A nice patch from Larry Doolittle that adds -Wshadow and

cleans up most of the now-revealed problems.

4 files changed, 30 insertions, 28 deletions

diff --git a/util-linux/fsck_minix.c b/util-linux/fsck_minix.c
index bd0c8a61c..a2421fc34 100644
--- a/util-linux/fsck_minix.c
+++ b/util-linux/fsck_minix.c
@@ -1439,18 +1439,18 @@ extern int fsck_minix_main(int argc, char **argv)
 		check();
 	}
 	if (verbose) {
-		int i, free;
+		int i, free_cnt;
 
-		for (i = 1, free = 0; i <= INODES; i++)
+		for (i = 1, free_cnt = 0; i <= INODES; i++)
 			if (!inode_in_use(i))
-				free++;
-		printf("\n%6ld inodes used (%ld%%)\n", (INODES - free),
-			   100 * (INODES - free) / INODES);
-		for (i = FIRSTZONE, free = 0; i < ZONES; i++)
+				free_cnt++;
+		printf("\n%6ld inodes used (%ld%%)\n", (INODES - free_cnt),
+			   100 * (INODES - free_cnt) / INODES);
+		for (i = FIRSTZONE, free_cnt = 0; i < ZONES; i++)
 			if (!zone_in_use(i))
-				free++;
-		printf("%6ld zones used (%ld%%)\n", (ZONES - free),
-			   100 * (ZONES - free) / ZONES);
+				free_cnt++;
+		printf("%6ld zones used (%ld%%)\n", (ZONES - free_cnt),
+			   100 * (ZONES - free_cnt) / ZONES);
 		printf("\n%6d regular files\n"
 			   "%6d directories\n"
 			   "%6d character device files\n"
diff --git a/util-linux/nfsmount.c b/util-linux/nfsmount.c
index cd815102c..6643ed5aa 100644
--- a/util-linux/nfsmount.c
+++ b/util-linux/nfsmount.c
@@ -157,7 +157,7 @@ static const int NFS_MOUNT_NONLM = 0x0200;	/* 3 */
 #define HAVE_personality
 #define HAVE_tm_gmtoff
 
-static char *nfs_strerror(int stat);
+static char *nfs_strerror(int status);
 
 #define MAKE_VERSION(p,q,r)	(65536*(p) + 256*(q) + (r))
 #define MAX_NFSPROT ((nfs_mount_version >= 4) ? 3 : 2)
@@ -873,16 +873,16 @@ static struct {
 	{ -1,			EIO		}
 };
 
-static char *nfs_strerror(int stat)
+static char *nfs_strerror(int status)
 {
 	int i;
 	static char buf[256];
 
 	for (i = 0; nfs_errtbl[i].stat != -1; i++) {
-		if (nfs_errtbl[i].stat == stat)
+		if (nfs_errtbl[i].stat == status)
 			return strerror(nfs_errtbl[i].errnum);
 	}
-	sprintf(buf, _("unknown nfs status return value: %d"), stat);
+	sprintf(buf, _("unknown nfs status return value: %d"), status);
 	return buf;
 }
 
diff --git a/util-linux/rdate.c b/util-linux/rdate.c
index 5f31282fc..ead1e7c7d 100644
--- a/util-linux/rdate.c
+++ b/util-linux/rdate.c
@@ -40,7 +40,7 @@ static const int RFC_868_BIAS = 2208988800UL;
 static time_t askremotedate(const char *host)
 {
 	struct hostent *h;
-	struct sockaddr_in sin;
+	struct sockaddr_in s_in;
 	struct servent *tserv;
 	unsigned long int nett, localt;
 	int fd;
@@ -54,11 +54,11 @@ static time_t askremotedate(const char *host)
 	if ((fd = socket(AF_INET, SOCK_STREAM, 0)) < 0)    /* get net connection */
 		perror_msg_and_die("%s", "socket");
 
