New upstream version 0.76

1 files changed, 0 insertions, 499 deletions

diff --git a/modules/pam_mail/pam_mail.c b/modules/pam_mail/pam_mail.c
deleted file mode 100644
index 35a6b9f2..00000000
--- a/modules/pam_mail/pam_mail.c
+++ /dev/null
@@ -1,499 +0,0 @@
-/* pam_mail module */
-
-/*
- * $Id$
- *
- * Written by Andrew Morgan <morgan@linux.kernel.org> 1996/3/11
- * $HOME additions by David Kinchlea <kinch@kinch.ark.com> 1997/1/7
- * mailhash additions by Chris Adams <cadams@ro.com> 1998/7/11
- */
-
-#include <security/_pam_aconf.h>
-
-#include <ctype.h>
-#include <pwd.h>
-#include <stdarg.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <syslog.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <unistd.h>
-#include <dirent.h>
-
-#ifdef WANT_PWDB
-#include <pwdb/pwdb_public.h>
-#endif
-
-#define DEFAULT_MAIL_DIRECTORY    PAM_PATH_MAILDIR
-#define MAIL_FILE_FORMAT          "%s%s/%s"
-#define MAIL_ENV_NAME             "MAIL"
-#define MAIL_ENV_FORMAT           MAIL_ENV_NAME "=%s"
-#define YOUR_MAIL_VERBOSE_FORMAT  "You have %s mail in %s."
-#define YOUR_MAIL_STANDARD_FORMAT "You have %smail."
-#define NO_MAIL_STANDARD_FORMAT   "No mail." 
-
-/*
- * 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_SESSION
-#define PAM_SM_AUTH
-
-#include <security/pam_modules.h>
-#include <security/_pam_macros.h>
-
-/* some syslogging */
-
-static void _log_err(int err, const char *format, ...)
-{
-    va_list args;
-
-    va_start(args, format);
-    openlog("PAM-mail", LOG_CONS|LOG_PID, LOG_AUTH);
-    vsyslog(err, format, args);
-    va_end(args);
-    closelog();
-}
-
-/* argument parsing */
-
-#define PAM_DEBUG_ARG		0x0001
-#define PAM_NO_LOGIN		0x0002
-#define PAM_LOGOUT_TOO		0x0004
-#define PAM_NEW_MAIL_DIR	0x0010
-#define PAM_MAIL_SILENT		0x0020
-#define PAM_NO_ENV		0x0040
-#define PAM_HOME_MAIL		0x0100
-#define PAM_EMPTY_TOO		0x0200
-#define PAM_STANDARD_MAIL	0x0400
-#define PAM_QUIET_MAIL		0x1000
-
-static int _pam_parse(int flags, int argc, const char **argv, char **maildir,
-		      int *hashcount)
-{
-    int ctrl=0;
-
-    if (flags & PAM_SILENT) {
-	ctrl |= PAM_MAIL_SILENT;
-    }
-
-    *hashcount = 0;
-
-    /* step through arguments */
-    for (; argc-- > 0; ++argv) {
-
-	/* generic options */
-
-	if (!strcmp(*argv,"debug"))
-	    ctrl |= PAM_DEBUG_ARG;
-	else if (!strcmp(*argv,"quiet"))
-	    ctrl |= PAM_QUIET_MAIL;
-	else if (!strcmp(*argv,"standard"))
-	    ctrl |= PAM_STANDARD_MAIL | PAM_EMPTY_TOO;
-	else if (!strncmp(*argv,"dir=",4)) {
-	    *maildir = x_strdup(4+*argv);
-	    if (*maildir != NULL) {
-		D(("new mail directory: %s", *maildir));
-		ctrl |= PAM_NEW_MAIL_DIR;
-	    } else {
-		_log_err(LOG_CRIT,
-			 "failed to duplicate mail directory - ignored");
-	    }
-	} else if (!strncmp(*argv,"hash=",5)) {
-	    char *ep = NULL;
-	    *hashcount = strtol(*argv+5,&ep,10);
-	    if (!ep || (*hashcount < 0)) {
-		*hashcount = 0;
-	    }
-	} else if (!strcmp(*argv,"close")) {
-	    ctrl |= PAM_LOGOUT_TOO;
-	} else if (!strcmp(*argv,"nopen")) {
-	    ctrl |= PAM_NO_LOGIN;
-	} else if (!strcmp(*argv,"noenv")) {
-	    ctrl |= PAM_NO_ENV;
-	} else if (!strcmp(*argv,"empty")) {
