From e5d30b78b7720ba3e511819b7fc51c11d642153b Mon Sep 17 00:00:00 2001 From: Stefan Reinauer Date: Thu, 25 Mar 2010 22:15:19 +0000 Subject: libpayload update * rework Config.in * add string_to_args function to actually make getopt usable. * add strchr * add strlcat * some malloc fixes (exposed by the USB stack) * add malloc debugging (thanks to Matthias Krause from Secunet!) * make LAR support optional, it's not really used anymore * (define htoX macros for ppc) Signed-off-by: Stefan Reinauer Acked-by: Joseph Smith git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5298 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1 --- payloads/libpayload/libc/args.c | 88 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 88 insertions(+) create mode 100644 payloads/libpayload/libc/args.c (limited to 'payloads/libpayload/libc/args.c') diff --git a/payloads/libpayload/libc/args.c b/payloads/libpayload/libc/args.c new file mode 100644 index 0000000000..8242d60bba --- /dev/null +++ b/payloads/libpayload/libc/args.c @@ -0,0 +1,88 @@ +/* + * This file is part of the libpayload project. + * + * Copyright (C) 2008 coresystems GmbH + * + * 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. + * 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. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. + */ + +/** + * @file libc/readline.c + * Simple readline implementation + */ + +#include +#include + +/* We don't want to waste malloc on this, so we live with a small + * fixed size array + */ +char *string_argv[MAX_ARGS]; +int string_argc; + +/** + * Take a string and make char *argv[] and int argc from it. + * + * This function allows the user to use getopt on an arbitrary string. + * + * global variables valid after a successful run of string_to_args(): + * string_argc pointer to number of arguments + * string_argv pointer to argument list. + * + * @param caller to be used as argv[0] (may be NULL to ignore) + * @param string to process + * @return 0 if no error occured. + */ +int string_to_args(char *caller, char *string) +{ + int i = 0; + + if (caller) + string_argv[i++] = caller; + + if (*string) + string_argv[i++] = string; + + /* Terminate if the string ends */ + while (string && *string) { + /* whitespace occured? */ + if ((*string == ' ') || (*string == '\t')) { + /* skip all whitespace (and null it) */ + while (*string == ' ' || *string == '\t') + *string++ = 0; + /* if our ugly static array is big enough, store + * argument to string_argv[] + */ + if (i < MAX_ARGS) + string_argv[i++] = string; + } + string++; + } + + /* prevent array from overflowing */ + string_argc = (i <= MAX_ARGS) ? i : MAX_ARGS; + + /* and return whether there was an overflow */ + return (i <= MAX_ARGS) ? 0 : 1; +} -- cgit v1.2.3