diff options
Diffstat (limited to 'shlibs/mount/src/optstr.c')
| -rw-r--r-- | shlibs/mount/src/optstr.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/shlibs/mount/src/optstr.c b/shlibs/mount/src/optstr.c index c2581be63..3308a1a0e 100644 --- a/shlibs/mount/src/optstr.c +++ b/shlibs/mount/src/optstr.c @@ -410,6 +410,7 @@ int mnt_split_optstr(const char *optstr, char **user, char **vfs, char **fs, /** * mnt_optstr_get_mountflags: * @optstr: string with comma separated list of options + * @flags: returns mount flags * * The mountflags are IDs from all MNT_MFLAG options from MNT_LINUX_MAP options * map. See "struct mnt_optmap". For more details about mountflags see @@ -421,18 +422,19 @@ int mnt_split_optstr(const char *optstr, char **user, char **vfs, char **fs, * * "bind,noexec,foo,bar" --returns-> MS_BIND|MS_NOEXEC * - * Returns: mount flags or 0. + * Note that @flags are not zeroized by this function. + * + * Returns: 0 on success or -1 in case of error */ -int mnt_optstr_get_mountflags(const char *optstr) +int mnt_optstr_get_mountflags(const char *optstr, unsigned long *flags) { - int flags = 0; struct mnt_optmap const *maps[1]; char *name, *str = (char *) optstr; size_t namesz = 0; assert(optstr); - if (!optstr) + if (!optstr || !flags) return -1; maps[0] = mnt_get_builtin_optmap(MNT_LINUX_MAP); @@ -445,15 +447,15 @@ int mnt_optstr_get_mountflags(const char *optstr) if (!(ent->mask & MNT_MFLAG)) continue; if (ent->mask & MNT_INVERT) - flags &= ~ent->id; + *flags &= ~ent->id; else - flags |= ent->id; + *flags |= ent->id; } } DBG(DEBUG_OPTIONS, fprintf(stderr, - "libmount: optstr '%s': mountflags 0x%08x\n", optstr, flags)); - return flags; + "libmount: optstr '%s': mountflags 0x%08lx\n", optstr, *flags)); + return 0; } #ifdef TEST_PROGRAM |