[PATCH v2 04/11] copy.c: style fix

["Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>]

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 copy.c | 50 +++++++++++++++++++++++++++++---------------------
 1 file changed, 29 insertions(+), 21 deletions(-)

diff --git a/copy.c b/copy.c
index 074b609..60c7d8a 100644
--- a/copy.c
+++ b/copy.c
@@ -111,8 +111,10 @@ int FAST_FUNC copy_file(const char *source, const char *dest, int flags)
 		if (dest_exists) {
 			if (!S_ISDIR(dest_stat.st_mode))
 				return error(_("target '%s' is not a directory"), dest);
-			/* race here: user can substitute a symlink between
-			 * this check and actual creation of files inside dest */
+			/*
+			 * race here: user can substitute a symlink between
+			 * this check and actual creation of files inside dest
+			 */
 		} else {
 			/* Create DEST */
 			mode_t mode;
@@ -130,22 +132,24 @@ int FAST_FUNC copy_file(const char *source, const char *dest, int flags)
 			if (lstat(dest, &dest_stat) < 0)
 				return error_errno(_("can't stat '%s'"), dest);
 		}
-		/* remember (dev,inode) of each created dir.
-		 * NULL: name is not remembered */
+		/*
+		 * remember (dev,inode) of each created dir. name is
+		 * not remembered
+		 */
 		add_to_ino_dev_hashtable(&dest_stat, NULL);
 
 		/* Recursively copy files in SOURCE */
 		dp = opendir(source);
-		if (dp == NULL) {
+		if (!dp) {
 			retval = -1;
 			goto preserve_mode_ugid_time;
 		}
 
-		while ((d = readdir(dp)) != NULL) {
+		while ((d = readdir(dp))) {
 			char *new_source, *new_dest;
 
 			new_source = concat_subpath_file(source, d->d_name);
-			if (new_source == NULL)
+			if (!new_source)
 				continue;
 			new_dest = concat_path_file(dest, d->d_name);
 			if (copy_file(new_source, new_dest, flags & ~FILEUTILS_DEREFERENCE_L0) < 0)
@@ -155,16 +159,15 @@ int FAST_FUNC copy_file(const char *source, const char *dest, int flags)
 		}
 		closedir(dp);
 
-		if (!dest_exists
-		 && chmod(dest, source_stat.st_mode & ~saved_umask) < 0
-		) {
+		if (!dest_exists &&
+		    chmod(dest, source_stat.st_mode & ~saved_umask) < 0) {
 			error_errno(_("can't preserve permissions of '%s'"), dest);
 			/* retval = -1; - WRONG! copy *WAS* made */
 		}
 		goto preserve_mode_ugid_time;
 	}
 
-	if (S_ISREG(source_stat.st_mode) ) { /* "cp [-opts] regular_file thing2" */
+	if (S_ISREG(source_stat.st_mode)) { /* "cp [-opts] regular_file thing2" */
 		int src_fd;
 		int dst_fd;
 		mode_t new_mode;
@@ -199,7 +202,7 @@ int FAST_FUNC copy_file(const char *source, const char *dest, int flags)
 		if (!S_ISREG(source_stat.st_mode))
 			new_mode = 0666;
 
-		// POSIX way is a security problem versus (sym)link attacks
+		/* POSIX way is a security problem versus (sym)link attacks */
 		if (!ENABLE_FEATURE_NON_POSIX_CP) {
 			dst_fd = open(dest, O_WRONLY|O_CREAT|O_TRUNC, new_mode);
 		} else { /* safe way: */
@@ -226,13 +229,15 @@ int FAST_FUNC copy_file(const char *source, const char *dest, int flags)
 			retval = error_errno(_("error writing to '%s'"), dest);
 		/* ...but read size is already checked by bb_copyfd_eof */
 		close(src_fd);
-		/* "cp /dev/something new_file" should not
-		 * copy mode of /dev/something */
+		/*
+		 * "cp /dev/something new_file" should not
+		 * copy mode of /dev/something
+		 */
 		if (!S_ISREG(source_stat.st_mode))
 			return retval;
 		goto preserve_mode_ugid_time;
 	}
- dont_cat:
+dont_cat:
 
 	/* Source is a symlink or a special file */
 	/* We are lazy here, a bit lax with races... */
@@ -252,20 +257,23 @@ int FAST_FUNC copy_file(const char *source, const char *dest, int flags)
 			if (lchown(dest, source_stat.st_uid, source_stat.st_gid) < 0)
 				error_errno(_("can't preserve %s of '%s'"), "ownership", dest);
 		}
-		/* _Not_ jumping to preserve_mode_ugid_time:
-		 * symlinks don't have those */
+		/*
+		 * _Not_ jumping to preserve_mode_ugid_time: symlinks
+		 * don't have those
+		 */
 		return 0;
 	}
-	if (S_ISBLK(source_stat.st_mode) || S_ISCHR(source_stat.st_mode)
-	 || S_ISSOCK(source_stat.st_mode) || S_ISFIFO(source_stat.st_mode)
-	) {
+	if (S_ISBLK(source_stat.st_mode) ||
+	    S_ISCHR(source_stat.st_mode) ||
+	    S_ISSOCK(source_stat.st_mode) ||
+	    S_ISFIFO(source_stat.st_mode)) {
 		if (mknod(dest, source_stat.st_mode, source_stat.st_rdev) < 0)
 			return error_errno(_("can't create '%s'"), dest);
 	} else
 		return error(_("unrecognized file '%s' with mode %x"),
 			     source, source_stat.st_mode);
 
- preserve_mode_ugid_time:
+preserve_mode_ugid_time:
 
 	if (1 /*FILEUTILS_PRESERVE_STATUS*/) {
 		struct timeval times[2];
-- 
2.8.2.524.g6ff3d78