/* mailcheck.c -- The check is in the mail... */
-/* Copyright (C) 1987,1989 Free Software Foundation, Inc.
+/* Copyright (C) 1987-2009 Free Software Foundation, Inc.
-This file is part of GNU Bash, the Bourne Again SHell.
+ This file is part of GNU Bash, the Bourne Again SHell.
-Bash is free software; you can redistribute it and/or modify it under
-the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 1, or (at your option) any later
-version.
+ Bash is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
-Bash is distributed in the hope that it will be useful, but WITHOUT ANY
-WARRANTY; without even the implied warranty of MERCHANTABILITY or
-FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-for more details.
+ Bash is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-You should have received a copy of the GNU General Public License along
-with Bash; see the file COPYING. If not, write to the Free Software
-Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+ You should have received a copy of the GNU General Public License
+ along with Bash. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "config.h"
#include <stdio.h>
#include "bashtypes.h"
#include "posixstat.h"
-#include <sys/param.h>
+#if defined (HAVE_SYS_PARAM_H)
+# include <sys/param.h>
+#endif
+#if defined (HAVE_UNISTD_H)
+# include <unistd.h>
+#endif
+#include "posixtime.h"
#include "bashansi.h"
+#include "bashintl.h"
+
#include "shell.h"
-#include "maxpath.h"
#include "execute_cmd.h"
+#include "mailcheck.h"
#include <tilde/tilde.h>
-#ifndef NOW
-#define NOW ((time_t)time ((time_t *)0))
-#endif
+/* Values for flags word in struct _fileinfo */
+#define MBOX_INITIALIZED 0x01
+
+extern time_t shell_start_time;
-typedef struct {
+extern int mailstat __P((const char *, struct stat *));
+
+typedef struct _fileinfo {
char *name;
+ char *msg;
time_t access_time;
time_t mod_time;
- long file_size;
+ off_t file_size;
+ int flags;
} FILEINFO;
/* The list of remembered mail files. */
-FILEINFO **mailfiles = (FILEINFO **)NULL;
+static FILEINFO **mailfiles = (FILEINFO **)NULL;
/* Number of mail files that we have. */
-int mailfiles_count = 0;
+static int mailfiles_count;
/* The last known time that mail was checked. */
-int last_time_mail_checked = 0;
+static time_t last_time_mail_checked = 0;
+
+/* Non-zero means warn if a mail file has been read since last checked. */
+int mail_warning;
+
+static int find_mail_file __P((char *));
+static void init_mail_file __P((int));
+static void update_mail_file __P((int));
+static int add_mail_file __P((char *, char *));
+
+static FILEINFO *alloc_mail_file __P((char *, char *));
+static void dispose_mail_file __P((FILEINFO *));
+
+static int file_mod_date_changed __P((int));
+static int file_access_date_changed __P((int));
+static int file_has_grown __P((int));
+
+static char *parse_mailpath_spec __P((char *));
/* Returns non-zero if it is time to check mail. */
int
time_to_check_mail ()
{
- char *temp = get_string_value ("MAILCHECK");
- time_t now = NOW;
- long seconds = -1L;
+ char *temp;
+ time_t now;
+ intmax_t seconds;
- /* Skip leading whitespace in MAILCHECK. */
- if (temp)
- {
- while (whitespace (*temp))
- temp++;
-
- seconds = atoi (temp);
- }
+ temp = get_string_value ("MAILCHECK");
/* Negative number, or non-numbers (such as empty string) cause no
checking to take place. */
- if (seconds < 0)
+ if (temp == 0 || legal_number (temp, &seconds) == 0 || seconds < 0)
return (0);
+ now = NOW;
/* Time to check if MAILCHECK is explicitly set to zero, or if enough
time has passed since the last check. */
- return (!seconds || ((now - last_time_mail_checked) >= seconds));
+ return (seconds == 0 || ((now - last_time_mail_checked) >= seconds));
}
