85 lines
1.4 KiB
Markdown
85 lines
1.4 KiB
Markdown
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b64.c
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=====
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Base64 encode/decode
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## install
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```sh
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$ clib install jwerle/b64.c
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```
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## usage
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```c
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#include <b64/b64.h>
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```
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or
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```c
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#include <b64.h>
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```
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## example
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```c
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include "b64.h"
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int
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main (void) {
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unsigned char *str = "brian the monkey and bradley the kinkajou are friends";
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char *enc = b64_encode(str, strlen(str));
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printf("%s\n", enc); // YnJpYW4gdGhlIG1vbmtleSBhbmQgYnJhZGxleSB0aGUga2lua2Fqb3UgYXJlIGZyaWVuZHM=
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char *dec = b64_decode(enc, strlen(enc));
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printf("%s\n", dec); // brian the monkey and bradley the kinkajou are friends
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free(enc);
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free(dec);
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return 0;
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}
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```
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## api
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Base64 index table
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```c
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static const char b64_table[] = {
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'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H',
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'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P',
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'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X',
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'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f',
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'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n',
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'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
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'w', 'x', 'y', 'z', '0', '1', '2', '3',
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'4', '5', '6', '7', '8', '9', '+', '/'
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};
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```
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Encode `unsigned char *` source with `size_t` size.
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Returns a `char *` base64 encoded string
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```c
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char *
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b64_encode (const unsigned char *, size_t);
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```
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Decode `char *` source with `size_t` size.
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Returns a `unsigned char *` base64 decoded string
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```c
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unsigned char *
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b64_decode (const char *, size_t);
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```
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## license
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MIT
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