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Use const pointer to source in base64 and hex routines.

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This commit is contained in:
Guus Sliepen 2011-07-16 22:38:50 +02:00
parent 574b380dfc
commit fa4a01e4a2
2 changed files with 8 additions and 8 deletions
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8
src/utils.c
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@ -46,14 +46,14 @@ static int charb64decode(char c) {
return 63; return 63;
} }
int hex2bin(char *src, char *dst, int length) { int hex2bin(const char *src, char *dst, int length) {
int i; int i;
for(i = 0; i < length && src[i * 2] && src[i * 2 + 1]; i++) for(i = 0; i < length && src[i * 2] && src[i * 2 + 1]; i++)
dst[i] = charhex2bin(src[i * 2]) * 16 + charhex2bin(src[i * 2 + 1]); dst[i] = charhex2bin(src[i * 2]) * 16 + charhex2bin(src[i * 2 + 1]);
return i; return i;
} }
int bin2hex(char *src, char *dst, int length) { int bin2hex(const char *src, char *dst, int length) {
int i; int i;
for(i = length - 1; i >= 0; i--) { for(i = length - 1; i >= 0; i--) {
dst[i * 2 + 1] = hexadecimals[(unsigned char) src[i] & 15]; dst[i * 2 + 1] = hexadecimals[(unsigned char) src[i] & 15];
@ -63,7 +63,7 @@ int bin2hex(char *src, char *dst, int length) {
return length * 2; return length * 2;
} }
int b64decode(char *src, char *dst, int length) { int b64decode(const char *src, char *dst, int length) {
int i; int i;
uint32_t triplet = 0; uint32_t triplet = 0;
unsigned char *udst = dst; unsigned char *udst = dst;
@ -90,7 +90,7 @@ int b64decode(char *src, char *dst, int length) {
} }
} }
int b64encode(char *src, char *dst, int length) { int b64encode(const char *src, char *dst, int length) {
uint32_t triplet; uint32_t triplet;
const unsigned char *usrc = src; const unsigned char *usrc = src;
int si = length / 3 * 3; int si = length / 3 * 3;

8
src/utils.h
View file

@ -21,11 +21,11 @@
#ifndef __TINC_UTILS_H__ #ifndef __TINC_UTILS_H__
#define __TINC_UTILS_H__ #define __TINC_UTILS_H__
extern int hex2bin(char *src, char *dst, int length); extern int hex2bin(const char *src, char *dst, int length);
extern int bin2hex(char *src, char *dst, int length); extern int bin2hex(const char *src, char *dst, int length);
extern int b64encode(char *src, char *dst, int length); extern int b64encode(const char *src, char *dst, int length);
extern int b64decode(char *src, char *dst, int length); extern int b64decode(const char *src, char *dst, int length);
#ifdef HAVE_MINGW #ifdef HAVE_MINGW
extern const char *winerror(int); extern const char *winerror(int);