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/* Copyright (C) 1988, 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
This file is part of GNU Make.
GNU Make 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 Make 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 Make; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "make.h"
#include "file.h"
#ifndef NO_ARCHIVES
/* Defined in arscan.c. */
extern long int ar_scan ();
extern int ar_member_touch ();
extern int ar_name_equal ();
/* Return nonzero if NAME is an archive-member reference, zero if not.
An archive-member reference is a name like `lib(member)'.
If a name like `lib((entry))' is used, a fatal error is signaled at
the attempt to use this unsupported feature. */
int
ar_name (name)
char *name;
{
char *p = index (name, '('), *end = name + strlen (name) - 1;
if (p == 0 || p == name || *end != ')')
return 0;
if (p[1] == '(' && end[-1] == ')')
fatal ("attempt to use unsupported feature: `%s'", name);
return 1;
}
/* Parse the archive-member reference NAME into the archive and member names.
Put the malloc'd archive name in *ARNAME_P if ARNAME_P is non-nil;
put the malloc'd member name in *MEMNAME_P if MEMNAME_P is non-nil. */
void
ar_parse_name (name, arname_p, memname_p)
char *name, **arname_p, **memname_p;
{
char *p = index (name, '('), *end = name + strlen (name) - 1;
if (arname_p != 0)
*arname_p = savestring (name, p - name);
if (memname_p != 0)
*memname_p = savestring (p + 1, end - (p + 1));
}
static long int ar_member_date_1 ();
/* Return the modtime of NAME. */
time_t
ar_member_date (name)
char *name;
{
char *arname;
int arname_used = 0;
char *memname;
long int val;
ar_parse_name (name, &arname, &memname);
/* Make sure we know the modtime of the archive itself because
we are likely to be called just before commands to remake a
member are run, and they will change the archive itself. */
{
struct file *arfile;
arfile = lookup_file (arname);
if (arfile == 0)
{
arfile = enter_file (arname);
arname_used = 1;
}
(void) f_mtime (arfile, 0);
}
val = ar_scan (arname, ar_member_date_1, (long int) memname);
if (!arname_used)
free (arname);
free (memname);
return (val <= 0 ? (time_t) -1 : (time_t) val);
}
/* This function is called by `ar_scan' to find which member to look at. */
/* ARGSUSED */
static long int
ar_member_date_1 (desc, mem, hdrpos, datapos, size, date, uid, gid, mode, name)
int desc;
char *mem;
long int hdrpos, datapos, size, date;
int uid, gid, mode;
char *name;
{
return ar_name_equal (name, mem) ? date : 0;
}
/* Set the archive-member NAME's modtime to now. */
int
ar_touch (name)
char *name;
{
char *arname, *memname;
int arname_used = 0;
register int val;
ar_parse_name (name, &arname, &memname);
/* Make sure we know the modtime of the archive itself before we
touch the member, since this will change the archive itself. */
{
struct file *arfile;
arfile = lookup_file (arname);
if (arfile == 0)
{
arfile = enter_file (arname);
arname_used = 1;
}
(void) f_mtime (arfile, 0);
}
val = 1;
switch (ar_member_touch (arname, memname))
{
case -1:
error ("touch: Archive `%s' does not exist", arname);
break;
case -2:
error ("touch: `%s' is not a valid archive", arname);
break;
case -3:
perror_with_name ("touch: ", arname);
break;
case 1:
error ("touch: Member `%s' does not exist in `%s'", memname, arname);
break;
case 0:
val = 0;
break;
default:
error ("touch: Bad return code from ar_member_touch on `%s'", name);
}
if (!arname_used)
free (arname);
free (memname);
return val;
}
#endif
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