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NAME

SYNOPSIS

#include <librock/parse.h>

int
librock_base64decN(
    const char *wptr.  /* Input buffer */
    int amt,     /* Bytes at input buffer.  Must be a multiple of 4 */
    char *optr;  /* Output buffer */
);

DESCRIPTION

Returns the number of characters stored at optr, which is normally 3, but may be less than 3 at the end of the encoded block if there was padding.

Typical use is

#ifdef librock_TYPICAL_USE_base64decN
    #include <stdio.h>
    char *wptr = "U29tZSBlbmNvZGVkIHN0cmluZw==";
    char *optr = wptr;
    if (strlen(wptr) % 4) {
        fprintf(stderr,"%s","bad input.  base64 encodings are always a multiple of 4\n");
    } else {
        char *result = wptr; /* In place */
        optr += librock_base64decN(wptr,strlen(wptr),optr);
        *optr = '\0';
        printf("%s\n",result);
    }
#endif

USES

  // No external calls

LICENSE

  Copyright 1998-2002 Forrest J. Cavalier III, http://www.mibsoftware.com
  Licensed under BSD-ish license, NO WARRANTY. Copies must retain this block.
  License text in <librock/license/librock.txt> librock_LIDESC_HC=12440211096131f5976d36be0cddca4cd9152e45

Source Code

This software is part of Librock

• Source code which is Open-source, Free (Libre) and free (no cost)
• Namespace limited. All compile-time macros and names visible at link time are prefixed by "librock_". Integrate into your project and expect no name collisions.
• Stable API means new functions get new names so that there is no risk that updating a source file will break existing applications.
• Highly portable, cross-platform, and multithread compatible. Works with many machines, compilers, and operating systems (gcc/MSVC/Windows/Linux/BSD).

Verbatim copying and distribution of this generated page is permitted in any medium provided that no changes are made.
(The source of this manual page may be covered by a more permissive license which allows modifications.)

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