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d4-core
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Store generated uuid only if it can be safed successfully

pull/23/head
Gerard Wagener 2018-12-03 15:35:08 +01:00
parent cded3187f1
commit 82c67a4b31
1 changed files with 6 additions and 3 deletions
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9
client/d4.c
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@ -15,7 +15,9 @@
//
/*
* Generate a uuid if no one was set
* Generate a uuid if no one was set.
* If no errors occured textual representation of uuid is stored in the
* configuration array
*/
void d4_update_uuid(d4_t* d4)
{
@ -26,7 +28,6 @@ void d4_update_uuid(d4_t* d4)
if (d4->conf[UUID][0] == 0){
uuid_generate(uuid);
memcpy(d4->conf[UUID], uuid, SZUUID);
filename = calloc(1,2*FILENAME_MAX);
uuid_text = calloc(1, SZUUID_TEXT);
if ((filename != NULL) && (uuid != NULL)) {
@ -35,7 +36,9 @@ void d4_update_uuid(d4_t* d4)
if (fd > 0) {
uuid_unparse(uuid, uuid_text);
ret = write(fd, uuid_text, SZUUID_TEXT-1);
if (ret < 0) {
if (ret > 0) {
memcpy(d4->conf[UUID], uuid_text, SZUUID_TEXT);
} else {
d4->errno_copy = errno;
}
close(fd);