* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
- * Copyright (C) 1998 - 2010, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2017, 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.
+ * are also available at https://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
*
***************************************************************************/
-#include "setup.h"
+#include "curl_setup.h"
#ifdef CURLDEBUG
-#include <curl/curl.h>
-#ifdef HAVE_SYS_SOCKET_H
-#include <sys/socket.h>
-#endif
+#include <curl/curl.h>
-#define _MPRINTF_REPLACE
-#include <curl/mprintf.h>
#include "urldata.h"
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-
#define MEMDEBUG_NODEFINES /* don't redefine the standard functions */
+
+/* The last 3 #include files should be in this order */
+#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
-#ifndef HAVE_ASSERT_H
-# define assert(x) do { } while (0)
+/*
+ * Until 2011-08-17 libcurl's Memory Tracking feature also performed
+ * automatic malloc and free filling operations using 0xA5 and 0x13
+ * values. Our own preinitialization of dynamically allocated memory
+ * might be useful when not using third party memory debuggers, but
+ * on the other hand this would fool memory debuggers into thinking
+ * that all dynamically allocated memory is properly initialized.
+ *
+ * As a default setting, libcurl's Memory Tracking feature no longer
+ * performs preinitialization of dynamically allocated memory on its
+ * own. If you know what you are doing, and really want to retain old
+ * behavior, you can achieve this compiling with preprocessor symbols
+ * CURL_MT_MALLOC_FILL and CURL_MT_FREE_FILL defined with appropriate
+ * values.
+ */
+
+#ifdef CURL_MT_MALLOC_FILL
+# if (CURL_MT_MALLOC_FILL < 0) || (CURL_MT_MALLOC_FILL > 0xff)
+# error "invalid CURL_MT_MALLOC_FILL or out of range"
+# endif
+#endif
+
+#ifdef CURL_MT_FREE_FILL
+# if (CURL_MT_FREE_FILL < 0) || (CURL_MT_FREE_FILL > 0xff)
+# error "invalid CURL_MT_FREE_FILL or out of range"
+# endif
+#endif
+
+#if defined(CURL_MT_MALLOC_FILL) && defined(CURL_MT_FREE_FILL)
+# if (CURL_MT_MALLOC_FILL == CURL_MT_FREE_FILL)
+# error "CURL_MT_MALLOC_FILL same as CURL_MT_FREE_FILL"
+# endif
+#endif
+
+#ifdef CURL_MT_MALLOC_FILL
+# define mt_malloc_fill(buf,len) memset((buf), CURL_MT_MALLOC_FILL, (len))
+#else
+# define mt_malloc_fill(buf,len) Curl_nop_stmt
+#endif
+
+#ifdef CURL_MT_FREE_FILL
+# define mt_free_fill(buf,len) memset((buf), CURL_MT_FREE_FILL, (len))
+#else
+# define mt_free_fill(buf,len) Curl_nop_stmt
#endif
struct memdebug {
size_t size;
union {
+ curl_off_t o;
double d;
- void * p;
+ void *p;
} mem[1];
/* I'm hoping this is the thing with the strictest alignment
* requirements. That also means we waste some space :-( */
void curl_memdebug(const char *logname)
{
if(!logfile) {
- if(logname)
- logfile = fopen(logname, "w");
+ if(logname && *logname)
+ logfile = fopen(logname, FOPEN_WRITETEXT);
else
logfile = stderr;
#ifdef MEMDEBUG_LOG_SYNC
/* Flush the log file after every line so the log isn't lost in a crash */
- setvbuf(logfile, (char *)NULL, _IOLBF, 0);
+ if(logfile)
+ setbuf(logfile, (char *)NULL);
#endif
}
}
/* log to stderr also */
fprintf(stderr, "LIMIT %s:%d %s reached memlimit\n",
source, line, func);
+ fflush(logfile); /* because it might crash now */
}
- SET_ERRNO(ENOMEM);
+ errno = ENOMEM;
return TRUE; /* RETURN ERROR! */
}
else
