treewide: introduce UID_INVALID (and friends) as macro for (uid_t) -1

Signed-off-by: Anthony G. Basile <blueness@gentoo.org>

1 files changed, 5 insertions, 5 deletions

diff --git a/src/shared/util.c b/src/shared/util.c
index ebf654a43e..23ecb1b462 100644
--- a/src/shared/util.c
+++ b/src/shared/util.c
@@ -260,7 +260,7 @@ int parse_uid(const char *s, uid_t* ret_uid) {
         if ((unsigned long) uid != ul)
                 return -ERANGE;
 
-        /* Some libc APIs use (uid_t) -1 as special placeholder */
+        /* Some libc APIs use UID_INVALID as special placeholder */
         if (uid == (uid_t) 0xFFFFFFFF)
                 return -ENXIO;
 
@@ -949,11 +949,11 @@ int chmod_and_chown(const char *path, mode_t mode, uid_t uid, gid_t gid) {
          * first change the access mode and only then hand out
          * ownership to avoid a window where access is too open. */
 
-        if (mode != (mode_t) -1)
+        if (mode != MODE_INVALID)
                 if (chmod(path, mode) < 0)
                         return -errno;
 
-        if (uid != (uid_t) -1 || gid != (gid_t) -1)
+        if (uid != UID_INVALID || gid != GID_INVALID)
                 if (chown(path, uid, gid) < 0)
                         return -errno;
 
@@ -1520,9 +1520,9 @@ int getpeercred(int fd, struct ucred *ucred) {
          * to namespacing issues */
         if (u.pid <= 0)
                 return -ENODATA;
-        if (u.uid == (uid_t) -1)
+        if (u.uid == UID_INVALID)
                 return -ENODATA;
-        if (u.gid == (gid_t) -1)
+        if (u.gid == GID_INVALID)
                 return -ENODATA;
 
         *ucred = u;