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'pipe'에 해당되는 글 3건

2007/06/01 CGI programming 예제
2007/05/08 표준 출력/에러을 특정 파일로 재지향하는 예제 (dup2)
2007/05/05 pipe(pipe, dup2, popen) 통신 (2)

CGI programming 예제

Programming/C/C++ 2007/06/01 23:43

mzcgi.tar.bz2

CGI 에 관한 여러가지 사항을 예제로 표현해봤습니다. (첨부파일)

pipe 관련한 예제는 다음의 링크를 참고하세요.
https://bbs.minzkn.com/viewtopic.php?t=68&highlight=pipe

코드:

/*
Copyright (C) Information Equipment co.,LTD
All rights reserved.
Code by JaeHyuk Cho <mailto:minzkn@infoeq.com>
CVSTAG="$Header$"
*/

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>

static int g_argc;
static char **g_argv;
static char **g_env;

static int (cgi_system)(int s_print, const char *s_command)
{
FILE *s_pipe;
unsigned char s_buffer[ 4 << 10 ];
size_t s_read_bytes;
if((s_pipe = popen(s_command, "r")) == ((FILE *)0))return(-1);
while(feof(s_pipe) == 0)
{
s_read_bytes = fread((void *)(&s_buffer[0]), (size_t)1, (size_t)sizeof(s_buffer), s_pipe);
if(s_read_bytes <= ((size_t)0))break;
if((s_print != 0) && (fwrite((void *)(&s_buffer[0]), (size_t)1, s_read_bytes, stdout) != ((ssize_t)s_read_bytes)))break;
}
return(pclose(s_pipe));
}

static void (html_init)(void)
{
(void)fputs("Content-Type: text/html\n\n", stdout);
}

static void (html_head)(void)
{
(void)fputs("<html><head><title>cgi test</title></head><body>\n", stdout);
}

static void (html_tail)(void)
{
(void)fputs(" </body>\n</html>\n", stdout);
}

static void (html_body)(void)
{
int s_index;
(void)fputs("<p>MINZKN's CGI TEST</p><hr /><pre>\n", stdout);
for(s_index = 0;s_index < g_argc;s_index++)(void)fprintf(stdout, "argv[%d] = \"%s\"\n", s_index, g_argv[s_index]);
(void)fputs("</pre><hr />\n", stdout);

(void)fputs("<pre>\n", stdout);
for(s_index = 0;g_env[s_index] != ((char *)0);s_index++)(void)fprintf(stdout, "env[%d] = \"%s\"\n", s_index, g_env[s_index]);
(void)fputs("</pre><hr />\n", stdout);

(void)fputs("<pre>WHOAMI : ", stdout);
(void)cgi_system(1, "whoami");
(void)fprintf(stdout, "UID : %u</pre><hr />\n", (unsigned int)getuid());

(void)fputs("<pre>", stdout);
(void)cgi_system(1, "/bin/ls -al /tmp");
(void)fputs("</pre><hr />\n", stdout);
}

static void (html_flush)(void)
{
(void)fflush(stdout);
}

int (main)(int s_argc, char **s_argv, char **s_env)
{
g_argc = s_argc, g_argv = s_argv, g_env = s_env;
html_init();
html_head();
html_body();
html_tail();
html_flush();
return(0);
}

/* vim: set expandtab: */
/* End of source */

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