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authorDenis Vlasenko <vda.linux@googlemail.com>2008-03-17 09:33:45 +0000
committerDenis Vlasenko <vda.linux@googlemail.com>2008-03-17 09:33:45 +0000
commitd0a071a5281f8ba4b291f0c3beb74bee1f8df6a3 (patch)
tree37e443b155eb66fed37e889828fa60023c84010f
parentb44c790e41e281965955a83408f35ea53ecdb3d2 (diff)
downloadbusybox-d0a071a5281f8ba4b291f0c3beb74bee1f8df6a3.tar.gz
brctl: eliminate stray data object
brctl: use constant fd to reduce parameter passing runsvdir: do not use data/bss od: reuse bb_argv_dash last: do not go into endless loop on read error mount: make it not fail scripts/find_bad_common_bufsiz check dc: add INIT_G() (no-op for dc, but we want uniform usage of "G trick") function old new delta runsvdir_main 1646 1672 +26 set_pgrp 1 - -1 exitsoon 1 - -1 check 679 678 -1 svnum 4 - -4 svdir 4 - -4 sv 4 - -4 stamplog 4 - -4 rploglen 4 - -4 rplog 4 - -4 mount_main 995 988 -7 static.default_file_list 8 - -8 pfd 8 - -8 logpipe 8 - -8 static.info 20 - -20 brctl_main 767 739 -28 ------------------------------------------------------------------------------ (add/remove: 0/12 grow/shrink: 1/3 up/down: 26/-106) Total: -80 bytes text data bss dec hex filename 793327 662 7412 801401 c3a79 busybox_old 793329 641 7372 801342 c3a3e busybox_unstripped
-rw-r--r--coreutils/od_bloaty.c3
-rw-r--r--miscutils/dc.c4
-rw-r--r--miscutils/last.c17
-rw-r--r--networking/brctl.c69
-rw-r--r--runit/runsvdir.c41
-rw-r--r--util-linux/mount.c9
6 files changed, 85 insertions, 58 deletions
diff --git a/coreutils/od_bloaty.c b/coreutils/od_bloaty.c
index 4526f0ede..dce2349a3 100644
--- a/coreutils/od_bloaty.c
+++ b/coreutils/od_bloaty.c
@@ -1177,7 +1177,6 @@ dump_strings(off_t address, off_t end_offset)
int od_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int od_main(int argc, char **argv)
{
- static char const *const default_file_list[] = { "-", NULL };
static const struct suffix_mult bkm[] = {
{ "b", 512 },
{ "k", 1024 },
@@ -1383,7 +1382,7 @@ int od_main(int argc, char **argv)
/* If no files were listed on the command line,
set the global pointer FILE_LIST so that it
references the null-terminated list of one name: "-". */
- file_list = default_file_list;
+ file_list = bb_argv_dash;
if (argc > 0) {
/* Set the global pointer FILE_LIST so that it
references the first file-argument on the command-line. */
diff --git a/miscutils/dc.c b/miscutils/dc.c
index 68ecd8a3f..612937556 100644
--- a/miscutils/dc.c
+++ b/miscutils/dc.c
@@ -19,6 +19,8 @@ enum { STACK_SIZE = (COMMON_BUFSIZE - offsetof(struct globals, stack)) / sizeof(
#define pointer (G.pointer )
#define base (G.base )
#define stack (G.stack )
+#define INIT_G() do { \
+} while (0)
static void push(double a)
@@ -194,6 +196,8 @@ static char *get_token(char **buffer)
int dc_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int dc_main(int argc ATTRIBUTE_UNUSED, char **argv)
{
+ INIT_G();
+
argv++;
if (!argv[0]) {
/* take stuff from stdin if no args are given */
diff --git a/miscutils/last.c b/miscutils/last.c
index f46d4ca0c..f823a1385 100644
--- a/miscutils/last.c
+++ b/miscutils/last.c
@@ -39,9 +39,8 @@ int last_main(int argc, char **argv ATTRIBUTE_UNUSED)
