man/man3c/crypt_genhash_impl.3c

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 CRYPT_GENHASH_IMPL 3C "Jun 10, 2002"
 NAME
crypt_genhash_impl - generate encrypted password
 SYNOPSIS

#include <crypt.h>

char *crypt_genhash_impl(char *ctbuffer, size_t ctbufflen,
 const char *plaintext, const char *salt, const char **params);


 DESCRIPTION

The crypt_genhash_impl() function is called by crypt(3C) to
generate the encrypted password plaintext.

The ctbuffer argument is a pointer to an MT-safe buffer of
ctbufflen size that is used to return the result.

The salt argument is the salt used in encoding.

The params argument is an argv-like null-terminated vector of type
char *. The first element of params represents the mechanism token
name from crypt.conf(4). The remaining elements of params represent
strings of the form <parameter>[=<value>] to allow passing in
additional information from the crypt.conf entry, such as specifing
rounds information "rounds=4096".

The crypt_genhash_impl() function must not free(3C) ctbufflen
on error.
 RETURN VALUES

Upon successful completion, crypt_genhash_impl() returns a pointer to the
encoded version of plaintext. Otherwise a null pointer is returned and
errno is set to indicate the error.
 ERRORS

The crypt_genhash_impl() function will fail if:
EINVAL

The configuration file crypt.conf contains an invalid entry.


ELIBACC

The required shared library was not found.


ENOMEM

There is insufficient memory to perform hashing.


 ATTRIBUTES

See attributes(5) for descriptions of the following attributes:


ATTRIBUTE TYPE ATTRIBUTE VALUE
Interface Stability Evolving
MT-Level MT-Safe


 SEE ALSO

passwd(1), crypt(3C), crypt_gensalt_impl(3C), free(3C),
getpassphrase(3C), crypt.conf(4), passwd(4),
attributes(5)