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Merge 20e158f076 into d403cbd25c

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Collin 2025-07-05 01:25:47 +05:30 committed by GitHub
parent d403cbd25c 20e158f076
commit 86a3d785b7
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GPG Key ID: B5690EEEBB952194
1 changed files with 17 additions and 14 deletions
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31
os/log.c
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@ -179,23 +179,26 @@ LogFilePrep(const char *fname, const char *backup, const char *idstring)
FatalError("Cannot allocate space for the log file name\n");
if (backup && *backup) {
struct stat buf;
int fd = open(logFileName, O_RDWR | O_NOFOLLOW);
if (fd != -1) {
struct stat buf;
if (fstat(fd, &buf) == 0 && S_ISREG(buf.st_mode)) {
char *suffix;
char *oldLog;
if (!stat(logFileName, &buf) && S_ISREG(buf.st_mode)) {
char *suffix;
char *oldLog;
if ((asprintf(&suffix, backup, idstring) == -1) ||
(asprintf(&oldLog, "%s%s", logFileName, suffix) == -1)) {
FatalError("Cannot allocate space for the log file name\n");
}
free(suffix);
if ((asprintf(&suffix, backup, idstring) == -1) ||
(asprintf(&oldLog, "%s%s", logFileName, suffix) == -1)) {
FatalError("Cannot allocate space for the log file name\n");
if (renameat(AT_FDCWD, logFileName, AT_FDCWD, oldLog) == -1) {
FatalError("Cannot move old log file \"%s\" to \"%s\"\n",
logFileName, oldLog);
}
free(oldLog);
}
free(suffix);
if (rename(logFileName, oldLog) == -1) {
FatalError("Cannot move old log file \"%s\" to \"%s\"\n",
logFileName, oldLog);
}
free(oldLog);
close(fd);
}
}
else {