file = xopen(bb_path_wtmp_file, O_RDONLY);
printf("%-10s %-14s %-18s %-12.12s %s\n", "USER", "TTY", "HOST", "LOGIN", "TIME");
- while ((n = safe_read(file, (void*)&ut, sizeof(struct utmp))) != 0) {
-
- if (n != sizeof(struct utmp)) {
+ while ((n = full_read(file, &ut, sizeof(ut))) > 0) {
+ if (n != sizeof(ut)) {
bb_perror_msg_and_die("short read");
}
@@ -53,16 +52,14 @@ int last_main(int argc, char **argv ATTRIBUTE_UNUSED)
else if (strncmp(ut.ut_user, "runlevel", 7) == 0)
ut.ut_type = RUN_LVL;
} else {
- if (!ut.ut_name[0] || strcmp(ut.ut_name, "LOGIN") == 0 ||
- ut.ut_name[0] == 0)
- {
+ if (ut.ut_name[0] == '\0' || strcmp(ut.ut_name, "LOGIN") == 0) {
/* Don't bother. This means we can't find how long
* someone was logged in for. Oh well. */
continue;
}
- if (ut.ut_type != DEAD_PROCESS &&
- ut.ut_name[0] && ut.ut_line[0])
- {
+ if (ut.ut_type != DEAD_PROCESS
+ && ut.ut_name[0] && ut.ut_line[0]
+ ) {
ut.ut_type = USER_PROCESS;
}
if (strcmp(ut.ut_name, "date") == 0) {
@@ -71,7 +68,7 @@ int last_main(int argc, char **argv ATTRIBUTE_UNUSED)
}
}
- if (ut.ut_type!=USER_PROCESS) {
+ if (ut.ut_type != USER_PROCESS) {
switch (ut.ut_type) {
case OLD_TIME:
case NEW_TIME:
diff --git a/networking/brctl.c b/networking/brctl.c
index bbd14c471..2bb03dd82 100644
--- a/networking/brctl.c
+++ b/networking/brctl.c
@@ -33,13 +33,15 @@
#if ENABLE_FEATURE_BRCTL_FANCY
#include <linux/if_bridge.h>
+
/* FIXME: These 4 funcs are not really clean and could be improved */
-static inline ALWAYS_INLINE void strtotimeval(struct timeval *tv,
- const char *time_str)
+static ALWAYS_INLINE void strtotimeval(struct timeval *tv,
+ const char *time_str)
{
double secs;
#if BRCTL_USE_INTERNAL
- if (!(secs = /*bb_*/strtod(time_str, NULL)))
+ secs = /*bb_*/strtod(time_str, NULL);
+ if (!secs)
#else
if (sscanf(time_str, "%lf", &secs) != 1)
#endif
@@ -48,7 +50,7 @@ static inline ALWAYS_INLINE void strtotimeval(struct timeval *tv,
tv->tv_usec = 1000000 * (secs - tv->tv_sec);
}
-static inline ALWAYS_INLINE unsigned long __tv_to_jiffies(const struct timeval *tv)
+static ALWAYS_INLINE unsigned long __tv_to_jiffies(const struct timeval *tv)
{
unsigned long long jif;
@@ -56,7 +58,7 @@ static inline ALWAYS_INLINE unsigned long __tv_to_jiffies(const struct timeval *
return jif/10000;
}
-# if 00
+# if 0
static void __jiffies_to_tv(struct timeval *tv, unsigned long jiffies)
{
unsigned long long tvusec;
@@ -74,7 +76,7 @@ static unsigned long str_to_jiffies(const char *time_str)
}
static void arm_ioctl(unsigned long *args,
- unsigned long arg0, unsigned long arg1, unsigned long arg2)
+ unsigned long arg0, unsigned long arg1, unsigned long arg2)
{
args[0] = arg0;
args[1] = arg1;
@@ -84,10 +86,9 @@ static void arm_ioctl(unsigned long *args,
#endif
-int brctl_main(int argc ATTRIBUTE_UNUSED, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int brctl_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int brctl_main(int argc ATTRIBUTE_UNUSED, char **argv)
{
- int fd;
static const char keywords[] ALIGN1 =
"addbr\0" "delbr\0" "addif\0" "delif\0"
USE_FEATURE_BRCTL_FANCY(
@@ -96,16 +97,19 @@ int brctl_main(int argc ATTRIBUTE_UNUSED, char **argv)
