/* movemail foo bar -- move file foo to file bar,
locking file foo the way /bin/mail respects.
- Copyright (C) 1986, 1992, 1993, 1994, 1996 Free Software Foundation, Inc.
+ Copyright (C) 1986, 1992, 1993, 1994, 1996, 1999, 2001, 2002, 2003, 2004,
+ 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
This file is part of GNU Emacs.
-GNU Emacs is free software; you can redistribute it and/or modify
+GNU Emacs 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 2, or (at your option)
-any later version.
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
-along with GNU Emacs; see the file COPYING. If not, write to
-the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
+
/* Important notice: defining MAIL_USE_FLOCK or MAIL_USE_LOCKF *will
cause loss of mail* if you do it on a system that does not normally
* "po:username". This will cause movemail to open a connection to
* a pop server running on $MAILHOST (environment variable). Movemail
* must be setuid to root in order to work with POP.
- *
+ *
* New module: popmail.c
* Modified routines:
* main - added code within #ifdef MAIL_USE_POP; added setuid (getuid ())
- * after POP code.
+ * after POP code.
* New routines in movemail.c:
* get_errmsg - return pointer to system error message
*
*
*/
-#define NO_SHORTNAMES /* Tell config not to load remap.h */
-#include <../src/config.h>
+#include <config.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/file.h>
#include <stdio.h>
#include <errno.h>
-#include <../src/syswait.h>
+
#include <getopt.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#ifdef HAVE_FCNTL_H
+#include <fcntl.h>
+#endif
+#include "syswait.h"
#ifdef MAIL_USE_POP
#include "pop.h"
#endif
#endif
#ifdef WINDOWSNT
+#include "ntlib.h"
#undef access
#undef unlink
#define fork() 0
-#define sys_wait(var) (*(var) = 0)
+#define wait(var) (*(var) = 0)
/* Unfortunately, Samba doesn't seem to properly lock Unix files even
though the locking call succeeds (and indeed blocks local access from
other NT programs). If you have direct file access using an NFS
client or something other than Samba, the locking call might work
- properly - make sure it does before you enable this! */
-#define DISABLE_DIRECT_ACCESS
-#endif /* WINDOWSNT */
+ properly - make sure it does before you enable this!
-/* Cancel substitutions made by config.h for Emacs. */
-#undef open
-#undef read
-#undef write
-#undef close
+ [18-Feb-97 andrewi] I now believe my comment above to be incorrect,
+ since it was based on a misunderstanding of how locking calls are
+ implemented and used on Unix. */
+//#define DISABLE_DIRECT_ACCESS
-#ifdef USG
#include <fcntl.h>
-#include <unistd.h>
+#endif /* WINDOWSNT */
+
#ifndef F_OK
#define F_OK 0
#define X_OK 1
#define W_OK 2
#define R_OK 4
#endif
-#endif /* USG */
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-
-#ifdef STDC_HEADERS
-#include <stdlib.h>
-#endif
-
-#if defined (XENIX) || defined (WINDOWSNT)
+#ifdef WINDOWSNT
#include <sys/locking.h>
#endif
#endif
#if !defined (MAIL_USE_SYSTEM_LOCK) && !defined (MAIL_USE_MMDF) && \
- defined (HAVE_LIBMAIL) && defined (HAVE_MAILLOCK_H)
+ (defined (HAVE_LIBMAIL) || defined (HAVE_LIBLOCKFILE)) && \
+ defined (HAVE_MAILLOCK_H)
#include <maillock.h>
/* We can't use maillock unless we know what directory system mail
files appear in. */
extern int errno;
#endif
char *strerror ();
-extern char *rindex ();
+#ifdef HAVE_INDEX
+extern char *index __P ((const char *, int));
+#endif
+#ifdef HAVE_RINDEX
+extern char *rindex __P((const char *, int));
+#endif
void fatal ();
void error ();
char *inname, *outname;
int indesc, outdesc;
int nread;
- WAITTYPE status;
+ int status;
int c, preserve_mail = 0;
#ifndef MAIL_USE_SYSTEM_LOCK
#endif
#ifdef MAIL_USE_POP
- int pop_flags = POP_NO_GETPASS | POP_NO_GSSAPI;
-# define ARGSTR "gkp"
+ int pop_reverse_order = 0;
+# define ARGSTR "pr"
#else /* ! MAIL_USE_POP */
# define ARGSTR "p"
#endif /* MAIL_USE_POP */
- delete_lockname = 0;
-
- /*
- 'g' enables Kerberos and disables GSS-API.
