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ifplugd: simplify run_script()

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function                                             old     new   delta
packed_usage                                       26505   26518     +13
run_script                                           158     112     -46

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2010-01-06 12:27:18 +01:00
parent aa4977d8e5
commit 79ae534ac7
2 changed files with 15 additions and 21 deletions
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12
include/usage.h
View File

@ -130,7 +130,7 @@
"Options:" \
"\n -v VAR=VAL Set variable" \
"\n -F SEP Use SEP as field separator" \
"\n -f FILE Read program from file" \
"\n -f FILE Read program from FILE" \
#define basename_trivial_usage \
"FILE [SUFFIX]"
@ -291,7 +291,7 @@
"chat '' ATZ OK ATD123456 CONNECT '' ogin: pppuser word: ppppass '~'" \
#define chattr_trivial_usage \
"[-R] [-+=AacDdijsStTu] [-v version] files..."
"[-R] [-+=AacDdijsStTu] [-v VERSION] [FILE]..."
#define chattr_full_usage "\n\n" \
"Change file attributes on an ext2 fs\n" \
"\nModifiers:" \
@ -4777,9 +4777,9 @@
"\n -H,-h,--hostname=HOSTNAME Client hostname" \
"\n -c,--clientid=CLIENTID Client identifier" \
"\n -C,--clientid-none Suppress default client identifier" \
"\n -p,--pidfile=file Create pidfile" \
"\n -p,--pidfile=FILE Create pidfile" \
"\n -r,--request=IP IP address to request" \
"\n -s,--script=file Run file at DHCP events (default "CONFIG_UDHCPC_DEFAULT_SCRIPT")" \
"\n -s,--script=FILE Run FILE at DHCP events (default "CONFIG_UDHCPC_DEFAULT_SCRIPT")" \
"\n -t,--retries=N Send up to N discover packets" \
"\n -T,--timeout=N Pause between packets (default 3 seconds)" \
"\n -A,--tryagain=N Wait N seconds (default 20) after failure" \
@ -4806,9 +4806,9 @@
"\n -H,-h HOSTNAME Client hostname" \
"\n -c CLIENTID Client identifier" \
"\n -C Suppress default client identifier" \
"\n -p file Create pidfile" \
"\n -p FILE Create pidfile" \
"\n -r IP IP address to request" \
"\n -s file Run file at DHCP events (default "CONFIG_UDHCPC_DEFAULT_SCRIPT")" \
"\n -s FILE Run FILE at DHCP events (default "CONFIG_UDHCPC_DEFAULT_SCRIPT")" \
"\n -t N Send up to N request packets" \
"\n -T N Try to get a lease for N seconds (default 3)" \
"\n -A N Wait N seconds (default 20) after failure" \

24
networking/ifplugd.c
View File

@ -119,29 +119,23 @@ struct globals {
static int run_script(const char *action)
{
pid_t pid;
char *argv[5];
int r;
bb_error_msg("executing '%s %s %s'", G.script_name, G.iface, action);
#if 1
pid = vfork();
if (pid < 0) {
bb_perror_msg("fork");
return -1;
}
if (pid == 0) {
/* child */
execlp(G.script_name, G.script_name, G.iface, action, G.extra_arg, NULL);
bb_perror_msg_and_die("can't execute '%s'", G.script_name);
}
argv[0] = (char*) G.script_name;
argv[1] = (char*) G.iface;
argv[2] = (char*) action;
argv[3] = (char*) G.extra_arg;
argv[4] = NULL;
/* parent */
wait(&r);
r = WEXITSTATUS(r);
/* r < 0 - can't exec, 0 <= r < 1000 - exited, >1000 - killed by sig (r-1000) */
r = wait4pid(spawn(argv));
bb_error_msg("exit code: %u", r);
bb_error_msg("exit code: %d", r);
return (option_mask32 & FLAG_IGNORE_RETVAL) ? 0 : r;
#else /* insanity */