"setpathcost\0" "setportprio\0" "setbridgeprio\0"
)
USE_FEATURE_BRCTL_SHOW("showmacs\0" "show\0");
+
enum { ARG_addbr = 0, ARG_delbr, ARG_addif, ARG_delif
USE_FEATURE_BRCTL_FANCY(,
ARG_stp,
ARG_setageing, ARG_setfd, ARG_sethello, ARG_setmaxage,
ARG_setpathcost, ARG_setportprio, ARG_setbridgeprio
)
- USE_FEATURE_BRCTL_SHOW(, ARG_showmacs, ARG_show) };
+ USE_FEATURE_BRCTL_SHOW(, ARG_showmacs, ARG_show)
+ };
+
+ int fd;
smallint key;
struct ifreq ifr;
- static char info[] = "bridge %s\0 iface %s";
char *br, *brif;
#if ENABLE_FEATURE_BRCTL_FANCY
unsigned long args[4] = {0, 0, 0, 0};
@@ -125,25 +129,26 @@ int brctl_main(int argc ATTRIBUTE_UNUSED, char **argv)
}
#endif
fd = xsocket(AF_INET, SOCK_STREAM, 0);
- br = *(argv++);
+ br = *argv++;
if (key == ARG_addbr || key == ARG_delbr) { /* addbr or delbr */
ioctl_or_perror_and_die(fd,
- key == ARG_addbr ? SIOCBRADDBR : SIOCBRDELBR,
- br, info, br);
+ key == ARG_addbr ? SIOCBRADDBR : SIOCBRDELBR,
+ br, "bridge %s", br);
goto done;
}
if (!*argv) /* all but 'show' need at least one argument */
bb_show_usage();
safe_strncpy(ifr.ifr_name, br, IFNAMSIZ);
if (key == ARG_addif || key == ARG_delif) { /* addif or delif */
- brif = *(argv++);
- if (!(ifr.ifr_ifindex = if_nametoindex(brif))) {
- bb_perror_msg_and_die(info+11, brif);
+ brif = *argv++;
+ ifr.ifr_ifindex = if_nametoindex(brif);
+ if (!ifr.ifr_ifindex) {
+ bb_perror_msg_and_die("iface %s", brif);
}
ioctl_or_perror_and_die(fd,
- key == ARG_addif ? SIOCBRADDIF : SIOCBRDELIF,
- &ifr, info, br);
+ key == ARG_addif ? SIOCBRADDIF : SIOCBRDELIF,
+ &ifr, "bridge %s", br);
goto done;
}
#if ENABLE_FEATURE_BRCTL_FANCY
@@ -156,11 +161,10 @@ int brctl_main(int argc ATTRIBUTE_UNUSED, char **argv)
}
if ((unsigned)(key - ARG_stp) < 5) { /* time related ops */
unsigned long op = (key == ARG_setageing) ? BRCTL_SET_AGEING_TIME :
- (key == ARG_setfd) ? BRCTL_SET_BRIDGE_FORWARD_DELAY:
- (key == ARG_sethello) ? BRCTL_SET_BRIDGE_HELLO_TIME:
- (key == ARG_setmaxage) ? BRCTL_SET_BRIDGE_MAX_AGE :
- -1/* will never be used */;
- arm_ioctl(args, op, str_to_jiffies (*argv), 0);
+ (key == ARG_setfd) ? BRCTL_SET_BRIDGE_FORWARD_DELAY :
+ (key == ARG_sethello) ? BRCTL_SET_BRIDGE_HELLO_TIME :
+ /*key == ARG_setmaxage*/ BRCTL_SET_BRIDGE_MAX_AGE;
+ arm_ioctl(args, op, str_to_jiffies(*argv), 0);
goto fire;
}
port = -1;
@@ -168,25 +172,28 @@ int brctl_main(int argc ATTRIBUTE_UNUSED, char **argv)
int ifidx[MAX_PORTS];
unsigned i;
- if (!(port = if_nametoindex(*argv)))
+ port = if_nametoindex(*argv);
+ if (!port)
bb_error_msg_and_die(bb_msg_invalid_arg, *argv, "port");
argv++;
memset(ifidx, 0, sizeof ifidx);
arm_ioctl(args, BRCTL_GET_PORT_LIST, (unsigned long)ifidx,
MAX_PORTS);
xioctl(fd, SIOCDEVPRIVATE, &ifr);
- for (i = 0; i < MAX_PORTS; i++)
+ for (i = 0; i < MAX_PORTS; i++) {
if (ifidx[i] == port) {
port = i;
break;
}
+ }
}
if (key == ARG_setpathcost
- || key == ARG_setportprio || key == ARG_setbridgeprio) {
+ || key == ARG_setportprio
+ || key == ARG_setbridgeprio
+ ) {
unsigned long op = (key == ARG_setpathcost) ? BRCTL_SET_PATH_COST :
- (key == ARG_setportprio) ? BRCTL_SET_PORT_PRIORITY :
- (key == ARG_setbridgeprio) ? BRCTL_SET_BRIDGE_PRIORITY :
- -1/* will never be used */;