- 'k' enables GSS-API and disables Kerberos.
+#ifdef WINDOWSNT
+ /* Ensure all file i/o is in binary mode. */
+ _fmode = _O_BINARY;
+#endif
- By default, Kerberos is enabled (if it is compiled in) and
- GSS-API is disabled, i.e., "-k" is the default. However, I'm
- putting the flag in anyway, in case we decide to add new
- authentication methods or change the default later.
- */
+ delete_lockname = 0;
while ((c = getopt (argc, argv, ARGSTR)) != EOF)
{
switch (c) {
#ifdef MAIL_USE_POP
- case 'g':
- pop_flags |= POP_NO_KERBEROS;
- pop_flags &= ~POP_NO_GSSAPI;
- break;
- case 'k':
- pop_flags |= POP_NO_GSSAPI;
- pop_flags &= ~POP_NO_KERBEROS;
+ case 'r':
+ pop_reverse_order = 1;
break;
#endif
case 'p':
preserve_mail++;
break;
default:
- goto usage;
+ exit (EXIT_FAILURE);
}
}
#endif
)
{
- usage:
- fprintf (stderr, "Usage: movemail %s[-p] inbox destfile%s\n",
#ifdef MAIL_USE_POP
- "[-g|-k] ", " [POP-password]"
+ fprintf (stderr, "Usage: movemail [-p] inbox destfile%s\n",
+ " [POP-password]");
#else
- "", ""
+ fprintf (stderr, "Usage: movemail [-p] inbox destfile%s\n", "");
#endif
- );
- exit (1);
+ exit (EXIT_FAILURE);
}
inname = argv[optind];
#endif
if (*outname == 0)
- fatal ("Destination file name is empty", 0);
+ fatal ("Destination file name is empty", 0, 0);
/* Check access to output file. */
if (access (outname, F_OK) == 0 && access (outname, W_OK) != 0)
int status;
status = popmail (inname + 3, outname, preserve_mail,
- (argc - optind == 3) ? argv[optind+2] : NULL, pop_flags);
+ (argc - optind == 3) ? argv[optind+2] : NULL,
+ pop_reverse_order);
exit (status);
}
if (desc < 0)
{
char *message = (char *) xmalloc (strlen (tempname) + 50);
- sprintf (message, "%s--see source file lib-src/movemail.c",
+ sprintf (message, "creating %s, which would become the lock file",
tempname);
pfatal_with_name (message);
}
close (desc);
tem = link (tempname, lockname);
+
+#ifdef EPERM
+ if (tem < 0 && errno == EPERM)
+ fatal ("Unable to create hard link between %s and %s",
+ tempname, lockname);
+#endif
+
unlink (tempname);
if (tem >= 0)
break;
if (indesc < 0)
pfatal_with_name (inname);
-#if defined (BSD_SYSTEM) || defined (XENIX)
+#ifdef BSD_SYSTEM
/* In case movemail is setuid to root, make sure the user can
read the output file. */
/* This is desirable for all systems
but I don't want to assume all have the umask system call */
umask (umask (0) & 0333);
-#endif /* BSD_SYSTEM || XENIX */
+#endif /* BSD_SYSTEM */
outdesc = open (outname, O_WRONLY | O_CREAT | O_EXCL, 0666);
if (outdesc < 0)
pfatal_with_name (outname);
#ifdef MAIL_USE_LOCKF
status = lockf (indesc, F_LOCK, 0);
#else /* not MAIL_USE_LOCKF */
-#ifdef XENIX
- status = locking (indesc, LK_RLCK, 0L);
-#else
#ifdef WINDOWSNT
status = locking (indesc, LK_RLCK, -1L);
#else
status = flock (indesc, LOCK_EX);
#endif
-#endif
#endif /* not MAIL_USE_LOCKF */
#endif /* MAIL_USE_SYSTEM_LOCK */
}
pfatal_with_name (inname);
}
-
+
{
char buf[1024];
while (1)
{
nread = read (indesc, buf, sizeof buf);
+ if (nread < 0)
+ pfatal_with_name (inname);
if (nread != write (outdesc, buf, nread))
{
int saved_errno = errno;
#ifdef MAIL_USE_SYSTEM_LOCK
if (! preserve_mail)
{
-#if defined (STRIDE) || defined (XENIX) || defined (WINDOWSNT)
- /* Stride, xenix have file locking, but no ftruncate.
