setvbuf 导致core dump

fish-fly

int OpenLogFile(char *FilName) {        char    itasLogFile[256];         memset(itasLogFile,0x00,sizeof(itasLogFile));     if( NULL == getenv("ITASLOGDIR")){ /*获得环境变量中设置的程序的目录*/         return FAILED;        }     memcpy(itasLogFile,getenv("ITASLOGDIR"),strlen(getenv("ITASLOGDIR"))); /*保存环境变量*/     strcat(itasLogFile,"/");     strcat(itasLogFile,FilName);     if((LogFile = fopen(itasLogFile,"a")) == NULL){         return FAILED;     }     if(0!=(setvbuf(LogFile,NULL,_IONBF,0))){         return FAILED;     }     return SUCCESS; }

环境描述：AXI5.3
程序在执行到setvbuf一行时
直接coredump
用dbx查看core文件，信息如下：
(dbx) where
leftmost(??, ??) at 0xd03af44c
malloc_y(0x18, 0x0, 0x4, 0x0, 0x117b809f, 0x17b809f, 0x0, 0x0) at 0xd03b1204
malloc_common_80_63(??) at 0xd034260c
malloc(??) at 0xd0342460
setvbuf_unlocked(??, ??, ??, ??) at 0xd04a3d64
setvbuf(??, ??, ??, ??) at 0xd04a3ea8
OpenLogFile(FilName = "VTHDETOA20150708"), line 98 in "writelog.c"

还请各位大侠帮忙看下什么原因？

churchmice

所有的代码都贴出来

天祥星辰

#include <stdio.h> #include <string.h> #include <stdlib.h> #define FAILED -1 #define SUCCESS 10 FILE *LogFile; int OpenLogFile( char *FilName ) { &nbsp;&nbsp;&nbsp;&nbsp;char itasLogFile[256]; &nbsp;&nbsp;&nbsp;&nbsp;memset( itasLogFile, 0x00, sizeof( itasLogFile ) ); &nbsp;&nbsp;&nbsp;&nbsp;if( getenv( "ITASLOGDIR" ) == NULL ) &nbsp;&nbsp;&nbsp;&nbsp;{ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return FAILED; &nbsp;&nbsp;&nbsp;&nbsp;} &nbsp;&nbsp;&nbsp;&nbsp;memcpy( itasLogFile, getenv( "ITASLOGDIR" ), strlen( getenv( "ITASLOGDIR" ) ) );&nbsp;&nbsp;&nbsp;&nbsp;/*保存环境变量 */ &nbsp;&nbsp;&nbsp;&nbsp;strcat( itasLogFile, "/" ); &nbsp;&nbsp;&nbsp;&nbsp;strcat( itasLogFile, FilName ); &nbsp;&nbsp;&nbsp;&nbsp;if( ( LogFile = fopen( itasLogFile, "a" ) ) == NULL ) &nbsp;&nbsp;&nbsp;&nbsp;{ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return FAILED; &nbsp;&nbsp;&nbsp;&nbsp;} &nbsp;&nbsp;&nbsp;&nbsp;if( 0 != ( setvbuf( LogFile, NULL, _IONBF, 0 ) ) ) &nbsp;&nbsp;&nbsp;&nbsp;{ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return FAILED; &nbsp;&nbsp;&nbsp;&nbsp;} &nbsp;&nbsp;&nbsp;&nbsp;return SUCCESS; } int main( void ) { &nbsp;&nbsp;&nbsp;&nbsp;putenv( "ITASLOGDIR=." ); &nbsp;&nbsp;&nbsp;&nbsp;OpenLogFile( "aa" ); &nbsp;&nbsp;&nbsp;&nbsp;fclose( LogFile ); &nbsp;&nbsp;&nbsp;&nbsp;return 0; }

简单测试之后 没有楼主所说问题呀
请检查你的程序