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comparison toys/other/login.c @ 674:7e846e281e38

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New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate.
author Rob Landley <rob@landley.net>
date Mon, 08 Oct 2012 00:02:30 -0500
parents 6df4ccc0acbe
children 786841fdb1e0
comparison
equal deleted inserted replaced
673:c102f31a753e 674:7e846e281e38
19 -p Preserve environment 19 -p Preserve environment
20 -h The name of the remote host for this login 20 -h The name of the remote host for this login
21 -f Do not perform authentication 21 -f Do not perform authentication
22 */ 22 */
23 23
24 #define FOR_login
24 #include "toys.h" 25 #include "toys.h"
25 26
26 #define LOGIN_TIMEOUT 60 27 #define LOGIN_TIMEOUT 60
27 #define LOGIN_FAIL_TIMEOUT 3 28 #define LOGIN_FAIL_TIMEOUT 3
28 #define USER_NAME_MAX_SIZE 32 29 #define USER_NAME_MAX_SIZE 32
29 #define HOSTNAME_SIZE 32 30 #define HOSTNAME_SIZE 32
30 31
31 DEFINE_GLOBALS( 32 GLOBALS(
32 char *hostname; 33 char *hostname;
33 ) 34 )
34 #define TT this.login
35 35
36 static void login_timeout_handler(int sig __attribute__((unused))) 36 static void login_timeout_handler(int sig __attribute__((unused)))
37 { 37 {
38 printf("\nLogin timed out after %d seconds.\n", LOGIN_TIMEOUT); 38 printf("\nLogin timed out after %d seconds.\n", LOGIN_TIMEOUT);
39 exit(0); 39 exit(0);
160 setenv("SHELL", pwd->pw_shell, 1); 160 setenv("SHELL", pwd->pw_shell, 1);
161 } 161 }
162 162
163 void login_main(void) 163 void login_main(void)
164 { 164 {
165 int f_flag = (toys.optflags & 4) >> 2; 165 int f_flag = toys.optflags & FLAG_f;
166 int p_flag = (toys.optflags & 2) >> 1; 166 int h_flag = toys.optflags & FLAG_h;
167 int h_flag = toys.optflags & 1;
168 char username[USER_NAME_MAX_SIZE+1], *pass = NULL, **ss; 167 char username[USER_NAME_MAX_SIZE+1], *pass = NULL, **ss;
169 struct passwd * pwd = NULL; 168 struct passwd * pwd = NULL;
170 struct spwd * spwd = NULL; 169 struct spwd * spwd = NULL;
171 int auth_fail_cnt = 0; 170 int auth_fail_cnt = 0;
172 171
213 query_pass: 212 query_pass:
214 if (!verify_password(pass)) break; 213 if (!verify_password(pass)) break;
215 214
216 f_flag = 0; 215 f_flag = 0;
217 syslog(LOG_WARNING, "invalid password for '%s' on %s %s %s", username, 216 syslog(LOG_WARNING, "invalid password for '%s' on %s %s %s", username,
218 ttyname(0), (h_flag)?"from":"", (h_flag)?TT.hostname:""); 217 ttyname(0), h_flag?"from":"", h_flag?TT.hostname:"");
219 218
220 sleep(LOGIN_FAIL_TIMEOUT); 219 sleep(LOGIN_FAIL_TIMEOUT);
221 puts("Login incorrect"); 220 puts("Login incorrect");
222 221
223 if (++auth_fail_cnt == 3) 222 if (++auth_fail_cnt == 3)
232 231
233 if (pwd->pw_uid) handle_nologin(); 232 if (pwd->pw_uid) handle_nologin();
234 233
235 if (change_identity(pwd)) error_exit("Failed to change identity"); 234 if (change_identity(pwd)) error_exit("Failed to change identity");
236 235
237 setup_environment(pwd, !p_flag); 236 setup_environment(pwd, !(toys.optflags & FLAG_p));
238 237
239 handle_motd(); 238 handle_motd();
240 239
241 syslog(LOG_INFO, "%s logged in on %s %s %s", pwd->pw_name, 240 syslog(LOG_INFO, "%s logged in on %s %s %s", pwd->pw_name,
242 ttyname(0), (h_flag)?"from":"", (h_flag)?TT.hostname:""); 241 ttyname(0), h_flag?"from":"", h_flag?TT.hostname:"");
243 242
244 spawn_shell(pwd->pw_shell); 243 spawn_shell(pwd->pw_shell);
245 } 244 }