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Prevent multiple initialization of memdebug configuration variables.

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This was possible on debug c-ares enabled builds when both CURL_MEMDEBUG
and CARES_MEMDEBUG environment variables were set. Leading to a file handle
leak even when both variables had the same value, and wierd test suite
results when different.
This commit is contained in:
Yang Tse 2006-11-05 12:42:50 +00:00
parent bf57e9bb12
commit 1bcbe89802
1 changed files with 13 additions and 9 deletions
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22
lib/memdebug.c
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@ -61,25 +61,29 @@ struct memdebug {
*/ */
#define logfile curl_debuglogfile #define logfile curl_debuglogfile
FILE *curl_debuglogfile; FILE *curl_debuglogfile = NULL;
static bool memlimit; /* enable memory limit */ static bool memlimit = FALSE; /* enable memory limit */
static long memsize; /* set number of mallocs allowed */ static long memsize = 0; /* set number of mallocs allowed */
/* this sets the log file name */ /* this sets the log file name */
void curl_memdebug(const char *logname) void curl_memdebug(const char *logname)
{ {
if(logname) if (!logfile) {
logfile = fopen(logname, "w"); if(logname)
else logfile = fopen(logname, "w");
logfile = stderr; else
logfile = stderr;
}
} }
/* This function sets the number of malloc() calls that should return /* This function sets the number of malloc() calls that should return
successfully! */ successfully! */
void curl_memlimit(long limit) void curl_memlimit(long limit)
{ {
memlimit = TRUE; if (!memlimit) {
memsize = limit; memlimit = TRUE;
memsize = limit;
}
} }
/* returns TRUE if this isn't allowed! */ /* returns TRUE if this isn't allowed! */