
24.1.54 by Björn Påhlsson plugin-runner	859	goto fallback;
24.1.46 by Björn Påhlsson mandos-client	860	}
31 by Teddy Hogeborn * plugins.d/plugbasedclient.c: Update include file comments.	861	if(pid == 0){
	862	/* this is the child process */
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	863	ret = sigaction(SIGCHLD, &old_sigchld_action, NULL);
	864	if(ret < 0){
	865	perror("sigaction");
	866	_exit(EXIT_FAILURE);
	867	}
210 by Teddy Hogeborn * debian/mandos-client.postinst: Change home directory to	868	ret = sigprocmask(SIG_UNBLOCK, &sigchld_action.sa_mask, NULL);
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	869	if(ret < 0){
	870	perror("sigprocmask");
	871	_exit(EXIT_FAILURE);
	872	}
210 by Teddy Hogeborn * debian/mandos-client.postinst: Change home directory to	873
24.1.26 by Björn Påhlsson tally count of used symbols	874	ret = dup2(pipefd[1], STDOUT_FILENO); /* replace our stdout */
	875	if(ret == -1){
	876	perror("dup2");
	877	_exit(EXIT_FAILURE);
	878	}
34 by Teddy Hogeborn * plugbasedclient.c (main): Check if plugin dir could be opened. Set	879
	880	if(dirfd(dir) < 0){
	881	/* If dir has no file descriptor, we could not set FD_CLOEXEC
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	882	above and must now close it manually here. */
34 by Teddy Hogeborn * plugbasedclient.c (main): Check if plugin dir could be opened. Set	883	closedir(dir);
33 by Teddy Hogeborn * plugins.d/plugbasedclient.c (main): Close the pipe fd after dup2:ing	884	}
78 by Teddy Hogeborn Add feature to specify custom environment variables for plugins.	885	if(p->environ[0] == NULL){
	886	if(execv(filename, p->argv) < 0){
	887	perror("execv");
	888	_exit(EXIT_FAILURE);
	889	}
	890	} else {
	891	if(execve(filename, p->argv, p->environ) < 0){
	892	perror("execve");
	893	_exit(EXIT_FAILURE);
	894	}
31 by Teddy Hogeborn * plugins.d/plugbasedclient.c: Update include file comments.	895	}
	896	/* no return */
	897	}
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	898	/* Parent process */
	899	close(pipefd[1]); /* Close unused write end of pipe */
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	900	free(filename);
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	901	plugin *new_plugin = getplugin(dirst->d_name);
237.2.29 by Teddy Hogeborn * plugin-runner.c: Only space changes.	902	if(new_plugin == NULL){
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	903	perror("getplugin");
237.2.29 by Teddy Hogeborn * plugin-runner.c: Only space changes.	904	ret = sigprocmask(SIG_UNBLOCK, &sigchld_action.sa_mask, NULL);
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	905	if(ret < 0){
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	906	perror("sigprocmask");
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	907	}
31 by Teddy Hogeborn * plugins.d/plugbasedclient.c: Update include file comments.	908	exitstatus = EXIT_FAILURE;
24.1.54 by Björn Påhlsson plugin-runner	909	goto fallback;
31 by Teddy Hogeborn * plugins.d/plugbasedclient.c: Update include file comments.	910	}
	911
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	912	new_plugin->pid = pid;
	913	new_plugin->fd = pipefd[0];
	914
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	915	/* Unblock SIGCHLD so signal handler can be run if this process
	916	has already completed */
237.2.29 by Teddy Hogeborn * plugin-runner.c: Only space changes.	917	ret = sigprocmask(SIG_UNBLOCK, &sigchld_action.sa_mask, NULL);
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	918	if(ret < 0){
	919	perror("sigprocmask");
	920	exitstatus = EXIT_FAILURE;
24.1.54 by Björn Påhlsson plugin-runner	921	goto fallback;
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	922	}
	923
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	924	FD_SET(new_plugin->fd, &rfds_all);
34 by Teddy Hogeborn * plugbasedclient.c (main): Check if plugin dir could be opened. Set	925
237.2.29 by Teddy Hogeborn * plugin-runner.c: Only space changes.	926	if(maxfd < new_plugin->fd){
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	927	maxfd = new_plugin->fd;
