cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
Log | Files | Refs | Submodules | LICENSE | sfeed.txt

util.c (1926B)

      1/*
      2 * QEMU System Emulator
      3 *
      4 * Copyright (c) 2003-2008 Fabrice Bellard
      5 *
      6 * Permission is hereby granted, free of charge, to any person obtaining a copy
      7 * of this software and associated documentation files (the "Software"), to deal
      8 * in the Software without restriction, including without limitation the rights
      9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     10 * copies of the Software, and to permit persons to whom the Software is
     11 * furnished to do so, subject to the following conditions:
     12 *
     13 * The above copyright notice and this permission notice shall be included in
     14 * all copies or substantial portions of the Software.
     15 *
     16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
     19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
     21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
     22 * THE SOFTWARE.
     23 */
     24
     25#include "qemu/osdep.h"
     26#include "util.h"
     27
     28int net_parse_macaddr(uint8_t *macaddr, const char *p)
     29{
     30    int i;
     31    char *last_char;
     32    long int offset;
     33
     34    errno = 0;
     35    offset = strtol(p, &last_char, 0);
     36    if (errno == 0 && *last_char == '\0' &&
     37        offset >= 0 && offset <= 0xFFFFFF) {
     38        macaddr[3] = (offset & 0xFF0000) >> 16;
     39        macaddr[4] = (offset & 0xFF00) >> 8;
     40        macaddr[5] = offset & 0xFF;
     41        return 0;
     42    }
     43
     44    for (i = 0; i < 6; i++) {
     45        macaddr[i] = strtol(p, (char **)&p, 16);
     46        if (i == 5) {
     47            if (*p != '\0') {
     48                return -1;
     49            }
     50        } else {
     51            if (*p != ':' && *p != '-') {
     52                return -1;
     53            }
     54            p++;
     55        }
     56    }
     57
     58    return 0;
     59}