-	    ctrl |= PAM_EMPTY_TOO;
-	} else {
-	    _log_err(LOG_ERR,"pam_parse: unknown option; %s",*argv);
-	}
-    }
-
-    if ((*hashcount != 0) && !(ctrl & PAM_NEW_MAIL_DIR)) {
-	*maildir = x_strdup(DEFAULT_MAIL_DIRECTORY);
-	ctrl |= PAM_NEW_MAIL_DIR;
-    }
-
-    return ctrl;
-}
-
-/* a front end for conversations */
-
-static int converse(pam_handle_t *pamh, int ctrl, int nargs
-		    , struct pam_message **message
-		    , struct pam_response **response)
-{
-    int retval;
-    struct pam_conv *conv;
-
-    D(("begin to converse"));
-
-    retval = pam_get_item( pamh, PAM_CONV, (const void **) &conv ) ; 
-    if ( retval == PAM_SUCCESS ) {
-
-	retval = conv->conv(nargs, ( const struct pam_message ** ) message
-			    , response, conv->appdata_ptr);
-
-	D(("returned from application's conversation function"));
-
-	if (retval != PAM_SUCCESS && (PAM_DEBUG_ARG & ctrl) ) {
-	    _log_err(LOG_DEBUG, "conversation failure [%s]"
-		     , pam_strerror(pamh, retval));
-	}
-
-    } else {
-	_log_err(LOG_ERR, "couldn't obtain coversation function [%s]"
-		 , pam_strerror(pamh, retval));
-    }
-
-    D(("ready to return from module conversation"));
-
-    return retval;                  /* propagate error status */
-}
-
-static int get_folder(pam_handle_t *pamh, int ctrl,
-		      char **path_mail, char **folder_p, int hashcount)
-{
-    int retval;
-    const char *user, *path;
-    char *folder;
-    const struct passwd *pwd=NULL;
-
-    retval = pam_get_user(pamh, &user, NULL);
-    if (retval != PAM_SUCCESS || user == NULL) {
-	_log_err(LOG_ERR, "no user specified");
-	return PAM_USER_UNKNOWN;
-    }
-
-    if (ctrl & PAM_NEW_MAIL_DIR) {
-	path = *path_mail;
-	if (*path == '~') {       /* support for $HOME delivery */
-	    pwd = getpwnam(user);
-	    if (pwd == NULL) {
-		_log_err(LOG_ERR, "user [%s] unknown", user);
-		_pam_overwrite(*path_mail);
-		_pam_drop(*path_mail);
-		return PAM_USER_UNKNOWN;
-	    }
-	    /*
-	     * "~/xxx" and "~xxx" are treated as same
-	     */
-	    if (!*++path || (*path == '/' && !*++path)) {
-		_log_err(LOG_ALERT, "badly formed mail path [%s]", *path_mail);
-		_pam_overwrite(*path_mail);
-		_pam_drop(*path_mail);
-		return PAM_ABORT;
-	    }
-	    ctrl |= PAM_HOME_MAIL;
-	    if (hashcount != 0) {
-		_log_err(LOG_ALERT, "can't do hash= and home directory mail");
-	    }
-	}
-    } else {
-	path = DEFAULT_MAIL_DIRECTORY;
-    }
-
-    /* put folder together */
-
-    if (ctrl & PAM_HOME_MAIL) {
-	folder = malloc(sizeof(MAIL_FILE_FORMAT)
-			+strlen(pwd->pw_dir)+strlen(path));
-    } else {
-	folder = malloc(sizeof(MAIL_FILE_FORMAT)+strlen(path)+strlen(user)
-			+2*hashcount);
-    }
-
-    if (folder != NULL) {
-	if (ctrl & PAM_HOME_MAIL) {
-	    sprintf(folder, MAIL_FILE_FORMAT, pwd->pw_dir, "", path);
-	} else {
-	    int i;
-	    char *hash = malloc(2*hashcount+1);
-
-	    if (hash) {
-		for (i = 0; i < hashcount; i++) {
-		    hash[2*i] = '/';
-		    hash[2*i+1] = user[i];
-		}
-		hash[2*i] = '\0';
-		sprintf(folder, MAIL_FILE_FORMAT, path, hash, user);
-		_pam_overwrite(hash);
-		_pam_drop(hash);
-	    } else {
-		sprintf(folder, "error");