memsize--; /* countdown */
- /* log the countdown */
- if(source)
- curl_memlog("LIMIT %s:%d %ld ALLOCS left\n",
- source, line, memsize);
}
struct memdebug *mem;
size_t size;
- assert(wantedsize != 0);
+ DEBUGASSERT(wantedsize != 0);
if(countcheck("malloc", line, source))
return NULL;
/* alloc at least 64 bytes */
- size = sizeof(struct memdebug)+wantedsize;
+ size = sizeof(struct memdebug) + wantedsize;
mem = (Curl_cmalloc)(size);
if(mem) {
/* fill memory with junk */
- memset(mem->mem, 0xA5, wantedsize);
+ mt_malloc_fill(mem->mem, wantedsize);
mem->size = wantedsize;
}
if(source)
- curl_memlog("MEM %s:%d malloc(%zd) = %p\n",
- source, line, wantedsize, mem ? mem->mem : 0);
+ curl_memlog("MEM %s:%d malloc(%zu) = %p\n",
+ source, line, wantedsize,
+ mem ? (void *)mem->mem : (void *)0);
+
return (mem ? mem->mem : NULL);
}
struct memdebug *mem;
size_t size, user_size;
- assert(wanted_elements != 0);
- assert(wanted_size != 0);
+ DEBUGASSERT(wanted_elements != 0);
+ DEBUGASSERT(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) {
- /* fill memory with zeroes */
- memset(mem->mem, 0, user_size);
+ mem = (Curl_ccalloc)(1, size);
+ if(mem)
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);
+ source, line, wanted_elements, wanted_size,
+ mem ? (void *)mem->mem : (void *)0);
+
return (mem ? mem->mem : NULL);
}
char *mem;
size_t len;
- assert(str != NULL);
+ DEBUGASSERT(str != NULL);
if(countcheck("strdup", line, source))
return NULL;
- len=strlen(str)+1;
+ len = strlen(str) + 1;
- mem=curl_domalloc(len, 0, NULL); /* NULL prevents logging */
+ mem = curl_domalloc(len, 0, NULL); /* NULL prevents logging */
if(mem)
memcpy(mem, str, len);
if(source)
curl_memlog("MEM %s:%d strdup(%p) (%zu) = %p\n",
- source, line, str, len, mem);
+ source, line, (const void *)str, len, (const void *)mem);
return mem;
}
+#if defined(WIN32) && defined(UNICODE)
+wchar_t *curl_dowcsdup(const wchar_t *str, int line, const char *source)
+{
+ wchar_t *mem;
+ size_t wsiz, bsiz;
+
+ DEBUGASSERT(str != NULL);
+
+ if(countcheck("wcsdup", line, source))
+ return NULL;
+
+ wsiz = wcslen(str) + 1;
+ bsiz = wsiz * sizeof(wchar_t);
+
+ mem = curl_domalloc(bsiz, 0, NULL); /* NULL prevents logging */
+ if(mem)
+ memcpy(mem, str, bsiz);
+
+ if(source)
+ curl_memlog("MEM %s:%d wcsdup(%p) (%zu) = %p\n",
+ source, line, (void *)str, bsiz, (void *)mem);
+
+ return mem;
+}
+#endif
+
/* 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;
+ struct memdebug *mem = NULL;
- size_t size = sizeof(struct memdebug)+wantedsize;
+ size_t size = sizeof(struct memdebug) + wantedsize;
- assert(wantedsize != 0);
+ DEBUGASSERT(wantedsize != 0);
if(countcheck("realloc", line, source))
return NULL;
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);
+ source, line, (void *)ptr, wantedsize,
+ mem ? (void *)mem->mem : (void *)0);
if(mem) {
mem->size = wantedsize;
{
struct memdebug *mem;
- assert(ptr != NULL);
+ if(ptr) {
#ifdef __INTEL_COMPILER
# pragma warning(push)
/* 1684: conversion from pointer to same-sized integral type */
#endif
- mem = (void *)((char *)ptr - offsetof(struct memdebug, mem));
+ mem = (void *)((char *)ptr - offsetof(struct memdebug, mem));
#ifdef __INTEL_COMPILER
# pragma warning(pop)
#endif
- /* destroy */
- memset(mem->mem, 0x13, mem->size);
+ /* destroy */
+ mt_free_fill(mem->mem, mem->size);
- /* free for real */
- (Curl_cfree)(mem);
+ /* free for real */
+ (Curl_cfree)(mem);
+ }
if(source)
