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发信人: jjk (UNIX+C+XML+?? 傻了?), 信区: Linux
标 题: [Z]SmartGirl-0.0.0-beta1 guru (转寄)[转载]
发信站: 荔园晨风BBS站 (Thu Apr 25 10:25:41 2002), 转信
【 以下文字转载自 jjk 的信箱 】
【 原文由 jjk.bbs@apue.dhs.org 所发表 】
发信人: SingleBoy (孤鹰★忧伤的夜鸟), 信区: Linux
标 题: SmartGirl-0.0.0-beta1
发信站: 华南网木棉站 (Tue Jan 4 04:23:32 2000), 转信
/****************************************************************
* 本程序遵循 GPL 发布, 可以自由和免费地被复制, 使用
* 发布的目的是使它有用, 不提供任何承诺和保障.
*
* 如果本程序被修改, 您必须保证本段文字随改动后的程序
* 一起发布, 并且修改者的信息追加到下面的作者列表
* 的后面
*
* 作 者: Rocky S. Lee
* 邮 箱: coolrocky@21cn.com
*****************************************************************/
#include <fcntl.h>
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/select.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/types.h>
#include <termios.h>
#include <unistd.h>
#define VERSION "0.0.0-beta1"
#define MAX_FD_NUM 20
#define TRUE 1
#define FALSE 0
#define FAILED -1
#define SUCCESS 0
#define NICKNAME_UNKNOWN 1
#define LOGIN_NAME_ERROR 2
//HERE CAN DEFINE OTHER CONSTANTS
char* error[] = {
"Success.",
"The LOGIN NAME may be wrong."
};
#define TIME_OUT 60
#define MAXPATHLEN 4095
#define COMMAND "telnet"
struct account_info {
char nickname[32];
char realaddress[32];
};
int setup_mode(struct termios* old_term_param);
int reset_mode(struct termios* old_term_param);
int read_string(int handle, char* buffer, int buf_len);
int get_account_info(char* nickname, struct account_info* info_record);
int enjoy_it(int fd_read, int fd_write);
int main(int argc, char* argv[])
{
int fd_read, fd_write, f_in[2], f_out[2];
char* argus[3];
char* version = VERSION;
struct account_info info_record;
pthread_t* thread_anti_idle_id;
printf(";34mThanks for using SmartGirl %s!\n0m", version);
if (argc <2) {
printf("Too few arguments!\n");
printf("Usage:\n\t%s <NICK NAME>\n", argv[0]);
exit(0);
}
if (get_account_info(argv[1], &info_record) != 0) {
printf("The target \"%s\" is unknown ...\n", argv[1]);
/* The code passes argv[1] to telnet goes here */
exit(1);
}
pipe(f_in);
pipe(f_out);
switch (fork()) {
case -1: /* cannot fork child process */
perror("Cannot fork a subroutine.\n");
exit(1);
case 0: /* child process */
dup2(f_in[0], STDIN_FILENO);
close(f_in[0]);
close(f_in[1]);
dup2(f_out[1], STDOUT_FILENO);
close(f_out[0]);
close(f_out[1]);
argus[0] = COMMAND;
argus[1] = info_record.realaddress;
argus[2] = NULL;
if ((execvp("telnet", &argus[0]))<0) {
perror("The execvp of command faild ...\n");
exit(1);
}
break;
default: /* parent process */
close(f_in[0]);
fd_write = f_in[1];
close(f_out[1]);
fd_read = f_out[0];
enjoy_it(fd_read, fd_write);
break;
}
close(f_in[0]);
close(f_in[1]);
close(f_out[0]);
close(f_out[1]);
return 0;
}
int get_account_info(char* nickname, struct account_info* info_record)
{
int i, conf_file, found;
char path[MAXPATHLEN];
if ((getenv("HOME")) == NULL) {
perror("Home directory no found!\n");
return -1;
}
strcpy(path, getenv("HOME"));
strcat(path, "/.go_rc");
if ((conf_file=open(path, O_RDONLY)) == -1) {
perror("Cannot open config file ...\n");
return -1;
}
found = 0;
while (read_string(conf_file, info_record->nickname, 32) != 0
&& read_string(conf_file, info_record->realaddress, 32) != 0) {
if ((strcmp(nickname, info_record->nickname)) == 0) {
found = 1;
break;
}
}
close(conf_file);
if (found)
return SUCCESS;
else
return NICKNAME_UNKNOWN;
}
int read_string(int handle, char* buffer, int buf_len)
{
char* bufp = buffer;
int counter = 0, i;
for (i = 0; i < buf_len; i++)
buffer[i] = '\0';
while (((i = read(handle, bufp, 1)) != 0) && counter < buf_len) {
if (*bufp == ' ' || *bufp == '\t'
|| *bufp == '\n' || *bufp == '\r') {
*bufp = '\0';
break;
}
counter++;
bufp++;
}
if (counter >= buf_len)
*bufp = '\0';
return counter;
}
int enjoy_it(int fd_read, int fd_write)
{
char buff;
#define BUFFER_SIZE 1024
char buffer[BUFFER_SIZE];
int counter;
fd_set fdR, fdW;
struct timeval time_value;
struct termios old_term_param;
setup_mode(&old_term_param);
while (1) {
FD_ZERO(&fdR);
FD_SET(fd_read, &fdR);
FD_SET(STDIN_FILENO, &fdR);
time_value.tv_sec = TIME_OUT;
time_value.tv_usec = 0;
if (select(MAX_FD_NUM + 1, &fdR, NULL, NULL, &time_value) == 0)
buff = 12;
write(fd_write, &buff, 1);
continue;
}
if (FD_ISSET(STDIN_FILENO, &fdR)) {
if (read(STDIN_FILENO, &buff, 1) == 1) {
if (buff == 29) {
write(fd_write, "\035quit\n", 6);
write(STDOUT_FILENO, "\n", 1);
break;
}
if (write(fd_write, &buff, 1) != 1)
break;
}
}
if (FD_ISSET(fd_read, &fdR)) {
if ((counter = read(fd_read, buffer, BUFFER_SIZE)) > 0)
write(STDOUT_FILENO, buffer, counter);
else
break;
}
}
reset_mode(&old_term_param);
return SUCCESS;
}
int setup_mode(struct termios* old_term_param)
{
struct termios current_term_param;
if (!isatty(STDIN_FILENO))
return FAILED;
if (tcgetattr(STDIN_FILENO, ¤t_term_param) == -1)
return FAILED;
*old_term_param = current_term_param;
current_term_param.c_lflag &= ~(ECHO | ICANON | ISIG);
current_term_param.c_cc[VMIN] = 0;
current_term_param.c_cc[VTIME] = 0;
if(tcsetattr(0,TCSANOW,¤t_term_param) == -1)
return FAILED;
else
return SUCCESS;
}
int reset_mode(struct termios* old_term_param)
{
if (tcsetattr(STDIN_FILENO, TCSANOW, old_term_param) != 0)
return FAILED;
else
return SUCCESS;
}
--
--
※ 转寄:·UNIX编程 apue.dhs.org·[FROM: 210.39.3.50]
--
※ 转载:·荔园晨风BBS站 bbs.szu.edu.cn·[FROM: 192.168.0.146]
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