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/* Copyright (C) 1985, 1994 Free Software Foundation
This file is part of GNU Emacs.
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.
GNU Emacs 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 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. */
/* cvtmail:
* Program to convert oldstyle goslings emacs mail directories into
* gnu-rmail format. Program expects a directory called Messages to
* exist in your home directory, containing individual mail messages in
* separate files in the standard gosling emacs mail reader format.
*
* Program takes one argument: an output file. This file will contain
* all the messages in Messages directory, in berkeley mail format.
* If no output file is mentioned, messages are put in ~/OMAIL.
*
* In order to get rmail to read the messages, the resulting file must
* be mv'ed to ~/mbox, and then have rmail invoked on them.
*
* Author: Larry Kolodney, 1985
*/
#include <stdio.h>
char *malloc ();
char *realloc ();
char *getenv ();
char *xmalloc ();
char *xrealloc ();
void skip_to_lf ();
void sysfail ();
int
main (argc, argv)
int argc;
char *argv[];
{
char *hd;
char *md;
char *mdd;
char *mfile;
char *cf;
int cflen;
FILE *mddf;
FILE *mfilef;
FILE *cff;
char pre[10];
char name[14];
int c;
hd = (char *) getenv ("HOME");
md = (char *) xmalloc (strlen (hd) + 10);
strcpy (md, hd);
strcat (md, "/Messages");
mdd = (char *) xmalloc (strlen (md) + 11);
strcpy (mdd, md);
strcat (mdd, "/Directory");
cflen = 100;
cf = (char *) xmalloc (cflen);
mddf = fopen (mdd, "r");
if (!mddf)
sysfail (mdd);
if (argc > 1)
mfile = argv[1];
else
{
mfile = (char *) xmalloc (strlen (hd) + 7);
strcpy (mfile, hd);
strcat (mfile, "/OMAIL");
}
mfilef = fopen (mfile, "w");
if (!mfilef)
sysfail (mfile);
skip_to_lf (mddf);
while (fscanf (mddf, "%4c%14[0123456789]", pre, name) != EOF)
{
if (cflen < strlen (md) + strlen (name) + 2)
{
cflen = strlen (md) + strlen (name) + 2;
cf = (char *) xrealloc (cf, cflen);
}
strcpy (cf, md);
strcat (cf,"/");
strcat (cf, name);
cff = fopen (cf, "r");
if (!cff)
perror (cf);
else
{
while ((c = getc(cff)) != EOF)
putc (c, mfilef);
putc ('\n', mfilef);
skip_to_lf (mddf);
fclose (cff);
}
}
fclose (mddf);
fclose (mfilef);
return 0;
}
void
skip_to_lf (stream)
FILE *stream;
{
register int c;
while ((c = getc(stream)) != EOF && c != '\n')
;
}
void
error (s1, s2)
char *s1, *s2;
{
fprintf (stderr, "cvtmail: ");
fprintf (stderr, s1, s2);
fprintf (stderr, "\n");
}
/* Print error message and exit. */
void
fatal (s1, s2)
char *s1, *s2;
{
error (s1, s2);
exit (1);
}
void
sysfail (s)
char *s;
{
fprintf (stderr, "cvtmail: ");
perror (s);
exit (1);
}
char *
xmalloc (size)
unsigned size;
{
char *result = malloc (size);
if (!result)
fatal ("virtual memory exhausted", 0);
return result;
}
char *
xrealloc (ptr, size)
char *ptr;
unsigned size;
{
char *result = realloc (ptr, size);
if (!result)
fatal ("virtual memory exhausted");
return result;
}
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