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  • Committer: Teddy Hogeborn
  • Date: 2016-03-13 22:46:30 UTC
  • mfrom: (340 release)
  • mto: (237.7.594 trunk)
  • mto: This revision was merged to the branch mainline in revision 341.
  • Revision ID: teddy@recompile.se-20160313224630-nz8ng3zl82elmk1h
Merge from release branch

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Lines of Context:
plugin-runner.c
2
2
/*
3
3
 * Mandos plugin runner - Run Mandos plugins
4
4
 *
5
 
 * Copyright © 2008-2014 Teddy Hogeborn
6
 
 * Copyright © 2008-2014 Björn Påhlsson
 
5
 * Copyright © 2008-2016 Teddy Hogeborn
 
6
 * Copyright © 2008-2016 Björn Påhlsson
7
7
 * 
8
8
 * This program is free software: you can redistribute it and/or
9
9
 * modify it under the terms of the GNU General Public License as
701
701
        custom_argc += 1;
702
702
        {
703
703
          char **new_argv = realloc(custom_argv, sizeof(char *)
704
 
                                    * ((unsigned int)
705
 
                                       custom_argc + 1));
 
704
                                    * ((size_t)custom_argc + 1));
706
705
          if(new_argv == NULL){
707
706
            error(0, errno, "realloc");
708
707
            exitstatus = EX_OSERR;
827
826
          }
828
827
        }
829
828
      }
830
 
      TEMP_FAILURE_RETRY(close(plugindir_fd));
 
829
      close(plugindir_fd);
831
830
    }
832
831
  }
833
832
  
892
891
    return 1;
893
892
  }
894
893
  
895
 
#ifdef __GLIBC__
896
 
#if __GLIBC_PREREQ(2, 15)
897
894
  int numplugins = scandirat(dir_fd, ".", &direntries, good_name,
898
895
                             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__ */
907
896
  if(numplugins == -1){
908
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    error(0, errno, "Could not scan plugin dir");
909
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    direntries = NULL;
925
914
    ret = (int)TEMP_FAILURE_RETRY(fstat(plugin_fd, &st));
926
915
    if(ret == -1){
927
916
      error(0, errno, "stat");
928
 
      TEMP_FAILURE_RETRY(close(plugin_fd));
 
917
      close(plugin_fd);
929
918
      free(direntries[i]);
930
919
      continue;
931
920
    }
940
929
                plugindir != NULL ? plugindir : PDIR,
941
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                direntries[i]->d_name);
942
931
      }
943
 
      TEMP_FAILURE_RETRY(close(plugin_fd));
 
932
      close(plugin_fd);
944
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      free(direntries[i]);
945
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      continue;
946
935
    }
948
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    plugin *p = getplugin(direntries[i]->d_name);
949
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    if(p == NULL){
950
939
      error(0, errno, "getplugin");
951
 
      TEMP_FAILURE_RETRY(close(plugin_fd));
 
940
      close(plugin_fd);
952
941
      free(direntries[i]);
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942
      continue;
954
943
    }
957
946
        fprintf(stderr, "Ignoring disabled plugin \"%s\"\n",
958
947
                direntries[i]->d_name);
959
948
      }
960
 
      TEMP_FAILURE_RETRY(close(plugin_fd));
 
949
      close(plugin_fd);
961
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      free(direntries[i]);
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      continue;
963
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    }
1003
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    if(pipefd[0] >= FD_SETSIZE){
1004
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      fprintf(stderr, "pipe()[0] (%d) >= FD_SETSIZE (%d)", pipefd[0],
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              FD_SETSIZE);
1006
 
      TEMP_FAILURE_RETRY(close(pipefd[0]));
1007
 
      TEMP_FAILURE_RETRY(close(pipefd[1]));
 
995
      close(pipefd[0]);
 