-	    }
-	}
-	D(("folder =[%s]", folder));
-    }
-
-    /* tidy up */
-
-    _pam_overwrite(*path_mail);
-    _pam_drop(*path_mail);
-    user = NULL;
-
-    if (folder == NULL) {
-	_log_err(LOG_CRIT, "out of memory for mail folder");
-	return PAM_BUF_ERR;
-    }
-
-    *folder_p = folder;
-    folder = NULL;
-
-    return PAM_SUCCESS;
-}
-
-static const char *get_mail_status(int ctrl, const char *folder)
-{
-    const char *type = NULL;
-    static char dir[256];
-    struct stat mail_st;
-    struct dirent **namelist;
-    int i;
-
-    if (stat(folder, &mail_st) == 0) {
-	if (S_ISDIR(mail_st.st_mode)) { /* Assume Maildir format */
-	    sprintf(dir, "%.250s/new", folder);
-	    i = scandir(dir, &namelist, 0, alphasort);
-	    if (i > 2) {
-		type = "new";
-		while (--i)
-		    free(namelist[i]);
-	    } else {
-		while (--i >= 0)
-		    free(namelist[i]);
-		sprintf(dir, "%.250s/cur", folder);
-		i = scandir(dir, &namelist, 0, alphasort);
-		if (i > 2) {
-		    type = "old";
-		    while (--i)
-			free(namelist[i]);
-		} else if (ctrl & PAM_EMPTY_TOO) {
-		    while (--i >= 0)
-			free(namelist[i]);
-		    type = "no";
-		} else {
-		    type = NULL;
-		}
-	    }
-	} else {
-	    if (mail_st.st_size > 0) {
-		if (mail_st.st_atime < mail_st.st_mtime) /* new */
-		    type = (ctrl & PAM_STANDARD_MAIL) ? "new " : "new";
-		else /* old */
-		    type = (ctrl & PAM_STANDARD_MAIL) ? "" : "old";
-	    } else if (ctrl & PAM_EMPTY_TOO) {
-		type = "no";
-	    } else {
-		type = NULL;
-	    }
-	}
-    }
-
-    memset(dir, 0, 256);
-    memset(&mail_st, 0, sizeof(mail_st));
-    D(("user has %s mail in %s folder", type, folder));
-    return type;
-}
-
-static int report_mail(pam_handle_t *pamh, int ctrl
-		       , const char *type, const char *folder)
-{
-    int retval;
-
-    if (!(ctrl & PAM_MAIL_SILENT) || ((ctrl & PAM_QUIET_MAIL) && strcmp(type, "new"))) {
-	char *remark;
-
-	if (ctrl & PAM_STANDARD_MAIL)
-	    if (!strcmp(type, "no"))
-		remark = malloc(strlen(NO_MAIL_STANDARD_FORMAT)+1);
-	    else
-		remark = malloc(strlen(YOUR_MAIL_STANDARD_FORMAT)+strlen(type)+1);
-	else
-	    remark = malloc(strlen(YOUR_MAIL_VERBOSE_FORMAT)+strlen(type)+strlen(folder)+1);
-	if (remark == NULL) {
-	    retval = PAM_BUF_ERR;
-	} else {
-	    struct pam_message msg[1], *mesg[1];
-	    struct pam_response *resp=NULL;
-
-	    if (ctrl & PAM_STANDARD_MAIL)
-		if (!strcmp(type, "no"))
-		    sprintf(remark, NO_MAIL_STANDARD_FORMAT);
-		else
-		    sprintf(remark, YOUR_MAIL_STANDARD_FORMAT, type);
-	    else
-		sprintf(remark, YOUR_MAIL_VERBOSE_FORMAT, type, folder);
-
-	    mesg[0] = &msg[0];
-	    msg[0].msg_style = PAM_TEXT_INFO;
-	    msg[0].msg = remark;
-
-	    retval = converse(pamh, ctrl, 1, mesg, &resp);
-
-	    _pam_overwrite(remark);
-	    _pam_drop(remark);
-	    if (resp)
-		_pam_drop_reply(resp, 1);
-	}
-    } else {
-	D(("keeping quiet"));
-	retval = PAM_SUCCESS;
-    }
-
-    D(("returning %s", pam_strerror(pamh, retval)));
-    return retval;
-}
-
-static int _do_mail(pam_handle_t *, int, int, const char **, int);
-
-/* --- authentication functions --- */
-
-PAM_EXTERN
