]>
git.ipfire.org Git - thirdparty/squid.git/blob - lib/uudecode.c
4 /* aaaack but it's fast and const should make it shared text page. */
5 const int pr2six
[256] = {
6 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
7 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 62, 64, 64, 64, 63,
8 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 64, 64, 64, 64, 64, 64, 64, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
9 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 64, 64, 64, 64, 64, 64, 26, 27,
10 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51,
11 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
12 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
13 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
14 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
15 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
16 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64
20 uudecode(const char *bufcoded
)
23 const unsigned char *bufin
;
25 unsigned char *bufout
;
28 /* Strip leading whitespace. */
30 while (*bufcoded
== ' ' || *bufcoded
== '\t')
33 /* Figure out how many characters are in the input buffer.
34 * Allocate this many from the per-transaction pool for the result.
36 bufin
= (const unsigned char *) bufcoded
;
37 while (pr2six
[*(bufin
++)] <= 63);
38 nprbytes
= (const char *) bufin
- bufcoded
- 1;
39 nbytesdecoded
= ((nprbytes
+ 3) / 4) * 3;
41 bufplain
= xmalloc(nbytesdecoded
+ 1);
42 bufout
= (unsigned char *) bufplain
;
43 bufin
= (const unsigned char *) bufcoded
;
45 while (nprbytes
> 0) {
47 (unsigned char) (pr2six
[*bufin
] << 2 | pr2six
[bufin
[1]] >> 4);
49 (unsigned char) (pr2six
[bufin
[1]] << 4 | pr2six
[bufin
[2]] >> 2);
51 (unsigned char) (pr2six
[bufin
[2]] << 6 | pr2six
[bufin
[3]]);
57 if (pr2six
[bufin
[-2]] > 63)
62 bufplain
[nbytesdecoded
] = '\0';