mirror of
https://github.com/sheumann/hush.git
synced 2024-12-25 18:33:06 +00:00
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
This commit is contained in:
Denis Vlasenko
parent
b44c790e41
commit
d0a071a528
@ -1177,7 +1177,6 @@ dump_strings(off_t address, off_t end_offset)
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int od_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int od_main(int argc, char **argv)
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{
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static char const *const default_file_list[] = { "-", NULL };
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static const struct suffix_mult bkm[] = {
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{ "b", 512 },
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{ "k", 1024 },
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@ -1383,7 +1382,7 @@ int od_main(int argc, char **argv)
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/* If no files were listed on the command line,
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set the global pointer FILE_LIST so that it
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references the null-terminated list of one name: "-". */
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file_list = default_file_list;
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file_list = bb_argv_dash;
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if (argc > 0) {
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/* Set the global pointer FILE_LIST so that it
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references the first file-argument on the command-line. */
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@ -19,6 +19,8 @@ enum { STACK_SIZE = (COMMON_BUFSIZE - offsetof(struct globals, stack)) / sizeof(
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#define pointer (G.pointer )
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#define base (G.base )
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#define stack (G.stack )
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#define INIT_G() do { \
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} while (0)
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static void push(double a)
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@ -194,6 +196,8 @@ static char *get_token(char **buffer)
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int dc_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int dc_main(int argc ATTRIBUTE_UNUSED, char **argv)
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{
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INIT_G();
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argv++;
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if (!argv[0]) {
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/* take stuff from stdin if no args are given */
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@ -39,9 +39,8 @@ int last_main(int argc, char **argv ATTRIBUTE_UNUSED)
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file = xopen(bb_path_wtmp_file, O_RDONLY);
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printf("%-10s %-14s %-18s %-12.12s %s\n", "USER", "TTY", "HOST", "LOGIN", "TIME");
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while ((n = safe_read(file, (void*)&ut, sizeof(struct utmp))) != 0) {
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if (n != sizeof(struct utmp)) {
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while ((n = full_read(file, &ut, sizeof(ut))) > 0) {
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if (n != sizeof(ut)) {
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bb_perror_msg_and_die("short read");
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}
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@ -53,16 +52,14 @@ int last_main(int argc, char **argv ATTRIBUTE_UNUSED)
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else if (strncmp(ut.ut_user, "runlevel", 7) == 0)
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ut.ut_type = RUN_LVL;
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} else {
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if (!ut.ut_name[0] || strcmp(ut.ut_name, "LOGIN") == 0 ||
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ut.ut_name[0] == 0)
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{
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if (ut.ut_name[0] == '\0' || strcmp(ut.ut_name, "LOGIN") == 0) {
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/* Don't bother. This means we can't find how long
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* someone was logged in for. Oh well. */
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continue;
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}
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if (ut.ut_type != DEAD_PROCESS &&
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ut.ut_name[0] && ut.ut_line[0])
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{
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if (ut.ut_type != DEAD_PROCESS
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&& ut.ut_name[0] && ut.ut_line[0]
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) {
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ut.ut_type = USER_PROCESS;
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}
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if (strcmp(ut.ut_name, "date") == 0) {
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@ -71,7 +68,7 @@ int last_main(int argc, char **argv ATTRIBUTE_UNUSED)
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}
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}
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if (ut.ut_type!=USER_PROCESS) {
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if (ut.ut_type != USER_PROCESS) {
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switch (ut.ut_type) {
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case OLD_TIME:
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case NEW_TIME:
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@ -33,13 +33,15 @@
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#if ENABLE_FEATURE_BRCTL_FANCY
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#include <linux/if_bridge.h>
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/* FIXME: These 4 funcs are not really clean and could be improved */
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static inline ALWAYS_INLINE void strtotimeval(struct timeval *tv,
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const char *time_str)
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static ALWAYS_INLINE void strtotimeval(struct timeval *tv,
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const char *time_str)
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{
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double secs;
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#if BRCTL_USE_INTERNAL
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if (!(secs = /*bb_*/strtod(time_str, NULL)))
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secs = /*bb_*/strtod(time_str, NULL);
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if (!secs)
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#else
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if (sscanf(time_str, "%lf", &secs) != 1)
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#endif
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@ -48,7 +50,7 @@ static inline ALWAYS_INLINE void strtotimeval(struct timeval *tv,
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tv->tv_usec = 1000000 * (secs - tv->tv_sec);
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}
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static inline ALWAYS_INLINE unsigned long __tv_to_jiffies(const struct timeval *tv)
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static ALWAYS_INLINE unsigned long __tv_to_jiffies(const struct timeval *tv)
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{
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unsigned long long jif;
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@ -56,7 +58,7 @@ static inline ALWAYS_INLINE unsigned long __tv_to_jiffies(const struct timeval *
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return jif/10000;
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}
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# if 00
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# if 0
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static void __jiffies_to_tv(struct timeval *tv, unsigned long jiffies)
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{
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unsigned long long tvusec;
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@ -74,7 +76,7 @@ static unsigned long str_to_jiffies(const char *time_str)
