diff options
| -rw-r--r-- | Makefile | 3 | ||||
| -rw-r--r-- | networking/ifupdown.c | 25 |
2 files changed, 16 insertions, 12 deletions
@@ -573,7 +573,8 @@ ifdef CONFIG_STATIC -Wl,--warn-common -Wl,--sort-common -Wl,--gc-sections \ -Wl,--start-group $(busybox-all) -Wl,--end-group else - cmd_busybox__ ?= $(srctree)/scripts/trylink $(CC) -o $@ $(LDFLAGS) \ + cmd_busybox__ ?= $(srctree)/scripts/trylink $(CC) $(LDFLAGS) \ + -o $@ \ -Wl,--warn-common -Wl,--sort-common -Wl,--gc-sections \ -Wl,--start-group $(busybox-all) -Wl,--end-group endif diff --git a/networking/ifupdown.c b/networking/ifupdown.c index 93d7bc5..90c0544 100644 --- a/networking/ifupdown.c +++ b/networking/ifupdown.c @@ -103,7 +103,7 @@ enum { #define FORCE (option_mask32 & OPT_force) #define NO_MAPPINGS (option_mask32 & OPT_no_mappings) -static char **__myenviron; +static char **my_environ; static char *startup_PATH; @@ -187,7 +187,7 @@ static char *parse(const char *command, struct interface_defn_t *ifd) size_t old_pos[MAX_OPT_DEPTH] = { 0 }; int okay[MAX_OPT_DEPTH] = { 1 }; int opt_depth = 1; - char *result = xstrdup(""); + char *result = NULL; while (*command) { switch (*command) { @@ -206,7 +206,7 @@ static char *parse(const char *command, struct interface_defn_t *ifd) break; case '[': if (command[1] == '[' && opt_depth < MAX_OPT_DEPTH) { - old_pos[opt_depth] = strlen(result); + old_pos[opt_depth] = result ? strlen(result) : 0; okay[opt_depth] = 1; opt_depth++; command += 2; @@ -290,7 +290,7 @@ static int execute(const char *command, struct interface_defn_t *ifd, execfn *ex int ret; out = parse(command, ifd); - if (!out || !out[0]) { + if (!out) { return 0; } ret = (*exec)(out); @@ -871,15 +871,15 @@ static void set_environ(struct interface_defn_t *iface, const char *mode) const int n_env_entries = iface->n_options + 5; char **ppch; - if (__myenviron != NULL) { - for (ppch = __myenviron; *ppch; ppch++) { + if (my_environ != NULL) { + for (ppch = my_environ; *ppch; ppch++) { free(*ppch); *ppch = NULL; } - free(__myenviron); + free(my_environ); } - __myenviron = xzalloc(sizeof(char *) * (n_env_entries + 1 /* for final NULL */ )); - environend = __myenviron; + my_environ = xzalloc(sizeof(char *) * (n_env_entries + 1 /* for final NULL */ )); + environend = my_environ; for (i = 0; i < iface->n_options; i++) { if (strcmp(iface->option[i].name, "up") == 0 @@ -903,6 +903,9 @@ static int doit(char *str) if (option_mask32 & (OPT_no_act|OPT_verbose)) { puts(str); } + /* FIXME: is it true that we can reach this place with str = ""? */ + /* how? in execute() parse() may return "", then we do (*exec)(""); */ + /* Please add a comment... */ if (!(option_mask32 & OPT_no_act)) { pid_t child; int status; @@ -912,7 +915,7 @@ static int doit(char *str) case -1: /* failure */ return 0; case 0: /* child */ - execle(DEFAULT_SHELL, DEFAULT_SHELL, "-c", str, NULL, __myenviron); + execle(DEFAULT_SHELL, DEFAULT_SHELL, "-c", str, NULL, my_environ); exit(127); } waitpid(child, &status, 0); @@ -1206,7 +1209,7 @@ int ifupdown_main(int argc, char **argv) okay = 1; currif->iface = iface; - debug_noise("\nZ Configuring interface %s (%s)\n", liface, currif->address_family->name); + debug_noise("\nConfiguring interface %s (%s)\n", liface, currif->address_family->name); /* Call the cmds function pointer, does either iface_up() or iface_down() */ cmds_ret = cmds(currif); |