Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

linuxÖÐC³ÌÐò³öÏÖSegmentation fault¡£¡£¡£

ÈçÌ⣺linuxÖÐC³ÌÐò³öÏÖSegmentation fault¡£

ʹÓÃCдÁËÒ»¸öCGI ¡­¡­

µ«ÊÇÔÚ±àÒëµÄʱÔÚ char *DATA = getenv("QUERY_STRING"); Óо¯¸æ£º

warning£ºassignment makes pointer from integer without a cast


²¿·ÖÔ´³ÌÐò£º

#include <stdio.h>  // Ö»ÓÐÕâÒ»¸öÍ·Îļþ

char username[20];  // ·ÅÓû§Ãû
char password[20];  // ·ÅÃÜÂë
char *DATA = getenv("QUERY_STRING");  // È¡µÃCGIÊäÈ룬POST·½Ê½
if( DATA == NULL ){return 0;}    // ¿´Ö¸ÕëÊÇ·ñÓÐЧ
sscanf(DATA, "username=%s&password=%d",&username,&password);  // È¡³öusernameºÍpassword
ÔÙÍùÏÂÊDZȽÏ×Ö·û´«
¡­¡­¡­¡­¡­¡­
¡­¡­¡­¡­¡­¡­
¡­¡­¡­¡­¡­¡­

ÎÒÒѾ­ÊÔ¹ý  char *DATA =£¨char*£©getenv("QUERY_STRING");
±àÒëʱ²»ÏÔʾ¾¯¸æÁË£¬µ«ÊÇÔËÐÐʱ»¹»á  Segmentation fault

Ò²ÊÔ¹ý  sscanf(getenv("QUERY_STRING"),"username=%s&password=%d",&username,&password);
µ«ÊÇÒ²²»ÐÐ

Ó¦¸Ã²»ÊÇÀàÐÍת»»µÄÎÊÌ⣬
´ó¼Ò¿ìÀ´°ïÎÒ¿´¿´°¡¡­¡­

ллÀ²£¡£¡£¡


VPC2007ÖеÄRedHat9.0£¬ÄÚºË2.4.20-8


sscanf(DATA, "username=%s&password=%d",username,password);



ºÜÄÑ¿ØÖÆ£¬
sscanfÖ§³Ö ÕýÔò ±í´ïʽ.

ÒýÓÃ
sscanf(DATA, &q


Ïà¹ØÎÊ´ð£º

ѧϰÌÖÂÛ C/C++ QQȺ - C/C++ / ·Ç¼¼ÊõÇø

QQȺ 29152388
ÓÑÇéUP

°ï¶¥

up

°ïup

up Ö§³Ö£¡

up jf

...ÄѵÀÓзÖ..?

up up up
Ï£ÍûÓеüӷ֣¬¹þ¹þ¡£

Ö§³Ö£¬ÎÒ¼ÓÁË£¬Ï£ÍûÂ¥Ö÷ÄܼÓÎÒ£¬¹²Í¬Ñ§Ï°¹þ

¼ÓÁË¡£

¶¥ÉÏ£¬Ã¿ÌìÊÕ»ñÒ»µã£¬Ö§³Ö ......

Ïò¸ßÊÖÇë½Ìfortran µ÷ÓÃC µÄÎÊÌâ

ÎÒÏÖÔÚҪЩһ¸öfortranµ÷ÓÃC½Ó¿ÚµÄÎÊÌ⣬µ«ÊDz»ÖªµÀ CÓïÑÔÀïÃæ·ÖÅäµÄÖ¸ÕëÔõô¸¶¸øfortran,ÓÖ²»ÄÜÔÚfortranÁ¢ÂíÏÈ·ÖÅäºÃ£¬ÒµÎñÉϲ»ÔÊÐí¡£
ÎÒдÁ˸ö²âÊÔµÄÀý×Ó¡£µ«ÊDz»ÐС£
test.c
#include <stdio.h>
#incl ......

Çë½ÌÒ»ÌâC£¬ÎÒ¿´²»Ã÷°×£¡ - C/C++ / CÓïÑÔ

#include "stdio.h"
void main()
{
  int *p;
  int a[10]={0,1,2,3,4,5,6,7,8,9};
  int k=0;
  p=a;
  for(int i=0;i<10;i++,p ......

VFPÈçºÎµ÷ÓÃCº¯Êý - ÆäËûÊý¾Ý¿â¿ª·¢ / VFP

ÇëÎÊVFPÖÐÈçºÎµ÷ÓÃC/C++º¯Êý£¿

ÄãÒªµ÷ÓÃʲô¹¦Äܵĺ¯Êý£¿Òª¿´¿´VFPÖÐÓÐûÓжÔÓ¦µÄº¯Êý£¬Èç¹ûÓоÍÊ¡×ÅÔÙµ÷ÓÃÁË¡£Èç¹ûûÓУ¬¿ÉÒÔ½«C/C++º¯Êýд¸öDLL»òFLL£¬È»ºóÔÚVFPµ÷Óü´¿É¡£

Ê®¶¹Èý ÀÏʦ£¬Ôõô²ÅÄÜÐÞ¸Ä×Ô¼ºµÄ ......

linuxÏÂCÓïÑÔ¿ª·¢oracleµÄÎÊÌâ¡£

Á½¸öÎļþ1.PC£¬1.inc
1.PCÓвÙ×÷oracleÊý¾Ý¿âµÄ ,1.incÒ²ÓвÙ×÷oracleÊý¾Ý¿â 
ÔÚÆäËûÊý¾ÝÖÐÈçinformix ÖÐ$include 1.inc¾Í¿ÉÒÔʹÓÃÁË
ÔÚORACLEÊý¾Ý¿âÖØ $include 1.inc²»¿ÉÓà EXEC SQL include 1.incÒ²²»¿É ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