mirror of
https://github.com/moparisthebest/curl
synced 2024-11-08 18:45:05 -05:00
289 lines
7.2 KiB
C
289 lines
7.2 KiB
C
#ifdef CURLDEBUG
|
|
/***************************************************************************
|
|
* _ _ ____ _
|
|
* Project ___| | | | _ \| |
|
|
* / __| | | | |_) | |
|
|
* | (__| |_| | _ <| |___
|
|
* \___|\___/|_| \_\_____|
|
|
*
|
|
* Copyright (C) 1998 - 2004, Daniel Stenberg, <daniel@haxx.se>, et al.
|
|
*
|
|
* This software is licensed as described in the file COPYING, which
|
|
* you should have received as part of this distribution. The terms
|
|
* are also available at http://curl.haxx.se/docs/copyright.html.
|
|
*
|
|
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
|
|
* copies of the Software, and permit persons to whom the Software is
|
|
* furnished to do so, under the terms of the COPYING file.
|
|
*
|
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
* KIND, either express or implied.
|
|
*
|
|
* $Id$
|
|
***************************************************************************/
|
|
|
|
#include "setup.h"
|
|
|
|
#include <curl/curl.h>
|
|
|
|
#ifdef HAVE_SYS_SOCKET_H
|
|
#include <sys/socket.h>
|
|
#endif
|
|
|
|
#define _MPRINTF_REPLACE
|
|
#include <curl/mprintf.h>
|
|
#include "urldata.h"
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
|
|
#ifdef HAVE_UNISTD_H
|
|
#include <unistd.h>
|
|
#endif
|
|
|
|
#define MEMDEBUG_NODEFINES /* don't redefine the standard functions */
|
|
#include "memdebug.h"
|
|
|
|
struct memdebug {
|
|
int size;
|
|
double mem[1];
|
|
/* I'm hoping this is the thing with the strictest alignment
|
|
* requirements. That also means we waste some space :-( */
|
|
};
|
|
|
|
/*
|
|
* Note that these debug functions are very simple and they are meant to
|
|
* remain so. For advanced analysis, record a log file and write perl scripts
|
|
* to analyze them!
|
|
*
|
|
* Don't use these with multithreaded test programs!
|
|
*/
|
|
|
|
#define logfile curl_debuglogfile
|
|
FILE *curl_debuglogfile;
|
|
static bool memlimit; /* enable memory limit */
|
|
static long memsize; /* set number of mallocs allowed */
|
|
|
|
/* this sets the log file name */
|
|
void curl_memdebug(const char *logname)
|
|
{
|
|
if(logname)
|
|
logfile = fopen(logname, "w");
|
|
else
|
|
logfile = stderr;
|
|
}
|
|
|
|
/* This function sets the number of malloc() calls that should return
|
|
successfully! */
|
|
void curl_memlimit(long limit)
|
|
{
|
|
memlimit = TRUE;
|
|
memsize = limit;
|
|
}
|
|
|
|
/* returns TRUE if this isn't allowed! */
|
|
static bool countcheck(const char *func, int line, const char *source)
|
|
{
|
|
/* if source is NULL, then the call is made internally and this check
|
|
should not be made */
|
|
if(memlimit && source) {
|
|
if(!memsize) {
|
|
if(logfile && source)
|
|
fprintf(logfile, "LIMIT %s:%d %s reached memlimit\n",
|
|
source, line, func);
|
|
return TRUE; /* RETURN ERROR! */
|
|
}
|
|
else
|
|
memsize--; /* countdown */
|
|
|
|
/* log the countdown */
|
|
if(logfile && source)
|
|
fprintf(logfile, "LIMIT %s:%d %ld ALLOCS left\n",
|
|
source, line, memsize);
|
|
|
|
}
|
|
|
|
return FALSE; /* allow this */
|
|
}
|
|
|
|
void *curl_domalloc(size_t wantedsize, int line, const char *source)
|
|
{
|
|
struct memdebug *mem;
|
|
size_t size;
|
|
|
|
if(countcheck("malloc", line, source))
|
|
return NULL;
|
|
|
|
/* alloc at least 64 bytes */
|
|
size = sizeof(struct memdebug)+wantedsize;
|
|
|
|
mem=(struct memdebug *)(malloc)(size);
|
|
if(mem) {
|
|
/* fill memory with junk */
|
|
memset(mem->mem, 0xA5, wantedsize);
|
|
mem->size = wantedsize;
|
|
}
|
|
|
|
if(logfile && source)
|
|
fprintf(logfile, "MEM %s:%d malloc(%d) = %p\n",
|
|
source, line, wantedsize, mem->mem);
|
|
return mem->mem;
|
|
}
|
|
|
|
void *curl_docalloc(size_t wanted_elements, size_t wanted_size,
|
|
int line, const char *source)
|
|
{
|
|
struct memdebug *mem;
|
