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fw: use bool as return type for memeq

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Daniel Jobson 2024-09-18 11:11:13 +02:00
parent 5da60cba1a
commit c4d738a8d6
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GPG key ID: 3707A9DBF4BB8F1A
2 changed files with 7 additions and 4 deletions
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8
hw/application_fpga/fw/tk1/lib.c
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@ -5,6 +5,8 @@
#include "lib.h" #include "lib.h"
#include "assert.h" #include "assert.h"
#include <stdbool.h>
#include <stddef.h> #include <stddef.h>
#include <stdint.h> #include <stdint.h>
@ -52,15 +54,15 @@ void wordcpy_s(void *dest, size_t destsize, const void *src, size_t n)
} }
} }
int memeq(void *dest, const void *src, size_t n) bool memeq(void *dest, const void *src, size_t n)
{ {
uint8_t *src_byte = (uint8_t *)src; uint8_t *src_byte = (uint8_t *)src;
uint8_t *dest_byte = (uint8_t *)dest; uint8_t *dest_byte = (uint8_t *)dest;
int res = -1; bool res = true;
for (size_t i = 0; i < n; i++) { for (size_t i = 0; i < n; i++) {
if (dest_byte[i] != src_byte[i]) { if (dest_byte[i] != src_byte[i]) {
res = 0; res = false;
} }
} }

3
hw/application_fpga/fw/tk1/lib.h
View file

@ -6,13 +6,14 @@
#ifndef LIB_H #ifndef LIB_H
#define LIB_H #define LIB_H
#include <stdbool.h>
#include <stddef.h> #include <stddef.h>
#include <stdint.h> #include <stdint.h>
void *memset(void *dest, int c, unsigned n); void *memset(void *dest, int c, unsigned n);
void memcpy_s(void *dest, size_t destsize, const void *src, size_t n); void memcpy_s(void *dest, size_t destsize, const void *src, size_t n);
void wordcpy_s(void *dest, size_t destsize, const void *src, size_t n); void wordcpy_s(void *dest, size_t destsize, const void *src, size_t n);
int memeq(void *dest, const void *src, size_t n); bool memeq(void *dest, const void *src, size_t n);
void secure_wipe(void *v, size_t n); void secure_wipe(void *v, size_t n);
#endif #endif