#include "setup.h"
#ifdef CURLDEBUG
#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>
#include <stdarg.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#define MEMDEBUG_NODEFINES
#include "curl_memory.h"
#include "memdebug.h"
#ifndef HAVE_ASSERT_H
# define assert(x) do { } while (0)
#endif
struct memdebug {
size_t size;
union {
double d;
void * p;
} mem[1];
};
#define logfile curl_debuglogfile
FILE *curl_debuglogfile = NULL;
static bool memlimit = FALSE;
static long memsize = 0;
void curl_memdebug(const char *logname)
{
if(!logfile) {
if(logname)
logfile = fopen(logname, "w");
else
logfile = stderr;
#ifdef MEMDEBUG_LOG_SYNC
setvbuf(logfile, (char *)NULL, _IOLBF, 0);
#endif
}
}
void curl_memlimit(long limit)
{
if(!memlimit) {
memlimit = TRUE;
memsize = limit;
}
}
static bool countcheck(const char *func, int line, const char *source)
{
if(memlimit && source) {
if(!memsize) {
if(source) {
curl_memlog("LIMIT %s:%d %s reached memlimit\n",
source, line, func);
fprintf(stderr, "LIMIT %s:%d %s reached memlimit\n",
source, line, func);
}
SET_ERRNO(ENOMEM);
return TRUE;
}
else
memsize--;
if(source)
curl_memlog("LIMIT %s:%d %ld ALLOCS left\n",
source, line, memsize);
}
return FALSE;
}
void *curl_domalloc(size_t wantedsize, int line, const char *source)
{
struct memdebug *mem;
size_t size;
assert(wantedsize != 0);
if(countcheck("malloc", line, source))
return NULL;
size = sizeof(struct memdebug)+wantedsize;
mem = (Curl_cmalloc)(size);
if(mem) {
memset(mem->mem, 0xA5, wantedsize);
mem->size = wantedsize;
}
if(source)
curl_memlog("MEM %s:%d malloc(%zd) = %p\n",
source, line, wantedsize, mem ? mem->mem : 0);
return (mem ? mem->mem : NULL);
}
void *curl_docalloc(size_t wanted_elements, size_t wanted_size,
int line, const char *source)
{
struct memdebug *mem;
size_t size, user_size;
assert(wanted_elements != 0);
assert(wanted_size != 0);
if(countcheck("calloc", line, source))
return NULL;
user_size = wanted_size * wanted_elements;
size = sizeof(struct memdebug) + user_size;
mem = (Curl_cmalloc)(size);
if(mem) {
memset(mem->mem, 0, user_size);
mem->size = user_size;
}
if(source)
curl_memlog("MEM %s:%d calloc(%zu,%zu) = %p\n",
source, line, wanted_elements, wanted_size, mem?mem->mem:0);
return (mem ? mem->mem : NULL);
}
char *curl_dostrdup(const char *str, int line, const char *source)
{
char *mem;
size_t len;
assert(str != NULL);
if(countcheck("strdup", line, source))
return NULL;
len=strlen(str)+1;
mem=curl_domalloc(len, 0, NULL);
if(mem)
memcpy(mem, str, len);
if(source)
curl_memlog("MEM %s:%d strdup(%p) (%zu) = %p\n",
source, line, str, len, mem);
return mem;
}
void *curl_dorealloc(void *ptr, size_t wantedsize,
int line, const char *source)
{
struct memdebug *mem=NULL;
size_t size = sizeof(struct memdebug)+wantedsize;
assert(wantedsize != 0);
if(countcheck("realloc", line, source))
return NULL;
#ifdef __INTEL_COMPILER
# pragma warning(push)
# pragma warning(disable:1684)
#endif
if(ptr)
mem = (void *)((char *)ptr - offsetof(struct memdebug, mem));
#ifdef __INTEL_COMPILER
# pragma warning(pop)
#endif
mem = (Curl_crealloc)(mem, size);
if(source)
curl_memlog("MEM %s:%d realloc(%p, %zu) = %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;
assert(ptr != NULL);
#ifdef __INTEL_COMPILER
# pragma warning(push)
# pragma warning(disable:1684)
#endif
mem = (void *)((char *)ptr - offsetof(struct memdebug, mem));
#ifdef __INTEL_COMPILER
# pragma warning(pop)
#endif
memset(mem->mem, 0x13, mem->size);
(Curl_cfree)(mem);
if(source)
curl_memlog("MEM %s:%d free(%p)\n", source, line, ptr);
}
curl_socket_t curl_socket(int domain, int type, int protocol,
int line, const char *source)
{
const char *fmt = (sizeof(curl_socket_t) == sizeof(int)) ?
