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151 lines
3.4 KiB
C
151 lines
3.4 KiB
C
/* Copyright (C) 1985, 1994 Free Software Foundation
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This file is part of GNU Emacs.
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GNU Emacs is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Emacs is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Emacs; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* cvtmail:
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* Program to convert oldstyle goslings emacs mail directories into
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* gnu-rmail format. Program expects a directory called Messages to
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* exist in your home directory, containing individual mail messages in
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* separate files in the standard gosling emacs mail reader format.
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*
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* Program takes one argument: an output file. THis file will contain
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* all the messages in Messages directory, in berkeley mail format.
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* If no output file is mentioned, messages are put in ~/OMAIL.
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*
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* In order to get rmail to read the messages, the resulting file must
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* be mv'ed to ~/mbox, and then have rmail invoked on them.
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*
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* Author: Larry Kolodney, 1985
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*/
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#include <stdio.h>
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char *malloc ();
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char *realloc ();
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char *xmalloc ();
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char *xrealloc ();
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char *getenv ();
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main (argc, argv)
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int argc;
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char *argv[];
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{
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char *hd;
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char *md;
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char *mdd;
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char *mfile;
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char *cf;
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int cflen;
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FILE *mddf;
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FILE *mfilef;
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FILE *cff;
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char pre[10], post[100];
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char name[14];
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int c;
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hd = (char *) getenv ("HOME");
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md = (char *) xmalloc (strlen (hd) + 10);
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strcpy (md, hd);
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strcat (md, "/Messages");
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mdd = (char *) xmalloc (strlen (md) + 11);
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strcpy (mdd, md);
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strcat (mdd, "/Directory");
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cflen = 100;
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cf = (char *) xmalloc (cflen);
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mddf = fopen (mdd, "r");
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if (argc > 1)
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mfilef = fopen (argv[1], "w");
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else
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{
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mfile = (char *) xmalloc (strlen (hd) + 7);
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strcpy (mfile, hd);
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strcat (mfile, "/OMAIL");
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mfilef = fopen (mfile, "w");
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}
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skip_to_lf (mddf);
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while (fscanf (mddf, "%4c%14[0123456789]", pre, name) != EOF)
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{
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if (cflen < strlen (md) + strlen (name) + 2)
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{
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cflen = strlen (md) + strlen (name) + 2;
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cf = (char *) xrealloc (cf, cflen);
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}
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strcpy (cf, md);
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strcat (cf,"/");
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strcat (cf, name);
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cff = fopen (cf, "r");
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while ((c = getc(cff)) != EOF)
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putc (c, mfilef);
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putc ('\n', mfilef);
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skip_to_lf (mddf);
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fclose (cff);
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}
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fclose (mddf);
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fclose (mfilef);
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return 0;
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}
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skip_to_lf (stream)
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FILE *stream;
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{
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register int c;
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while ((c = getc(stream)) != '\n')
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;
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}
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char *
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xmalloc (size)
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unsigned size;
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{
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char *result = malloc (size);
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if (!result)
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fatal ("virtual memory exhausted", 0);
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return result;
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}
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char *
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xrealloc (ptr, size)
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char *ptr;
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unsigned size;
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{
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char *result = realloc (ptr, size);
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if (!result)
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fatal ("virtual memory exhausted");
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return result;
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}
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/* Print error message and exit. */
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fatal (s1, s2)
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char *s1, *s2;
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{
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error (s1, s2);
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exit (1);
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}
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error (s1, s2)
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char *s1, *s2;
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{
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fprintf (stderr, "cvtmail: ");
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fprintf (stderr, s1, s2);
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fprintf (stderr, "\n");
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}
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