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Use KERN_PROC_CWD if supported, from Tiwei Bie.

pull/1/head
Nicholas Marriott 2014-11-06 14:00:56 +00:00
parent 6ca8c58462
commit 218b181985
1 changed files with 34 additions and 2 deletions
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36
osdep-freebsd.c
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@ -132,8 +132,8 @@ error:
return (NULL);
}
char *
osdep_get_cwd(int fd)
static char *
osdep_get_cwd_fallback(int fd)
{
static char wd[PATH_MAX];
struct kinfo_file *info = NULL;
@ -158,6 +158,38 @@ osdep_get_cwd(int fd)
return (NULL);
}
#ifdef KERN_PROC_CWD
char *
osdep_get_cwd(int fd)
{
static struct kinfo_file info;
static int fallback;
int name[] = { CTL_KERN, KERN_PROC, KERN_PROC_CWD, 0 };
size_t len = sizeof info;
if (fallback)
return (osdep_get_cwd_fallback(fd));
if ((name[3] = tcgetpgrp(fd)) == -1)
return (NULL);
if (sysctl(name, 4, &info, &len, NULL, 0) == -1) {
if (errno == ENOENT) {
fallback = 1;
return (osdep_get_cwd_fallback(fd));
}
return (NULL);
}
return (info.kf_path);
}
#else /* !KERN_PROC_CWD */
char *
osdep_get_cwd(int fd)
{
return (osdep_get_cwd_fallback(fd));
}
#endif /* KERN_PROC_CWD */
struct event_base *
osdep_event_init(void)
{