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authorDenis Vlasenko2006-11-17 20:29:00 +0000
committerDenis Vlasenko2006-11-17 20:29:00 +0000
commita7189f01a4a19a9c8852e84b322fc3d8cbda92eb (patch)
tree436e3ab7b6f055553199153e99f6b7589fb488ec
parent04c6386c45cd795617dd754066ac3bd6a62757cb (diff)
downloadbusybox-a7189f01a4a19a9c8852e84b322fc3d8cbda92eb.zip
busybox-a7189f01a4a19a9c8852e84b322fc3d8cbda92eb.tar.gz
add -Wundef, fix uncovered bugs
-rw-r--r--Makefile.flags2
-rw-r--r--e2fsprogs/blkid/blkid_getsize.c2
-rw-r--r--e2fsprogs/blkid/devname.c8
-rw-r--r--e2fsprogs/blkid/devno.c8
-rw-r--r--e2fsprogs/blkid/resolve.c2
-rw-r--r--e2fsprogs/e2fsck.c2
-rw-r--r--e2fsprogs/e2p/fgetsetflags.c8
-rw-r--r--e2fsprogs/e2p/fgetsetversion.c6
-rw-r--r--e2fsprogs/ext2fs/finddev.c10
-rw-r--r--include/platform.h2
-rw-r--r--networking/ifconfig.c2
-rw-r--r--networking/interface.c2
-rw-r--r--networking/libiproute/ll_proto.c2
-rw-r--r--networking/udhcp/clientpacket.c2
-rw-r--r--networking/udhcp/clientsocket.c2
-rw-r--r--networking/udhcp/packet.c2
-rw-r--r--networking/udhcp/socket.c2
-rw-r--r--procps/renice.c26
-rw-r--r--shell/ash.c55
19 files changed, 71 insertions, 74 deletions
diff --git a/Makefile.flags b/Makefile.flags
index 12c5d58..ed42c2b 100644
--- a/Makefile.flags
+++ b/Makefile.flags
@@ -11,7 +11,7 @@ CPPFLAGS += \
-D_GNU_SOURCE -DNDEBUG \
$(if $(CONFIG_LFS),-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64) \
-D"BB_VER=KBUILD_STR($(BB_VER))" -DBB_BT=AUTOCONF_TIMESTAMP \
- -Wall -Wstrict-prototypes -Wshadow -Werror \
+ -Wall -Wstrict-prototypes -Wshadow -Werror -Wundef \
-funsigned-char -fno-builtin-strlen -finline-limit=0 -static-libgcc \
-Os -falign-functions=1 -falign-jumps=1 -falign-loops=1 \
-fomit-frame-pointer -ffunction-sections -fdata-sections
diff --git a/e2fsprogs/blkid/blkid_getsize.c b/e2fsprogs/blkid/blkid_getsize.c
index 3c5ec5b..941efa4 100644
--- a/e2fsprogs/blkid/blkid_getsize.c
+++ b/e2fsprogs/blkid/blkid_getsize.c
@@ -15,7 +15,7 @@
#include <stdio.h>
#include <unistd.h>
-#if HAVE_ERRNO_H
+#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif
#include <fcntl.h>
diff --git a/e2fsprogs/blkid/devname.c b/e2fsprogs/blkid/devname.c
index 7606e40..532aeea 100644
--- a/e2fsprogs/blkid/devname.c
+++ b/e2fsprogs/blkid/devname.c
@@ -14,20 +14,20 @@
#include <stdio.h>
#include <string.h>
-#if HAVE_UNISTD_H
+#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
-#if HAVE_SYS_TYPES_H
+#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#include <sys/stat.h>
-#if HAVE_ERRNO_H
+#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif
-#if HAVE_SYS_MKDEV_H
+#ifdef HAVE_SYS_MKDEV_H
#include <sys/mkdev.h>
#endif
#include <time.h>
diff --git a/e2fsprogs/blkid/devno.c b/e2fsprogs/blkid/devno.c
index 4f3dd93..13e7f1a 100644
--- a/e2fsprogs/blkid/devno.c
+++ b/e2fsprogs/blkid/devno.c
@@ -13,20 +13,20 @@
#include <stdio.h>
#include <string.h>
-#if HAVE_UNISTD_H
+#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <stdlib.h>
#include <string.h>
-#if HAVE_SYS_TYPES_H
+#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#include <sys/stat.h>
#include <dirent.h>
