0,0 → 1,154 |
/* Copyright (c) 2008, Tim Post <tinkertim@gmail.com> |
* Copyright (C) 1998 by Wes Peters <wes@softweyr.com> |
* Copyright (c) 1988, 1993 The Regents of the University of California. |
* All rights reserved by all copyright holders. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions are met: |
* |
* Redistributions of source code must retain the above copyright notice, this |
* list of conditions and the following disclaimer. |
* |
* 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. |
* |
* Neither the name of the original program's authors nor the names of its |
* contributors may be used to endorse or promote products derived from this |
* software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT OWNER OR CONTRIBUTORS 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, 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. |
*/ |
|
/* NOTES: |
* 1 - Various functions were adapted from FreeBSD (copyright holders noted above) |
* these functions are identified with comments. |
* |
* 2 - Some of these have since appeared in libc. They remain here for various |
* reasons, such as the eventual integration of garbage collection for things |
* that allocate memory and don't automatically free it. |
* |
* 3 - Things that expect a pointer to an allocated string do _no_ sanity checking |
* if developing on a simulator with no debugger, take care :) |
*/ |
|
#include <stdio.h> |
#include <string.h> |
#include <stdarg.h> |
#include <stdlib.h> |
|
#include "config.h" |
#include "errors.h" |
#include "util.h" |
|
/* Functions that just have no other home */ |
|
/* Tests if string is an --option/-option */ |
unsigned int is_option(char *string) |
{ |
size_t i; |
|
/* We have rubbish */ |
if (NULL == string) |
return 0; |
|
/* - or -- means an option (or end of options) */ |
for (i=0; i < strlen(string); i++) { |
if (string[i] == '-' && i <= 1) |
return 1; |
} |
|
return 0; |
} |
|
/* Returns the option count in an array of arguments */ |
unsigned int count_options(char *argv[]) |
{ |
unsigned int i; |
unsigned int n = 0; |
|
for (i=0; argv[i] != NULL; i++) { |
if (is_option((char *)argv[i])) |
n++; |
} |
|
return n; |
} |
|
/* some platforms do not have strdup, implement it here */ |
char * cli_strdup(const char *s1) |
{ |
size_t len = strlen(s1) + 1; |
void *ret = malloc(len); |
|
if (ret == NULL) |
return (char *) NULL; |
|
return (char *) memcpy(ret, s1, len); |
} |
|
/* Ported from FBSD strtok.c 8.1 (Berkeley) 6/4/93 */ |
char * cli_strtok_r(char *s, const char *delim, char **last) |
{ |
char *spanp, *tok; |
int c, sc; |
|
if (s == NULL && (s = *last) == NULL) |
return (NULL); |
|
cont: |
c = *s++; |
for (spanp = (char *)delim; (sc = *spanp++) != 0;) { |
if (c == sc) |
goto cont; |
} |
|
if (c == 0) { /* no non-delimiter characters */ |
*last = NULL; |
return (NULL); |
} |
tok = s - 1; |
|
for (;;) { |
c = *s++; |
spanp = (char *)delim; |
do { |
if ((sc = *spanp++) == c) { |
if (c == 0) |
s = NULL; |
else |
s[-1] = '\0'; |
*last = s; |
return (tok); |
} |
} while (sc != 0); |
} |
} |
|
/* Ported from FBSD strtok.c 8.1 (Berkeley) 6/4/93 */ |
char * cli_strtok(char *s, const char *delim) |
{ |
static char *last; |
|
return (cli_strtok_r(s, delim, &last)); |
} |
|
/* for debugging, not really used */ |
void cli_free(void **pointer) |
{ |
if (*pointer != NULL) { |
free(*pointer); |
*pointer = NULL; |
} |
} |
|