diff options
Diffstat (limited to 'contrib/libpam/modules/pam_shells/pam_shells.c')
-rw-r--r-- | contrib/libpam/modules/pam_shells/pam_shells.c | 131 |
1 files changed, 0 insertions, 131 deletions
diff --git a/contrib/libpam/modules/pam_shells/pam_shells.c b/contrib/libpam/modules/pam_shells/pam_shells.c deleted file mode 100644 index edc9134..0000000 --- a/contrib/libpam/modules/pam_shells/pam_shells.c +++ /dev/null @@ -1,131 +0,0 @@ -/* pam_securetty module */ - -#define SHELL_FILE "/etc/shells" - -/* - * by Erik Troan <ewt@redhat.com>, Red Hat Software. - * August 5, 1996. - * This code shamelessly ripped from the pam_securetty module. - */ - -#include <pwd.h> -#include <stdarg.h> -#include <stdio.h> -#include <stdlib.h> -#include <sys/stat.h> -#include <syslog.h> -#include <unistd.h> - -/* - * here, we make a definition for the externally accessible function - * in this file (this definition is required for static a module - * but strongly encouraged generally) it is used to instruct the - * modules include file to define the function prototypes. - */ - -#define PAM_SM_AUTH - -#include <security/pam_modules.h> - -/* some syslogging */ - -static void _pam_log(int err, const char *format, ...) -{ - va_list args; - - va_start(args, format); - openlog("PAM-shells", LOG_CONS|LOG_PID, LOG_AUTH); - vsyslog(err, format, args); - va_end(args); - closelog(); -} - -/* --- authentication management functions (only) --- */ - -PAM_EXTERN -int pam_sm_authenticate(pam_handle_t *pamh,int flags,int argc - ,const char **argv) -{ - int retval = PAM_AUTH_ERR; - const char *userName; - char *userShell; - char shellFileLine[256]; - struct stat sb; - struct passwd * pw; - FILE * shellFile; - - retval = pam_get_user(pamh,&userName,NULL); - if(retval != PAM_SUCCESS) - return PAM_SERVICE_ERR; - - if(!userName || (strlen(userName) <= 0)) { - /* Don't let them use a NULL username... */ - pam_get_user(pamh,&userName,NULL); - if (retval != PAM_SUCCESS) - return PAM_SERVICE_ERR; - } - - pw = getpwnam(userName); - if (!pw) - return PAM_AUTH_ERR; /* user doesn't exist */ - userShell = pw->pw_shell; - - if(stat(SHELL_FILE,&sb)) { - _pam_log(LOG_ERR, SHELL_FILE, " cannot be stat'd (it probably does " - "not exist)"); - return PAM_AUTH_ERR; /* must have /etc/shells */ - } - - if((sb.st_mode & S_IWOTH) || !S_ISREG(sb.st_mode)) { - _pam_log(LOG_ERR, - SHELL_FILE " is either world writable or not a normal file"); - return PAM_AUTH_ERR; - } - - shellFile = fopen(SHELL_FILE,"r"); - if(shellFile == NULL) { /* Check that we opened it successfully */ - _pam_log(LOG_ERR, - "Error opening " SHELL_FILE); - return PAM_SERVICE_ERR; - } - /* There should be no more errors from here on */ - retval=PAM_AUTH_ERR; - /* This loop assumes that PAM_SUCCESS == 0 - and PAM_AUTH_ERR != 0 */ - while((fgets(shellFileLine,255,shellFile) != NULL) - && retval) { - if (shellFileLine[strlen(shellFileLine) - 1] == '\n') - shellFileLine[strlen(shellFileLine) - 1] = '\0'; - retval = strcmp(shellFileLine, userShell); - } - fclose(shellFile); - if(retval) - retval = PAM_AUTH_ERR; - return retval; -} - -PAM_EXTERN -int pam_sm_setcred(pam_handle_t *pamh,int flags,int argc - ,const char **argv) -{ - return PAM_SUCCESS; -} - - -#ifdef PAM_STATIC - -/* static module data */ - -struct pam_module _pam_shells_modstruct = { - "pam_shells", - pam_sm_authenticate, - pam_sm_setcred, - NULL, - NULL, - NULL, - NULL, -}; - -#endif - -/* end of module definition */ |