There's a bug in the new version of the cgi-wrapper.c program, which the following patch fixes, and more.

The bug appears on error reporting, when the invoking process UID or GID doesn't match the configured setting - then a "%s" in the error report string causes a segfault when it's mapped onto the LEGAL_PARENT_UID or _GID.

While the fix is obvious (change the two occurrences of "%s" to "%d"), the patches do a bit more than that. They also change the type of the main() routine to int, since gcc seems to expect that. (When the type was void gcc complained about it not being an int, and i figure gcc knows what it's doing. I don't, when it comes to C. (...Caveat emptor...-))

Ken

Index: cgi-wrapper.c

RCS file: /projects/cvsroot/mailman/src/cgi-wrapper.c,v retrieving revision 1.1 retrieving revision 1.2 diff -c -r1.1 -r1.2 *** cgi-wrapper.c 1998/04/03 00:12:57 1.1 --- cgi-wrapper.c 1998/04/28 22:36:07 1.2

*** 53,69 **** /* compare to our parent's uid */ if(LEGAL_PARENT_UID != getuid()) { ! err("Attempt to exec cgi %s made by uid %d", LEGAL_PARENT_UID, getuid()); } if(LEGAL_PARENT_GID != getgid()) { ! err("Attempt to exec cgi %s made by gid %d", LEGAL_PARENT_GID, getgid()); } }

! void main(int argc, char **argv, char **env) { int i;

--- 53,69 ---- /* compare to our parent's uid */ if(LEGAL_PARENT_UID != getuid()) { ! err("Attempt to exec cgi %d made by uid %d", LEGAL_PARENT_UID, getuid()); } if(LEGAL_PARENT_GID != getgid()) { ! err("Attempt to exec cgi %d made by gid %d", LEGAL_PARENT_GID, getgid()); } }

! int main(int argc, char **argv, char **env) { int i;

Index: mail-wrapper.c

RCS file: /projects/cvsroot/mailman/src/mail-wrapper.c,v retrieving revision 1.5 retrieving revision 1.6 diff -c -r1.5 -r1.6 *** mail-wrapper.c 1998/03/30 16:28:22 1.5 --- mail-wrapper.c 1998/04/28 22:36:29 1.6

*** 107,113 **** return 0; }

! void main(int argc, char **argv) { char *command; int i;

--- 107,113 ---- return 0; }

! int main(int argc, char **argv) { char *command; int i;

Index: alias-wrapper.c

RCS file: /projects/cvsroot/mailman/src/alias-wrapper.c,v retrieving revision 1.3 retrieving revision 1.5 diff -c -r1.3 -r1.5 *** alias-wrapper.c 1998/03/05 23:46:45 1.3 --- alias-wrapper.c 1998/04/28 22:38:18 1.5

*** 60,66 **** } }

! void main(int argc, char **argv, char **env) { char *command; int i; --- 60,66 ---- } }

! int main(int argc, char **argv, char **env) { char *command; int i;

*** 78,83 **** --- 78,85 ---- else { printf("Illegal caller!\n");

•   return 1;
  }

• return 0; }