X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;ds=sidebyside;f=util-linux%2Ffreeramdisk.c;h=cf25fae6abb61f6d0cf27ff0a0aa29ab039c1ab3;hb=3a0057e2c5bd602ca37086cd70f4d61f527c406c;hp=9636dbdcf61be8df184eaaed6b7263804bd88f13;hpb=9cf3bfa7c1bf3ad959c61711c9a5ac1969149300;p=oweals%2Fbusybox.git

diff --git a/util-linux/freeramdisk.c b/util-linux/freeramdisk.c
index 9636dbdcf..cf25fae6a 100644
--- a/util-linux/freeramdisk.c
+++ b/util-linux/freeramdisk.c
@@ -23,42 +23,36 @@
 
 #include <stdio.h>
 #include <string.h>
-#include <sys/mount.h>
 #include <sys/types.h>
-#include <sys/stat.h>
 #include <fcntl.h>
 #include <sys/ioctl.h>
 #include <errno.h>
-#include "internal.h"
+#include <stdlib.h>
+#include "busybox.h"
 
 
-static const char freeramdisk_usage[] =
-	"freeramdisk DEVICE\n\n"
-	"Free all memory used by the specified ramdisk.\n";
+/* From linux/fs.h */
+#define BLKFLSBUF  _IO(0x12,97)	/* flush buffer cache */
 
 extern int
 freeramdisk_main(int argc, char **argv)
 {
-	char  rname[256] = "/dev/ram";
 	int   f;
 
-	if (argc < 2 || ( argv[1] && *argv[1] == '-')) {
-		usage(freeramdisk_usage);
+	if (argc != 2 || *argv[1] == '-') {
+		show_usage();
 	}
 
-	if (argc >1)
-		strcpy(rname, argv[1]);
-
-	if ((f = open(rname, O_RDWR)) == -1) {
-		fatalError( "freeramdisk: cannot open %s: %s\n", rname, strerror(errno));
+	if ((f = open(argv[1], O_RDWR)) == -1) {
+		perror_msg_and_die("cannot open %s", argv[1]);
 	}
 	if (ioctl(f, BLKFLSBUF) < 0) {
-		fatalError( "freeramdisk: failed ioctl on %s: %s\n", rname, strerror(errno));
+		perror_msg_and_die("failed ioctl on %s", argv[1]);
 	}
 	/* Don't bother closing.  Exit does
 	 * that, so we can save a few bytes */
 	/* close(f); */
-	exit(TRUE);
+	return EXIT_SUCCESS;
 }
 
 /*