int
fixmount_check_mount(char *host, struct in_addr hostaddr, char *path)
{
FILE *mtab;
mntent_t *ment;
int found = 0;
/* scan mtab for path */
if (!(mtab = setmntent(_PATH_MTAB, "r"))) {
perror(_PATH_MTAB);
exit(1);
}
/*
* setmntent() doesn't do locking in read-only mode. Too bad -- it seems to
* rely on mount() and friends to do atomic updates by renaming the file.
* Well, our patched amd rewrites mtab in place to avoid NFS lossage, so
* better do the locking ourselves.
*/
#ifdef HAVE_FLOCK
if (flock(fileno(mtab), LOCK_SH) < 0) {
#else /* not HAVE_FLOCK */
if (lockf(fileno(mtab), F_LOCK, 0) < 0) {
#endif /* not HAVE_FLOCK */
perror(_PATH_MTAB);
exit(1);
}
while (!found && (ment = getmntent(mtab))) {
char *colon;
if ((colon = strchr(ment->mnt_fsname, ':'))) {
*colon = '\0';
if ((STREQ(colon + 1, path) ||
STREQ(ment->mnt_dir, path)) &&
is_same_host(ment->mnt_fsname, host, hostaddr))
found = 1;
}
}
(void) endmntent(mtab);
if (!found) {
char *swap;
/* swap files never show up in mtab, only root fs */
if ((swap = strstr(path, "swap"))) {
strncpy(swap, "root", 4); /* this should NOT use xstrlcpy */
found = fixmount_check_mount(host, hostaddr, path);
strncpy(swap, "swap", 4); /* this should NOT use xstrlcpy */
}
}
return found;
}
int
fixmount_check_mount(char *host, struct in_addr hostaddr, char *path)
{
FILE *mtab;
struct mnttab ment;
int err = 0;
int found = 0;
/* scan mtab for path */
if (!(mtab = fopen(MNTTAB, "r"))) {
perror(MNTTAB);
exit(1);
}
while (!found && (err = getmntent(mtab, &ment)) == 0) {
char *colon;
if ((colon = strchr(ment.mnt_fsname, ':'))) {
*colon = '\0';
if ((STREQ(colon + 1, path) ||
STREQ(ment.mnt_dir, path)) &&
is_same_host(ment.mnt_fsname, host, hostaddr))
found = 1;
}
}
if (err > 0) {
fprintf(stderr, "getmntent: %s: %s\n", MNTTAB,
err == MNT_TOOLONG ? "entry exceeds MNT_LINE_MAX" :
err == MNT_TOOMANY ? "too many fields in line" :
err == MNT_TOOFEW ? "too few fields in line" :
"unknown error code");
exit(1);
}
(void) fclose(mtab);
/* XXX: Is this still valid in SunOS 5.x ? */
if (!found) {
char *swap;
/* swap files never show up in mtab, only root fs */
if ((swap = strstr(path, "swap"))) {
strncpy(swap, "root", 4); /* this should NOT use xstrlcpy */
found = fixmount_check_mount(host, hostaddr, path);
strncpy(swap, "swap", 4); /* this should NOT use xstrlcpy */
}
}
return found;
}