- This mess will do. */
- close (open (inname, O_CREAT | O_TRUNC | O_RDWR, 0666));
-#else
ftruncate (indesc, 0L);
-#endif /* STRIDE or XENIX */
}
#endif /* MAIL_USE_SYSTEM_LOCK */
if (spool_name)
mailunlock ();
#endif
- exit (0);
+ exit (EXIT_SUCCESS);
}
wait (&status);
if (!WIFEXITED (status))
- exit (1);
+ exit (EXIT_FAILURE);
else if (WRETCODE (status) != 0)
exit (WRETCODE (status));
#endif /* ! DISABLE_DIRECT_ACCESS */
- return 0;
+ return EXIT_SUCCESS;
}
#ifdef MAIL_USE_MAILLOCK
/* Print error message and exit. */
void
-fatal (s1, s2)
- char *s1, *s2;
+fatal (s1, s2, s3)
+ char *s1, *s2, *s3;
{
if (delete_lockname)
unlink (delete_lockname);
- error (s1, s2);
- exit (1);
+ error (s1, s2, s3);
+ exit (EXIT_FAILURE);
}
-/* Print error message. `s1' is printf control string, `s2' is arg for it. */
+/* Print error message. `s1' is printf control string, `s2' and `s3'
+ are args for it or null. */
void
error (s1, s2, s3)
char *s1, *s2, *s3;
{
fprintf (stderr, "movemail: ");
- fprintf (stderr, s1, s2, s3);
+ if (s3)
+ fprintf (stderr, s1, s2, s3);
+ else if (s2)
+ fprintf (stderr, s1, s2);
+ else
+ fprintf (stderr, s1);
fprintf (stderr, "\n");
}
pfatal_with_name (name)
char *name;
{
- char *s = concat ("", strerror (errno), " for %s");
- fatal (s, name);
+ fatal ("%s for %s", strerror (errno), name);
}
void
pfatal_and_delete (name)
char *name;
{
- char *s = concat ("", strerror (errno), " for %s");
+ char *s = strerror (errno);
unlink (name);
- fatal (s, name);
+ fatal ("%s for %s", s, name);
}
/* Return a newly-allocated string whose contents concatenate those of s1, s2, s3. */
{
long *result = (long *) malloc (size);
if (!result)
- fatal ("virtual memory exhausted", 0);
+ fatal ("virtual memory exhausted", 0, 0);
return result;
}
\f
FILE *sfo;
char ibuffer[BUFSIZ];
char obuffer[BUFSIZ];
-char Errmsg[80];
+char Errmsg[200]; /* POP errors, at least, can exceed
+ the original length of 80. */
+
+/*
+ * The full valid syntax for a POP mailbox specification for movemail
+ * is "po:username:hostname". The ":hostname" is optional; if it is
+ * omitted, the MAILHOST environment variable will be consulted. Note
+ * that by the time popmail() is called the "po:" has been stripped
+ * off of the front of the mailbox name.
+ *
+ * If the mailbox is in the form "po:username:hostname", then it is
+ * modified by this function -- the second colon is replaced by a
+ * null.
+ *
+ * Return a value suitable for passing to `exit'.
