mbox_separator.c
2.64 KB
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/* GNU mailutils - a suite of utilities for electronic mail
Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Library Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program 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 Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdlib.h>
#include <string.h>
#include <mailutils/error.h>
#include <mailutils/sys/mbox.h>
/* Each message starts with a line that contaings three of four fieds:
"From" SP evelope-sender SP date [SP moreinfo]
*/
int
mbox_get_separator (mbox_t mbox, unsigned int msgno, char **psep)
{
mbox_debug_print (mbox, "get_separator(%u)", msgno);
if (mbox == NULL || msgno == 0 || psep == NULL)
return MU_ERROR_INVALID_PARAMETER;
if (msgno > mbox->messages_count)
return MU_ERROR_INVALID_PARAMETER;
msgno--;
if (mbox->umessages[msgno]->separator)
{
*psep = strdup (mbox->umessages[msgno]->separator);
}
else
{
char *p = NULL;
int len = 0 ;
size_t n = 0;
off_t offset = mbox->umessages[msgno]->from_;
len = 2;
p = malloc (len);
if (p == NULL)
return MU_ERROR_NO_MEMORY;
*p = '\0';
do
{
char *s;
len += 128;
s = realloc (p, len);
if (s == NULL)
{
free (p);
return MU_ERROR_NO_MEMORY;
}
p = s ;
stream_readline (mbox->carrier, p + strlen (p), len, offset, &n);
offset += n;
n = strlen (p);
} while (n && p[n - 1] != '\n');
if (n && p[n - 1] == '\n')
p[n - 1] = '\0';
*psep = strdup (p);
mbox->umessages[msgno]->separator = strdup (p);
free (p);
}
return 0;
}
int
mbox_set_separator (mbox_t mbox, unsigned int msgno, const char *sep)
{
if (mbox == NULL || msgno == 0)
return MU_ERROR_INVALID_PARAMETER;
if (msgno > mbox->umessages_count)
return MU_ERROR_INVALID_PARAMETER;
msgno--;
if (mbox->umessages[msgno]->separator)
free (mbox->umessages[msgno]->separator);
mbox->umessages[msgno]->separator = (sep) ? strdup (sep) : NULL;
mbox->umessages[msgno]->attr_flags |= MU_ATTRIBUTE_MODIFIED;
return 0;
}