+ (key == ARG_setportprio) ? BRCTL_SET_PORT_PRIORITY :
+ /*key == ARG_setbridgeprio*/ BRCTL_SET_BRIDGE_PRIORITY;
unsigned long arg1 = port;
unsigned long arg2;
# if BRCTL_USE_INTERNAL
@@ -194,7 +201,7 @@ int brctl_main(int argc ATTRIBUTE_UNUSED, char **argv)
# else
if (sscanf(*argv, "%i", &tmp) != 1)
bb_error_msg_and_die(bb_msg_invalid_arg, *argv,
- key == ARG_setpathcost ? "cost" : "prio");
+ key == ARG_setpathcost ? "cost" : "prio");
# endif
if (key == ARG_setbridgeprio) {
arg1 = tmp;
@@ -212,6 +219,6 @@ int brctl_main(int argc ATTRIBUTE_UNUSED, char **argv)
if (ENABLE_FEATURE_CLEAN_UP)
close(fd);
}
-USE_FEATURE_BRCTL_SHOW(out:)
+ USE_FEATURE_BRCTL_SHOW(out:)
return EXIT_SUCCESS;
}
diff --git a/runit/runsvdir.c b/runit/runsvdir.c
index bca5c901c..32e4764d1 100644
--- a/runit/runsvdir.c
+++ b/runit/runsvdir.c
@@ -42,17 +42,34 @@ struct service {
smallint isgone;
};
-static struct service *sv;
-static char *svdir;
-static int svnum;
-static char *rplog;
-static int rploglen;
-static struct fd_pair logpipe;
-static struct pollfd pfd[1];
-static unsigned stamplog;
-static smallint check = 1;
-static smallint exitsoon;
-static smallint set_pgrp;
+struct globals {
+ struct service *sv;
+ char *svdir;
+ char *rplog;
+ int svnum;
+ int rploglen;
+ struct fd_pair logpipe;
+ struct pollfd pfd[1];
+ unsigned stamplog;
+ smallint check; /* = 1; */
+ smallint exitsoon;
+ smallint set_pgrp;
+};
+#define G (*(struct globals*)&bb_common_bufsiz1)
+#define sv (G.sv )
+#define svdir (G.svdir )
+#define rplog (G.rplog )
+#define svnum (G.svnum )
+#define rploglen (G.rploglen )
+#define logpipe (G.logpipe )
+#define pfd (G.pfd )
+#define stamplog (G.stamplog )
+#define check (G.check )
+#define exitsoon (G.exitsoon )
+#define set_pgrp (G.set_pgrp )
+#define INIT_G() do { \
+ check = 1; \
+} while (0)
static void fatal2_cannot(const char *m1, const char *m2)
{
@@ -222,6 +239,8 @@ int runsvdir_main(int argc ATTRIBUTE_UNUSED, char **argv)
char ch;
int i;
+ INIT_G();
+
argv++;
if (!*argv)
bb_show_usage();
diff --git a/util-linux/mount.c b/util-linux/mount.c
index a0e6cda73..d4a320756 100644
--- a/util-linux/mount.c
+++ b/util-linux/mount.c
@@ -214,9 +214,10 @@ struct globals {
unsigned verbose;
#endif
llist_t *fslist;
- char getmntent_buf[sizeof(bb_common_bufsiz1) - 8*3];
+ char getmntent_buf[1];
};
+enum { GETMNTENT_BUFSIZE = COMMON_BUFSIZE - offsetof(struct globals, getmntent_buf) };
#define G (*(struct globals*)&bb_common_bufsiz1)
#define nfs_mount_version (G.nfs_mount_version)
#if ENABLE_FEATURE_MOUNT_VERBOSE
@@ -1775,7 +1776,7 @@ int mount_main(int argc, char **argv)
if (!mountTable) bb_error_msg_and_die("no %s", bb_path_mtab_file);
while (getmntent_r(mountTable, &mtpair[0], getmntent_buf,
- sizeof(getmntent_buf)))
+ GETMNTENT_BUFSIZE))
{
// Don't show rootfs. FIXME: why??
// util-linux 2.12a happily shows rootfs...
@@ -1842,8 +1843,8 @@ int mount_main(int argc, char **argv)
// Get next fstab entry
if (!getmntent_r(fstab, mtcur, getmntent_buf
- + (mtcur==mtpair ? sizeof(getmntent_buf)/2 : 0),
- sizeof(getmntent_buf)/2))
+ + (mtcur==mtpair ? GETMNTENT_BUFSIZE/2 : 0),
+ GETMNTENT_BUFSIZE/2))
{
// Were we looking for something specific?