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Update base64 compat.

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This commit is contained in:
Nicholas Marriott
2026-02-26 10:55:27 +00:00
parent 0800e51d41
commit 478eaea982
2 changed files with 15 additions and 21 deletions
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34
compat/base64.c
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@@ -1,4 +1,4 @@
/* $OpenBSD: base64.c,v 1.8 2015/01/16 16:48:51 deraadt Exp $ */
/* $OpenBSD: base64.c,v 1.15 2021/10/25 14:41:09 jca Exp $ */
/*
* Copyright (c) 1996 by Internet Software Consortium.
@@ -46,15 +46,15 @@
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <arpa/nameser.h>
#include <ctype.h>
#include <resolv.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "compat.h"
static const char Base64[] =
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
static const char Pad64 = '=';
@@ -107,9 +107,9 @@ static const char Pad64 = '=';
end of the data is performed using the '=' character.
Since all base64 input is an integral number of octets, only the
-------------------------------------------------
-------------------------------------------------
following cases can arise:
(1) the final quantum of encoding input is an integral
multiple of 24 bits; here, the final unit of encoded
output will be an integral multiple of 4 characters
@@ -123,15 +123,12 @@ static const char Pad64 = '=';
*/
int
b64_ntop(src, srclength, target, targsize)
u_char const *src;
size_t srclength;
char *target;
size_t targsize;
b64_ntop(unsigned char const *src, size_t srclength, char *target,
size_t targsize)
{
size_t datalength = 0;
u_char input[3];
u_char output[4];
unsigned char input[3];
unsigned char output[4];
int i;
while (2 < srclength) {
@@ -152,14 +149,14 @@ b64_ntop(src, srclength, target, targsize)
target[datalength++] = Base64[output[2]];
target[datalength++] = Base64[output[3]];
}
/* Now we worry about padding. */
if (0 != srclength) {
/* Get what's left. */
input[0] = input[1] = input[2] = '\0';
for (i = 0; i < srclength; i++)
input[i] = *src++;
output[0] = input[0] >> 2;
output[1] = ((input[0] & 0x03) << 4) + (input[1] >> 4);
output[2] = ((input[1] & 0x0f) << 2) + (input[2] >> 6);
@@ -187,13 +184,10 @@ b64_ntop(src, srclength, target, targsize)
*/
int
b64_pton(src, target, targsize)
char const *src;
u_char *target;
size_t targsize;
b64_pton(char const *src, unsigned char *target, size_t targsize)
{
int tarindex, state, ch;
u_char nextbyte;
unsigned char nextbyte;
char *pos;
state = 0;
@@ -207,7 +201,7 @@ b64_pton(src, target, targsize)
break;
pos = strchr(Base64, ch);
if (pos == 0) /* A non-base64 character. */
if (pos == 0) /* A non-base64 character. */
return (-1);
switch (state) {