-int pam_sm_authenticate(pam_handle_t *pamh,int flags,int argc,
-    const char **argv)
-{
-    return PAM_IGNORE;
-}
-
-/* Checking mail as part of authentication */
-PAM_EXTERN
-int pam_sm_setcred(pam_handle_t *pamh, int flags, int argc,
-    const char **argv)
-{
-    if (!(flags & (PAM_ESTABLISH_CRED|PAM_DELETE_CRED)))
-      return PAM_IGNORE;
-    return _do_mail(pamh,flags,argc,argv,(flags & PAM_ESTABLISH_CRED));
-}
-
-/* --- session management functions --- */
-
-PAM_EXTERN
-int pam_sm_close_session(pam_handle_t *pamh,int flags,int argc
-			 ,const char **argv)
-{
-    return _do_mail(pamh,flags,argc,argv,0);;
-}
-
-/* Checking mail as part of the session management */
-PAM_EXTERN
-int pam_sm_open_session(pam_handle_t *pamh, int flags, int argc,
-    const char **argv)
-{
-    return _do_mail(pamh,flags,argc,argv,1);
-}
-
-
-/* --- The Beaf (Tm) --- */
-
-static int _do_mail(pam_handle_t *pamh, int flags, int argc,
-    const char **argv, int est)
-{
-    int retval, ctrl, hashcount;
-    char *path_mail=NULL, *folder;
-    const char *type;
-
-    /*
-     * this module (un)sets the MAIL environment variable, and checks if
-     * the user has any new mail.
-     */
-
-    ctrl = _pam_parse(flags, argc, argv, &path_mail, &hashcount);
-
-    /* Do we have anything to do? */
-
-    if (flags & PAM_SILENT)
-	return PAM_SUCCESS;
-
-    /* which folder? */
-
-    retval = get_folder(pamh, ctrl, &path_mail, &folder, hashcount);
-    if (retval != PAM_SUCCESS) {
-	D(("failed to find folder"));
-	return retval;
-    }
-
-    /* set the MAIL variable? */
-
-    if (!(ctrl & PAM_NO_ENV) && est) {
-	char *tmp;
-
-	tmp = malloc(strlen(folder)+sizeof(MAIL_ENV_FORMAT));
-	if (tmp != NULL) {
-	    sprintf(tmp, MAIL_ENV_FORMAT, folder);
-	    D(("setting env: %s", tmp));
-	    retval = pam_putenv(pamh, tmp);
-	    _pam_overwrite(tmp);
-	    _pam_drop(tmp);
-	    if (retval != PAM_SUCCESS) {
-		_pam_overwrite(folder);
-		_pam_drop(folder);
-		_log_err(LOG_CRIT, "unable to set " MAIL_ENV_NAME " variable");
-		return retval;
-	    }
-	} else {
-	    _log_err(LOG_CRIT, "no memory for " MAIL_ENV_NAME " variable");
-	    _pam_overwrite(folder);
-	    _pam_drop(folder);
-	    return retval;
-	}
-    } else {
-	D(("not setting " MAIL_ENV_NAME " variable"));
-    }
-
-    /*
-     * OK. we've got the mail folder... what about its status?
-     */
-
-    if ((est && !(ctrl & PAM_NO_LOGIN))
-	|| (!est && (ctrl & PAM_LOGOUT_TOO))) {
-	type = get_mail_status(ctrl, folder);
-	if (type != NULL) {
-	    retval = report_mail(pamh, ctrl, type, folder);
-	    type = NULL;
-	}
-    }
-    
-    /* Delete environment variable? */  
-    if (!est)
-	(void) pam_putenv(pamh, MAIL_ENV_NAME);
-
-    _pam_overwrite(folder); /* clean up */
-    _pam_drop(folder);
-
-    /* indicate success or failure */
-
-    return retval;
-}
-
-#ifdef PAM_STATIC
-
-/* static module data */
-
-struct pam_module _pam_mail_modstruct = {
-     "pam_mail",
-     pam_sm_authenticate,
-     pam_sm_setcred,
-     NULL,
-     pam_sm_open_session,
-     pam_sm_close_session,
-     NULL,
-};
-
-#endif
-
-/* end of module definition */