-#if HAVE_ERRNO_H
+#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif
-#if HAVE_SYS_MKDEV_H
+#ifdef HAVE_SYS_MKDEV_H
#include <sys/mkdev.h>
#endif
diff --git a/e2fsprogs/blkid/resolve.c b/e2fsprogs/blkid/resolve.c
index c6f54a2..2bbcaf3 100644
--- a/e2fsprogs/blkid/resolve.c
+++ b/e2fsprogs/blkid/resolve.c
@@ -12,7 +12,7 @@
*/
#include <stdio.h>
-#if HAVE_UNISTD_H
+#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <stdlib.h>
diff --git a/e2fsprogs/e2fsck.c b/e2fsprogs/e2fsck.c
index 88eedea..4920cd0 100644
--- a/e2fsprogs/e2fsck.c
+++ b/e2fsprogs/e2fsck.c
@@ -4309,7 +4309,7 @@ static int process_block(ext2_filsys fs,
* Should never happen, since only directories
* get called with BLOCK_FLAG_HOLE
*/
-#if DEBUG_E2FSCK
+#ifdef DEBUG_E2FSCK
printf("process_block() called with blk == 0, "
"blockcnt=%d, inode %lu???\n",
blockcnt, p->ino);
diff --git a/e2fsprogs/e2p/fgetsetflags.c b/e2fsprogs/e2p/fgetsetflags.c
index 34e4055..008b798 100644
--- a/e2fsprogs/e2p/fgetsetflags.c
+++ b/e2fsprogs/e2p/fgetsetflags.c
@@ -16,15 +16,15 @@
* 93/10/30 - Creation
*/
-#if HAVE_ERRNO_H
+#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif
-#if HAVE_UNISTD_H
+#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <sys/types.h>
#include <sys/stat.h>
-#if HAVE_EXT2_IOCTLS
+#ifdef HAVE_EXT2_IOCTLS
#include <fcntl.h>
#include <sys/ioctl.h>
#endif
@@ -39,7 +39,7 @@
int fgetsetflags (const char * name, unsigned long * get_flags, unsigned long set_flags)
{
-#if HAVE_EXT2_IOCTLS
+#ifdef HAVE_EXT2_IOCTLS
struct stat buf;
int fd, r, f, save_errno = 0;
diff --git a/e2fsprogs/e2p/fgetsetversion.c b/e2fsprogs/e2p/fgetsetversion.c
index 48cea9d..8d79054 100644
--- a/e2fsprogs/e2p/fgetsetversion.c
+++ b/e2fsprogs/e2p/fgetsetversion.c
@@ -17,10 +17,10 @@
* 93/10/30 - Creation
*/
-#if HAVE_ERRNO_H
+#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif
-#if HAVE_UNISTD_H
+#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <fcntl.h>
@@ -44,7 +44,7 @@
int fgetsetversion (const char * name, unsigned long * get_version, unsigned long set_version)
{
-#if HAVE_EXT2_IOCTLS
+#ifdef HAVE_EXT2_IOCTLS
int fd, r, ver, save_errno = 0;
fd = open (name, OPEN_FLAGS);
diff --git a/e2fsprogs/ext2fs/finddev.c b/e2fsprogs/ext2fs/finddev.c
index 4dda916..5e2cce9 100644
--- a/e2fsprogs/ext2fs/finddev.c
+++ b/e2fsprogs/ext2fs/finddev.c
@@ -13,22 +13,22 @@
#include <stdio.h>
#include <string.h>
-#if HAVE_UNISTD_H
+#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <stdlib.h>
#include <string.h>
-#if HAVE_SYS_TYPES_H
+#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
-#if HAVE_SYS_STAT_H
+#ifdef HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
#include <dirent.h>
-#if HAVE_ERRNO_H
+#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif
-#if HAVE_SYS_MKDEV_H
+#ifdef HAVE_SYS_MKDEV_H
#include <sys/mkdev.h>
#endif
diff --git a/include/platform.h b/include/platform.h
index 91f43f3..345e9cb 100644
--- a/include/platform.h
+++ b/include/platform.h
@@ -34,7 +34,7 @@
#endif
#undef inline
-#if __STDC_VERSION__ > 199901L
+#if defined(__STDC_VERSION__) && __STDC_VERSION__ > 199901L
/* it's a keyword */
