code.c

   1 #include <stddef.h>
   2 #include <stdio.h>
   3 #include "debug.h"
   4
   5 #include "code.h"
   6
   7 /* concatenate code */
   8
   9 int codcat (char *dst, size_t n, char *src)
  10 {
  11     while ((*dst != 0) && (n > 0)) {
  12         n--;
  13         dst++;
  14     }
  15
  16     return (n > 0) ? codcpy (dst, n, src) : -1;
  17 }
  18
  19 /* compare 2 codes */
  20
  21 int codcmp (char *cod1, char *cod2)
  22 {
  23     int i = -1;
  24
  25     do {
  26         i++;
  27         if (cod1[i] != cod2[i]) {
  28             return (cod1[i] < cod2[i]) ? -1 : 1;
  29         }
  30     } while (cod1[i] != 0);
  31
  32     return 0;
  33 }
  34
  35 /* copy code */
  36
  37 int codcpy (char *dst, size_t n, char *src)
  38 {
  39     size_t i;
  40
  41     for (i = 0; i < n; i++) {
  42         dst[i] = src[i];
  43         if (src[i]== 0) {
  44             return i;
  45         }
  46     }
  47     VERBOSE (ERROR, printf ("Buffer too short\n"));
  48
  49     return -1;
  50 }
  51
  52 /* code length */
  53
  54 int codlen (char *code)
  55 {
  56     int i = 0;
  57
  58     while (code[i] != 0) {
  59         i++;
  60     }
  61
  62     return i;
  63 }
  64
  65 // vim: ts=4 sw=4 et