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# From: http://ydirson.free.fr/soft/git/cvsps.git
commit 76a9c2aaa0d2957de0bc8f0c0b994abfd1645a50
Author: David D. Kilzer <ddkilzer@kilzer.net>
Date: Mon Jun 20 01:04:34 2005 +0200
Dynamically allocate the log buffer to prevent warning messages
On anoncvs.opensource.apple.com (Apple's anonymous CVS server for
WebKit), some very long log entries were included in CVS. I got tired
of cvsps-2.1 truncating them, so I made the 'logbuff' buffer be
dynamically allocated.
diff --git i/cache.c w/cache.c
index 4c51cf7..01a8ed3 100644
--- i/cache.c
+++ w/cache.c
@@ -108,10 +108,19 @@ time_t read_cache()
int tag_flags = 0;
char branchbuff[LOG_STR_MAX] = "";
int branch_add = 0;
- char logbuff[LOG_STR_MAX] = "";
+ int logbufflen = LOG_STR_MAX + 1;
+ char * logbuff = malloc(logbufflen);
time_t cache_date = -1;
int read_version;
+ if (logbuff == NULL)
+ {
+ debug(DEBUG_SYSERROR, "could not malloc %d bytes for logbuff in read_cache", logbufflen);
+ exit(1);
+ }
+
+ logbuff[0] = 0;
+
if (!(fp = cache_open("r")))
goto out;
@@ -299,8 +308,19 @@ time_t read_cache()
else
{
/* Make sure we have enough in the buffer */
- if (strlen(logbuff)+strlen(buff)<LOG_STR_MAX)
- strcat(logbuff, buff);
+ int len = strlen(buff);
+ if (strlen(logbuff) + len >= LOG_STR_MAX)
+ {
+ logbufflen += (len >= LOG_STR_MAX ? (len+1) : LOG_STR_MAX);
+ char * newlogbuff = realloc(logbuff, logbufflen);
+ if (newlogbuff == NULL)
+ {
+ debug(DEBUG_SYSERROR, "could not realloc %d bytes for logbuff in read_cache", logbufflen);
+ exit(1);
+ }
+ logbuff = newlogbuff;
+ }
+ strcat(logbuff, buff);
}
break;
case CACHE_NEED_PS_MEMBERS:
@@ -332,6 +352,7 @@ time_t read_cache()
out_close:
fclose(fp);
out:
+ free(logbuff);
return cache_date;
}
diff --git i/cvsps.c w/cvsps.c
index f0e7d29..db28d7c 100644
--- i/cvsps.c
+++ w/cvsps.c
@@ -269,7 +269,8 @@ static void load_from_cvs()
PatchSetMember * psm = NULL;
char datebuff[26];
char authbuff[AUTH_STR_MAX];
- char logbuff[LOG_STR_MAX + 1];
+ int logbufflen = LOG_STR_MAX + 1;
+ char * logbuff = malloc(logbufflen);
int loglen = 0;
int have_log = 0;
char cmd[BUFSIZ];
@@ -277,6 +278,12 @@ static void load_from_cvs()
char use_rep_buff[PATH_MAX];
char * ltype;
+ if (logbuff == NULL)
+ {
+ debug(DEBUG_SYSERROR, "could not malloc %d bytes for logbuff in load_from_cvs", logbufflen);
+ exit(1);
+ }
+
if (!no_rlog && !test_log_file && cvs_check_cap(CAP_HAVE_RLOG))
{
ltype = "rlog";
@@ -484,25 +491,22 @@ static void load_from_cvs()
*/
if (have_log || !is_revision_metadata(buff))
{
- /* if the log buffer is full, that's it.
- *
- * Also, read lines (fgets) always have \n in them
- * (unless truncation happens)
- * which we count on. So if truncation happens,
- * be careful to put a \n on.
- *
- * Buffer has LOG_STR_MAX + 1 for room for \0 if
- * necessary
- */
- if (loglen < LOG_STR_MAX)
+ /* If the log buffer is full, try to reallocate more. */
+ if (loglen < logbufflen)
{
int len = strlen(buff);
- if (len >= LOG_STR_MAX - loglen)
+ if (len >= logbufflen - loglen)
{
- debug(DEBUG_APPMSG1, "WARNING: maximum log length exceeded, truncating log");
- len = LOG_STR_MAX - loglen;
- buff[len - 1] = '\n';
+ debug(DEBUG_STATUS, "reallocating logbufflen to %d bytes for file %s", logbufflen, file->filename);
+ logbufflen += (len >= LOG_STR_MAX ? (len+1) : LOG_STR_MAX);
+ char * newlogbuff = realloc(logbuff, logbufflen);
+ if (newlogbuff == NULL)
+ {
+ debug(DEBUG_SYSERROR, "could not realloc %d bytes for logbuff in load_from_cvs", logbufflen);
+ exit(1);
+ }
+ logbuff = newlogbuff;
}
debug(DEBUG_STATUS, "appending %s to log", buff);
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