#else
# if __GNUC_PREREQ (2,7)
diff --git a/networking/ifconfig.c b/networking/ifconfig.c
index 59b6f0a..371f0fc 100644
--- a/networking/ifconfig.c
+++ b/networking/ifconfig.c
@@ -29,7 +29,7 @@
#include <net/if.h>
#include <net/if_arp.h>
#include <netinet/in.h>
-#if __GLIBC__ >=2 && __GLIBC_MINOR >= 1
+#if __GLIBC__ >=2 && __GLIBC_MINOR__ >= 1
#include <netpacket/packet.h>
#include <net/ethernet.h>
#else
diff --git a/networking/interface.c b/networking/interface.c
index 6c8e938..8bbde7d 100644
--- a/networking/interface.c
+++ b/networking/interface.c
@@ -738,7 +738,7 @@ static const struct hwtype loop_hwtype = {
#include <net/if_arp.h>
-#if (__GLIBC__ >=2 && __GLIBC_MINOR >= 1) || defined(_NEWLIB_VERSION)
+#if (__GLIBC__ >=2 && __GLIBC_MINOR__ >= 1) || defined(_NEWLIB_VERSION)
#include <net/ethernet.h>
#else
#include <linux/if_ether.h>
diff --git a/networking/libiproute/ll_proto.c b/networking/libiproute/ll_proto.c
index f026ab7..a3fe9d3 100644
--- a/networking/libiproute/ll_proto.c
+++ b/networking/libiproute/ll_proto.c
@@ -16,7 +16,7 @@
#include "rt_names.h"
#include "utils.h"
-#if __GLIBC__ >=2 && __GLIBC_MINOR >= 1
+#if __GLIBC__ >=2 && __GLIBC_MINOR__ >= 1
#include <net/ethernet.h>
#else
#include <linux/if_ether.h>
diff --git a/networking/udhcp/clientpacket.c b/networking/udhcp/clientpacket.c
index 58b26c1..4299c2d 100644
--- a/networking/udhcp/clientpacket.c
+++ b/networking/udhcp/clientpacket.c
@@ -11,7 +11,7 @@
#include <string.h>
#include <sys/socket.h>
#include <features.h>
-#if (__GLIBC__ >= 2 && __GLIBC_MINOR >= 1) || defined _NEWLIB_VERSION
+#if (__GLIBC__ >= 2 && __GLIBC_MINOR__ >= 1) || defined _NEWLIB_VERSION
#include <netpacket/packet.h>
#include <net/ethernet.h>
#else
diff --git a/networking/udhcp/clientsocket.c b/networking/udhcp/clientsocket.c
index 982aca1..6aa6175 100644
--- a/networking/udhcp/clientsocket.c
+++ b/networking/udhcp/clientsocket.c
@@ -26,7 +26,7 @@
#include <unistd.h>
#include <netinet/in.h>
#include <features.h>
-#if (__GLIBC__ >= 2 && __GLIBC_MINOR >= 1) || defined _NEWLIB_VERSION
+#if (__GLIBC__ >= 2 && __GLIBC_MINOR__ >= 1) || defined(_NEWLIB_VERSION)
#include <netpacket/packet.h>
#include <net/ethernet.h>
#else
diff --git a/networking/udhcp/packet.c b/networking/udhcp/packet.c
index f12ecd6..e861b82 100644
--- a/networking/udhcp/packet.c
+++ b/networking/udhcp/packet.c
@@ -5,7 +5,7 @@
#include <sys/types.h>
#include <sys/socket.h>
#include <features.h>
-#if (__GLIBC__ >= 2 && __GLIBC_MINOR >= 1) || defined _NEWLIB_VERSION
+#if (__GLIBC__ >= 2 && __GLIBC_MINOR__ >= 1) || defined _NEWLIB_VERSION
#include <netpacket/packet.h>
#include <net/ethernet.h>
#else
diff --git a/networking/udhcp/socket.c b/networking/udhcp/socket.c
index 3f481c3..d1867e9 100644
--- a/networking/udhcp/socket.c
+++ b/networking/udhcp/socket.c
@@ -33,7 +33,7 @@
#include <net/if.h>
#include <errno.h>
#include <features.h>
-#if (__GLIBC__ >= 2 && __GLIBC_MINOR >= 1) || defined _NEWLIB_VERSION
+#if (__GLIBC__ >= 2 && __GLIBC_MINOR__ >= 1) || defined _NEWLIB_VERSION
#include <netpacket/packet.h>
#include <net/ethernet.h>
#else
