ubase

commit a7dc139c3585f822384b9b7d24b821ff55f30e2f
parent 211f13ae95ce8a0990e162636afbaba7d831c32c
Author: sin <sin@2f30.org>
Date:   Mon, 12 Aug 2013 09:52:43 +0100

Make stat(1) work with stdin as well.

Implement show_stat().

Diffstat:
M
stat.c
 | 
59
+++++++++++++++++++++++++++++++++++------------------------

1 file changed, 35 insertions(+), 24 deletions(-)
diff --git a/stat.c b/stat.c
@@ -1,11 +1,15 @@
 /* See LICENSE file for copyright and license details. */
-#include <stdio.h>
-#include <inttypes.h>
-#include <time.h>
 #include <sys/stat.h>
 #include <sys/types.h>
+#include <unistd.h>
+#include <errno.h>
+#include <inttypes.h>
+#include <stdio.h>
+#include <time.h>
 #include "util.h"
 
+static void show_stat(const char *file, struct stat *st);
+
 static void
 usage(void)
 {
@@ -16,40 +20,47 @@ int
 main(int argc, char *argv[])
 {
 	struct stat st;
-	char buf[100];
-	int i, r, ret = 0;
-
+	int i, ret = 0;
 
 	ARGBEGIN {
 	default:
 		usage();
 	} ARGEND;
 
-	if (argc < 1)
-		usage();
+	if (argc == 0) {
+		if (fstat(STDIN_FILENO, &st) < 0)
+			eprintf("stat <stdin>:");
+		show_stat("<stdin>", &st);
+	}
 
 	for (i = 0; i < argc; i++) {
-		r = stat(argv[i], &st);
-		if (r == -1) {
-			fprintf(stderr, "stat '%s': ", argv[i]);
+		if (stat(argv[i], &st) == -1) {
+			fprintf(stderr, "stat %s: ", argv[i]);
 			perror(NULL);
 			ret = 1;
 			continue;
 		}
-
-		printf("  File: ‘%s’\n", argv[i]);
-		printf("  Size: %ju\tBlocks: %ju\tIO Block: %ju\n", (uintmax_t)st.st_size,
-		       (uintmax_t)st.st_blocks, (uintmax_t)st.st_blksize);
-		printf("Device: %xh/%ud\tInode: %ju\tLinks %ju\n", major(st.st_dev),
-		       minor(st.st_dev), (uintmax_t)st.st_ino, (uintmax_t)st.st_nlink);
-		printf("Access: %04o\tUid: %u\tGid: %u\n", st.st_mode & 0777, st.st_uid, st.st_gid);
-		strftime(buf, sizeof(buf), "%F %T %z", localtime(&st.st_atime));
-		printf("Access: %s\n", buf);
-		strftime(buf, sizeof(buf), "%F %T %z", localtime(&st.st_mtime));
-		printf("Modify: %s\n", buf);
-		strftime(buf, sizeof(buf), "%F %T %z", localtime(&st.st_ctime));
-		printf("Change: %s\n", buf);
+		show_stat(argv[i], &st);
 	}
 
 	return ret;
 }
+
+static void
+show_stat(const char *file, struct stat *st)
+{
+	char buf[100];
+
+	printf("  File: ‘%s’\n", file);
+	printf("  Size: %ju\tBlocks: %ju\tIO Block: %ju\n", (uintmax_t)st->st_size,
+	       (uintmax_t)st->st_blocks, (uintmax_t)st->st_blksize);
+	printf("Device: %xh/%ud\tInode: %ju\tLinks %ju\n", major(st->st_dev),
+	       minor(st->st_dev), (uintmax_t)st->st_ino, (uintmax_t)st->st_nlink);
+	printf("Access: %04o\tUid: %u\tGid: %u\n", st->st_mode & 0777, st->st_uid, st->st_gid);
+	strftime(buf, sizeof(buf), "%F %T %z", localtime(&st->st_atime));
+	printf("Access: %s\n", buf);
+	strftime(buf, sizeof(buf), "%F %T %z", localtime(&st->st_mtime));
+	printf("Modify: %s\n", buf);
+	strftime(buf, sizeof(buf), "%F %T %z", localtime(&st->st_ctime));
+	printf("Change: %s\n", buf);
+}