+ */
-popmail (user, outfile, preserve, password, flags)
- char *user;
+int
+popmail (mailbox, outfile, preserve, password, reverse_order)
+ char *mailbox;
char *outfile;
int preserve;
char *password;
- int flags;
+ int reverse_order;
{
int nmsgs, nbytes;
register int i;
FILE *mbf;
char *getenv ();
popserver server;
+ int start, end, increment;
+ char *user, *hostname;
+
+ user = mailbox;
+ if ((hostname = index(mailbox, ':')))
+ *hostname++ = '\0';
- server = pop_open (0, user, password, flags);
+ server = pop_open (hostname, user, password, POP_NO_GETPASS);
if (! server)
{
- error (pop_error);
- return (1);
+ error ("Error connecting to POP server: %s", pop_error, 0);
+ return EXIT_FAILURE;
}
if (pop_stat (server, &nmsgs, &nbytes))
{
- error (pop_error);
- return (1);
+ error ("Error getting message count from POP server: %s", pop_error, 0);
+ return EXIT_FAILURE;
}
if (!nmsgs)
{
pop_close (server);
- return (0);
+ return EXIT_SUCCESS;
}
mbfi = open (outfile, O_WRONLY | O_CREAT | O_EXCL, 0666);
{
pop_close (server);
error ("Error in open: %s, %s", strerror (errno), outfile);
- return (1);
+ return EXIT_FAILURE;
}
fchown (mbfi, getuid (), -1);
if ((mbf = fdopen (mbfi, "wb")) == NULL)
{
pop_close (server);
- error ("Error in fdopen: %s", strerror (errno));
+ error ("Error in fdopen: %s", strerror (errno), 0);
close (mbfi);
unlink (outfile);
- return (1);
+ return EXIT_FAILURE;
}
- for (i = 1; i <= nmsgs; i++)
+ if (reverse_order)
+ {
+ start = nmsgs;
+ end = 1;
+ increment = -1;
+ }
+ else
+ {
+ start = 1;
+ end = nmsgs;
+ increment = 1;
+ }
+
+ for (i = start; i * increment <= end * increment; i += increment)
{
mbx_delimit_begin (mbf);
if (pop_retr (server, i, mbf) != OK)
{
- error (Errmsg);
+ error ("%s", Errmsg, 0);
close (mbfi);
- return (1);
+ return EXIT_FAILURE;
}
mbx_delimit_end (mbf);
fflush (mbf);
if (ferror (mbf))
{
- error ("Error in fflush: %s", strerror (errno));
+ error ("Error in fflush: %s", strerror (errno), 0);
pop_close (server);
close (mbfi);
- return (1);
+ return EXIT_FAILURE;
}
}
#ifdef BSD_SYSTEM
if (fsync (mbfi) < 0)
{
- error ("Error in fsync: %s", strerror (errno));
- return (1);
+ error ("Error in fsync: %s", strerror (errno), 0);
+ return EXIT_FAILURE;
}
#endif
if (close (mbfi) == -1)
{
- error ("Error in close: %s", strerror (errno));
- return (1);
+ error ("Error in close: %s", strerror (errno), 0);
+ return EXIT_FAILURE;
}
if (! preserve)
{
if (pop_delete (server, i))
{
- error (pop_error);
+ error ("Error from POP server: %s", pop_error, 0);
pop_close (server);
- return (1);
+ return EXIT_FAILURE;
}
}
if (pop_quit (server))
{
- error (pop_error);
- return (1);
+ error ("Error from POP server: %s", pop_error, 0);
+ return EXIT_FAILURE;
}
-
- return (0);
+
+ return EXIT_SUCCESS;
}
int
pop_retr (server, msgno, arg)
popserver server;
+ int msgno;
FILE *arg;
{
extern char *strerror ();
if (pop_retrieve_first (server, msgno, &line))
{
- strncpy (Errmsg, pop_error, sizeof (Errmsg));
+ char *error = concat ("Error from POP server: ", pop_error, "");
+ strncpy (Errmsg, error, sizeof (Errmsg));
Errmsg[sizeof (Errmsg)-1] = '\0';
+ free(error);
return (NOTOK);
}
if (ret)
{
- strncpy (Errmsg, pop_error, sizeof (Errmsg));
+ char *error = concat ("Error from POP server: ", pop_error, "");
+ strncpy (Errmsg, error, sizeof (Errmsg));
Errmsg[sizeof (Errmsg)-1] = '\0';
+ free(error);
return (NOTOK);
}
line++;
len--;
}
- if (fwrite (line, 1, len, mbf) != len)
+ if (fwrite (line, 1, len, mbf) != len)
return (NOTOK);
if (fputc (0x0a, mbf) == EOF)
return (NOTOK);
mbx_delimit_begin (mbf)
FILE *mbf;
{
- if (fputs ("\f\n0, unseen,,\n", mbf) == EOF)
+ if (fputs ("From movemail\n", mbf) == EOF)
return (NOTOK);
return (OK);
}
+int
mbx_delimit_end (mbf)
FILE *mbf;
{
- if (putc ('\037', mbf) == EOF)
+ if (putc ('\n', mbf) == EOF)
return (NOTOK);
return (OK);
}
}
#endif /* ! HAVE_STRERROR */
+
+/* arch-tag: 1c323112-41fe-4fe5-8de9-494de631f73f
+ (do not change this comment) */
+
+/* movemail.c ends here */