diff options
Diffstat (limited to 'usr.sbin/sade/misc.c')
-rw-r--r-- | usr.sbin/sade/misc.c | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/usr.sbin/sade/misc.c b/usr.sbin/sade/misc.c new file mode 100644 index 0000000..e9a5642 --- /dev/null +++ b/usr.sbin/sade/misc.c @@ -0,0 +1,125 @@ +/* + * 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; +} + |