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/*
* Miscellaneous support routines..
*
* $Id$
*
* Copyright (c) 1995
* Jordan Hubbard. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer,
* verbatim and that no modifications are made prior to this
* point in the file.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Jordan Hubbard
* for the FreeBSD Project.
* 4. The name of Jordan Hubbard or the FreeBSD project may not be used to
* endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY JORDAN HUBBARD ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL JORDAN HUBBARD OR HIS PETS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, LIFE OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#include "sysinstall.h"
#include <ctype.h>
/* Quick check to see if a file is readable */
Boolean
file_readable(char *fname)
{
if (!access(fname, F_OK))
return TRUE;
return FALSE;
}
/* Quick check to see if a file is executable */
Boolean
file_executable(char *fname)
{
if (!access(fname, X_OK))
return TRUE;
return FALSE;
}
/* Concatenate two strings into static storage */
char *
string_concat(char *one, char *two)
{
static char tmp[FILENAME_MAX];
strcpy(tmp, one);
strcat(tmp, two);
return tmp;
}
/* Clip the whitespace off the end of a string */
char *
string_prune(char *str)
{
int len = str ? strlen(str) : 0;
while (len && isspace(str[len - 1]))
str[--len] = '\0';
return str;
}
/* run the whitespace off the front of a string */
char *
string_skipwhite(char *str)
{
while (*str && isspace(*str))
++str;
return str;
}
/* A free guaranteed to take NULL ptrs */
void
safe_free(void *ptr)
{
if (ptr)
free(ptr);
}
/*
* These next two are kind of specialized just for building string lists
* for dialog_menu().
*/
/* Add a string to an item list */
char **
item_add(char **list, char *item, int *curr, int *max)
{
if (*curr == *max) {
*max += 20;
list = (char **)realloc(list, sizeof(char *) * *max);
}
list[(*curr)++] = item;
return list;
}
/* Toss the items out */
void
items_free(char **list, int *curr, int *max)
{
safe_free(list);
*curr = *max = 0;
}
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