From 8ea7d8cdaf4a03cdc06abc8b752b589271140a88 Mon Sep 17 00:00:00 2001
From: Erik Andersen <andersen@codepoet.org>
Date: Sat, 20 May 2000 00:40:08 +0000
Subject: [PATCH] First pass at fixing tar segfault, and more portability
 updates.  -Erik

---
 TODO                    |  5 +++++
 archival/tar.c          |  5 +++--
 cmdedit.c               |  6 ++++++
 fsck_minix.c            |  1 +
 internal.h              | 12 ------------
 mkfs_minix.c            |  5 +----
 shell/cmdedit.c         |  6 ++++++
 tar.c                   |  5 +++--
 util-linux/fsck_minix.c |  1 +
 util-linux/mkfs_minix.c |  5 +----
 10 files changed, 27 insertions(+), 24 deletions(-)

diff --git a/TODO b/TODO
index 7ab43c36d..febd9bf51 100644
--- a/TODO
+++ b/TODO
@@ -22,6 +22,11 @@ Bugs that need fixing:
  - 'grep *foo file' segfaults
  - ps dirent race bug (need to stat the file before attempting chdir)
 
+
+/busybox tar tvf
+Segmentation fault (core dumped)
+
+
 -----------
 
 * Make insmod actually work
diff --git a/archival/tar.c b/archival/tar.c
index 6784d80ff..c5aad45d6 100644
--- a/archival/tar.c
+++ b/archival/tar.c
@@ -185,7 +185,7 @@ extern int tar_main(int argc, char **argv)
 		usage(tar_usage);
 
 	/* Parse any options */
-	while (--argc > 0 && **(++argv) == '-') {
+	while (--argc > 0 && strspn(*(++argv), "-cxt") >0 ) {
 		stopIt=FALSE;
 		while (stopIt==FALSE && *(++(*argv))) {
 			switch (**argv) {
@@ -265,7 +265,8 @@ extern int tar_main(int argc, char **argv)
 #else
 		exit(writeTarFile(tarName, tostdoutFlag, verboseFlag, argc, argv, excludeList));
 #endif
-	} else {
+	}
+	if (listFlag == TRUE || extractFlag == TRUE) {
 		exit(readTarFile(tarName, extractFlag, listFlag, tostdoutFlag, verboseFlag, excludeList));
 	}
 
diff --git a/cmdedit.c b/cmdedit.c
index e4c88c265..22831b10c 100644
--- a/cmdedit.c
+++ b/cmdedit.c
@@ -70,6 +70,12 @@ static struct history *his_end = NULL;	/* Last element in command line list */
 
 /* Current termio and the previous termio before starting sh */
 struct termios initial_settings, new_settings;
+
+
+#ifndef	_POSIX_VDISABLE
+#define	_POSIX_VDISABLE	'\0'
+#endif
+
 #endif
 
 
diff --git a/fsck_minix.c b/fsck_minix.c
index 7d27566b8..1e482f3f9 100644
--- a/fsck_minix.c
+++ b/fsck_minix.c
@@ -97,6 +97,7 @@
 #include <termios.h>
 #include <mntent.h>
 #include <sys/stat.h>
+#include <sys/param.h>
 
 #include <linux/fs.h>
 #include <linux/minix_fs.h>
diff --git a/internal.h b/internal.h
index 9c55f5a49..909bf6473 100644
--- a/internal.h
+++ b/internal.h
@@ -284,18 +284,6 @@ int nfsmount(const char *spec, const char *node, unsigned long *flags,
 	char **extra_opts, char **mount_opts, int running_bg);
 #endif
 
