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- Committer: Teddy Hogeborn
- Date: 2015-07-16 20:30:35 UTC
- Revision ID: teddy@recompile.se-20150716203035-z7qjwm270o2vrjah
Assume the C11 language (ISO 9899:2011), when compiling C code.
* Makefile (LANGUAGE): Changed to "-std=gnu11".
* Makefile (LANGUAGE): Changed to "-std=gnu11".
added
removed
plugin-runner.c
2
2
/*
3
3
* Mandos plugin runner - Run Mandos plugins
4
4
*
5
* Copyright © 2008-2016 Teddy Hogeborn
6
* Copyright © 2008-2016 Björn Påhlsson
5
* Copyright © 2008-2014 Teddy Hogeborn
6
* Copyright © 2008-2014 Björn Påhlsson
7
7
*
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* This program is free software: you can redistribute it and/or
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9
* modify it under the terms of the GNU General Public License as
37
37
#include <sys/select.h> /* fd_set, select(), FD_ZERO(),
38
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FD_SET(), FD_ISSET(), FD_CLR */
39
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#include <sys/wait.h> /* wait(), waitpid(), WIFEXITED(),
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WEXITSTATUS(), WTERMSIG() */
40
WEXITSTATUS(), WTERMSIG(),
41
WCOREDUMP() */
41
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#include <sys/stat.h> /* struct stat, fstat(), S_ISREG() */
42
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#include <iso646.h> /* and, or, not */
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#include <dirent.h> /* struct dirent, scandirat() */
700
701
custom_argc += 1;
701
702
{
702
703
char **new_argv = realloc(custom_argv, sizeof(char *)
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* ((size_t)custom_argc + 1));
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* ((unsigned int)
705
custom_argc + 1));
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if(new_argv == NULL){
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error(0, errno, "realloc");
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exitstatus = EX_OSERR;
825
827
}
826
828
}
827
829
}
828
close(plugindir_fd);
830
TEMP_FAILURE_RETRY(close(plugindir_fd));
829
831
}
830
832
}
831
833
890
892
return 1;
891
893
}
892
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895
#ifdef __GLIBC__
896
#if __GLIBC_PREREQ(2, 15)
893
897
int numplugins = scandirat(dir_fd, ".", &direntries, good_name,
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alphasort);
899
#else /* not __GLIBC_PREREQ(2, 15) */
900
int numplugins = scandir(plugindir != NULL ? plugindir : PDIR,
901
&direntries, good_name, alphasort);
902
#endif /* not __GLIBC_PREREQ(2, 15) */
903
#else /* not __GLIBC__ */
904
int numplugins = scandir(plugindir != NULL ? plugindir : PDIR,
905
&direntries, good_name, alphasort);
906
#endif /* not __GLIBC__ */
895
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if(numplugins == -1){
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908
error(0, errno, "Could not scan plugin dir");
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direntries = NULL;
913
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ret = (int)TEMP_FAILURE_RETRY(fstat(plugin_fd, &st));
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if(ret == -1){
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error(0, errno, "stat");
916
close(plugin_fd);
928
TEMP_FAILURE_RETRY(close(plugin_fd));
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free(direntries[i]);
918
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continue;
919
931
}
928
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plugindir != NULL ? plugindir : PDIR,
929
941
direntries[i]->d_name);
930
942
}
931
close(plugin_fd);
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TEMP_FAILURE_RETRY(close(plugin_fd));
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free(direntries[i]);
933
945
continue;
934
946
}
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plugin *p = getplugin(direntries[i]->d_name);
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if(p == NULL){
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error(0, errno, "getplugin");
939
close(plugin_fd);
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TEMP_FAILURE_RETRY(close(plugin_fd));
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free(direntries[i]);
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continue;
942
954
}
945
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fprintf(stderr, "Ignoring disabled plugin \"%s\"\n",
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direntries[i]->d_name);
947
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}
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close(plugin_fd);
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TEMP_FAILURE_RETRY(close(plugin_fd));
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free(direntries[i]);
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continue;
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}
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if(pipefd[0] >= FD_SETSIZE){
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fprintf(stderr, "pipe()[0] (%d) >= FD_SETSIZE (%d)", pipefd[0],
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FD_SETSIZE);
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close(pipefd[0]);
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close(pipefd[1]);
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TEMP_FAILURE_RETRY(close(pipefd[0]));
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TEMP_FAILURE_RETRY(close(pipefd[1]));
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exitstatus = EX_OSERR;
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1009
free(direntries[i]);
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goto fallback;
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ret = set_cloexec_flag(pipefd[0]);
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if(ret < 0){
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error(0, errno, "set_cloexec_flag");
