123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475 |
- #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
- #include <linux/kernel.h>
- #include <linux/string.h>
- #include <asm/errno.h>
- #include "getopt.h"
- int ncp_getopt(const char *caller, char **options, const struct ncp_option *opts,
- char **optopt, char **optarg, unsigned long *value)
- {
- char *token;
- char *val;
- do {
- if ((token = strsep(options, ",")) == NULL)
- return 0;
- } while (*token == '\0');
- if (optopt)
- *optopt = token;
- if ((val = strchr (token, '=')) != NULL) {
- *val++ = 0;
- }
- *optarg = val;
- for (; opts->name; opts++) {
- if (!strcmp(opts->name, token)) {
- if (!val) {
- if (opts->has_arg & OPT_NOPARAM) {
- return opts->val;
- }
- pr_info("%s: the %s option requires an argument\n",
- caller, token);
- return -EINVAL;
- }
- if (opts->has_arg & OPT_INT) {
- int rc = kstrtoul(val, 0, value);
- if (rc) {
- pr_info("%s: invalid numeric value in %s=%s\n",
- caller, token, val);
- return rc;
- }
- return opts->val;
- }
- if (opts->has_arg & OPT_STRING) {
- return opts->val;
- }
- pr_info("%s: unexpected argument %s to the %s option\n",
- caller, val, token);
- return -EINVAL;
- }
- }
- pr_info("%s: Unrecognized mount option %s\n", caller, token);
- return -EOPNOTSUPP;
- }
|