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Check return value of chmod() and fcntl()

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Miroslav Lichvar
2014-06-06 12:07:31 +02:00
parent 9b630a0664
commit a8693a21f8
4 changed files with 15 additions and 9 deletions
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8
rtc_linux.c
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@@ -508,10 +508,12 @@ write_coefs_to_file(int valid,time_t ref_time,double offset,double rate)
/* Clone the file attributes from the existing file if there is one. */
if (!stat(coefs_file_name,&buf)) {
if (chown(temp_coefs_file_name,buf.st_uid,buf.st_gid)) {
LOG(LOGS_WARN, LOGF_RtcLinux, "Could not change ownership of temporary RTC file %s.tmp", coefs_file_name);
if (chown(temp_coefs_file_name,buf.st_uid,buf.st_gid) ||
chmod(temp_coefs_file_name,buf.st_mode & 0777)) {
LOG(LOGS_WARN, LOGF_RtcLinux,
"Could not change ownership or permissions of temporary RTC file %s.tmp",
coefs_file_name);
}
chmod(temp_coefs_file_name,buf.st_mode&0777);
}
/* Rename the temporary file to the correct location (see rename(2) for details). */