mirror of
https://github.com/termux/termux-packages.git
synced 2024-11-23 14:56:16 +00:00
90 lines
2.6 KiB
C
90 lines
2.6 KiB
C
/*
|
|
* Android c-library does not have getsubopt,
|
|
* so code lifted from uClibc
|
|
* http://git.uclibc.org/uClibc/tree/libc/unistd/getsubopt.c
|
|
*/
|
|
|
|
/* Parse comma separate list into words.
|
|
Copyright (C) 1996, 1997, 1999, 2004 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
The GNU C Library 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
|
|
Lesser General Public License for more details.
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
char *strchrnul(const char *s, int c)
|
|
{
|
|
char *result;
|
|
|
|
result = strchr( s, c );
|
|
|
|
if( !result )
|
|
{
|
|
result = (char *)s + strlen( s );
|
|
}
|
|
|
|
return( result );
|
|
}
|
|
|
|
/* Parse comma separated suboption from *OPTIONP and match against
|
|
strings in TOKENS. If found return index and set *VALUEP to
|
|
optional value introduced by an equal sign. If the suboption is
|
|
not part of TOKENS return in *VALUEP beginning of unknown
|
|
suboption. On exit *OPTIONP is set to the beginning of the next
|
|
token or at the terminating NUL character. */
|
|
int
|
|
getsubopt (char **optionp, char *const *tokens, char **valuep)
|
|
{
|
|
char *endp, *vstart;
|
|
int cnt;
|
|
|
|
if (**optionp == '\0')
|
|
return -1;
|
|
|
|
/* Find end of next token. */
|
|
endp = strchrnul (*optionp, ',');
|
|
|
|
/* Find start of value. */
|
|
vstart = memchr (*optionp, '=', endp - *optionp);
|
|
if (vstart == NULL)
|
|
vstart = endp;
|
|
|
|
/* Try to match the characters between *OPTIONP and VSTART against
|
|
one of the TOKENS. */
|
|
for (cnt = 0; tokens[cnt] != NULL; ++cnt)
|
|
if (strncmp (*optionp, tokens[cnt], vstart - *optionp) == 0
|
|
&& tokens[cnt][vstart - *optionp] == '\0')
|
|
{
|
|
/* We found the current option in TOKENS. */
|
|
*valuep = vstart != endp ? vstart + 1 : NULL;
|
|
|
|
if (*endp != '\0')
|
|
*endp++ = '\0';
|
|
*optionp = endp;
|
|
|
|
return cnt;
|
|
}
|
|
|
|
/* The current suboption does not match any option. */
|
|
*valuep = *optionp;
|
|
|
|
if (*endp != '\0')
|
|
*endp++ = '\0';
|
|
*optionp = endp;
|
|
|
|
return -1;
|
|
}
|