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/*
* Copyright (c) 1997, 1998, 1999, 2000
* Tama Communications Corporation
*
* This file is part of GNU GLOBAL.
*
* GNU GLOBAL 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 GLOBAL 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#ifdef HAVE_STRING_H
#include <string.h>
#else
#include <strings.h>
#endif
#include "gparam.h"
#include "die.h"
#include "makepath.h"
#include "strbuf.h"
/*
* makepath: make path from directory and file.
*
* i) dir directory(optional)
* i) file file
* i) suffix suffix(optional)
* r) path
*
* It is necessary to note the usage of makepath(), because it returns
* module local area. If makepath() is called again in the function which
* is passed the return value of makepath(), then the value is overwritten.
* This may cause the bug which is not understood easily.
* You must not pass the return value except for the safe functions
* described below.
*
* Here are safe functions.
* o functions in standard C library.
* o following libutil functions:
* test(), dbop_open(), strlimcpy(), strbuf_puts(), die()
*/
char *
makepath(dir, file, suffix)
const char *dir;
const char *file;
const char *suffix;
{
STATIC_STRBUF(sb);
int length;
char sep = '/';
strbuf_clear(sb);
if (dir != NULL) {
if ((length = strlen(dir)) > MAXPATHLEN)
die("path name too long. '%s'\n", dir);
#if defined(_WIN32) || defined(__DJGPP__)
/* follows native way. */
if (dir[0] == '\\' || dir[2] == '\\')
sep = '\\';
#endif
strbuf_puts(sb, dir);
strbuf_unputc(sb, sep);
strbuf_putc(sb, sep);
}
strbuf_puts(sb, file);
if (suffix) {
if (*suffix != '.')
strbuf_putc(sb, '.');
strbuf_puts(sb, suffix);
}
if ((length = strlen(strbuf_value(sb))) > MAXPATHLEN)
die("path name too long. '%s'\n", strbuf_value(sb));
return strbuf_value(sb);
}
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