|
size_t size, user_size;
|
|
|
|
if(countcheck("calloc", line, source))
|
|
return NULL;
|
|
|
|
/* alloc at least 64 bytes */
|
|
user_size = wanted_size * wanted_elements;
|
|
size = sizeof(struct memdebug) + user_size;
|
|
|
|
mem = (struct memdebug *)(malloc)(size);
|
|
if(mem) {
|
|
/* fill memory with zeroes */
|
|
memset(mem->mem, 0, user_size);
|
|
mem->size = user_size;
|
|
}
|
|
|
|
if(logfile && source)
|
|
fprintf(logfile, "MEM %s:%d calloc(%u,%u) = %p\n",
|
|
source, line, wanted_elements, wanted_size, mem->mem);
|
|
return mem->mem;
|
|
}
|
|
|
|
char *curl_dostrdup(const char *str, int line, const char *source)
|
|
{
|
|
char *mem;
|
|
size_t len;
|
|
|
|
curlassert(str != NULL);
|
|
|
|
if(countcheck("strdup", line, source))
|
|
return NULL;
|
|
|
|
len=strlen(str)+1;
|
|
|
|
mem=curl_domalloc(len, 0, NULL); /* NULL prevents logging */
|
|
memcpy(mem, str, len);
|
|
|
|
if(logfile)
|
|
fprintf(logfile, "MEM %s:%d strdup(%p) (%d) = %p\n",
|
|
source, line, str, len, mem);
|
|
|
|
return mem;
|
|
}
|
|
|
|
/* We provide a realloc() that accepts a NULL as pointer, which then
|
|
performs a malloc(). In order to work with ares. */
|
|
void *curl_dorealloc(void *ptr, size_t wantedsize,
|
|
int line, const char *source)
|
|
{
|
|
struct memdebug *mem=NULL;
|
|
|
|
size_t size = sizeof(struct memdebug)+wantedsize;
|
|
|
|
if(countcheck("realloc", line, source))
|
|
return NULL;
|
|
|
|
if(ptr)
|
|
mem = (struct memdebug *)((char *)ptr - offsetof(struct memdebug, mem));
|
|
|
|
mem=(struct memdebug *)(realloc)(mem, size);
|
|
if(logfile)
|
|
fprintf(logfile, "MEM %s:%d realloc(0x%x, %d) = %p\n",
|
|
source, line, ptr, wantedsize, mem?mem->mem:NULL);
|
|
|
|
if(mem) {
|
|
mem->size = wantedsize;
|
|
return mem->mem;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
void curl_dofree(void *ptr, int line, const char *source)
|
|
{
|
|
struct memdebug *mem;
|
|
|
|
curlassert(ptr != NULL);
|
|
|
|
mem = (struct memdebug *)((char *)ptr - offsetof(struct memdebug, mem));
|
|
|
|
/* destroy */
|
|
memset(mem->mem, 0x13, mem->size);
|
|
|
|
/* free for real */
|
|
(free)(mem);
|
|
|
|
if(logfile)
|
|
fprintf(logfile, "MEM %s:%d free(%p)\n", source, line, ptr);
|
|
}
|
|
|
|
int curl_socket(int domain, int type, int protocol, int line,
|
|
const char *source)
|
|
{
|
|
int sockfd=(socket)(domain, type, protocol);
|
|
if(logfile && (sockfd!=-1))
|
|
fprintf(logfile, "FD %s:%d socket() = %d\n",
|
|
source, line, sockfd);
|
|
return sockfd;
|
|
}
|
|
|
|
int curl_accept(int s, void *saddr, void *saddrlen,
|
|
int line, const char *source)
|
|
{
|
|
struct sockaddr *addr = (struct sockaddr *)saddr;
|
|
socklen_t *addrlen = (socklen_t *)saddrlen;
|
|
int sockfd=(accept)(s, addr, addrlen);
|
|
if(logfile)
|
|
fprintf(logfile, "FD %s:%d accept() = %d\n",
|
|
source, line, sockfd);
|
|
return sockfd;
|
|
}
|
|
|
|
/* this is our own defined way to close sockets on *ALL* platforms */
|
|
int curl_sclose(int sockfd, int line, const char *source)
|
|
{
|
|
int res=sclose(sockfd);
|
|
if(logfile)
|
|
fprintf(logfile, "FD %s:%d sclose(%d)\n",
|
|
source, line, sockfd);
|
|
return res;
|
|
}
|
|
|
|
FILE *curl_fopen(const char *file, const char *mode,
|
|
int line, const char *source)
|
|
{
|
|
FILE *res=(fopen)(file, mode);
|
|
if(logfile)
|
|
fprintf(logfile, "FILE %s:%d fopen(\"%s\",\"%s\") = %p\n",
|
|
source, line, file, mode, res);
|
|
return res;
|
|
}
|
|
|
|
int curl_fclose(FILE *file, int line, const char *source)
|
|
{
|
|
int res;
|
|
|
|
curlassert(file != NULL);
|
|
|
|
res=(fclose)(file);
|
|
if(logfile)
|
|
fprintf(logfile, "FILE %s:%d fclose(%p)\n",
|
|
source, line, file);
|
|
return res;
|
|
}
|
|
#else
|
|
#ifdef VMS
|
|
int VOID_VAR_MEMDEBUG;
|
|
#else
|
|
/* we provide a fake do-nothing function here to avoid compiler warnings */
|
|
void curl_memdebug(void) {}
|
|
#endif /* VMS */
|
|
#endif /* CURLDEBUG */
|