From a6bc98ce25cd9d9dba896e93ed441ff162f6793b Mon Sep 17 00:00:00 2001
From: Long Nguyen <nguyen.long.908132@gmail.com>
Date: Sun, 9 May 2021 17:43:20 +0700
Subject: [PATCH 10/14] Properly check for the presence of bitmasks

---
 src/fsmagic.c | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/src/fsmagic.c b/src/fsmagic.c
index 5204f20..7244841 100644
--- a/src/fsmagic.c
+++ b/src/fsmagic.c
@@ -66,7 +66,7 @@ FILE_RCSID("@(#)$File: fsmagic.c,v 1.81 2019/07/16 13:30:32 christos Exp $")
 # define minor(dev)  ((dev) & 0xff)
 #endif
 #undef HAVE_MAJOR
-#ifdef	S_IFLNK
+#if S_IFLNK != 0
 file_private int
 bad_link(struct magic_set *ms, int err, char *buf)
 {
@@ -108,7 +108,7 @@ file_fsmagic(struct magic_set *ms, const char *fn, struct stat *sb)
 	int ret, did = 0;
 	int mime = ms->flags & MAGIC_MIME;
 	int silent = ms->flags & (MAGIC_APPLE|MAGIC_EXTENSION);
-#ifdef	S_IFLNK
+#if S_IFLNK != 0
 	char buf[BUFSIZ+4];
 	ssize_t nch;
 	struct stat tstatbuf;
@@ -122,7 +122,7 @@ file_fsmagic(struct magic_set *ms, const char *fn, struct stat *sb)
 	 * Fstat is cheaper but fails for files you don't have read perms on.
 	 * On 4.2BSD and similar systems, use lstat() to identify symlinks.
 	 */
-#ifdef	S_IFLNK
+#if S_IFLNK != 0
 	if ((ms->flags & MAGIC_SYMLINK) == 0)
 		ret = lstat(fn, sb);
 	else
@@ -171,17 +171,17 @@ file_fsmagic(struct magic_set *ms, const char *fn, struct stat *sb)
 
 	ret = 1;
 	if (!mime && !silent) {
-#ifdef S_ISUID
+#if S_ISUID != 0
 		if (sb->st_mode & S_ISUID)
 			if (file_printf(ms, "%ssetuid", COMMA) == -1)
 				return -1;
 #endif
-#ifdef S_ISGID
+#if S_ISGID != 0
 		if (sb->st_mode & S_ISGID)
 			if (file_printf(ms, "%ssetgid", COMMA) == -1)
 				return -1;
 #endif
-#ifdef S_ISVTX
+#if S_ISVTX != 0
 		if (sb->st_mode & S_ISVTX)
 			if (file_printf(ms, "%ssticky", COMMA) == -1)
 				return -1;
@@ -197,7 +197,7 @@ file_fsmagic(struct magic_set *ms, const char *fn, struct stat *sb)
 		} else if (file_printf(ms, "%sdirectory", COMMA) == -1)
 			return -1;
 		break;
-#ifdef S_IFCHR
+#if S_IFCHR != 0
 	case S_IFCHR:
 		/*
 		 * If -s has been specified, treat character special files
@@ -232,7 +232,7 @@ file_fsmagic(struct magic_set *ms, const char *fn, struct stat *sb)
 		}
 		break;
 #endif
-#ifdef S_IFBLK
+#if S_IFBLK != 0
 	case S_IFBLK:
 		/*
 		 * If -s has been specified, treat block special files
@@ -268,7 +268,7 @@ file_fsmagic(struct magic_set *ms, const char *fn, struct stat *sb)
 		break;
 #endif
 	/* TODO add code to handle V7 MUX and Blit MUX files */
-#ifdef	S_IFIFO
+#if S_IFIFO != 0
 	case S_IFIFO:
 		if((ms->flags & MAGIC_DEVICES) != 0)
 			break;
@@ -280,7 +280,7 @@ file_fsmagic(struct magic_set *ms, const char *fn, struct stat *sb)
 			return -1;
 		break;
 #endif
-#ifdef	S_IFDOOR
+#if S_IFDOOR != 0
 	case S_IFDOOR:
 		if (mime) {
 			if (handle_mime(ms, mime, "door") == -1)
@@ -290,7 +290,7 @@ file_fsmagic(struct magic_set *ms, const char *fn, struct stat *sb)
 			return -1;
 		break;
 #endif
-#ifdef	S_IFLNK
+#if S_IFLNK != 0
 	case S_IFLNK:
 		if ((nch = readlink(fn, buf, BUFSIZ-1)) <= 0) {
 			if (ms->flags & MAGIC_ERROR) {
@@ -378,7 +378,7 @@ file_fsmagic(struct magic_set *ms, const char *fn, struct stat *sb)
 		}
 		break;
 #endif
-#ifdef	S_IFSOCK
+#if S_IFSOCK != 0
 #ifndef __COHERENT__
 	case S_IFSOCK:
 		if (mime) {
-- 
2.29.2.windows.2