111 lines
2.5 KiB
C
111 lines
2.5 KiB
C
|
/* ugtlin.c
|
|||
|
|
Read a line with backslash continuations.
|
|||
|
|
|
|||
|
|
Copyright (C) 1992 Ian Lance Taylor
|
|||
|
|
|
|||
|
|
This file is part of the Taylor UUCP uuconf library.
|
|||
|
|
|
|||
|
|
This library is free software; you can redistribute it and/or
|
|||
|
|
modify it under the terms of the GNU Library General Public License
|
|||
|
|
as published by the Free Software Foundation; either version 2 of
|
|||
|
|
the License, or (at your option) any later version.
|
|||
|
|
|
|||
|
|
This library 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 library; if not, write to the Free Software
|
|||
|
|
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|||
|
|
|
|||
|
|
The author of the program may be contacted at ian@airs.com or
|
|||
|
|
c/o Infinity Development Systems, P.O. Box 520, Waltham, MA 02254.
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
#include "uucnfi.h"
|
|||
|
|
|
|||
|
|
#if USE_RCS_ID
|
|||
|
|
const char _uuconf_ugtlin_rcsid[] = "$Id: ugtlin.c,v 1.1 1993/08/04 19:35:22 jtc Exp $";
|
|||
|
|
#endif
|
|||
|
|
|
|||
|
|
/* Read a line from a file with backslash continuations. This updates
|
|||
|
|
the qglobal->ilineno count for each additional line it reads. */
|
|||
|
|
|
|||
|
|
int
|
|||
|
|
_uuconf_getline (qglobal, pzline, pcline, e)
|
|||
|
|
struct sglobal *qglobal;
|
|||
|
|
char **pzline;
|
|||
|
|
size_t *pcline;
|
|||
|
|
FILE *e;
|
|||
|
|
{
|
|||
|
|
int ctot;
|
|||
|
|
char *zline;
|
|||
|
|
size_t cline;
|
|||
|
|
|
|||
|
|
ctot = -1;
|
|||
|
|
|
|||
|
|
zline = NULL;
|
|||
|
|
cline = 0;
|
|||
|
|
|
|||
|
|
while (TRUE)
|
|||
|
|
{
|
|||
|
|
int cchars;
|
|||
|
|
|
|||
|
|
if (ctot < 0)
|
|||
|
|
cchars = getline (pzline, pcline, e);
|
|||
|
|
else
|
|||
|
|
cchars = getline (&zline, &cline, e);
|
|||
|
|
if (cchars < 0)
|
|||
|
|
{
|
|||
|
|
if (zline != NULL)
|
|||
|
|
free ((pointer) zline);
|
|||
|
|
if (ctot >= 0)
|
|||
|
|
return ctot;
|
|||
|
|
else
|
|||
|
|
return cchars;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (ctot < 0)
|
|||
|
|
ctot = cchars;
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
if (*pcline <= ctot + cchars)
|
|||
|
|
{
|
|||
|
|
char *znew;
|
|||
|
|
|
|||
|
|
if (*pcline > 0)
|
|||
|
|
znew = (char *) realloc ((pointer) *pzline,
|
|||
|
|
(size_t) (ctot + cchars + 1));
|
|||
|
|
else
|
|||
|
|
znew = (char *) malloc ((size_t) (ctot + cchars + 1));
|
|||
|
|
if (znew == NULL)
|
|||
|
|
{
|
|||
|
|
free ((pointer) zline);
|
|||
|
|
return -1;
|
|||
|
|
}
|
|||
|
|
*pzline = znew;
|
|||
|
|
*pcline = ctot + cchars + 1;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
memcpy ((pointer) ((*pzline) + ctot), (pointer) zline,
|
|||
|
|
(size_t) (cchars + 1));
|
|||
|
|
ctot += cchars;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (ctot < 2
|
|||
|
|
|| (*pzline)[ctot - 1] != '\n'
|
|||
|
|
|| (*pzline)[ctot - 2] != '\\')
|
|||
|
|
{
|
|||
|
|
if (zline != NULL)
|
|||
|
|
free ((pointer) zline);
|
|||
|
|
return ctot;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
++qglobal->ilineno;
|
|||
|
|
|
|||
|
|
ctot -= 2;
|
|||
|
|
(*pzline)[ctot] = '\0';
|
|||
|
|
}
|
|||
|
|
}
|