411bac67a7
nor is it in sync with my working sources, but it leaves me less CVS hassles to bring in the new files at this time. Still no documentation to translate quite yet, but soon. This stuff is actually very close now.
148 lines
3.7 KiB
C
148 lines
3.7 KiB
C
/*
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* Miscellaneous support routines..
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*
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* $Id: misc.c,v 1.2 1995/04/29 19:33:04 jkh Exp $
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*
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* Copyright (c) 1995
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* Jordan Hubbard. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
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* verbatim and that no modifications are made prior to this
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* point in the file.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Jordan Hubbard
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* for the FreeBSD Project.
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* 4. The name of Jordan Hubbard or the FreeBSD project may not be used to
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* endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY JORDAN HUBBARD ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL JORDAN HUBBARD OR HIS PETS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, LIFE OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include "sysinstall.h"
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#include <ctype.h>
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/* Quick check to see if a file is readable */
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Boolean
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file_readable(char *fname)
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{
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if (!access(fname, F_OK))
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return TRUE;
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return FALSE;
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}
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/* Quick check to see if a file is executable */
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Boolean
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file_executable(char *fname)
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{
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if (!access(fname, X_OK))
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return TRUE;
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return FALSE;
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}
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/* Concatenate two strings into static storage */
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char *
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string_concat(char *one, char *two)
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{
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static char tmp[FILENAME_MAX];
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strcpy(tmp, one);
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strcat(tmp, two);
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return tmp;
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}
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/* Clip the whitespace off the end of a string */
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char *
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string_prune(char *str)
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{
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int len = str ? strlen(str) : 0;
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while (len && isspace(str[len - 1]))
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str[--len] = '\0';
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return str;
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}
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/* run the whitespace off the front of a string */
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char *
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string_skipwhite(char *str)
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{
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while (*str && isspace(*str))
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++str;
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return str;
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}
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/* A free guaranteed to take NULL ptrs */
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void
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safe_free(void *ptr)
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{
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if (ptr)
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free(ptr);
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}
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/* A malloc that checks errors */
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void *
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safe_malloc(size_t size)
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{
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void *ptr;
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ptr = malloc(size);
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if (!ptr)
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msgFatal("Out of memory!");
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return ptr;
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}
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/*
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* These next routines are kind of specialized just for building string lists
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* for dialog_menu().
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*/
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/* Add a string to an item list */
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char **
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item_add(char **list, char *item, int *curr, int *max)
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{
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if (*curr == *max) {
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*max += 20;
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list = (char **)realloc(list, sizeof(char *) * *max);
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}
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list[(*curr)++] = item;
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return list;
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}
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/* Add a pair of items to an item list (more the usual case) */
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char **
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item_add_pair(char **list, char *item1, char *item2, int *curr, int *max)
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{
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list = item_add(list, item1, curr, max);
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list = item_add(list, item2, curr, max);
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return list;
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}
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/* Toss the items out */
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void
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items_free(char **list, int *curr, int *max)
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{
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safe_free(list);
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*curr = *max = 0;
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}
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