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/*
* This program 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 of the License, 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 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/*
* This file contains definitions that might be included in one system, but
* omited in another.
*
* Created by Serge van den Boom
*/
#include "port.h"
#include <ctype.h>
#include <errno.h>
#ifdef _MSC_VER
# include <stdarg.h>
# include <stdio.h>
#endif /* _MSC_VER */
#include <stdlib.h>
#include <string.h>
#if !defined (_MSC_VER) && !defined (HAVE_READDIR_R)
# include <dirent.h>
#endif
#ifndef HAVE_STRUPR
char *
strupr (char *str)
{
char *ptr;
ptr = str;
while (*ptr)
{
*ptr = (char) toupper (*ptr);
ptr++;
}
return str;
}
#endif
#ifndef HAVE_SETENV
int
setenv (const char *name, const char *value, int overwrite)
{
char *string, *ptr;
size_t nameLen, valueLen;
if (!overwrite)
{
char *old;
old = getenv (name);
if (old != NULL)
return 0;
}
nameLen = strlen (name);
valueLen = strlen (value);
string = malloc (nameLen + valueLen + 2);
// "NAME=VALUE\0"
// putenv() does NOT make a copy, but uses the string passed.
ptr = string;
strcpy (string, name);
ptr += nameLen;
*ptr = '=';
ptr++;
strcpy (ptr, value);
return putenv (string);
}
#endif
#if !defined (_MSC_VER) && !defined (HAVE_READDIR_R)
// NB. This function calls readdir() directly, and as such has the same
// reentrance issues as that function. For the purposes of UQM it will
// do though.
// Note the POSIX requires that "The pointer returned by readdir()
// points to data which may be overwritten by another call to
// readdir( ) on the same directory stream. This data is not
// overwritten by another call to readdir() on a different directory
// stream."
// NB. This function makes an extra copy of the dirent and will hence be
// slower than a direct call to readdir() or readdir_r().
int
readdir_r(DIR *dirp, struct dirent *entry, struct dirent **result) {
struct dirent *readdir_entry;
readdir_entry = readdir(dirp);
if (readdir_entry == NULL) {
*result = NULL;
return errno;
}
*entry = *readdir_entry;
*result = entry;
return 0;
}
#endif
#ifdef _MSC_VER
// MSVC does not have snprintf() and vsnprintf(). It does have a _snprintf()
// and _vsnprintf(), but these do not terminate a truncated string as
// the C standard prescribes.
int
snprintf(char *str, size_t size, const char *format, ...)
{
int result;
va_list args;
va_start (args, format);
result = _vsnprintf (str, size, format, args);
if (str != NULL && size != 0)
str[size - 1] = '\0';
va_end (args);
return result;
}
int
vsnprintf(char *str, size_t size, const char *format, va_list args)
{
int result = _vsnprintf (str, size, format, args);
if (str != NULL && size != 0)
str[size - 1] = '\0';
return result;
}
#endif /* _MSC_VER */
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