-	memcpy(&sin.sin_addr, h->h_addr, sizeof(sin.sin_addr));
-	sin.sin_port= tserv->s_port;
-	sin.sin_family = AF_INET;
+	memcpy(&s_in.sin_addr, h->h_addr, sizeof(s_in.sin_addr));
+	s_in.sin_port= tserv->s_port;
+	s_in.sin_family = AF_INET;
 
-	if (connect(fd, (struct sockaddr *)&sin, sizeof(sin)) < 0)      /* connect to time server */
+	if (connect(fd, (struct sockaddr *)&s_in, sizeof(s_in)) < 0)      /* connect to time server */
 		perror_msg_and_die("%s", host);
 
 	if (read(fd, (void *)&nett, 4) != 4)    /* read time from server */
@@ -79,7 +79,7 @@ static time_t askremotedate(const char *host)
 
 int rdate_main(int argc, char **argv)
 {
-	time_t time;
+	time_t remote_time;
 	int opt;
 	int setdate = 0;
 	int printdate= 0;
@@ -111,15 +111,15 @@ int rdate_main(int argc, char **argv)
 	if (optind == argc)
 		show_usage();
 
-	time = askremotedate(argv[optind]);
+	remote_time = askremotedate(argv[optind]);
 
 	if (setdate) {
-		if (stime(&time) < 0)
+		if (stime(&remote_time) < 0)
 			perror_msg_and_die("Could not set time of day");
 	}
 
 	if (printdate)
-		printf("%s", ctime(&time));
+		printf("%s", ctime(&remote_time));
 
 	return EXIT_SUCCESS;
 }
diff --git a/util-linux/umount.c b/util-linux/umount.c
index 2868a1bc3..cc7d38d7c 100644
--- a/util-linux/umount.c
+++ b/util-linux/umount.c
@@ -57,7 +57,9 @@ static int doForce = FALSE;
 #if defined BB_FEATURE_MOUNT_LOOP
 static int freeLoop = TRUE;
 #endif
+#if defined BB_MTAB
 static int useMtab = TRUE;
+#endif
 static int umountAll = FALSE;
 static int doRemount = FALSE;
 extern const char mtab_file[];	/* Defined in utility.c */
@@ -162,7 +164,7 @@ void mtab_free(void)
 }
 #endif
 
-static int do_umount(const char *name, int useMtab)
+static int do_umount(const char *name)
 {
 	int status;
 	char *blockDevice = mtab_getinfo(name, MTAB_GETDEVICE);
@@ -204,7 +206,7 @@ static int do_umount(const char *name, int useMtab)
 	return (FALSE);
 }
 
-static int umount_all(int useMtab)
+static int umount_all(void)
 {
 	int status = TRUE;
 	char *mountpt;
@@ -214,14 +216,14 @@ static int umount_all(int useMtab)
 		/* Never umount /proc on a umount -a */
 		if (strstr(mountpt, "proc")!= NULL)
 			continue;
-		if (!do_umount(mountpt, useMtab)) {
+		if (!do_umount(mountpt)) {
 			/* Don't bother retrying the umount on busy devices */
 			if (errno == EBUSY) {
 				perror_msg("%s", mountpt);
 				status = FALSE;
 				continue;
 			}
-			if (!do_umount(mountpt, useMtab)) {
+			if (!do_umount(mountpt)) {
 				printf("Couldn't umount %s on %s: %s\n",
 					   mountpt, mtab_getinfo(mountpt, MTAB_GETDEVICE),
 					   strerror(errno));
@@ -275,12 +277,12 @@ extern int umount_main(int argc, char **argv)
 
 	mtab_read();
 	if (umountAll == TRUE) {
-		if (umount_all(useMtab) == TRUE)
+		if (umount_all() == TRUE)
 			return EXIT_SUCCESS;
 		else
 			return EXIT_FAILURE;
 	}
-	if (do_umount(*argv, useMtab) == TRUE)
+	if (do_umount(*argv) == TRUE)
 		return EXIT_SUCCESS;
 	perror_msg_and_die("%s", *argv);
 }