diff options
Diffstat (limited to 'drivers/net/wireless/bcm4329/miniopt.c')
| -rw-r--r-- | drivers/net/wireless/bcm4329/miniopt.c | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/drivers/net/wireless/bcm4329/miniopt.c b/drivers/net/wireless/bcm4329/miniopt.c new file mode 100644 index 000000000000..6a184a75f06b --- /dev/null +++ b/drivers/net/wireless/bcm4329/miniopt.c @@ -0,0 +1,163 @@ +/* + * Description. + * + * Copyright (C) 1999-2010, Broadcom Corporation + * + * Unless you and Broadcom execute a separate written software license + * agreement governing use of this software, this software is licensed to you + * under the terms of the GNU General Public License version 2 (the "GPL"), + * available at http://www.broadcom.com/licenses/GPLv2.php, with the + * following added to such license: + * + * As a special exception, the copyright holders of this software give you + * permission to link this software with independent modules, and to copy and + * distribute the resulting executable under terms of your choice, provided that + * you also meet, for each linked independent module, the terms and conditions of + * the license of that module. An independent module is a module which is not + * derived from this software. The special exception does not apply to any + * modifications of the software. + * + * Notwithstanding the above, under no circumstances may you combine this + * software in any way with any other Broadcom software provided under a license + * other than the GPL, without Broadcom's express prior written consent. + * $Id: miniopt.c,v 1.1.6.4 2009/09/25 00:32:01 Exp $ + */ + +/* ---- Include Files ---------------------------------------------------- */ + +#include <typedefs.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include "miniopt.h" + + +/* ---- Public Variables ------------------------------------------------- */ +/* ---- Private Constants and Types -------------------------------------- */ + + + +/* ---- Private Variables ------------------------------------------------ */ +/* ---- Private Function Prototypes -------------------------------------- */ +/* ---- Functions -------------------------------------------------------- */ + +/* ----------------------------------------------------------------------- */ +void +miniopt_init(miniopt_t *t, const char* name, const char* flags, bool longflags) +{ + static const char *null_flags = ""; + + memset(t, 0, sizeof(miniopt_t)); + t->name = name; + if (flags == NULL) + t->flags = null_flags; + else + t->flags = flags; + t->longflags = longflags; +} + + +/* ----------------------------------------------------------------------- */ +int +miniopt(miniopt_t *t, char **argv) +{ + int keylen; + char *p, *eq, *valstr, *endptr = NULL; + int err = 0; + + t->consumed = 0; + t->positional = FALSE; + memset(t->key, 0, MINIOPT_MAXKEY); + t->opt = '\0'; + t->valstr = NULL; + t->good_int = FALSE; + valstr = NULL; + + if (*argv == NULL) { + err = -1; + goto exit; + } + + p = *argv++; + t->consumed++; + + if (!t->opt_end && !strcmp(p, "--")) { + t->opt_end = TRUE; + if (*argv == NULL) { + err = -1; + goto exit; + } + p = *argv++; + t->consumed++; + } + + if (t->opt_end) { + t->positional = TRUE; + valstr = p; + } + else if (!strncmp(p, "--", 2)) { + eq = strchr(p, '='); + if (eq == NULL && !t->longflags) { + fprintf(stderr, + "%s: missing \" = \" in long param \"%s\"\n", t->name, p); + err = 1; + goto exit; + } + keylen = eq ? (eq - (p + 2)) : (int)strlen(p) - 2; + if (keylen > 63) keylen = 63; + memcpy(t->key, p + 2, keylen); + + if (eq) { + valstr = eq + 1; + if (*valstr == '\0') { + fprintf(stderr, + "%s: missing value after \" = \" in long param \"%s\"\n", + t->name, p); + err = 1; + goto exit; + } + } + } + else if (!strncmp(p, "-", 1)) { + t->opt = p[1]; + if (strlen(p) > 2) { + fprintf(stderr, + "%s: only single char options, error on param \"%s\"\n", + t->name, p); + err = 1; + goto exit; + } + if (strchr(t->flags, t->opt)) { + /* this is a flag option, no value expected */ + valstr = NULL; + } else { + if (*argv == NULL) { + fprintf(stderr, + "%s: missing value parameter after \"%s\"\n", t->name, p); + err = 1; + goto exit; + } + valstr = *argv; + argv++; + t->consumed++; + } + } else { + t->positional = TRUE; + valstr = p; + } + + /* parse valstr as int just in case */ + if (valstr) { + t->uval = (uint)strtoul(valstr, &endptr, 0); + t->val = (int)t->uval; + t->good_int = (*endptr == '\0'); + } + + t->valstr = valstr; + +exit: + if (err == 1) + t->opt = '?'; + + return err; +} |