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}
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static void arm_ioctl(unsigned long *args,
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unsigned long arg0, unsigned long arg1, unsigned long arg2)
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unsigned long arg0, unsigned long arg1, unsigned long arg2)
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{
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args[0] = arg0;
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args[1] = arg1;
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@ -84,10 +86,9 @@ static void arm_ioctl(unsigned long *args,
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#endif
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int brctl_main(int argc ATTRIBUTE_UNUSED, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int brctl_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int brctl_main(int argc ATTRIBUTE_UNUSED, char **argv)
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{
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int fd;
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static const char keywords[] ALIGN1 =
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"addbr\0" "delbr\0" "addif\0" "delif\0"
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USE_FEATURE_BRCTL_FANCY(
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@ -96,16 +97,19 @@ int brctl_main(int argc ATTRIBUTE_UNUSED, char **argv)
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"setpathcost\0" "setportprio\0" "setbridgeprio\0"
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)
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USE_FEATURE_BRCTL_SHOW("showmacs\0" "show\0");
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enum { ARG_addbr = 0, ARG_delbr, ARG_addif, ARG_delif
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USE_FEATURE_BRCTL_FANCY(,
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ARG_stp,
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ARG_setageing, ARG_setfd, ARG_sethello, ARG_setmaxage,
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ARG_setpathcost, ARG_setportprio, ARG_setbridgeprio
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)
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USE_FEATURE_BRCTL_SHOW(, ARG_showmacs, ARG_show) };
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USE_FEATURE_BRCTL_SHOW(, ARG_showmacs, ARG_show)
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};
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int fd;
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smallint key;
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struct ifreq ifr;
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static char info[] = "bridge %s\0 iface %s";
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char *br, *brif;
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#if ENABLE_FEATURE_BRCTL_FANCY
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unsigned long args[4] = {0, 0, 0, 0};
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@ -125,25 +129,26 @@ int brctl_main(int argc ATTRIBUTE_UNUSED, char **argv)
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}
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#endif
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fd = xsocket(AF_INET, SOCK_STREAM, 0);
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br = *(argv++);
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br = *argv++;
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if (key == ARG_addbr || key == ARG_delbr) { /* addbr or delbr */
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ioctl_or_perror_and_die(fd,
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key == ARG_addbr ? SIOCBRADDBR : SIOCBRDELBR,
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br, info, br);
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key == ARG_addbr ? SIOCBRADDBR : SIOCBRDELBR,
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br, "bridge %s", br);
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goto done;
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}
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if (!*argv) /* all but 'show' need at least one argument */
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bb_show_usage();
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safe_strncpy(ifr.ifr_name, br, IFNAMSIZ);
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if (key == ARG_addif || key == ARG_delif) { /* addif or delif */
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brif = *(argv++);
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if (!(ifr.ifr_ifindex = if_nametoindex(brif))) {
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bb_perror_msg_and_die(info+11, brif);
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brif = *argv++;
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ifr.ifr_ifindex = if_nametoindex(brif);
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if (!ifr.ifr_ifindex) {
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bb_perror_msg_and_die("iface %s", brif);
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}
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ioctl_or_perror_and_die(fd,
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key == ARG_addif ? SIOCBRADDIF : SIOCBRDELIF,
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&ifr, info, br);
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key == ARG_addif ? SIOCBRADDIF : SIOCBRDELIF,
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&ifr, "bridge %s", br);
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goto done;
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}
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#if ENABLE_FEATURE_BRCTL_FANCY
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@ -156,11 +161,10 @@ int brctl_main(int argc ATTRIBUTE_UNUSED, char **argv)
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}
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if ((unsigned)(key - ARG_stp) < 5) { /* time related ops */
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unsigned long op = (key == ARG_setageing) ? BRCTL_SET_AGEING_TIME :
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(key == ARG_setfd) ? BRCTL_SET_BRIDGE_FORWARD_DELAY:
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(key == ARG_sethello) ? BRCTL_SET_BRIDGE_HELLO_TIME:
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(key == ARG_setmaxage) ? BRCTL_SET_BRIDGE_MAX_AGE :
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-1/* will never be used */;
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arm_ioctl(args, op, str_to_jiffies (*argv), 0);
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(key == ARG_setfd) ? BRCTL_SET_BRIDGE_FORWARD_DELAY :
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(key == ARG_sethello) ? BRCTL_SET_BRIDGE_HELLO_TIME :
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/*key == ARG_setmaxage*/ BRCTL_SET_BRIDGE_MAX_AGE;
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arm_ioctl(args, op, str_to_jiffies(*argv), 0);
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goto fire;
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}
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port = -1;
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@ -168,25 +172,28 @@ int brctl_main(int argc ATTRIBUTE_UNUSED, char **argv)
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int ifidx[MAX_PORTS];
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unsigned i;
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if (!(port = if_nametoindex(*argv)))
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port = if_nametoindex(*argv);
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if (!port)
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bb_error_msg_and_die(bb_msg_invalid_arg, *argv, "port");
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argv++;
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memset(ifidx, 0, sizeof ifidx);
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arm_ioctl(args, BRCTL_GET_PORT_LIST, (unsigned long)ifidx,
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MAX_PORTS);
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xioctl(fd, SIOCDEVPRIVATE, &ifr);
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for (i = 0; i < MAX_PORTS; i++)
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for (i = 0; i < MAX_PORTS; i++) {
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if (ifidx[i] == port) {
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port = i;
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break;
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}
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}
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}