diff --git a/procps/renice.c b/procps/renice.c
index bcaa94c..65674a4 100644
--- a/procps/renice.c
+++ b/procps/renice.c
@@ -20,23 +20,11 @@
*/
#include "busybox.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <limits.h>
-#include <errno.h>
-#include <unistd.h>
#include <sys/resource.h>
-#if (PRIO_PROCESS < CHAR_MIN) || (PRIO_PROCESS > CHAR_MAX)
-#error Assumption violated : PRIO_PROCESS value
-#endif
-#if (PRIO_PGRP < CHAR_MIN) || (PRIO_PGRP > CHAR_MAX)
-#error Assumption violated : PRIO_PGRP value
-#endif
-#if (PRIO_USER < CHAR_MIN) || (PRIO_USER > CHAR_MAX)
-#error Assumption violated : PRIO_USER value
-#endif
+void BUG_bad_PRIO_PROCESS(void);
+void BUG_bad_PRIO_PGRP(void);
+void BUG_bad_PRIO_USER(void);
int renice_main(int argc, char **argv)
{
@@ -49,6 +37,14 @@ int renice_main(int argc, char **argv)
unsigned who;
char *arg;
+ /* Yes, they are not #defines in glibc 2.4! #if won't work */
+ if (PRIO_PROCESS < CHAR_MIN || PRIO_PROCESS > CHAR_MAX)
+ BUG_bad_PRIO_PROCESS();
+ if (PRIO_PGRP < CHAR_MIN || PRIO_PGRP > CHAR_MAX)
+ BUG_bad_PRIO_PGRP();
+ if (PRIO_USER < CHAR_MIN || PRIO_USER > CHAR_MAX)
+ BUG_bad_PRIO_USER();
+
arg = *++argv;
/* Check if we are using a relative adjustment. */
diff --git a/shell/ash.c b/shell/ash.c
index a34c871..3c76397 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -42,6 +42,7 @@
* When debugging is on, debugging info will be written to ./trace and
* a quit signal will generate a core dump.
*/
+#define DEBUG 0
#define IFS_BROKEN
@@ -50,7 +51,7 @@
#include "busybox.h"
-#ifdef DEBUG
+#if DEBUG
#define _GNU_SOURCE
#endif
@@ -104,7 +105,7 @@ static int *dash_errno;
#error "Do not even bother, ash will not run on uClinux"
#endif
-#ifdef DEBUG
+#if DEBUG
#define _DIAGASSERT(assert_expr) assert(assert_expr)
#else
#define _DIAGASSERT(assert_expr)
@@ -582,7 +583,7 @@ static const char dolatstr[] = { CTLVAR, VSNORMAL|VSQUOTE, '@', '=', '\0' };
static const char illnum[] = "Illegal number: %s";
static const char homestr[] = "HOME";
-#ifdef DEBUG
+#if DEBUG
#define TRACE(param) trace param
#define TRACEV(param) tracev param
#else
@@ -1937,7 +1938,7 @@ struct shparam {
#define uflag optlist[12]
#define viflag optlist[13]
-#ifdef DEBUG
+#if DEBUG
#define nolog optlist[14]
#define debug optlist[15]
#endif
@@ -1964,7 +1965,7 @@ static const char *const optletters_optnames[] = {
"b" "notify",
"u" "nounset",
"\0" "vi",
-#ifdef DEBUG
+#if DEBUG
"\0" "nolog",
"\0" "debug",
#endif
@@ -2011,7 +2012,7 @@ static int redirectsafe(union node *, int);
/* show.h */
-#ifdef DEBUG
+#if DEBUG
static void showtree(union node *);
static void trace(const char *, ...);
static void tracev(const char *, va_list);
@@ -2536,7 +2537,7 @@ static void exverror(int, const char *, va_list)
static void
exraise(int e)
{
-#ifdef DEBUG
+#if DEBUG
if (handler == NULL)
abort();
#endif
@@ -2596,7 +2597,7 @@ exvwarning(const char *msg, va_list ap)
static void
exverror(int cond, const char *msg, va_list ap)
{
-#ifdef DEBUG
+#if DEBUG
if (msg) {
TRACE(("exverror(%d, \"", cond));
TRACEV((msg, ap));
@@ -2785,7 +2786,7 @@ evaltree(union node *n, int flags)
getpid(), n, n->type, flags));
