unsymlink

commit f34b5200e6a7d6feda435e13ddf244ccdb9dd105
parent 4dd515e1248755ff46115f9bc26d6fa54bf7c3c8
Author: Louis Burda <quent.burda@gmail.com>
Date:   Thu, 15 Jun 2023 13:36:53 +0200

Remove err.h dependency

Diffstat:
M
unsymlink.c
 | 
30
+++++++++++++++++++-----------

1 file changed, 19 insertions(+), 11 deletions(-)
diff --git a/unsymlink.c b/unsymlink.c
@@ -1,8 +1,10 @@
 #include <sys/stat.h>
 #include <unistd.h>
 #include <fcntl.h>
-#include <err.h>
+#include <errno.h>
 #include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
 
 static int status = 0;
 
@@ -11,16 +13,20 @@ unsymlink(const char *path)
 {
 	struct stat attrs;
 
-	if (fstatat(AT_FDCWD, path, &attrs, AT_SYMLINK_NOFOLLOW))
-		err(1, "unsymlink: stat");
+	if (fstatat(AT_FDCWD, path, &attrs, AT_SYMLINK_NOFOLLOW)) {
+		fprintf(stderr, "unsymlink: stat: %s\n", strerror(errno));
+		exit(1);
+	}
 
 	if ((attrs.st_mode & S_IFMT) != S_IFLNK) {
-		warnx("not a symlink: %s", path);
+		fprintf(stderr, "unsymlink: not a symlink '%s'\n", path);
 		return 1;
 	}
 
-	if (unlink(path))
-		err(1, "unsymlink: unlink");
+	if (unlink(path)) {
+		fprintf(stderr, "unsymlink: unlink: %s\n", strerror(errno));
+		exit(1);
+	}
 
 	return 0;
 }
@@ -28,14 +34,16 @@ unsymlink(const char *path)
 int
 main(int argc, const char **argv)
 {
-	int i;
+	int status, i;
 
 	if (argc <= 1) {
-		printf("Usage: unsymlink FILE..\n");
-	} else {
-		for (i = 1; i < argc; i++)
-			status |= unsymlink(argv[i]);
+		fprintf(stderr, "Usage: unsymlink FILE..\n");
+		return 1;
 	}
 
+	status = 0;
+	for (i = 1; i < argc; i++)
+		status |= unsymlink(argv[i]);
+
 	return status;
 }