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if (key == ARG_setpathcost
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|| key == ARG_setportprio || key == ARG_setbridgeprio) {
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|| key == ARG_setportprio
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|| key == ARG_setbridgeprio
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) {
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unsigned long op = (key == ARG_setpathcost) ? BRCTL_SET_PATH_COST :
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(key == ARG_setportprio) ? BRCTL_SET_PORT_PRIORITY :
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(key == ARG_setbridgeprio) ? BRCTL_SET_BRIDGE_PRIORITY :
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-1/* will never be used */;
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(key == ARG_setportprio) ? BRCTL_SET_PORT_PRIORITY :
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/*key == ARG_setbridgeprio*/ BRCTL_SET_BRIDGE_PRIORITY;
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unsigned long arg1 = port;
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unsigned long arg2;
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# if BRCTL_USE_INTERNAL
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@ -194,7 +201,7 @@ int brctl_main(int argc ATTRIBUTE_UNUSED, char **argv)
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# else
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if (sscanf(*argv, "%i", &tmp) != 1)
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bb_error_msg_and_die(bb_msg_invalid_arg, *argv,
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key == ARG_setpathcost ? "cost" : "prio");
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key == ARG_setpathcost ? "cost" : "prio");
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# endif
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if (key == ARG_setbridgeprio) {
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arg1 = tmp;
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@ -212,6 +219,6 @@ int brctl_main(int argc ATTRIBUTE_UNUSED, char **argv)
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if (ENABLE_FEATURE_CLEAN_UP)
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close(fd);
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}
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USE_FEATURE_BRCTL_SHOW(out:)
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USE_FEATURE_BRCTL_SHOW(out:)
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return EXIT_SUCCESS;
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}
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@ -42,17 +42,34 @@ struct service {
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smallint isgone;
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};
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static struct service *sv;
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static char *svdir;
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static int svnum;
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static char *rplog;
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static int rploglen;
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static struct fd_pair logpipe;
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static struct pollfd pfd[1];
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static unsigned stamplog;
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static smallint check = 1;
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static smallint exitsoon;
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static smallint set_pgrp;
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struct globals {
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struct service *sv;
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char *svdir;
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char *rplog;
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int svnum;
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int rploglen;
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struct fd_pair logpipe;
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struct pollfd pfd[1];
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unsigned stamplog;
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smallint check; /* = 1; */
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smallint exitsoon;
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smallint set_pgrp;
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};
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#define G (*(struct globals*)&bb_common_bufsiz1)
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#define sv (G.sv )
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#define svdir (G.svdir )
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#define rplog (G.rplog )
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#define svnum (G.svnum )
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#define rploglen (G.rploglen )
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#define logpipe (G.logpipe )
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#define pfd (G.pfd )
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#define stamplog (G.stamplog )
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#define check (G.check )
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#define exitsoon (G.exitsoon )
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#define set_pgrp (G.set_pgrp )
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#define INIT_G() do { \
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check = 1; \
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} while (0)
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static void fatal2_cannot(const char *m1, const char *m2)
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{
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@ -222,6 +239,8 @@ int runsvdir_main(int argc ATTRIBUTE_UNUSED, char **argv)
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char ch;
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int i;
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INIT_G();
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argv++;
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if (!*argv)
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bb_show_usage();
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@ -214,9 +214,10 @@ struct globals {
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unsigned verbose;
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#endif
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llist_t *fslist;
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char getmntent_buf[sizeof(bb_common_bufsiz1) - 8*3];
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char getmntent_buf[1];
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};
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enum { GETMNTENT_BUFSIZE = COMMON_BUFSIZE - offsetof(struct globals, getmntent_buf) };
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#define G (*(struct globals*)&bb_common_bufsiz1)
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#define nfs_mount_version (G.nfs_mount_version)
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#if ENABLE_FEATURE_MOUNT_VERBOSE
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@ -1775,7 +1776,7 @@ int mount_main(int argc, char **argv)
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if (!mountTable) bb_error_msg_and_die("no %s", bb_path_mtab_file);
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while (getmntent_r(mountTable, &mtpair[0], getmntent_buf,
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sizeof(getmntent_buf)))
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GETMNTENT_BUFSIZE))
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{
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// Don't show rootfs. FIXME: why??
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// util-linux 2.12a happily shows rootfs...
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@ -1842,8 +1843,8 @@ int mount_main(int argc, char **argv)
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// Get next fstab entry
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if (!getmntent_r(fstab, mtcur, getmntent_buf
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+ (mtcur==mtpair ? sizeof(getmntent_buf)/2 : 0),
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sizeof(getmntent_buf)/2))
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+ (mtcur==mtpair ? GETMNTENT_BUFSIZE/2 : 0),
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GETMNTENT_BUFSIZE/2))
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{
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// Were we looking for something specific?
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