Commit | Line | Data |
---|---|---|
c9987f3b | 1 | #include "debug.h" |
46fb351f | 2 | #include "fdprintf.h" |
c9987f3b LM |
3 | |
4 | #include "code.h" | |
5 | ||
c84ea202 LM |
6 | /* constants */ |
7 | ||
8 | #define NB_LEAFS ((NB_BYTES + 1) * NB_BYTES / 2) | |
9 | ||
c9987f3b LM |
10 | /* concatenate code */ |
11 | ||
92fc2c44 | 12 | int codcat (char *dst, int n, char *src) |
c9987f3b LM |
13 | { |
14 | while ((*dst != 0) && (n > 0)) { | |
15 | n--; | |
16 | dst++; | |
17 | } | |
c84ea202 | 18 | |
c9987f3b LM |
19 | return (n > 0) ? codcpy (dst, n, src) : -1; |
20 | } | |
21 | ||
22 | /* compare 2 codes */ | |
23 | ||
24 | int codcmp (char *cod1, char *cod2) | |
25 | { | |
2cbffab5 LM |
26 | while ((*cod1 != 0) || (*cod2 != 0)) { |
27 | int test = *cod1++ - *cod2++; | |
28 | if (test != 0) { | |
29 | return (test < 0) ? -1 : 1; | |
c9987f3b | 30 | } |
2cbffab5 | 31 | } |
c9987f3b LM |
32 | |
33 | return 0; | |
34 | } | |
35 | ||
36 | /* copy code */ | |
37 | ||
92fc2c44 | 38 | int codcpy (char *dst, int n, char *src) |
c9987f3b | 39 | { |
92fc2c44 | 40 | int i; |
c9987f3b LM |
41 | |
42 | for (i = 0; i < n; i++) { | |
43 | dst[i] = src[i]; | |
44 | if (src[i]== 0) { | |
45 | return i; | |
46 | } | |
47 | } | |
c84ea202 | 48 | VERBOSE (ERROR, PRINTERR ("Buffer too short\n")); |
c9987f3b LM |
49 | |
50 | return -1; | |
51 | } | |
52 | ||
53 | /* code length */ | |
54 | ||
55 | int codlen (char *code) | |
56 | { | |
57 | int i = 0; | |
58 | ||
59 | while (code[i] != 0) { | |
60 | i++; | |
61 | } | |
62 | ||
63 | return i; | |
64 | } | |
65 | ||
c84ea202 LM |
66 | /* get leaf(s) */ |
67 | ||
68 | leaf_t *getleaf (int n) | |
69 | { | |
70 | static leaf_t leafs[NB_LEAFS] = {0}; | |
71 | static int pos = 0; | |
72 | leaf_t *pt = (void *)0; | |
73 | ||
74 | if (pos + n < NB_LEAFS) { | |
75 | pt = leafs + pos; | |
76 | pos += n; | |
77 | } else { | |
78 | VERBOSE (ERROR, PRINTERR ("No more leaf avaliable\n")); | |
79 | } | |
80 | ||
81 | return pt; | |
82 | } | |
83 | ||
84 | /* vim: set ts=4 sw=4 et: */ |