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tools: use a custom error function

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Wrap the fprintf calls into something consistent.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This commit is contained in:
Peter Hutterer
2015-08-19 12:22:01 +10:00
parent f9a6b5ff3c
commit 5d609de747
1 changed files with 20 additions and 7 deletions
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27
tools/ratbag-command.c
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@@ -43,6 +43,19 @@ enum cmd_flags {
FLAG_VERBOSE = 1 << 0,
};
LIBRATBAG_ATTRIBUTE_PRINTF(1, 2)
static inline void
error(const char *format, ...)
{
va_list args;
fprintf(stderr, "Error: ");
va_start(args, format);
vfprintf(stderr, format, args);
va_end(args);
}
static void
usage(void)
{
@@ -67,7 +80,7 @@ udev_device_from_path(struct udev *udev, const char *path)
if (strncmp(path, event_node_prefix, strlen(event_node_prefix)) == 0) {
struct stat st;
if (stat(path, &st) == -1) {
fprintf(stderr, "Failed to stat '%s': %s\n", path, strerror(errno));
error("Failed to stat '%s': %s\n", path, strerror(errno));
return NULL;
}
udev_device = udev_device_new_from_devnum(udev, 'c', st.st_rdev);
@@ -76,7 +89,7 @@ udev_device_from_path(struct udev *udev, const char *path)
udev_device = udev_device_new_from_syspath(udev, path);
}
if (!udev_device) {
fprintf(stderr, "Can't open '%s': %s\n", path, strerror(errno));
error("Can't open '%s': %s\n", path, strerror(errno));
return NULL;
}
@@ -109,11 +122,11 @@ ratbag_cmd_info(struct ratbag *ratbag, uint32_t flags, int argc, char **argv)
rb = ratbag_device_new_from_udev_device(ratbag, udev_device);
if (!rb) {
fprintf(stderr, "Looks like '%s' is not supported\n", path);
error("Looks like '%s' is not supported\n", path);
goto out;
}
fprintf(stderr, "Opened '%s' (%s).\n", ratbag_device_get_name(rb), path);
error("Opened '%s' (%s).\n", ratbag_device_get_name(rb), path);
profile = ratbag_device_get_profile_by_index(rb, 0);
ratbag_device_set_active_profile(rb, profile);
@@ -154,7 +167,7 @@ open_restricted(const char *path, int flags, void *user_data)
int fd = open(path, flags);
if (fd < 0)
fprintf(stderr, "Failed to open %s (%s)\n",
error("Failed to open %s (%s)\n",
path, strerror(errno));
return fd < 0 ? -errno : fd;
@@ -182,7 +195,7 @@ main(int argc, char **argv)
ratbag = ratbag_create_context(&interface, NULL);
if (!ratbag) {
fprintf(stderr, "Can't initialize ratbag\n");
error("Can't initialize ratbag\n");
goto out;
}
@@ -231,7 +244,7 @@ main(int argc, char **argv)
goto out;
}
fprintf(stderr, "Invalid command '%s'\n", command);
error("Invalid command '%s'\n", command);
usage();
rc = 1;