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Adjust OpenBSD-specific code to match OpenBSD-current

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Also fix null pointer dereference by NOT calling strlen on a possible
null pointer.
This commit is contained in:
Tobias Stoeckmann
2012-04-29 13:44:21 +02:00
committed by Carlos R. Mafra
parent e83eeb15cc
commit 1bcfb89cd1
1 changed files with 4 additions and 4 deletions
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8
src/osdep_bsd.c
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@@ -106,11 +106,11 @@ Bool GetCommandForPid(int pid, char ***argv, int *argc)
procs = 0;
/* the process we are interested in */
if ((kp = kvm_getprocs(kd, KERN_PROC_PID, pid, &procs)) == NULL || procs == 0)
if ((kp = kvm_getprocs(kd, KERN_PROC_PID, pid, sizeof(*kp), &procs)) == NULL || procs == 0)
/* if kvm_getprocs() bombs out or does not find the process */
return False;
/* get it's argv */
/* get its argv */
if ((nargv = kvm_getargv(kd, kp, 0)) == NULL)
return False;
@@ -120,11 +120,11 @@ Bool GetCommandForPid(int pid, char ***argv, int *argc)
/*
* must have this much free space in `args' in order for the current
* iteration not to overflow it: we are at `count', and will append
* the next ((*argc)+1) arg and a null (+1)
* the next (*argc) arg and a nul (+1)
* technically, overflow (or truncation, which isn't handled) can not
* happen (should not, at least).
*/
#define ARGSPACE ( count + strlen(nargv[ (*argc) + 1 ] ) + 1 )
#define ARGSPACE ( count + strlen(nargv[ (*argc) ] ) + 1 )
while (nargv[*argc] && ARGSPACE < argmax ) {
memcpy(args + count, nargv[*argc], strlen(nargv[*argc]));
count += strlen(nargv[*argc]) + 1;