src/str_util.c

   1 /*
   2  * str.c
   3  *
   4  *  Created on: Feb 14, 2011
   5  *      Author: lamikr
   6  */
   7
   8 #include <stdio.h>
   9 #include <stdlib.h>
  10 #include <string.h>
  11
  12 char *get_as_hex_str(const char *byte_arr, int byte_count) {
  13         int     ii;
  14         char    *ret_val;
  15         char    item[5];
  16
  17         ret_val = NULL;
  18         if ((byte_arr != NULL) &&
  19             (byte_count > 0)) {
  20                 ret_val = malloc(5 * byte_count);
  21                 for (ii = 0; ii < byte_count; ii++) {
  22                         if (ii == 0) {
  23                                 snprintf(ret_val, 5, "0x%02x", byte_arr[ii]);
  24                         }
  25                         else {
  26                                 snprintf(item, 5, "0x%02x", byte_arr[ii]);
  27                                 strcat(ret_val, item);
  28                         }
  29                         if (ii < (byte_count - 1)) {
  30                                 strcat(ret_val, " ");
  31                         }
  32                 }
  33         }
  34         return ret_val;
  35 }