setproctitle.c

#include <stdio.h>
#include <stdlib.h>

#include <sys/types.h>
#include <unistd.h>

int main(void)
{
  setproctitle("%s", "test");
  return 0;
}

valgrind.log

==28901== Invalid read of size 4
==28901==    at 0x9DA01: setproctitle (in /lib/libc.so.7)
==28901==    by 0x8048484: main (setproctitle.c:9)
==28901==  Address 0xbfbffff0 is not stack'd, malloc'd or (recently) free'd
==28901== 
==28901== Invalid read of size 4
==28901==    at 0x9DA36: setproctitle (in /lib/libc.so.7)
==28901==    by 0x8048484: main (setproctitle.c:9)
==28901==  Address 0xbfbffff4 is not stack'd, malloc'd or (recently) free'd
==28901== 
==28901== Invalid read of size 4
==28901==    at 0x9DA49: setproctitle (in /lib/libc.so.7)
==28901==    by 0x8048484: main (setproctitle.c:9)
==28901==  Address 0xbfbfe7d0 is not stack'd, malloc'd or (recently) free'd
==28901== 
==28901== Invalid read of size 1
==28901==    at 0x5CF48: strlen (in /usr/local/lib/valgrind/vgpreload_memcheck-x86-freebsd.so)
==28901==    by 0x146585: ??? (in /lib/libc.so.7)
==28901==    by 0x1412FB: snprintf (in /lib/libc.so.7)
==28901==    by 0x9DAD1: setproctitle (in /lib/libc.so.7)
==28901==    by 0x8048484: main (setproctitle.c:9)
==28901==  Address 0xbfbfe904 is not stack'd, malloc'd or (recently) free'd
==28901== 
==28901== Invalid read of size 1
==28901==    at 0x5CF53: strlen (in /usr/local/lib/valgrind/vgpreload_memcheck-x86-freebsd.so)
==28901==    by 0x146585: ??? (in /lib/libc.so.7)
==28901==    by 0x1412FB: snprintf (in /lib/libc.so.7)
==28901==    by 0x9DAD1: setproctitle (in /lib/libc.so.7)
==28901==    by 0x8048484: main (setproctitle.c:9)
==28901==  Address 0xbfbfe905 is not stack'd, malloc'd or (recently) free'd
==28901== 
==28901== Invalid read of size 4
==28901==    at 0x5E9E6: memcpy (in /usr/local/lib/valgrind/vgpreload_memcheck-x86-freebsd.so)
==28901==    by 0x150C54: ??? (in /lib/libc.so.7)
==28901==    by 0x143EFE: ??? (in /lib/libc.so.7)
==28901==    by 0x14559C: ??? (in /lib/libc.so.7)
==28901==    by 0x1412FB: snprintf (in /lib/libc.so.7)
==28901==    by 0x9DAD1: setproctitle (in /lib/libc.so.7)
==28901==    by 0x8048484: main (setproctitle.c:9)
==28901==  Address 0xbfbfe904 is not stack'd, malloc'd or (recently) free'd
==28901== 
==28901== Invalid read of size 4
==28901==    at 0x5E9F6: memcpy (in /usr/local/lib/valgrind/vgpreload_memcheck-x86-freebsd.so)
==28901==    by 0x150C54: ??? (in /lib/libc.so.7)
==28901==    by 0x143EFE: ??? (in /lib/libc.so.7)
==28901==    by 0x14559C: ??? (in /lib/libc.so.7)
==28901==    by 0x1412FB: snprintf (in /lib/libc.so.7)
==28901==    by 0x9DAD1: setproctitle (in /lib/libc.so.7)
==28901==    by 0x8048484: main (setproctitle.c:9)
==28901==  Address 0xbfbfe908 is not stack'd, malloc'd or (recently) free'd
==28901== 
==28901== Invalid read of size 4
==28901==    at 0x9DAE5: setproctitle (in /lib/libc.so.7)
==28901==    by 0x8048484: main (setproctitle.c:9)
==28901==  Address 0xbfbfe7d0 is not stack'd, malloc'd or (recently) free'd
