| chap.c (48817) | chap.c (49976) |
|---|---|
| 1/* 2 * PPP CHAP Module 3 * 4 * Written by Toshiharu OHNO (tony-o@iij.ad.jp) 5 * 6 * Copyright (C) 1993, Internet Initiative Japan, Inc. All rights reserverd. 7 * 8 * Redistribution and use in source and binary forms are permitted 9 * provided that the above copyright notice and this paragraph are 10 * duplicated in all such forms and that any documentation, 11 * advertising materials, and other materials related to such 12 * distribution and use acknowledge that the software was developed 13 * by the Internet Initiative Japan, Inc. The name of the 14 * IIJ may not be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 18 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 19 * | 1/* 2 * PPP CHAP Module 3 * 4 * Written by Toshiharu OHNO (tony-o@iij.ad.jp) 5 * 6 * Copyright (C) 1993, Internet Initiative Japan, Inc. All rights reserverd. 7 * 8 * Redistribution and use in source and binary forms are permitted 9 * provided that the above copyright notice and this paragraph are 10 * duplicated in all such forms and that any documentation, 11 * advertising materials, and other materials related to such 12 * distribution and use acknowledge that the software was developed 13 * by the Internet Initiative Japan, Inc. The name of the 14 * IIJ may not be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 18 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 19 * |
| 20 * $Id: chap.c,v 1.52 1999/06/09 08:47:29 brian Exp $ | 20 * $Id: chap.c,v 1.53 1999/07/15 02:02:51 brian Exp $ |
| 21 * 22 * TODO: 23 */ 24#include <sys/param.h> 25#include <netinet/in.h> 26#include <netinet/in_systm.h> 27#include <netinet/ip.h> 28#include <sys/un.h> 29 30#include <errno.h> 31#include <fcntl.h> 32#ifdef HAVE_DES 33#include <md4.h> 34#endif 35#include <md5.h> 36#include <paths.h> 37#include <signal.h> | 21 * 22 * TODO: 23 */ 24#include <sys/param.h> 25#include <netinet/in.h> 26#include <netinet/in_systm.h> 27#include <netinet/ip.h> 28#include <sys/un.h> 29 30#include <errno.h> 31#include <fcntl.h> 32#ifdef HAVE_DES 33#include <md4.h> 34#endif 35#include <md5.h> 36#include <paths.h> 37#include <signal.h> |
| 38#include <stdio.h> |
|
| 38#include <stdlib.h> 39#include <string.h> 40#include <sys/wait.h> 41#include <termios.h> 42#include <unistd.h> 43 44#include "layer.h" 45#include "mbuf.h" --- 180 unchanged lines hidden (view full) --- 226 close(out[1]); 227 chap->child.pid = 0; 228 return; 229 230 case 0: 231 timer_TermService(); 232 close(in[1]); 233 close(out[0]); | 39#include <stdlib.h> 40#include <string.h> 41#include <sys/wait.h> 42#include <termios.h> 43#include <unistd.h> 44 45#include "layer.h" 46#include "mbuf.h" --- 180 unchanged lines hidden (view full) --- 227 close(out[1]); 228 chap->child.pid = 0; 229 return; 230 231 case 0: 232 timer_TermService(); 233 close(in[1]); 234 close(out[0]); |
| 234 if (out[1] == STDIN_FILENO) { 235 fd = dup(out[1]); 236 close(out[1]); 237 out[1] = fd; 238 } | 235 if (out[1] == STDIN_FILENO) 236 out[1] = dup(out[1]); |
| 239 dup2(in[0], STDIN_FILENO); 240 dup2(out[1], STDOUT_FILENO); | 237 dup2(in[0], STDIN_FILENO); 238 dup2(out[1], STDOUT_FILENO); |
| 241 if ((fd = open(_PATH_DEVNULL, O_RDWR)) == -1) { | 239 close(STDERR_FILENO); 240 if (open(_PATH_DEVNULL, O_RDWR) != STDERR_FILENO) { |
| 242 log_Printf(LogALERT, "Chap: Failed to open %s: %s\n", 243 _PATH_DEVNULL, strerror(errno)); 244 exit(1); 245 } | 241 log_Printf(LogALERT, "Chap: Failed to open %s: %s\n", 242 _PATH_DEVNULL, strerror(errno)); 243 exit(1); 244 } |
| 246 dup2(fd, STDERR_FILENO); 247 fcntl(3, F_SETFD, 1); /* Set close-on-exec flag */ 248 | 245 for (fd = getdtablesize(); fd > STDERR_FILENO; fd--) 246 fcntl(fd, F_SETFD, 1); |
| 249 setuid(geteuid()); 250 argc = command_Interpret(prog, strlen(prog), argv); 251 command_Expand(nargv, argc, (char const *const *)argv, 252 chap->auth.physical->dl->bundle, 0, pid); 253 execvp(nargv[0], nargv); | 247 setuid(geteuid()); 248 argc = command_Interpret(prog, strlen(prog), argv); 249 command_Expand(nargv, argc, (char const *const *)argv, 250 chap->auth.physical->dl->bundle, 0, pid); 251 execvp(nargv[0], nargv); |
| 252 printf("exec() of %s failed: %s\n", nargv[0], strerror(errno)); 253 _exit(255); |
|
| 254 | 254 |
| 255 log_Printf(LogWARN, "exec() of %s failed: %s\n", 256 nargv[0], strerror(errno)); 257 exit(255); 258 | |
| 259 default: 260 close(in[0]); 261 close(out[1]); 262 chap->child.fd = out[0]; 263 chap->child.buf.len = 0; 264 write(in[1], chap->auth.in.name, strlen(chap->auth.in.name)); 265 write(in[1], "\n", 1); 266 write(in[1], chap->challenge.peer + 1, *chap->challenge.peer); --- 512 unchanged lines hidden --- | 255 default: 256 close(in[0]); 257 close(out[1]); 258 chap->child.fd = out[0]; 259 chap->child.buf.len = 0; 260 write(in[1], chap->auth.in.name, strlen(chap->auth.in.name)); 261 write(in[1], "\n", 1); 262 write(in[1], chap->challenge.peer + 1, *chap->challenge.peer); --- 512 unchanged lines hidden --- |