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Use pgrp of pty fd not pid of immediate child when recovering current

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working directory (like current process). From Marcel Partap.
This commit is contained in:
Nicholas Marriott
2012-09-24 13:05:10 +00:00
parent eb0ad181e9
commit 42272dfbd5
4 changed files with 8 additions and 6 deletions
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8
procname.c
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@ -36,7 +36,7 @@
struct kinfo_proc *cmp_procs(struct kinfo_proc *, struct kinfo_proc *);
char *get_proc_name(int, char *);
char *get_proc_cwd(pid_t);
char *get_proc_cwd(int);
struct kinfo_proc *
cmp_procs(struct kinfo_proc *p1, struct kinfo_proc *p2)
@ -133,12 +133,14 @@ error:
}
char*
get_proc_cwd(pid_t pid)
get_proc_cwd(int fd)
{
int name[] = { CTL_KERN, KERN_PROC_CWD, (int)pid };
int name[] = { CTL_KERN, KERN_PROC_CWD, 0 };
static char path[MAXPATHLEN];
size_t pathlen = sizeof path;
if ((name[2] = tcgetpgrp(fd)) == -1)
return (NULL);
if (sysctl(name, 3, path, &pathlen, NULL, 0) != 0)
return (NULL);
return (path);