31 by Teddy Hogeborn * plugins.d/plugbasedclient.c: Update include file comments.	928	}
13 by Björn Påhlsson Added following support:	929	}
34 by Teddy Hogeborn * plugbasedclient.c (main): Check if plugin dir could be opened. Set	930
13 by Björn Påhlsson Added following support:	931	closedir(dir);
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	932	dir = NULL;
24.1.132 by Björn Påhlsson Fixed a bug in fallback handling	933	free_plugin(getplugin(NULL));
210 by Teddy Hogeborn * debian/mandos-client.postinst: Change home directory to	934
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	935	for(plugin *p = plugin_list; p != NULL; p = p->next){
	936	if(p->pid != 0){
	937	break;
	938	}
	939	if(p->next == NULL){
	940	fprintf(stderr, "No plugin processes started. Incorrect plugin"
	941	" directory?\n");
	942	free_plugin_list();
	943	}
34 by Teddy Hogeborn * plugbasedclient.c (main): Check if plugin dir could be opened. Set	944	}
210 by Teddy Hogeborn * debian/mandos-client.postinst: Change home directory to	945
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	946	/* Main loop while running plugins exist */
	947	while(plugin_list){
34 by Teddy Hogeborn * plugbasedclient.c (main): Check if plugin dir could be opened. Set	948	fd_set rfds = rfds_all;
	949	int select_ret = select(maxfd+1, &rfds, NULL, NULL, NULL);
237.2.29 by Teddy Hogeborn * plugin-runner.c: Only space changes.	950	if(select_ret == -1){
34 by Teddy Hogeborn * plugbasedclient.c (main): Check if plugin dir could be opened. Set	951	perror("select");
	952	exitstatus = EXIT_FAILURE;
24.1.54 by Björn Påhlsson plugin-runner	953	goto fallback;
34 by Teddy Hogeborn * plugbasedclient.c (main): Check if plugin dir could be opened. Set	954	}
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	955	/* OK, now either a process completed, or something can be read
	956	from one of them */
24.1.92 by Björn Påhlsson Several memory leaks detected by valgrind fixed	957	for(plugin *proc = plugin_list; proc != NULL;){
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	958	/* Is this process completely done? */
237.2.60 by Teddy Hogeborn * plugin-runner.c (struct plugin.status): Changed type to "int".	959	if(proc->completed and proc->eof){
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	960	/* Only accept the plugin output if it exited cleanly */
	961	if(not WIFEXITED(proc->status)
	962	or WEXITSTATUS(proc->status) != 0){
	963	/* Bad exit by plugin */
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	964
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	965	if(debug){
	966	if(WIFEXITED(proc->status)){
237.2.64 by Teddy Hogeborn * plugin-runner.c (main): If debugging, print name of failed plugins.	967	fprintf(stderr, "Plugin %s [%" PRIdMAX "] exited with"
	968	" status %d\n", proc->name,
	969	(intmax_t) (proc->pid),
60 by Teddy Hogeborn * mandos-client.c (main): Cast pid_t to unsigned int before printing.	970	WEXITSTATUS(proc->status));
237.2.56 by Teddy Hogeborn * plugin-runner.c: Whitespace changes only.	971	} else if(WIFSIGNALED(proc->status)){
237.2.64 by Teddy Hogeborn * plugin-runner.c (main): If debugging, print name of failed plugins.	972	fprintf(stderr, "Plugin %s [%" PRIdMAX "] killed by"
	973	" signal %d\n", proc->name,
	974	(intmax_t) (proc->pid),
60 by Teddy Hogeborn * mandos-client.c (main): Cast pid_t to unsigned int before printing.	975	WTERMSIG(proc->status));
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	976	} else if(WCOREDUMP(proc->status)){
237.2.64 by Teddy Hogeborn * plugin-runner.c (main): If debugging, print name of failed plugins.	977	fprintf(stderr, "Plugin %s [%" PRIdMAX "] dumped"
	978	" core\n", proc->name, (intmax_t) (proc->pid));
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	979	}
	980	}
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	981
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	982	/* Remove the plugin */
	983	FD_CLR(proc->fd, &rfds_all);
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	984
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	985	/* Block signal while modifying process_list */
