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sd-device: introduce device_has_db() helper function

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This commit is contained in:
Yu Watanabe
2023-11-22 13:05:26 +09:00
parent 91fd5e6bd2
commit 6e574ebd00
2 changed files with 14 additions and 0 deletions
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13
src/libsystemd/sd-device/device-private.c
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@@ -809,6 +809,19 @@ static int device_get_db_path(sd_device *device, char **ret) {
return 0;
}
int device_has_db(sd_device *device) {
_cleanup_free_ char *path = NULL;
int r;
assert(device);
r = device_get_db_path(device, &path);
if (r < 0)
return r;
return access(path, F_OK) >= 0;
}
int device_update_db(sd_device *device) {
_cleanup_(unlink_and_freep) char *path = NULL, *path_tmp = NULL;
_cleanup_fclose_ FILE *f = NULL;

1
src/libsystemd/sd-device/device-private.h
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@@ -59,6 +59,7 @@ int device_clone_with_db(sd_device *device, sd_device **ret);
int device_tag_index(sd_device *dev, sd_device *dev_old, bool add);
bool device_should_have_db(sd_device *device);
int device_has_db(sd_device *device);
int device_update_db(sd_device *device);
int device_delete_db(sd_device *device);
int device_read_db_internal_filename(sd_device *device, const char *filename); /* For fuzzer */