wlroots/util/uuid.c

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#include <uuid.h>
#include "util/uuid.h"
#if HAS_LIBUUID
bool generate_uuid(char out[static 37]) {
uuid_t uuid;
uuid_generate_random(uuid);
uuid_unparse(uuid, out);
return true;
}
#else
#include <string.h>
#include <stdlib.h>
bool generate_uuid(char out[static 37]) {
uuid_t uuid;
uint32_t status;
uuid_create(&uuid, &status);
if (status != uuid_s_ok) {
return false;
}
char *str;
uuid_to_string(&uuid, &str, &status);
if (status != uuid_s_ok) {
return false;
}
assert(strlen(str) + 1 == 37);
memcpy(out, str, sizeof(out));
free(str);
return true;
}
#endif