| #ifdef CURLDEBUG |
| /*************************************************************************** |
| * _ _ ____ _ |
| * Project ___| | | | _ \| | |
| * / __| | | | |_) | | |
| * | (__| |_| | _ <| |___ |
| * \___|\___/|_| \_\_____| |
| * |
| * Copyright (C) 1998 - 2004, Daniel Stenberg, <[email protected]>, 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 |
| |
| /* DONT include memdebug.h here! */ |
| |
| 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; |
| } |
| |
| 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; |
| } |
| |
| void *curl_dorealloc(void *ptr, size_t wantedsize, |
| int line, const char *source) |
| { |
| struct memdebug *mem; |
| |
| size_t size = sizeof(struct memdebug)+wantedsize; |
| |
| if(countcheck("realloc", line, source)) |
| return NULL; |
| |
| mem = (struct memdebug *)((char *)ptr - offsetof(struct memdebug, mem)); |
| |
| mem=(struct memdebug *)(realloc)(mem, size); |
| if(logfile) |
| fprintf(logfile, "MEM %s:%d realloc(%p, %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, 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, struct sockaddr *addr, socklen_t *addrlen, |
| int line, const char *source) |
| { |
| 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, 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\") = %p\n", |
| source, line, file, 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; |
| #endif |
| #endif /* CURLDEBUG */ |