"FD %s:%d socket() = %d\n" :
(sizeof(curl_socket_t) == sizeof(long)) ?
"FD %s:%d socket() = %ld\n" :
"FD %s:%d socket() = %zd\n" ;
curl_socket_t sockfd = socket(domain, type, protocol);
if(source && (sockfd != CURL_SOCKET_BAD))
curl_memlog(fmt, source, line, sockfd);
return sockfd;
}
curl_socket_t curl_accept(curl_socket_t s, void *saddr, void *saddrlen,
int line, const char *source)
{
const char *fmt = (sizeof(curl_socket_t) == sizeof(int)) ?
"FD %s:%d accept() = %d\n" :
(sizeof(curl_socket_t) == sizeof(long)) ?
"FD %s:%d accept() = %ld\n" :
"FD %s:%d accept() = %zd\n" ;
struct sockaddr *addr = (struct sockaddr *)saddr;
curl_socklen_t *addrlen = (curl_socklen_t *)saddrlen;
curl_socket_t sockfd = accept(s, addr, addrlen);
if(source && (sockfd != CURL_SOCKET_BAD))
curl_memlog(fmt, source, line, sockfd);
return sockfd;
}
void curl_mark_sclose(curl_socket_t sockfd, int line, const char *source)
{
const char *fmt = (sizeof(curl_socket_t) == sizeof(int)) ?
"FD %s:%d sclose(%d)\n" :
(sizeof(curl_socket_t) == sizeof(long)) ?
"FD %s:%d sclose(%ld)\n" :
"FD %s:%d sclose(%zd)\n" ;
if(source)
curl_memlog(fmt, source, line, sockfd);
}
int curl_sclose(curl_socket_t sockfd, int line, const char *source)
{
int res=sclose(sockfd);
curl_mark_sclose(sockfd, line, source);
return res;
}
FILE *curl_fopen(const char *file, const char *mode,
int line, const char *source)
{
FILE *res=fopen(file, mode);
if(source)
curl_memlog("FILE %s:%d fopen(\"%s\",\"%s\") = %p\n",
source, line, file, mode, res);
return res;
}
#ifdef HAVE_FDOPEN
FILE *curl_fdopen(int filedes, const char *mode,
int line, const char *source)
{
FILE *res=fdopen(filedes, mode);
if(source)
curl_memlog("FILE %s:%d fdopen(\"%d\",\"%s\") = %p\n",
source, line, filedes, mode, res);
return res;
}
#endif
int curl_fclose(FILE *file, int line, const char *source)
{
int res;
assert(file != NULL);
res=fclose(file);
if(source)
curl_memlog("FILE %s:%d fclose(%p)\n",
source, line, file);
return res;
}
#define LOGLINE_BUFSIZE 1024
void curl_memlog(const char *format, ...)
{
char *buf;
int nchars;
va_list ap;
if(!logfile)
return;
buf = (Curl_cmalloc)(LOGLINE_BUFSIZE);
if(!buf)
return;
va_start(ap, format);
nchars = vsnprintf(buf, LOGLINE_BUFSIZE, format, ap);
va_end(ap);
if(nchars > LOGLINE_BUFSIZE - 1)
nchars = LOGLINE_BUFSIZE - 1;
if(nchars > 0)
fwrite(buf, 1, nchars, logfile);
(Curl_cfree)(buf);
}
#endif