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print usage of udevcontrol when no or invalid command is given

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This commit is contained in:
Tobias Klauser 2006-07-03 01:03:53 +02:00 committed by Kay Sievers
parent b879c303a7
commit f1e9ccb94d
1 changed files with 16 additions and 14 deletions
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30
udevcontrol.c
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@ -33,7 +33,6 @@
#include "udev.h"
#include "udevd.h"
/* global variables */
static int sock = -1;
static int udev_log = 0;
@ -51,6 +50,16 @@ void log_message (int priority, const char *format, ...)
}
#endif
static void usage(void)
{
printf("Usage: udevcontrol COMMAND\n"
" log_priority=<level> set the udev log level for the daemon\n"
" stop_exec_queue keep udevd from executing events, queue only\n"
" start_exec_queue execute events, flush queue\n"
" reload_rules reloads the rules files\n"
" max_childs=<N> maximum number of childs running at the same time\n"
" --help print this help text\n\n");
}
int main(int argc, char *argv[], char *envp[])
{
@ -72,6 +81,7 @@ int main(int argc, char *argv[], char *envp[])
if (argc < 2) {
fprintf(stderr, "missing command\n\n");
usage();
goto exit;
}
@ -100,23 +110,18 @@ int main(int argc, char *argv[], char *envp[])
*intval = atoi(val);
info("send max_childs=%i", *intval);
} else if (strcmp(arg, "help") == 0 || strcmp(arg, "--help") == 0 || strcmp(arg, "-h") == 0) {
printf("Usage: udevcontrol COMMAND\n"
" log_priority=<level> set the udev log level for the daemon\n"
" stop_exec_queue keep udevd from executing events, queue only\n"
" start_exec_queue execute events, flush queue\n"
" reload_rules reloads the rules files\n"
" max_childs=<N> maximum number of childs running at the same time\n"
" --help print this help text\n\n");
exit(0);
usage();
goto exit;
} else {
fprintf(stderr, "unknown option\n\n");
exit(1);
usage();
goto exit;
}
}
if (getuid() != 0) {
fprintf(stderr, "need to be root, exit\n\n");
exit(1);
goto exit;
}
sock = socket(AF_LOCAL, SOCK_DGRAM, 0);
@ -131,7 +136,6 @@ int main(int argc, char *argv[], char *envp[])
strcpy(&saddr.sun_path[1], UDEVD_SOCK_PATH);
addrlen = offsetof(struct sockaddr_un, sun_path) + strlen(saddr.sun_path+1) + 1;
retval = sendto(sock, &usend_msg, sizeof(usend_msg), 0, (struct sockaddr *)&saddr, addrlen);
if (retval == -1) {
err("error sending message: %s", strerror(errno));
@ -142,9 +146,7 @@ int main(int argc, char *argv[], char *envp[])
}
close(sock);
exit:
logging_close();
return retval;
}