From da0575f3a383237dc9192d1c7ea54c7df9a8c8a6 Mon Sep 17 00:00:00 2001
From: in2 <in2@63ad8ddf-47c3-0310-b6dd-a9e9d9715204>
Date: Mon, 17 May 2004 09:09:52 +0000
Subject: add stampfilefd() to avoid race condition
git-svn-id: http://opensvn.csie.org/pttbbs/trunk/pttbbs@1998 63ad8ddf-47c3-0310-b6dd-a9e9d9715204
---
mbbsd/record.c | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
(limited to 'mbbsd')
diff --git a/mbbsd/record.c b/mbbsd/record.c
index c8393f6f..d50fb611 100644
--- a/mbbsd/record.c
+++ b/mbbsd/record.c
@@ -474,6 +474,37 @@ stampfile(char *fpath, fileheader_t * fh)
return 0;
}
+int
+stampfilefd(char *fpath, fileheader_t * fh)
+{
+ char *ip = fpath;
+ time_t dtime = COMMON_TIME;
+ struct tm *ptime;
+ int fd;
+
+ if (access(fpath, X_OK | R_OK | W_OK))
+ mkdir(fpath, 0755);
+
+ while (*(++ip))
+ ;
+ *ip++ = '/';
+
+ while( 1 ) {
+ sprintf(ip, "M.%d.A.%3.3X", (int)++dtime, rand() & 0xFFF);
+ if( (fd = open(fpath, O_CREAT | O_EXCL | O_WRONLY, 0644)) != -1 )
+ break;
+ if( errno != EEXIST )
+ return -1;
+ }
+
+ memset(fh, 0, sizeof(fileheader_t));
+ strlcpy(fh->filename, ip, sizeof(fh->filename));
+ ptime = localtime(&dtime);
+ snprintf(fh->date, sizeof(fh->date),
+ "%2d/%02d", ptime->tm_mon + 1, ptime->tm_mday);
+ return fd;
+}
+
void
stampdir(char *fpath, fileheader_t * fh)
{
--
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