setvbuf 导致core dump

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