- curl_memlog("MEM %s:%d free(%p)\n", source, line, ptr);
+ curl_memlog("MEM %s:%d free(%p)\n", source, line, (void *)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" ;
+ "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;
+
+ if(countcheck("socket", line, source))
+ return CURL_SOCKET_BAD;
+
+ sockfd = socket(domain, type, protocol);
- curl_socket_t sockfd = socket(domain, type, protocol);
if(source && (sockfd != CURL_SOCKET_BAD))
curl_memlog(fmt, source, line, sockfd);
+
return sockfd;
}
+SEND_TYPE_RETV curl_dosend(SEND_TYPE_ARG1 sockfd,
+ SEND_QUAL_ARG2 SEND_TYPE_ARG2 buf,
+ SEND_TYPE_ARG3 len, SEND_TYPE_ARG4 flags, int line,
+ const char *source)
+{
+ SEND_TYPE_RETV rc;
+ if(countcheck("send", line, source))
+ return -1;
+ rc = send(sockfd, buf, len, flags);
+ if(source)
+ curl_memlog("SEND %s:%d send(%lu) = %ld\n",
+ source, line, (unsigned long)len, (long)rc);
+ return rc;
+}
+
+RECV_TYPE_RETV curl_dorecv(RECV_TYPE_ARG1 sockfd, RECV_TYPE_ARG2 buf,
+ RECV_TYPE_ARG3 len, RECV_TYPE_ARG4 flags, int line,
+ const char *source)
+{
+ RECV_TYPE_RETV rc;
+ if(countcheck("recv", line, source))
+ return -1;
+ rc = recv(sockfd, buf, len, flags);
+ if(source)
+ curl_memlog("RECV %s:%d recv(%lu) = %ld\n",
+ source, line, (unsigned long)len, (long)rc);
+ return rc;
+}
+
+#ifdef HAVE_SOCKETPAIR
+int curl_socketpair(int domain, int type, int protocol,
+ curl_socket_t socket_vector[2],
+ int line, const char *source)
+{
+ const char *fmt = (sizeof(curl_socket_t) == sizeof(int)) ?
+ "FD %s:%d socketpair() = %d %d\n" :
+ (sizeof(curl_socket_t) == sizeof(long)) ?
+ "FD %s:%d socketpair() = %ld %ld\n" :
+ "FD %s:%d socketpair() = %zd %zd\n";
+
+ int res = socketpair(domain, type, protocol, socket_vector);
+
+ if(source && (0 == res))
+ curl_memlog(fmt, source, line, socket_vector[0], socket_vector[1]);
+
+ return res;
+}
+#endif
+
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" ;
+ "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" ;
+ "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);
/* this is our own defined way to close sockets on *ALL* platforms */
int curl_sclose(curl_socket_t sockfd, int line, const char *source)
{
- int res=sclose(sockfd);
+ 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);
+ FILE *res = fopen(file, mode);
+
if(source)
curl_memlog("FILE %s:%d fopen(\"%s\",\"%s\") = %p\n",
- source, line, file, mode, res);
+ source, line, file, mode, (void *)res);
+
return res;
}
FILE *curl_fdopen(int filedes, const char *mode,
int line, const char *source)
{
- FILE *res=fdopen(filedes, mode);
+ FILE *res = fdopen(filedes, mode);
+
if(source)
curl_memlog("FILE %s:%d fdopen(\"%d\",\"%s\") = %p\n",
- source, line, filedes, mode, res);
+ source, line, filedes, mode, (void *)res);
+
return res;
}
#endif
{
int res;
- assert(file != NULL);
+ DEBUGASSERT(file != NULL);
+
+ res = fclose(file);
- res=fclose(file);
if(source)
curl_memlog("FILE %s:%d fclose(%p)\n",
- source, line, file);
+ source, line, (void *)file);
+
return res;
}
#define LOGLINE_BUFSIZE 1024
-/* this does the writting to the memory tracking log file */
+/* this does the writing to the memory tracking log file */
void curl_memlog(const char *format, ...)
{
char *buf;
nchars = LOGLINE_BUFSIZE - 1;
if(nchars > 0)
- fwrite(buf, 1, nchars, logfile);
+ fwrite(buf, 1, (size_t)nchars, logfile);
(Curl_cfree)(buf);
}
projects / platform / upstream / curl.git / blobdiff