小技巧:自制c语言编制cgi实现搜索

发表于:2007-07-04来源:作者:点击数: 标签:
1. 环境 /usr/local/apache/h td ocs/ (待检索的文件在该目录下) /usr/local/apache/temp/ (作为中转的文件夹) /usr/local/apache/cgi-bin/ 2. 将gcc search.c产生的a.out放置在/usr/local/apache/cgi-bin/中,权限设置为nobody可 以执行。 3. chown -R nobo

  1. 环境
  /usr/local/apache/htdocs/ (待检索的文件在该目录下)
  /usr/local/apache/temp/ (作为中转的文件夹)
  /usr/local/apache/cgi-bin/
  2. 将gcc search.c产生的a.out放置在/usr/local/apache/cgi-bin/中,权限设置为nobody可
  以执行。
  3. chown -R nobody.nobody /usr/local/apache/temp
  4. 在/etc/cron.daily中增加一个文件deletetemp 权限为555
  rm -f /usr/local/apache/temp/*
  5. 在/etc/cron.hourly中增加一个文件myupdate 权限为555
  updatedb -U /usr/local/apache/htdocs
  6. 删除/etc/cron.daily中的一个文件slocate.cron
  
  附录(共2条):
  1. index.htm的源码
  <html>
  <head>
  <title>Untitled Document</title>
  <meta http-equiv="Content-Type" content="text/html; charset=gb2312">
  </head>
  
  <body>
  <p>请输入你的查询字符串</p>
  <form name="form1" action="http://129.158.217.223/cgi-bin/a.out">
  <p> </p>
  <p>
  <input name="keyname" value="" type=text>
  </p>
  <p>
  <input type="submit" value="查询">
  </p>
  </form>
  <p> </p>
  </body>
  </html>
  
  2. search.c的源码
  #include <stdio.h>
  #include <stdlib.h>
  #include <unistd.h>
  #include <sys/types.h>
  #include <fcntl.h>
  
  int main(int argc, char* argv[])
  {
  int fd;
  int status;
  time_t i;
  char cFileName[64];
  char cTempName[64];
  char cBuffer[1024];
  char *p = cBuffer;
  char cContent[10240];
  
  char *data;
  char keyword[1024];
  data = getenv("QUERY_STRING");
  if(data==NULL)
  {
  printf("Content-Type:text/html ");
  printf("not found!");
  exit(1);
  }
  
  sscanf(data, "keyname=%s&", keyword);
  
  p += sprintf(p, "locate '%s' | sed -e 's#^/usr/local/apache/htdocs#http://129.158.217.223#' | sed -e 's#^.*$#<a href=&>&</a>
  #' > ", keyword);
  i = time(NULL);
  
  sprintf(cTempName, "%d.html", i);
  sprintf(cFileName, "/usr/local/apache/temp/%d.html", i);
  strcat(cBuffer, cFileName);
  cBuffer[1024-1]=0;
  
  system(cBuffer);
  fd = open(cFileName, O_RDWR);
  status = read(fd, cContent, sizeof(cContent)-1);
  close(fd);
  
  printf("Content-Type:text/html ");
  printf("<meta http-equiv=refresh content=0;url="http://129.158.217.223/temp/%s"> ", cTempName);
  printf("Waiting....................... ");
  printf("%s", keyword);
  return 0;
  }
  
  

原文转自:http://www.ltesting.net