102 by Teddy Hogeborn * plugin-runner.c (process): Set "completed" and "status" as volatile.	986	ret = sigprocmask(SIG_BLOCK, &sigchld_action.sa_mask, NULL);
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	987	if(ret < 0){
	988	perror("sigprocmask");
	989	exitstatus = EXIT_FAILURE;
24.1.54 by Björn Påhlsson plugin-runner	990	goto fallback;
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	991	}
24.1.92 by Björn Påhlsson Several memory leaks detected by valgrind fixed	992
210 by Teddy Hogeborn * debian/mandos-client.postinst: Change home directory to	993	plugin *next_plugin = proc->next;
	994	free_plugin(proc);
	995	proc = next_plugin;
	996
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	997	/* We are done modifying process list, so unblock signal */
237.2.29 by Teddy Hogeborn * plugin-runner.c: Only space changes.	998	ret = sigprocmask(SIG_UNBLOCK, &sigchld_action.sa_mask,
	999	NULL);
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	1000	if(ret < 0){
	1001	perror("sigprocmask");
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	1002	exitstatus = EXIT_FAILURE;
	1003	goto fallback;
	1004	}
	1005
	1006	if(plugin_list == NULL){
	1007	break;
	1008	}
24.1.92 by Björn Påhlsson Several memory leaks detected by valgrind fixed	1009
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	1010	continue;
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	1011	}
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	1012
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	1013	/* This process exited nicely, so print its buffer */
210 by Teddy Hogeborn * debian/mandos-client.postinst: Change home directory to	1014
102 by Teddy Hogeborn * plugin-runner.c (process): Set "completed" and "status" as volatile.	1015	bool bret = print_out_password(proc->buffer,
	1016	proc->buffer_length);
24.1.42 by Björn Påhlsson Added fallback to mandos-client	1017	if(not bret){
	1018	perror("print_out_password");
	1019	exitstatus = EXIT_FAILURE;
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	1020	}
24.1.54 by Björn Påhlsson plugin-runner	1021	goto fallback;
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	1022	}
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	1023
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	1024	/* This process has not completed. Does it have any output? */
	1025	if(proc->eof or not FD_ISSET(proc->fd, &rfds)){
	1026	/* This process had nothing to say at this time */
24.1.92 by Björn Påhlsson Several memory leaks detected by valgrind fixed	1027	proc = proc->next;
34 by Teddy Hogeborn * plugbasedclient.c (main): Check if plugin dir could be opened. Set	1028	continue;
	1029	}
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	1030	/* Before reading, make the process' data buffer large enough */
34 by Teddy Hogeborn * plugbasedclient.c (main): Check if plugin dir could be opened. Set	1031	if(proc->buffer_length + BUFFER_SIZE > proc->buffer_size){
	1032	proc->buffer = realloc(proc->buffer, proc->buffer_size
	1033	+ (size_t) BUFFER_SIZE);
237.2.29 by Teddy Hogeborn * plugin-runner.c: Only space changes.	1034	if(proc->buffer == NULL){
34 by Teddy Hogeborn * plugbasedclient.c (main): Check if plugin dir could be opened. Set	1035	perror("malloc");
	1036	exitstatus = EXIT_FAILURE;
24.1.54 by Björn Påhlsson plugin-runner	1037	goto fallback;
34 by Teddy Hogeborn * plugbasedclient.c (main): Check if plugin dir could be opened. Set	1038	}
	1039	proc->buffer_size += BUFFER_SIZE;
	1040	}
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	1041	/* Read from the process */
237.2.17 by Teddy Hogeborn Eliminate warning on 64-bit systems, thanks to Frans Pop	1042	sret = read(proc->fd, proc->buffer + proc->buffer_length,
	1043	BUFFER_SIZE);
	1044	if(sret < 0){
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	1045	/* Read error from this process; ignore the error */
24.1.92 by Björn Påhlsson Several memory leaks detected by valgrind fixed	1046	proc = proc->next;
34 by Teddy Hogeborn * plugbasedclient.c (main): Check if plugin dir could be opened. Set	1047	continue;
	1048	}
