51
52
struct process *next;
55
typedef struct plugin{
56
char *name; /* can be "global" and any plugin name */
62
plugin *getplugin(char *name, plugin **plugin_list){
63
for (plugin *p = *plugin_list; p != NULL; p = p->next){
65
or (p->name and name and (strcmp(p->name, name) == 0))){
69
/* Create a new plugin */
70
plugin *new_plugin = malloc(sizeof(plugin));
71
if (new_plugin == NULL){
75
new_plugin->name = name;
76
new_plugin->argv = malloc(sizeof(char *) * 2);
77
if (new_plugin->argv == NULL){
81
new_plugin->argv[0] = name;
82
new_plugin->argv[1] = NULL;
84
/* Append the new plugin to the list */
85
new_plugin->next = *plugin_list;
86
*plugin_list = new_plugin;
90
void addarguments(plugin *p, char *arg){
91
p->argv[p->argc] = arg;
92
p->argv = realloc(p->argv, sizeof(char *) * (size_t)(p->argc + 2));
98
p->argv[p->argc] = NULL;
54
101
#define BUFFER_SIZE 256
103
const char *argp_program_version =
104
"plugbasedclient 0.9";
105
const char *argp_program_bug_address =
106
"<mandos@fukt.bsnet.se>";
108
"Mandos plugin runner -- Run Mandos plugins";
109
/* A description of the arguments we accept. */
110
static char args_doc[] = "";
56
112
int main(int argc, char *argv[]){
57
113
char plugindir[] = "plugins.d";
58
114
size_t d_name_len, plugindir_len = sizeof(plugindir)-1;
63
119
int ret, maxfd = 0;
64
120
process *process_list = NULL;
122
/* The options we understand. */
123
struct argp_option options[] = {
124
{ .name = "global-options", .key = 'g',
125
.arg = "option[,option[,...]]", .flags = 0,
126
.doc = "Options effecting all plugins" },
127
{ .name = "options-for", .key = 'o',
128
.arg = "plugin:option[,option[,...]]", .flags = 0,
129
.doc = "Options effecting only specified plugins" },
133
error_t parse_opt (int key, char *arg, struct argp_state *state) {
134
/* Get the INPUT argument from `argp_parse', which we
135
know is a pointer to our arguments structure. */
136
plugin **plugins = state->input;
140
char *p = strtok(arg, ",");
142
addarguments(getplugin(NULL, plugins), p);
143
p = strtok(NULL, ",");
149
char *name = strtok(arg, ":");
150
char *p = strtok(NULL, ":");
153
addarguments(getplugin(name, plugins), p);
154
p = strtok(NULL, ",");
164
return ARGP_ERR_UNKNOWN;
169
plugin *plugin_list = NULL;
171
struct argp argp = { .options = options, .parser = parse_opt,
172
.args_doc = args_doc, .doc = doc };
174
argp_parse (&argp, argc, argv, 0, 0, &plugin_list);
176
/* for(plugin *p = plugin_list; p != NULL; p=p->next){ */
177
/* fprintf(stderr, "Plugin: %s has %d arguments\n", p->name ? p->name : "Global", p->argc); */
178
/* for(char **a = p->argv + 1; *a != NULL; a++){ */
179
/* fprintf(stderr, "\tArg: %s\n", *a); */
66
185
dir = opendir(plugindir);
69
188
fprintf(stderr, "Can not open directory\n");
70
189
return EXIT_FAILURE;
99
218
// Starting a new process to be watched
100
219
process *new_process = malloc(sizeof(process));
103
226
new_process->pid = fork();
104
227
if(new_process->pid == 0){
105
228
/* this is the child process */
107
230
close(pipefd[0]); /* close unused read end of pipe */
108
231
dup2(pipefd[1], STDOUT_FILENO); /* replace our stdout */
109
/* create a new modified argument list */
110
char **new_argv = malloc(sizeof(char *)
111
* ((unsigned int) argc + 1));
112
new_argv[0] = filename;
113
for(int i = 1; i < argc; i++){
114
new_argv[i] = argv[i];
116
new_argv[argc] = NULL;
117
if(execv(filename, new_argv) < 0){
233
basename = strrchr(filename, '/');
234
if (basename == NULL){
239
plugin *p = getplugin(basename, &plugin_list);
241
plugin *g = getplugin(NULL, &plugin_list);
242
for(char **a = g->argv + 1; *a != NULL; a++){
245
if(execv(filename, p->argv) < 0){
119
247
close(pipefd[1]);
120
248
exit(EXIT_FAILURE);
180
308
waitpid(process_itr->pid, &status, 0);
181
309
if(WIFEXITED(status) and WEXITSTATUS(status) == 0){
182
write(STDOUT_FILENO, process_itr->buffer,
183
process_itr->buffer_length);
310
for(size_t written = 0;
311
written < process_itr->buffer_length;){
312
ret = write(STDOUT_FILENO,
313
process_itr->buffer + written,
314
process_itr->buffer_length - written);
319
written += (size_t)ret;
186
323
FD_CLR(process_itr->fd, &rfds_orig);