utilities » spawn-fcgi

Running spawn-fcgi and specifying the uid/gid as names instead of the uid/gid values for some reason spawn-fcgi has started crashing for one particular user. If I change the name to the uid/gid values spawn-fcgi executes properly and forks off the processes as expected. This used to work fine and I am not quite sure if 1.6.x introduced this over spawn-fcgi that came with lighttpd 1.4.22 or if could be something else going on. This works for a handful of other FastCGI apps with the identical configuration but different uid/gid combination's.

.e.g.

#USERID=5thscalecanada
#GROUPID=5thscalecanada
USERID=1009
GROUPID=1009

...

env - $E $SPAWNFCGI -a $FCGI_WEB_SERVER_ADDRS -c /var/www -p $FCGIPORT -f $FCGIPROGRAM -u $USERID -g $GROUPID -C $PHP_FCGI_CHILDREN

Compiling spawn-fcgi with debug symbols shows the following trace starting up spawn-fcgi with this userid/groupid.

1. /var/www/fastcgi/startup/webmail.5thscale-startup.sh
   Segmentation fault (core dumped)
2. gdb spawn-fcgi spawn-fcgi.core
   GNU gdb 6.3
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   GDB is free software, covered by the GNU General Public License, and you are
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   This GDB was configured as "amd64-unknown-openbsd4.5"...
   Core was generated by `spawn-fcgi'.
   Program terminated with signal 11, Segmentation fault.
   Reading symbols from /usr/lib/libc.so.50.1...done.
   Loaded symbols for /usr/lib/libc.so.50.1
   Reading symbols from /usr/libexec/ld.so...done.
   Loaded symbols for /usr/libexec/ld.so
   #0 0x0000000000402248 in find_user_group (user=0x7f7ffffc268d "5thscalecanada", group=0x7f7ffffc269f "5thscalecanada", uid=0x7f7ffffc1f8c,
   gid=0x7f7ffffc1f84, username=0x7f7ffffc1f78) at spawn-fcgi.c:332
   332 if (username) username = my_pwd->pw_name;
   (gdb) bt full
   #0 0x0000000000402248 in find_user_group (user=0x7f7ffffc268d "5thscalecanada", group=0x7f7ffffc269f "5thscalecanada", uid=0x7f7ffffc1f8c,
   gid=0x7f7ffffc1f84, username=0x7f7ffffc1f78) at spawn-fcgi.c:332
   my_uid = 5
   my_gid = 0
   my_pwd = (struct passwd *) 0x0
   my_grp = (struct group *) 0x0
   #1 0x0000000000402a42 in main (argc=15, argv=0x7f7ffffc2180) at spawn-fcgi.c:523
   real_username = 0x0
   uid = 0
   sockuid = 244327664
   gid = 0
   sockgid = 4294967295
   fcgi_app = 0x7f7ffffc266f "/usr/local/bin/php-fastcgi"
   changeroot = 0x7f7ffffc265a "/var/www"
   username = 0x7f7ffffc268d "5thscalecanada"
   groupname = 0x7f7ffffc269f "5thscalecanada"
   unixsocket = 0x0
   pid_file = 0x0
   sockusername = 0x0
   sockgroupname = 0x0
   fcgi_dir = 0x0
   addr = 0x7f7ffffc264d "127.0.0.1"
   fcgi_app_argv = (char *) 0x0
   port = 64003
   sockmode = -1
   child_count = 2
   fork_count = 1
   i_am_root = 1
   o = -1
   pid_fd = -1
   nofork = 0
   sockbeforechroot = 0
   un = {sun_len = 15 '\017', sun_family = 0 '\0',
   sun_path = "\000\000\000\000\000\000Q#\220\016\002\000\000\000\002\002\000\000\000\000\000\000(\220\213\n\002\000\000\000Ù+¡\003\002\000\000\000ªM\234\003\002\000\000\0000&üÿ\177\177\000\0008!üÿ\177\177\000\000\200!üÿ\177\177\000\000\017", '\0' <repeats 15 times>, "Z\201ÿÿ\177\177\000\000M,¡\003\002\000\000\000@,"}
   fcgi_fd = -1