237.2.17 by Teddy Hogeborn Eliminate warning on 64-bit systems, thanks to Frans Pop	1049	if(sret == 0){
34 by Teddy Hogeborn * plugbasedclient.c (main): Check if plugin dir could be opened. Set	1050	/* got EOF */
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	1051	proc->eof = true;
	1052	} else {
237.2.17 by Teddy Hogeborn Eliminate warning on 64-bit systems, thanks to Frans Pop	1053	proc->buffer_length += (size_t) sret;
13 by Björn Påhlsson Added following support:	1054	}
	1055	}
	1056	}
24.1.45 by Björn Påhlsson Fixed fallback on error in mandos-client	1057
	1058
24.1.54 by Björn Påhlsson plugin-runner	1059	fallback:
24.1.42 by Björn Påhlsson Added fallback to mandos-client	1060
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	1061	if(plugin_list == NULL or exitstatus != EXIT_SUCCESS){
102 by Teddy Hogeborn * plugin-runner.c (process): Set "completed" and "status" as volatile.	1062	/* Fallback if all plugins failed, none are found or an error
	1063	occured */
24.1.42 by Björn Påhlsson Added fallback to mandos-client	1064	bool bret;
	1065	fprintf(stderr, "Going to fallback mode using getpass(3)\n");
	1066	char *passwordbuffer = getpass("Password: ");
168 by Teddy Hogeborn * initramfs-tools-hook: Use long options where available. Use only	1067	size_t len = strlen(passwordbuffer);
	1068	/* Strip trailing newline */
	1069	if(len > 0 and passwordbuffer[len-1] == '\n'){
	1070	passwordbuffer[len-1] = '\0'; /* not strictly necessary */
	1071	len--;
	1072	}
	1073	bret = print_out_password(passwordbuffer, len);
24.1.42 by Björn Påhlsson Added fallback to mandos-client	1074	if(not bret){
	1075	perror("print_out_password");
	1076	exitstatus = EXIT_FAILURE;
	1077	}
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	1078	}
24.1.42 by Björn Påhlsson Added fallback to mandos-client	1079
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	1080	/* Restore old signal handler */
24.1.54 by Björn Påhlsson plugin-runner	1081	ret = sigaction(SIGCHLD, &old_sigchld_action, NULL);
	1082	if(ret == -1){
	1083	perror("sigaction");
	1084	exitstatus = EXIT_FAILURE;
	1085	}
210 by Teddy Hogeborn * debian/mandos-client.postinst: Change home directory to	1086
24.1.54 by Björn Påhlsson plugin-runner	1087	if(custom_argv != NULL){
24.1.67 by Björn Påhlsson transformed a function to a part of main	1088	for(char *arg = custom_argv+1; arg != NULL; arg++){
24.1.54 by Björn Påhlsson plugin-runner	1089	free(*arg);
78 by Teddy Hogeborn Add feature to specify custom environment variables for plugins.	1090	}
24.1.54 by Björn Påhlsson plugin-runner	1091	free(custom_argv);
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	1092	}
	1093
	1094	if(dir != NULL){
	1095	closedir(dir);
	1096	}
	1097
210 by Teddy Hogeborn * debian/mandos-client.postinst: Change home directory to	1098	/* Kill the processes */
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	1099	for(plugin *p = plugin_list; p != NULL; p = p->next){
	1100	if(p->pid != 0){
	1101	close(p->fd);
	1102	ret = kill(p->pid, SIGTERM);
	1103	if(ret == -1 and errno != ESRCH){
	1104	/* Set-uid proccesses might not get closed */
	1105	perror("kill");
	1106	}
24.1.26 by Björn Påhlsson tally count of used symbols	1107	}
13 by Björn Påhlsson Added following support:	1108	}
13 by Björn Påhlsson Added following support:	1109
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	1110	/* Wait for any remaining child processes to terminate */
	1111	do{
	1112	ret = wait(NULL);
	1113	} while(ret >= 0);
	1114	if(errno != ECHILD){
	1115	perror("wait");
	1116	}
210 by Teddy Hogeborn * debian/mandos-client.postinst: Change home directory to	1117
24.1.76 by Björn Påhlsson Rearranged so plugins and processes is the same thing	1118	free_plugin_list();
	1119
24.1.69 by Björn Påhlsson added configfile as a optional argument to plugin-runner	1120	free(plugindir);
	1121	free(argfile);
35 by Teddy Hogeborn * plugbasedclient.c (struct process): New fields "eof", "completed",	1122
31 by Teddy Hogeborn * plugins.d/plugbasedclient.c: Update include file comments.	1123	return exitstatus;
13 by Björn Påhlsson Added following support:	1124	}