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close(pipefd[0]);
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close(pipefd[1]);
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TEMP_FAILURE_RETRY(close(pipefd[0]));
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TEMP_FAILURE_RETRY(close(pipefd[1]));
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exitstatus = EX_OSERR;
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1020
free(direntries[i]);
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goto fallback;
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ret = set_cloexec_flag(pipefd[1]);
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1024
if(ret < 0){
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1025
error(0, errno, "set_cloexec_flag");
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close(pipefd[0]);
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close(pipefd[1]);
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TEMP_FAILURE_RETRY(close(pipefd[0]));
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TEMP_FAILURE_RETRY(close(pipefd[1]));
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exitstatus = EX_OSERR;
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free(direntries[i]);
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goto fallback;
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error(0, errno, "fork");
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TEMP_FAILURE_RETRY(sigprocmask(SIG_UNBLOCK,
1039
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&sigchld_action.sa_mask, NULL));
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close(pipefd[0]);
1041
close(pipefd[1]);
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TEMP_FAILURE_RETRY(close(pipefd[0]));
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TEMP_FAILURE_RETRY(close(pipefd[1]));
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exitstatus = EX_OSERR;
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free(direntries[i]);
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goto fallback;
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/* no return */
1073
1085
}
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/* Parent process */
1075
close(pipefd[1]); /* Close unused write end of pipe */
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close(plugin_fd);
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TEMP_FAILURE_RETRY(close(pipefd[1])); /* Close unused write end of
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pipe */
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TEMP_FAILURE_RETRY(close(plugin_fd));
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plugin *new_plugin = getplugin(direntries[i]->d_name);
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if(new_plugin == NULL){
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error(0, errno, "getplugin");
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1116
goto fallback;
1104
1117
}
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FD_SET(new_plugin->fd, &rfds_all);
1119
#if defined (__GNUC__) and defined (__GLIBC__)
1120
#if not __GLIBC_PREREQ(2, 16)
1121
#pragma GCC diagnostic push
1122
#pragma GCC diagnostic ignored "-Wsign-conversion"
1123
#endif
1124
#endif
1125
FD_SET(new_plugin->fd, &rfds_all); /* Spurious warning from
1126
-Wconversion in GNU libc
1127
before 2.16 */
1128
#if defined (__GNUC__) and defined (__GLIBC__)
1129
#if not __GLIBC_PREREQ(2, 16)
1130
#pragma GCC diagnostic pop
1131
#endif
1132
#endif
1107
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1134
if(maxfd < new_plugin->fd){
1109
1135
maxfd = new_plugin->fd;
1112
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free(direntries);
1114
1140
direntries = NULL;
1115
close(dir_fd);
1141
TEMP_FAILURE_RETRY(close(dir_fd));
1116
1142
dir_fd = -1;
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1143
free_plugin(getplugin(NULL));
1118
1144
1158
1184
(intmax_t) (proc->pid),
1159
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WTERMSIG(proc->status),
1160
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strsignal(WTERMSIG(proc->status)));
1187
} else if(WCOREDUMP(proc->status)){
1188
fprintf(stderr, "Plugin %s [%" PRIdMAX "] dumped"
1189
" core\n", proc->name, (intmax_t) (proc->pid));
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1190
}
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}
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/* Remove the plugin */
1165
FD_CLR(proc->fd, &rfds_all);
1194
#if defined (__GNUC__) and defined (__GLIBC__)
1195
#if not __GLIBC_PREREQ(2, 16)
1196
#pragma GCC diagnostic push
1197
#pragma GCC diagnostic ignored "-Wsign-conversion"
1198
#endif
1199
#endif
1200
FD_CLR(proc->fd, &rfds_all); /* Spurious warning from
1201
-Wconversion in GNU libc
1202
before 2.16 */
1203
#if defined (__GNUC__) and defined (__GLIBC__)
1204
#if not __GLIBC_PREREQ(2, 16)
1205
#pragma GCC diagnostic pop
1206
#endif
1207
#endif
1166
1208
1167
1209
/* Block signal while modifying process_list */
1168
1210
ret = (int)TEMP_FAILURE_RETRY(sigprocmask
1208
1250
}
1209
1251
1210
1252
/* This process has not completed. Does it have any output? */
1211
if(proc->eof or not FD_ISSET(proc->fd, &rfds)){
1253
#if defined (__GNUC__) and defined (__GLIBC__)
1254
#if not __GLIBC_PREREQ(2, 16)
1255
#pragma GCC diagnostic push
1256
#pragma GCC diagnostic ignored "-Wsign-conversion"
1257
#endif
1258
#endif
1259
if(proc->eof or not FD_ISSET(proc->fd, &rfds)){ /* Spurious
1260
warning from
1261
-Wconversion
1262
in GNU libc
1263
before
1264
2.16 */
1265
#if defined (__GNUC__) and defined (__GLIBC__)
1266
#if not __GLIBC_PREREQ(2, 16)
1267
#pragma GCC diagnostic pop
1268
#endif
1269
#endif
1212
1270
/* This process had nothing to say at this time */
1213
1271
proc = proc->next;
1214
1272
continue;
1284
1342
free(direntries);
1285
1343
1286
1344
if(dir_fd != -1){
1287
close(dir_fd);
1345
TEMP_FAILURE_RETRY(close(dir_fd));
1288
1346
}
1289
1347
1290
1348
/* Kill the processes */
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0