diff options
Diffstat (limited to 'src/dvault.c')
| -rw-r--r-- | src/dvault.c | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/src/dvault.c b/src/dvault.c index 57f15da..81bd7a7 100644 --- a/src/dvault.c +++ b/src/dvault.c @@ -5,7 +5,6 @@ #include <stdint.h> #include <stdbool.h> #include <stdlib.h> -#include <stdio.h> #include <string.h> @@ -106,7 +105,7 @@ void prne_free_dvault_mask_result (prne_dvault_mask_result_t *r) { prne_dvault_mask_result_t prne_dvault_mask (const prne_data_type_t type, const uint8_t salt, const size_t data_size, const uint8_t *data) { size_t i; prne_dvault_mask_result_t ret; - int f_ret; + char *p; prne_init_dvault_mask_result(&ret); @@ -127,16 +126,21 @@ prne_dvault_mask_result_t prne_dvault_mask (const prne_data_type_t type, const u return ret; } - f_ret = sprintf(ret.str, "\\x%02X\\x%02X\\x%02X\\x%02X", - type, - salt, - (int)((0xFF00 & (uint_fast16_t)data_size) >> 8), - (int)((0x00FF & (uint_fast16_t)data_size) >> 0)); - assert(f_ret > 0); + p = ret.str; + p[0] = p[4] = p[8] = p[12] = '\\'; + p[1] = p[5] = p[9] = p[13] = 'x'; + prne_hex_tochar((uint_fast8_t)type, p + 2, true); + prne_hex_tochar((uint_fast8_t)salt, p + 6, true); + prne_hex_tochar((uint_fast8_t)((0xFF00 & (uint_fast16_t)data_size) >> 8), p + 10, true); + prne_hex_tochar((uint_fast8_t)((0x00FF & (uint_fast16_t)data_size) >> 0), p + 14, true); + p += 16; for (i = 0; i < data_size; i += 1) { - f_ret = sprintf(ret.str + 4 * 4 + 4 * i, "\\x%02X", data[i] ^ PRNE_DVAULT_MASK[(i + (size_t)salt) % 256]); - assert(f_ret > 0); + p[0] = '\\'; + p[1] = 'x'; + prne_hex_tochar(data[i] ^ PRNE_DVAULT_MASK[(i + (size_t)salt) % 256], p + 2, true); + p += 4; } + *p = 0; return ret; } |