mirror of
https://github.com/RfidResearchGroup/proxmark3.git
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52ab55ab0d
ADD: added a manufacturer list in "hf 14a reader", only viable when UID is double or triple size. Thanks to Asper for the list. ADD: detect chinese magic backdoor commands in "hf 14a reader" CHG: minor code clean up.
120 lines
2.4 KiB
C
120 lines
2.4 KiB
C
//-----------------------------------------------------------------------------
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// Jonathan Westhues, Sept 2005
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//
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// This code is licensed to you under the terms of the GNU GPL, version 2 or,
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// at your option, any later version. See the LICENSE.txt file for the text of
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// the license.
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//-----------------------------------------------------------------------------
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// Common string.h functions
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//-----------------------------------------------------------------------------
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#include "string.h"
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#include <stdint.h>
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void *memcpy(void *dest, const void *src, int len)
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{
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uint8_t *d = dest;
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const uint8_t *s = src;
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while((len--) > 0) {
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*d = *s;
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d++;
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s++;
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}
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return dest;
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}
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void *memset(void *dest, int c, int len)
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{
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uint8_t *d = dest;
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while((len--) > 0) {
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*d = c;
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d++;
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}
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return dest;
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}
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int memcmp(const void *av, const void *bv, int len)
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{
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const uint8_t *a = av;
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const uint8_t *b = bv;
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while((len--) > 0) {
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if(*a != *b) {
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return *a - *b;
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}
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a++;
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b++;
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}
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return 0;
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}
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void memxor(uint8_t * dest, uint8_t * src, size_t len) {
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for( ; len > 0; len--,dest++,src++)
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*dest ^= *src;
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}
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int strlen(const char *str)
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{
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int l = 0;
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while(*str) {
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l++;
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str++;
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}
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return l;
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}
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char* strncat(char *dest, const char *src, unsigned int n)
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{
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unsigned int dest_len = strlen(dest);
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unsigned int i;
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for (i = 0 ; i < n && src[i] != '\0' ; i++)
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dest[dest_len + i] = src[i];
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dest[dest_len + i] = '\0';
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return dest;
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}
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char* strcat(char *dest, const char *src)
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{
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unsigned int dest_len = strlen(dest);
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unsigned int i;
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for (i = 0 ; src[i] != '\0' ; i++)
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dest[dest_len + i] = src[i];
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dest[dest_len + i] = '\0';
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return dest;
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}
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////////////////////////////////////////// code to do 'itoa'
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/* reverse: reverse string s in place */
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void strreverse(char s[])
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{
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int c, i, j;
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for (i = 0, j = strlen(s)-1; i<j; i++, j--) {
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c = s[i];
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s[i] = s[j];
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s[j] = c;
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}
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}
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/* itoa: convert n to characters in s */
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void itoa(int n, char s[])
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{
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int i, sign;
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if ((sign = n) < 0) /* record sign */
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n = -n; /* make n positive */
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i = 0;
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do { /* generate digits in reverse order */
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s[i++] = n % 10 + '0'; /* get next digit */
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} while ((n /= 10) > 0); /* delete it */
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if (sign < 0)
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s[i++] = '-';
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s[i] = '\0';
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strreverse(s);
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}
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//////////////////////////////////////// END 'itoa' CODE
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