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util: add support for generating UUIDs

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Co-authored-by: Jason Francis <cycl0ps@tuta.io>
This commit is contained in:
Ilia Bozhinov 2021-01-05 20:11:23 +01:00 • committed by Simon Ser
parent 3721dbfddb
commit bf4e2e0eac
7 changed files with 55 additions and 0 deletions
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8
util/meson.build
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@ -7,3 +7,11 @@ wlr_files += files(
'signal.c',
'time.c',
)
if uuid.found()
wlr_deps += uuid
add_project_arguments('-DHAS_LIBUUID=1', language: 'c')
else
add_project_arguments('-DHAS_LIBUUID=0', language: 'c')
endif
wlr_files += files('uuid.c')

33
util/uuid.c Normal file
View file

@ -0,0 +1,33 @@
#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