📄 hello.c
字号:
/* * Dpi for "Hello World". * * This server is an example. Play with it and modify to your taste. * * Copyright 2003 Jorge Arellano Cid <jcid@dillo.org> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * */#include <glib.h>#include <unistd.h>#include <sys/types.h>#include <stdio.h>#include <stdlib.h>#include <string.h>#include <errno.h>#include "../dpip/dpip.h"#include "dpiutil.h"/*---------------------------------------------------------------------------*//* * */int main(void){ FILE *in_stream; SockHandler *sh; gchar *dpip_tag, *cmd = NULL, *url = NULL, *child_cmd = NULL; gchar *esc_tag, *d_cmd; size_t n; gint ret; gchar buf[4096]; gchar *choice[] = {"Window was closed", "Yes", "No", "Could be", "It's OK", "Cancel"}; /* "Could>be", ">It's OK", "Can'>cel"}; --for testing */ gint choice_num; g_printerr("hello.dpi:: starting...\n"); /* Initialize the SockHandler */ sh = sock_handler_new(STDIN_FILENO, STDOUT_FILENO, 2*1024); /* Read the dpi command from STDIN */ dpip_tag = sock_handler_read(sh); g_printerr("[%s]\n", dpip_tag); cmd = a_Dpip_get_attr(dpip_tag, strlen(dpip_tag), "cmd"); url = a_Dpip_get_attr(dpip_tag, strlen(dpip_tag), "url");/*-- Dialog part */{ gchar *dpip_tag2, *dialog_msg; /* Let's confirm the request */ /* NOTE: you can send less alternatives (e.g. only alt1 and alt2) */ d_cmd = a_Dpip_build_cmd( "cmd=%s msg=%s alt1=%s alt2=%s alt3=%s alt4=%s alt5=%s", "dialog", "Do you want to see the hello page?", choice[1], choice[2], choice[3], choice[4], choice[5]); sock_handler_write_str(sh, d_cmd, 1); g_free(d_cmd); /* Get the answer */ dpip_tag2 = sock_handler_read(sh); g_printerr("[%s]\n", dpip_tag2); /* Get "msg" value */ dialog_msg = a_Dpip_get_attr(dpip_tag2, strlen(dpip_tag2), "msg"); choice_num = 0; if (dialog_msg) choice_num = *dialog_msg - '0'; g_free(dialog_msg); g_free(dpip_tag2);}/*-- EOD part */ /* Start sending our answer */ d_cmd = a_Dpip_build_cmd("cmd=%s url=%s", "start_send_page", url); sock_handler_write_str(sh, d_cmd, 0); g_free(d_cmd); sock_handler_printf(sh, 0, "Content-type: text/html\n\n" "<!DOCTYPE HTML PUBLIC '-//W3C//DTD HTML 4.01 Transitional//EN'>\n" "<html>\n" "<head><title>Simple dpi test page (hello.dpi)</title></head>\n" "<body><hr><h1>Hello world!</h1><hr>\n<br><br>\n"); /* Show the choice received with the dialog */ sock_handler_printf(sh, 0, "<hr>\n" "<table width='100%%' border='1' bgcolor='burlywood'><tr><td>\n" "<big><em>Dialog question:</em> Do you want to see the hello page?<br>\n" "<em>Answer received:</em> <b>%s</b></big> </table>\n" "<hr>\n", choice[choice_num]); /* Show the dpip tag we received */ esc_tag = Escape_html_str(dpip_tag); sock_handler_printf(sh, 0, "<h3>dpip tag received:</h3>\n" "<pre>\n%s</pre>\n" "<br><small>(<b>dpip:</b> dpi protocol)</small><br><br><br>\n", esc_tag); g_free(esc_tag); /* Now something more interesting, * fork a command and show its feedback */ if (cmd && url) { child_cmd = g_strdup("date -R"); g_printerr("[%s]\n", child_cmd); /* Fork, exec command, get its output and answer */ if ((in_stream = popen(child_cmd, "r")) == NULL) { perror("popen"); return EXIT_FAILURE; } sock_handler_printf(sh, 0, "<h3>date:</h3>\n"); sock_handler_printf(sh, 0, "<pre>\n"); /* Read/Write */ while ((n = fread (buf, 1, 4096, in_stream)) > 0) { sock_handler_write(sh, buf, n, 0); } sock_handler_printf(sh, 0, "</pre>\n"); if ((ret = pclose(in_stream)) != 0) g_printerr("popen: [%d]\n", ret); g_free(child_cmd); } sock_handler_printf(sh, 1, "</body></html>\n"); g_free(cmd); g_free(url); g_free(dpip_tag); /* Finish the SockHandler */ sock_handler_close(sh); sock_handler_free(sh); return 0;}⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -