snow/wireguard-tools
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wg: fix errno propagation and messages

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Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This commit is contained in:
Jason A. Donenfeld 2018-05-18 19:51:33 +02:00
parent 434bc616b2
commit a8654606c2
5 changed files with 8 additions and 9 deletions
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3
src/ipc.c
View file

@ -185,7 +185,7 @@ static int userspace_get_wireguard_interfaces(struct inflatable_buffer *buffer)
dir = opendir(SOCK_PATH);
if (!dir)
return errno == ENOENT ? 0 : errno;
return errno == ENOENT ? 0 : -errno;
while ((ent = readdir(dir))) {
len = strlen(ent->d_name);
if (len <= strlen(SOCK_SUFFIX))
@ -964,7 +964,6 @@ char *ipc_list_devices(void)
cleanup:
errno = -ret;
if (errno) {
perror("Error when trying to get a list of WireGuard interfaces");
free(buffer.buffer);
return NULL;
}

2
src/set.c
View file

@ -29,7 +29,7 @@ int set_main(int argc, char *argv[])
device->name[IFNAMSIZ - 1] = '\0';
if (ipc_set_device(device) != 0) {
perror("Unable to set device");
perror("Unable to modify interface");
goto cleanup;
}

2
src/setconf.c
View file

@ -51,7 +51,7 @@ int setconf_main(int argc, char *argv[])
device->name[IFNAMSIZ - 1] = '\0';
if (ipc_set_device(device) != 0) {
perror("Unable to set device");
perror("Unable to modify interface");
goto cleanup;
}

8
src/show.c
View file

@ -390,7 +390,7 @@ int show_main(int argc, char *argv[])
char *interfaces = ipc_list_devices(), *interface;
if (!interfaces) {
perror("Unable to get devices");
perror("Unable to list interfaces");
return 1;
}
interface = interfaces;
@ -398,7 +398,7 @@ int show_main(int argc, char *argv[])
struct wgdevice *device = NULL;
if (ipc_get_device(&device, interface) < 0) {
perror("Unable to get device");
perror("Unable to access interface");
continue;
}
if (argc == 3) {
@ -424,7 +424,7 @@ int show_main(int argc, char *argv[])
}
interfaces = ipc_list_devices();
if (!interfaces) {
perror("Unable to get devices");
perror("Unable to list interfaces");
return 1;
}
interface = interfaces;
@ -437,7 +437,7 @@ int show_main(int argc, char *argv[])
struct wgdevice *device = NULL;
if (ipc_get_device(&device, argv[1]) < 0) {
perror("Unable to get device");
perror("Unable to access interface");
return 1;
}
if (argc == 3) {

2
src/showconf.c
View file

@ -32,7 +32,7 @@ int showconf_main(int argc, char *argv[])
}
if (ipc_get_device(&device, argv[1])) {
perror("Unable to get device");
perror("Unable to access interface");
goto cleanup;
}