-#if defined (BB_FSCK_MINIX) || defined (BB_MKFS_MINIX)
-/* Bit map related macros.  */
-#ifndef setbit
-#define CHAR_BITS      8 /* Number of bits in a `char'.  */
-#define setbit(a,i)     ((a)[(i)/CHAR_BITS] |= 1<<((i)%CHAR_BITS))
-#define clrbit(a,i)     ((a)[(i)/CHAR_BITS] &= ~(1<<((i)%CHAR_BITS)))
-#define isset(a,i)      ((a)[(i)/CHAR_BITS] & (1<<((i)%CHAR_BITS)))
-#define isclr(a,i)      (((a)[(i)/CHAR_BITS] & (1<<((i)%CHAR_BITS))) == 0)
-#endif
-#endif
-
-
 #ifndef RB_POWER_OFF
 /* Stop system and switch power off if possable.  */
 #define RB_POWER_OFF   0x4321fedc
diff --git a/mkfs_minix.c b/mkfs_minix.c
index f4f1d0997..c6f057a07 100644
--- a/mkfs_minix.c
+++ b/mkfs_minix.c
@@ -74,6 +74,7 @@
 #include <termios.h>
 #include <sys/stat.h>
 #include <sys/ioctl.h>
+#include <sys/param.h>
 #include <mntent.h>
 
 #include <linux/fs.h>
@@ -83,10 +84,6 @@
 #define HAVE_MINIX2 1
 #endif
 
-#ifndef __GNUC__
-#error "needs gcc for the bitop-__asm__'s"
-#endif
-
 #ifndef __linux__
 #define volatile
 #endif
diff --git a/shell/cmdedit.c b/shell/cmdedit.c
index e4c88c265..22831b10c 100644
--- a/shell/cmdedit.c
+++ b/shell/cmdedit.c
@@ -70,6 +70,12 @@ static struct history *his_end = NULL;	/* Last element in command line list */
 
 /* Current termio and the previous termio before starting sh */
 struct termios initial_settings, new_settings;
+
+
+#ifndef	_POSIX_VDISABLE
+#define	_POSIX_VDISABLE	'\0'
+#endif
+
 #endif
 
 
diff --git a/tar.c b/tar.c
index 6784d80ff..c5aad45d6 100644
--- a/tar.c
+++ b/tar.c
@@ -185,7 +185,7 @@ extern int tar_main(int argc, char **argv)
 		usage(tar_usage);
 
 	/* Parse any options */
-	while (--argc > 0 && **(++argv) == '-') {
+	while (--argc > 0 && strspn(*(++argv), "-cxt") >0 ) {
 		stopIt=FALSE;
 		while (stopIt==FALSE && *(++(*argv))) {
 			switch (**argv) {
@@ -265,7 +265,8 @@ extern int tar_main(int argc, char **argv)
 #else
 		exit(writeTarFile(tarName, tostdoutFlag, verboseFlag, argc, argv, excludeList));
 #endif
-	} else {
+	}
+	if (listFlag == TRUE || extractFlag == TRUE) {
 		exit(readTarFile(tarName, extractFlag, listFlag, tostdoutFlag, verboseFlag, excludeList));
 	}
 
diff --git a/util-linux/fsck_minix.c b/util-linux/fsck_minix.c
index 7d27566b8..1e482f3f9 100644
--- a/util-linux/fsck_minix.c
+++ b/util-linux/fsck_minix.c
@@ -97,6 +97,7 @@
 #include <termios.h>
 #include <mntent.h>
 #include <sys/stat.h>
+#include <sys/param.h>
 
 #include <linux/fs.h>
 #include <linux/minix_fs.h>
diff --git a/util-linux/mkfs_minix.c b/util-linux/mkfs_minix.c
index f4f1d0997..c6f057a07 100644
--- a/util-linux/mkfs_minix.c
+++ b/util-linux/mkfs_minix.c
@@ -74,6 +74,7 @@
 #include <termios.h>
 #include <sys/stat.h>
 #include <sys/ioctl.h>
+#include <sys/param.h>
 #include <mntent.h>
 
 #include <linux/fs.h>
@@ -83,10 +84,6 @@
 #define HAVE_MINIX2 1
 #endif
 
-#ifndef __GNUC__
-#error "needs gcc for the bitop-__asm__'s"
-#endif
-
 #ifndef __linux__
 #define volatile
 #endif