==28901== 
==28901== Invalid read of size 1
==28901==    at 0x5CF48: strlen (in /usr/local/lib/valgrind/vgpreload_memcheck-x86-freebsd.so)
==28901==    by 0x9DAEF: setproctitle (in /lib/libc.so.7)
==28901==    by 0x8048484: main (setproctitle.c:9)
==28901==  Address 0xbfbfe904 is not stack'd, malloc'd or (recently) free'd
==28901== 
==28901== Invalid read of size 1
==28901==    at 0x5CF53: strlen (in /usr/local/lib/valgrind/vgpreload_memcheck-x86-freebsd.so)
==28901==    by 0x9DAEF: setproctitle (in /lib/libc.so.7)
==28901==    by 0x8048484: main (setproctitle.c:9)
==28901==  Address 0xbfbfe905 is not stack'd, malloc'd or (recently) free'd
==28901== 
==28901== Invalid read of size 4
==28901==    at 0x9DA8C: setproctitle (in /lib/libc.so.7)
==28901==    by 0x8048484: main (setproctitle.c:9)
==28901==  Address 0xbfbfe7d4 is not stack'd, malloc'd or (recently) free'd
==28901== 
==28901== Invalid read of size 1
==28901==    at 0x5EA05: memcpy (in /usr/local/lib/valgrind/vgpreload_memcheck-x86-freebsd.so)
==28901==    by 0x150C54: ??? (in /lib/libc.so.7)
==28901==    by 0x143EFE: ??? (in /lib/libc.so.7)
==28901==    by 0x14559C: ??? (in /lib/libc.so.7)
==28901==    by 0x1412FB: snprintf (in /lib/libc.so.7)
==28901==    by 0x9DAD1: setproctitle (in /lib/libc.so.7)
==28901==    by 0x8048484: main (setproctitle.c:9)
==28901==  Address 0xbfbfe90d is not stack'd, malloc'd or (recently) free'd
==28901== 
==28901== Invalid read of size 2
==28901==    at 0x5E900: memcpy (in /usr/local/lib/valgrind/vgpreload_memcheck-x86-freebsd.so)
==28901==    by 0x150C54: ??? (in /lib/libc.so.7)
==28901==    by 0x143EFE: ??? (in /lib/libc.so.7)
==28901==    by 0x14559C: ??? (in /lib/libc.so.7)
==28901==    by 0x1412FB: snprintf (in /lib/libc.so.7)
==28901==    by 0x9DAD1: setproctitle (in /lib/libc.so.7)
==28901==    by 0x8048484: main (setproctitle.c:9)
==28901==  Address 0xbfbfe924 is not stack'd, malloc'd or (recently) free'd
==28901== 
==28901== Invalid read of size 1
==28901==    at 0x5E8B5: memcpy (in /usr/local/lib/valgrind/vgpreload_memcheck-x86-freebsd.so)
==28901==    by 0x150C54: ??? (in /lib/libc.so.7)
==28901==    by 0x143EFE: ??? (in /lib/libc.so.7)
==28901==    by 0x14559C: ??? (in /lib/libc.so.7)
==28901==    by 0x1412FB: snprintf (in /lib/libc.so.7)
==28901==    by 0x9DAD1: setproctitle (in /lib/libc.so.7)
==28901==    by 0x8048484: main (setproctitle.c:9)
==28901==  Address 0xbfbfe926 is not stack'd, malloc'd or (recently) free'd
==28901== 
==28901== Invalid write of size 4
==28901==    at 0x9DA17: setproctitle (in /lib/libc.so.7)
==28901==    by 0x8048484: main (setproctitle.c:9)
==28901==  Address 0xbfbffff4 is not stack'd, malloc'd or (recently) free'd
==28901== 
==28901== Invalid write of size 4
==28901==    at 0x9DA1D: setproctitle (in /lib/libc.so.7)
==28901==    by 0x8048484: main (setproctitle.c:9)
==28901==  Address 0xbfbffff0 is not stack'd, malloc'd or (recently) free'd
==28901==