cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

parse-sublevel-options.c (1070B)

      1#include <stdlib.h>
      2#include <stdint.h>
      3#include <string.h>
      4#include <stdio.h>
      5
      6#include "util/debug.h"
      7#include "util/parse-sublevel-options.h"
      8
      9static int parse_one_sublevel_option(const char *str,
     10				     struct sublevel_option *opts)
     11{
     12	struct sublevel_option *opt = opts;
     13	char *vstr, *s = strdup(str);
     14	int v = 1;
     15
     16	if (!s) {
     17		pr_err("no memory\n");
     18		return -1;
     19	}
     20
     21	vstr = strchr(s, '=');
     22	if (vstr)
     23		*vstr++ = 0;
     24
     25	while (opt->name) {
     26		if (!strcmp(s, opt->name))
     27			break;
     28		opt++;
     29	}
     30
     31	if (!opt->name) {
     32		pr_err("Unknown option name '%s'\n", s);
     33		free(s);
     34		return -1;
     35	}
     36
     37	if (vstr)
     38		v = atoi(vstr);
     39
     40	*opt->value_ptr = v;
     41	free(s);
     42	return 0;
     43}
     44
     45/* parse options like --foo a=<n>,b,c... */
     46int perf_parse_sublevel_options(const char *str, struct sublevel_option *opts)
     47{
     48	char *s = strdup(str);
     49	char *p = NULL;
     50	int ret;
     51
     52	if (!s) {
     53		pr_err("no memory\n");
     54		return -1;
     55	}
     56
     57	p = strtok(s, ",");
     58	while (p) {
     59		ret = parse_one_sublevel_option(p, opts);
     60		if (ret) {
     61			free(s);
     62			return ret;
     63		}
     64
     65		p = strtok(NULL, ",");
     66	}
     67
     68	free(s);
     69	return 0;
     70}