NE_STRHASH(3)                 neon API reference                 NE_STRHASH(3)

NAME
       ne_strhash, ne_vstrhash - string hash interface

SYNOPSIS
       #include <ne_string.h>

       char *ne_strhash(unsigned int flags, ...);

       char *ne_vstrhash(unsigned int flags, va_list ap);

DESCRIPTION
       The ne_strhash and ne_vstrhash functions can be used to create hashes.
       The varargs argument list must be const char * strings followed by a
       NULL terminator. The flags argument must select exactly one hash
       algorithm from the list below, which can be optionally bitwise-ORed
       with one of the formatting option. The hash is calculated for the
       concatenation of the argument list, without separators.

   Hash algorithms
       The following hash algorithms are available:

       NE_HASH_MD5
           MD5

       NE_HASH_SHA256
           SHA-256 (SHA-2)

       NE_HASH_SHA512
           SHA-512 (SHA-2)

       NE_HASH_SHA256_256
           SHA-512/256 (SHA-2)

   Formatting options
       By default, the hash is returned as a hexadecimal lower-case character
       string. The following formatting options are available:

       NE_HASH_COLON
           colon-separated hex pairs, e.g.  "aa:11:22..."

       NE_HASH_SPACE
           space-separated hex pairs, e.g.  "aa 11 22..."

RETURN VALUE
       The return value is the ASCII hexadecimal representation of the hash as
       a malloc-allocated, NUL-terminated string, or NULL if the hash cannot
       be created. The string length is determined by the hash algorithm (and
       formatting options used). Support for hash algorithms is specific to
       the SSL toolkit with which neon is compiled. Some systems will further
       restrict hash availability at runtime, e.g. due to FIPS mode.

AUTHOR
       Joe Orton
           Author.

COPYRIGHT

neon 0.33.0                     29 January 2024                  NE_STRHASH(3)