/* Okay, we have checked the mail. Perhaps I should make this function
register int i;
for (i = 0; i < mailfiles_count; i++)
- if (STREQ ((mailfiles[i])->name, file))
+ if (STREQ (mailfiles[i]->name, file))
return i;
return -1;
}
+#define RESET_MAIL_FILE(i) \
+ do \
+ { \
+ mailfiles[i]->access_time = mailfiles[i]->mod_time = 0; \
+ mailfiles[i]->file_size = 0; \
+ mailfiles[i]->flags = 0; \
+ } \
+ while (0)
+
+#define UPDATE_MAIL_FILE(i, finfo) \
+ do \
+ { \
+ mailfiles[i]->access_time = finfo.st_atime; \
+ mailfiles[i]->mod_time = finfo.st_mtime; \
+ mailfiles[i]->file_size = finfo.st_size; \
+ mailfiles[i]->flags |= MBOX_INITIALIZED; \
+ } \
+ while (0)
+
+static void
+init_mail_file (i)
+ int i;
+{
+ mailfiles[i]->access_time = mailfiles[i]->mod_time = last_time_mail_checked ? last_time_mail_checked : shell_start_time;
+ mailfiles[i]->file_size = 0;
+ mailfiles[i]->flags = 0;
+}
+
+static void
+update_mail_file (i)
+ int i;
+{
+ char *file;
+ struct stat finfo;
+
+ file = mailfiles[i]->name;
+ if (mailstat (file, &finfo) == 0)
+ UPDATE_MAIL_FILE (i, finfo);
+ else
+ RESET_MAIL_FILE (i);
+}
+
/* Add this file to the list of remembered files and return its index
in the list of mail files. */
static int
-add_mail_file (file)
- char *file;
+add_mail_file (file, msg)
+ char *file, *msg;
{
struct stat finfo;
char *filename;
int i;
filename = full_pathname (file);
- i = find_mail_file (file);
- if (i > -1)
+ i = find_mail_file (filename);
+ if (i >= 0)
{
- if (stat (filename, &finfo) == 0)
- {
- mailfiles[i]->mod_time = finfo.st_mtime;
- mailfiles[i]->access_time = finfo.st_atime;
- mailfiles[i]->file_size = (long)finfo.st_size;
- }
+ if (mailstat (filename, &finfo) == 0)
+ UPDATE_MAIL_FILE (i, finfo);
+
free (filename);
return i;
}
mailfiles = (FILEINFO **)xrealloc
(mailfiles, mailfiles_count * sizeof (FILEINFO *));
- mailfiles[i] = (FILEINFO *)xmalloc (sizeof (FILEINFO));
- mailfiles[i]->name = filename;
- if (stat (filename, &finfo) == 0)
- {
- mailfiles[i]->access_time = finfo.st_atime;
- mailfiles[i]->mod_time = finfo.st_mtime;
- mailfiles[i]->file_size = finfo.st_size;
- }
- else
- {
- mailfiles[i]->access_time = mailfiles[i]->mod_time = (time_t)-1;
- mailfiles[i]->file_size = -1L;
- }
+ mailfiles[i] = alloc_mail_file (filename, msg);
+ init_mail_file (i);
+
return i;
}
register int i;
for (i = 0; i < mailfiles_count; i++)
- {
- mailfiles[i]->access_time = mailfiles[i]->mod_time = 0;
- mailfiles[i]->file_size = 0L;
- }
+ RESET_MAIL_FILE (i);
+}
+
+static FILEINFO *
+alloc_mail_file (filename, msg)
+ char *filename, *msg;
+{
+ FILEINFO *mf;
+
+ mf = (FILEINFO *)xmalloc (sizeof (FILEINFO));
+ mf->name = filename;
+ mf->msg = msg ? savestring (msg) : (char *)NULL;
+ mf->flags = 0;
+
+ return mf;
+}
+
+static void
+dispose_mail_file (mf)
+ FILEINFO *mf;
+{
+ free (mf->name);
+ FREE (mf->msg);
+ free (mf);
}
/* Free the information that we have about the remembered mail files. */
register int i;
for (i = 0; i < mailfiles_count; i++)
- {
- free (mailfiles[i]->name);
- free (mailfiles[i]);
- }
+ dispose_mail_file (mailfiles[i]);
if (mailfiles)
free (mailfiles);
mailfiles = (FILEINFO **)NULL;
}
+void
+init_mail_dates ()
+{
+ if (mailfiles == 0)
+ remember_mail_dates ();
+}
+
/* Return non-zero if FILE's mod date has changed and it has not been
- accessed since modified. */
+ accessed since modified. If the size has dropped to zero, reset
+ the cached mail file info. */
static int
-file_mod_date_changed (file)
- char *file;
+file_mod_date_changed (i)
+ int i;
{
- time_t time = (time_t)0;
+ time_t mtime;
struct stat finfo;
- int i;
+ char *file;
- i = find_mail_file (file);
- if (i != -1)
- time = mailfiles[i]->mod_time;
+ file = mailfiles[i]->name;
+ mtime = mailfiles[i]->mod_time;
+
+ if (mailstat (file, &finfo) != 0)
