qemu-helper-native: showing help shouldn't be an error

Displaying a help message if help was requested isn't an error.

(From OE-Core rev: a1d9cfef7f247d616cd6ca482916ad0469e4fc58)

Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Ross Burton
2019-10-14 15:08:43 +01:00
committed by Richard Purdie
parent 6c50928df6
commit c1fbd56f01

View File

@@ -19,7 +19,7 @@
#define TUNSETGROUP _IOW('T', 206, int)
#endif
static void Usage(char *name)
static void Usage(char *name, int status)
{
fprintf(stderr, "Create: %s [-b] [-u owner] [-g group] [-t device-name] "
"[-f tun-clone-device]\n", name);
@@ -28,7 +28,7 @@ static void Usage(char *name)
fprintf(stderr, "The default tun clone device is /dev/net/tun - some systems"
" use\n/dev/misc/net/tun instead\n\n");
fprintf(stderr, "-b will result in brief output (just the device name)\n");
exit(1);
exit(status);
}
int main(int argc, char **argv)
@@ -63,7 +63,7 @@ int main(int argc, char **argv)
if(*end != '\0'){
fprintf(stderr, "'%s' is neither a username nor a numeric uid.\n",
optarg);
Usage(name);
Usage(name, 1);
}
break;
case 'g':
@@ -76,7 +76,7 @@ int main(int argc, char **argv)
if(*end != '\0'){
fprintf(stderr, "'%s' is neither a groupname nor a numeric group.\n",
optarg);
Usage(name);
Usage(name, 1);
}
break;
@@ -84,8 +84,10 @@ int main(int argc, char **argv)
tun = optarg;
break;
case 'h':
Usage(name, 0);
break;
default:
Usage(name);
Usage(name, 1);
}
}
@@ -93,7 +95,7 @@ int main(int argc, char **argv)
argc -= optind;
if(argc > 0)
Usage(name);
Usage(name, 1);
if((tap_fd = open(file, O_RDWR)) < 0){
fprintf(stderr, "Failed to open '%s' : ", file);