switch (n->type) {
default:
-#ifdef DEBUG
+#if DEBUG
out1fmt("Node type = %d\n", n->type);
fflush(stdout);
break;
@@ -4481,7 +4482,7 @@ commandcmd(int argc, char **argv)
verify |= VERIFY_VERBOSE;
else if (c == 'v')
verify |= VERIFY_BRIEF;
-#ifdef DEBUG
+#if DEBUG
else if (c != 'p')
abort();
#endif
@@ -4907,7 +4908,7 @@ expari(int quotes)
while (*p != CTLARI) {
p--;
-#ifdef DEBUG
+#if DEBUG
if (p < start) {
sh_error("missing CTLARI (shouldn't happen)");
}
@@ -5100,7 +5101,7 @@ subevalvar(char *p, char *str, int strloc, int subtype, int startloc, int varfla
}
subtype -= VSTRIMRIGHT;
-#ifdef DEBUG
+#if DEBUG
if (subtype < 0 || subtype > 3)
abort();
#endif
@@ -5223,7 +5224,7 @@ record:
goto end;
}
-#ifdef DEBUG
+#if DEBUG
switch (subtype) {
case VSTRIMLEFT:
case VSTRIMLEFTMAX:
@@ -6460,7 +6461,7 @@ set_curjob(struct job *jp, unsigned mode)
jpp = curp;
switch (mode) {
default:
-#ifdef DEBUG
+#if DEBUG
abort();
#endif
case CUR_DELETE:
@@ -6581,7 +6582,7 @@ usage:
while ((c = nextopt("ls:")) != '\0')
switch (c) {
default:
-#ifdef DEBUG
+#if DEBUG
abort();
#endif
case 'l':
@@ -6647,7 +6648,7 @@ usage:
}
#endif /* JOBS */
-#if defined(JOBS) || defined(DEBUG)
+#if defined(JOBS) || DEBUG
static int
jobno(const struct job *jp)
{
@@ -7827,7 +7828,7 @@ chkmail(void)
if (*p == '\0')
continue;
for (q = p ; *q ; q++);
-#ifdef DEBUG
+#if DEBUG
if (q[-1] != '/')
abort();
#endif
@@ -7921,7 +7922,7 @@ ash_main(int argc, char **argv)
goto state4;
}
handler = &jmploc;
-#ifdef DEBUG
+#if DEBUG
opentrace();
trputs("Shell args: "); trargs(argv);
#endif
@@ -7988,7 +7989,7 @@ state4: /* XXX ??? - why isn't this before the "if" statement */
#if PROFILE
monitor(0);
#endif
-#if GPROF
+#ifdef GPROF
{
extern void _mcleanup(void);
_mcleanup();
@@ -8266,7 +8267,7 @@ stalloc(size_t nbytes)
void
stunalloc(pointer p)
{
-#ifdef DEBUG
+#if DEBUG
if (!p || (stacknxt < (char *)p) || ((char *)p < stackp->space)) {
write(2, "stunalloc\n", 10);
abort();
@@ -8844,7 +8845,7 @@ setarg0:
void
optschanged(void)
{
-#ifdef DEBUG
+#if DEBUG
opentrace();
#endif
setinteractive(iflag);
@@ -9913,7 +9914,7 @@ static int
readtoken(void)
{
int t;
-#ifdef DEBUG
+#if DEBUG
int alreadyseen = tokpushback;
#endif
@@ -9963,7 +9964,7 @@ top:
}
out:
checkkwd = 0;
-#ifdef DEBUG
+#if DEBUG
if (!alreadyseen)
TRACE(("token %s %s\n", tokname(t), t == TWORD ? wordtext : ""));
else
@@ -11053,7 +11054,7 @@ openredirect(union node *redir)
goto ecreate;
break;
default:
-#ifdef DEBUG
+#if DEBUG
abort();
#endif
/* Fall through to eliminate warning. */
@@ -11255,7 +11256,7 @@ redirectsafe(union node *redir, int flags)
/* show.c */
-#ifdef DEBUG
+#if DEBUG
static void shtree(union node *, int, char *, FILE*);
static void shcmd(union node *, FILE *);
static void sharg(union node *, FILE *);
@@ -11714,7 +11715,7 @@ setsignal(int signo)
action = S_CATCH;
break;
case SIGQUIT:
-#ifdef DEBUG
+#if DEBUG
if (debug)
break;
#endif
@@ -13659,7 +13660,7 @@ static arith_t arith (const char *expr, int *perrcode)
#endif /* CONFIG_ASH_MATH_SUPPORT */
-#ifdef DEBUG
+#if DEBUG
const char *applet_name = "debug stuff usage";
int main(int argc, char **argv)
{