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basic: util - add base64mem() function similar to hexmem()

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This implements RFC4648 for a slightly more compact representation of
binary data compared to hex (6 bits per character rather than 4).
This commit is contained in:
Tom Gundersen
2015-07-12 19:24:14 +02:00
parent 30494563f2
commit 13a5d76b32
3 changed files with 279 additions and 0 deletions
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src/basic/util.h
+5
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@@ -240,6 +240,8 @@ char octchar(int x) _const_;
int unoctchar(char c) _const_;
char decchar(int x) _const_;
int undecchar(char c) _const_;
char base64char(int x) _const_;
int unbase64char(char c) _const_;
char *cescape(const char *s);
size_t cescape_char(char c, char *buf);
@@ -616,6 +618,9 @@ static inline void *mempset(void *s, int c, size_t n) {
char *hexmem(const void *p, size_t l);
int unhexmem(const char *p, size_t l, void **mem, size_t *len);
char *base64mem(const void *p, size_t l);
int unbase64mem(const char *p, size_t l, void **mem, size_t *len);
char *strextend(char **x, ...) _sentinel_;
char *strrep(const char *s, unsigned n);