996
      close(pipefd[1]);
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      exitstatus = EX_OSERR;
1009
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      free(direntries[i]);
1010
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      goto fallback;
1014
1003
    ret = set_cloexec_flag(pipefd[0]);
1015
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    if(ret < 0){
1016
1005
      error(0, errno, "set_cloexec_flag");
1017
 
      TEMP_FAILURE_RETRY(close(pipefd[0]));
1018
 
      TEMP_FAILURE_RETRY(close(pipefd[1]));
 
1006
      close(pipefd[0]);
 
1007
      close(pipefd[1]);
1019
1008
      exitstatus = EX_OSERR;
1020
1009
      free(direntries[i]);
1021
1010
      goto fallback;
1023
1012
    ret = set_cloexec_flag(pipefd[1]);
1024
1013
    if(ret < 0){
1025
1014
      error(0, errno, "set_cloexec_flag");
1026
 
      TEMP_FAILURE_RETRY(close(pipefd[0]));
1027
 
      TEMP_FAILURE_RETRY(close(pipefd[1]));
 
1015
      close(pipefd[0]);
 
1016
      close(pipefd[1]);
1028
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      exitstatus = EX_OSERR;
1029
1018
      free(direntries[i]);
1030
1019
      goto fallback;
1049
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      error(0, errno, "fork");
1050
1039
      TEMP_FAILURE_RETRY(sigprocmask(SIG_UNBLOCK,
1051
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                                     &sigchld_action.sa_mask, NULL));
1052
 
      TEMP_FAILURE_RETRY(close(pipefd[0]));
1053
 
      TEMP_FAILURE_RETRY(close(pipefd[1]));
 
1041
      close(pipefd[0]);
 
1042
      close(pipefd[1]);
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      exitstatus = EX_OSERR;
1055
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      free(direntries[i]);
1056
1045
      goto fallback;
1084
1073
      /* no return */
1085
1074
    }
1086
1075
    /* Parent process */
1087
 
    TEMP_FAILURE_RETRY(close(pipefd[1])); /* Close unused write end of
1088
 
                                             pipe */
1089
 
    TEMP_FAILURE_RETRY(close(plugin_fd));
 
1076
    close(pipefd[1]);           /* Close unused write end of pipe */
 
1077
    close(plugin_fd);
1090
1078
    plugin *new_plugin = getplugin(direntries[i]->d_name);
1091
1079
    if(new_plugin == NULL){
1092
1080
      error(0, errno, "getplugin");
1116
1104
      goto fallback;
1117
1105
    }
1118
1106
    
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
    FD_SET(new_plugin->fd, &rfds_all);
1133
1108
    
1134
1109
    if(maxfd < new_plugin->fd){
1135
1110
      maxfd = new_plugin->fd;
1138
1113
  
1139
1114
  free(direntries);
1140
1115
  direntries = NULL;
1141
 
  TEMP_FAILURE_RETRY(close(dir_fd));
 
1116
  close(dir_fd);
1142
1117
  dir_fd = -1;
1143
1118
  free_plugin(getplugin(NULL));
1144
1119
  
1191
1166
          }
1192
1167
          
1193
1168
          /* Remove the plugin */
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
 
1169
          FD_CLR(proc->fd, &rfds_all);
1208
1170
          
1209
1171
          /* Block signal while modifying process_list */
1210
1172
          ret = (int)TEMP_FAILURE_RETRY(sigprocmask
1250
1212
      }
1251
1213
      
1252
1214
      /* This process has not completed.  Does it have any output? */
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
 
1215
      if(proc->eof or not FD_ISSET(proc->fd, &rfds)){
1270
1216
        /* This process had nothing to say at this time */
1271
1217
        proc = proc->next;
1272
1218
        continue;
1342
1288
  free(direntries);
1343
1289
  
1344
1290
  if(dir_fd != -1){
1345
 
    TEMP_FAILURE_RETRY(close(dir_fd));
 
1291
    close(dir_fd);
1346
1292
  }
1347
1293
  
1348
1294
  /* Kill the processes */