+ return (0);
- if ((stat (file, &finfo) == 0) && (finfo.st_size > 0))
- return (time != finfo.st_mtime);
+ if (finfo.st_size > 0)
+ return (mtime < finfo.st_mtime);
+
+ if (finfo.st_size == 0 && mailfiles[i]->file_size > 0)
+ UPDATE_MAIL_FILE (i, finfo);
return (0);
}
/* Return non-zero if FILE's access date has changed. */
static int
-file_access_date_changed (file)
- char *file;
+file_access_date_changed (i)
+ int i;
{
- time_t time = (time_t)0;
+ time_t atime;
struct stat finfo;
- int i;
+ char *file;
- i = find_mail_file (file);
- if (i != -1)
- time = mailfiles[i]->access_time;
+ file = mailfiles[i]->name;
+ atime = mailfiles[i]->access_time;
- if ((stat (file, &finfo) == 0) && (finfo.st_size > 0))
- return (time != finfo.st_atime);
+ if (mailstat (file, &finfo) != 0)
+ return (0);
+
+ if (finfo.st_size > 0)
+ return (atime < finfo.st_atime);
return (0);
}
/* Return non-zero if FILE's size has increased. */
static int
-file_has_grown (file)
- char *file;
+file_has_grown (i)
+ int i;
{
- long size = 0L;
+ off_t size;
struct stat finfo;
- int i;
+ char *file;
- i = find_mail_file (file);
- if (i != -1)
- size = mailfiles[i]->file_size;
+ file = mailfiles[i]->name;
+ size = mailfiles[i]->file_size;
- return ((stat (file, &finfo) == 0) && (finfo.st_size > size));
-}
-
-char *
-make_default_mailpath ()
-{
- char *mp;
-
- mp = xmalloc (1 + sizeof (DEFAULT_MAIL_PATH) + strlen (current_user.user_name));
- strcpy (mp, DEFAULT_MAIL_PATH);
- strcpy (mp + sizeof (DEFAULT_MAIL_PATH) - 1, current_user.user_name);
- return (mp);
-}
-
-/* Return the colon separated list of pathnames to check for mail. */
-static char *
-get_mailpaths ()
-{
- char *mailpaths;
-
- mailpaths = get_string_value ("MAILPATH");
-
- if (!mailpaths)
- mailpaths = get_string_value ("MAIL");
-
- if (mailpaths)
- return (savestring (mailpaths));
-
- return (make_default_mailpath ());
+ return ((mailstat (file, &finfo) == 0) && (finfo.st_size > size));
}
/* Take an element from $MAILPATH and return the portion from
continue;
}
if (*s == '?' || *s == '%')
- return s;
+ return s;
}
return ((char *)NULL);
}
-
+
+char *
+make_default_mailpath ()
+{
+#if defined (DEFAULT_MAIL_DIRECTORY)
+ char *mp;
+
+ get_current_user_info ();
+ mp = (char *)xmalloc (2 + sizeof (DEFAULT_MAIL_DIRECTORY) + strlen (current_user.user_name));
+ strcpy (mp, DEFAULT_MAIL_DIRECTORY);
+ mp[sizeof(DEFAULT_MAIL_DIRECTORY) - 1] = '/';
+ strcpy (mp + sizeof (DEFAULT_MAIL_DIRECTORY), current_user.user_name);
+ return (mp);
+#else
+ return ((char *)NULL);
+#endif
+}
+
/* Remember the dates of the files specified by MAILPATH, or if there is
no MAILPATH, by the file specified in MAIL. If neither exists, use a
default value, which we randomly concoct from using Unix. */
+
void
remember_mail_dates ()
{
char *mailfile, *mp;
int i = 0;
- mailpaths = get_mailpaths ();
+ mailpaths = get_string_value ("MAILPATH");
+
+ /* If no $MAILPATH, but $MAIL, use that as a single filename to check. */
+ if (mailpaths == 0 && (mailpaths = get_string_value ("MAIL")))
+ {
+ add_mail_file (mailpaths, (char *)NULL);
+ return;
+ }
+
+ if (mailpaths == 0)
+ {
+ mailpaths = make_default_mailpath ();
+ if (mailpaths)
+ {
+ add_mail_file (mailpaths, (char *)NULL);
+ free (mailpaths);
+ }
+ return;
+ }
+
while (mailfile = extract_colon_unit (mailpaths, &i))
{
mp = parse_mailpath_spec (mailfile);
if (mp && *mp)
- *mp = '\0';
- add_mail_file (mailfile);
+ *mp++ = '\0';
+ add_mail_file (mailfile, mp);
free (mailfile);
}
- free (mailpaths);
}
/* check_mail () is useful for more than just checking mail. Since it has
/* Check for mail in some files. If the modification date of any
of the files in MAILPATH has changed since we last did a
remember_mail_dates () then mention that the user has mail.
