1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <unistd.h>
   4 
   5 /*
   6 The members.c file is compiled via
   7 
   8 gcc members.c -o /usr/local/mailman/bin/members
   9 
  10 The object has permissions
  11 
  12 -r-xr-s--- 1 apache mailman 5382 Mar  3 11:57 /usr/local/mailman/bin/members
  13 
  14 If it is necessary to recompile, ownership and permissions need to be reset.
  15 
  16 chown apache:mailman /usr/local/mailman/bin/members
  17 chmod 2550 /usr/local/mailman/bin/members
  18 
  19 If your web server user is not 'apache', replace 'apache' above with whatever
  20 user name your web server runs under.
  21 
  22 The idea is this is SETGID mailman and executable by the web server. It wraps
  23 a few Mailman bin/ commands so that they can be executed by php scripts (or
  24 anyone who can execute the file). The commands it recognizes/allows are in the
  25 legals[] array in the source - currently just find_member, list_members
  26 
  27 Once this is done, a command such as "list_members <arguments> list_name"
  28 can be executed by apache in a php script using the php system() or exec()
  29 functions, depending on how you want to handle output, using the string
  30 
  31  "/usr/local/mailman/bin/members list_members <arguments> list_name"
  32 
  33 as the command.
  34 */
  35 
  36 main(int argc, char** argv, char** env) {
  37 
  38 char* legals[] = {
  39   "list_members",
  40   "find_member",
  41   (char*) NULL
  42 };
  43 
  44 int i;
  45 int flag = 0;
  46 char command[100];
  47 
  48     if (argc < 2) {
  49         dprintf(STDERR_FILENO,
  50                 "Usage: %s command command_args\nNo command found\n",
  51                 argv[0]);
  52         exit(1);
  53     }
  54 
  55     for ( i = 0; legals[i] != (char*) NULL; i++ ) {
  56         if (strcmp(legals[i], argv[1]) == 0) {
  57             flag = 1;
  58             break;
  59         }
  60     }
  61     if (!flag){
  62         dprintf(STDERR_FILENO,
  63                 "Usage: %s command command_args\nUnknown command: %s\n",
  64                 argv[0], argv[1]);
  65         exit(1);
  66     }
  67     sprintf(command, "/usr/local/mailman/bin/%s", argv[1]);
  68     execve(command, &argv[1], env);
  69     dprintf(STDERR_FILENO, "execve of %s failed\n", command);
  70     exit(2);
  71 }