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Create backup of duplicate log file instead of deleting it

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This case should never occur, but just in case it does it's good to handle it
without any data loss
This commit is contained in:
jfreegman 2020-11-18 17:19:08 -05:00
parent 53a7530e8a
commit 0554bf0240
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GPG Key ID: 3627F3144076AE63
1 changed files with 9 additions and 2 deletions
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11
src/log.c
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@ -358,8 +358,15 @@ int rename_logfile(const char *src, const char *dest, const char *selfkey, const
}
if (file_exists(newpath)) {
if (remove(oldpath) != 0) {
fprintf(stderr, "Failed to remove old path `%s`\n", oldpath);
char new_backup[MAX_STR_SIZE + 4];
snprintf(new_backup, sizeof(new_backup), "%s.old", newpath);
if (file_exists(new_backup)) {
goto on_error;
}
if (rename(newpath, new_backup) != 0) {
goto on_error;
}
} else {
if (rename(oldpath, newpath) != 0) {