- Special hack: If the shell variable MAIL_WARNING is on and the
+ Special hack: If the variable MAIL_WARNING is non-zero and the
mail file has been accessed since the last time we remembered, then
the message "The mail in <mailfile> has been read" is printed. */
void
check_mail ()
{
- char *current_mail_file, *you_have_mail_message;
- char *mailpaths, *mp;
- int file_index = 0;
- char *dollar_underscore;
+ char *current_mail_file, *message;
+ int i, use_user_notification;
+ char *dollar_underscore, *temp;
dollar_underscore = get_string_value ("_");
-
if (dollar_underscore)
dollar_underscore = savestring (dollar_underscore);
- mailpaths = get_mailpaths ();
- while ((current_mail_file = extract_colon_unit (mailpaths, &file_index)))
+ for (i = 0; i < mailfiles_count; i++)
{
- char *t;
- int use_user_notification;
+ current_mail_file = mailfiles[i]->name;
- if (!*current_mail_file)
- {
- free (current_mail_file);
- continue;
- }
+ if (*current_mail_file == '\0')
+ continue;
- t = full_pathname (current_mail_file);
- free (current_mail_file);
- current_mail_file = t;
+ if (file_mod_date_changed (i))
+ {
+ int file_is_bigger;
- use_user_notification = 0;
- you_have_mail_message = "You have mail in $_";
+ use_user_notification = mailfiles[i]->msg != (char *)NULL;
+ message = mailfiles[i]->msg ? mailfiles[i]->msg : _("You have mail in $_");
- mp = parse_mailpath_spec (current_mail_file);
- if (mp && *mp)
- {
- *mp = '\0';
- you_have_mail_message = ++mp;
- use_user_notification++;
- }
+ bind_variable ("_", current_mail_file, 0);
- if (file_mod_date_changed (current_mail_file))
- {
- WORD_LIST *tlist;
- int i, file_is_bigger;
- bind_variable ("_", current_mail_file);
#define atime mailfiles[i]->access_time
#define mtime mailfiles[i]->mod_time
- /* Have to compute this before the call to add_mail_file, which
+ /* Have to compute this before the call to update_mail_file, which
resets all the information. */
- file_is_bigger = file_has_grown (current_mail_file);
-
- i = add_mail_file (current_mail_file);
+ file_is_bigger = file_has_grown (i);
- if (i == -1)
- continue; /* if this returns -1 , it is a bug */
+ update_mail_file (i);
/* If the user has just run a program which manipulates the
mail file, then don't bother explaining that the mail
the mail in the file is manipulated, check the size also. If
the file has not grown, continue. */
if ((atime >= mtime) && !file_is_bigger)
- {
- free (current_mail_file);
- continue;
- }
+ continue;
/* If the mod time is later than the access time and the file
has grown, note the fact that this is *new* mail. */
- if (!use_user_notification && (atime < mtime) && file_is_bigger)
- you_have_mail_message = "You have new mail in $_";
+ if (use_user_notification == 0 && (atime < mtime) && file_is_bigger)
+ message = _("You have new mail in $_");
#undef atime
#undef mtime
- if ((tlist = expand_string (you_have_mail_message, 1)))
+ if (temp = expand_string_to_string (message, Q_DOUBLE_QUOTES))
{
- char *tem = string_list (tlist);
- printf ("%s\n", tem);
- free (tem);
- dispose_words (tlist);
+ puts (temp);
+ free (temp);
}
else
- printf ("\n");
+ putchar ('\n');
}
- if (find_variable ("MAIL_WARNING") &&
- file_access_date_changed (current_mail_file))
+ if (mail_warning && file_access_date_changed (i))
{
- add_mail_file (current_mail_file);
- printf ("The mail in %s has been read!\n", current_mail_file);
+ update_mail_file (i);
+ printf (_("The mail in %s has been read\n"), current_mail_file);
}
-
- free (current_mail_file);
}
- free (mailpaths);
if (dollar_underscore)
{
- bind_variable ("_", dollar_underscore);
+ bind_variable ("_", dollar_underscore, 0);
free (dollar_underscore);
}
else
projects / platform / upstream / bash.git / blobdiff