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crypt_gensalt_impl(3c)

crypt_gensalt_impl(3C)   Standard C Library Functions   crypt_gensalt_impl(3C)

NAME
       crypt_gensalt_impl - generate salt for password encryption

SYNOPSIS
       #include <crypt.h>

       char *crypt_gensalt_impl(char *gsbuffer, size_t gsbufflen,
            const char *oldsalt, const struct passwd *userinfo,
            const char **params);

DESCRIPTION
       The  crypt_gensalt_impl() function provided by a pluggable crypt module
       is called by is called by crypt_gensalt(3C) to generate  the  salt  for
       password encryption.


       The  gsbuffer argument is a pointer to an MT-safe buffer of size gsbuf‐
       flen.


       The oldsalt and userinfo arguments are passed unchanged from crypt_gen‐
       salt(3C).


       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(5). The remaining elements of params  represent  strings  of
       the  form <parameter>[=<value>] to allow passing in additional informa‐
       tion from the crypt.conf entry, such as specifying  rounds  information
       "rounds=4096".


       The  value returned by crypt_gensalt_impl() points to a thread-specific
       buffer to be freed by the caller  of  crypt_gensalt(3C)  after  calling
       crypt(3C).

RETURN VALUES
       Upon  successful  completion, crypt_gensalt_impl() returns a pointer to
       the new salt. Otherwise a null pointer is returned and errno is set  to
       indicate the error.

ERRORS
       The crypt_gensalt_impl() function will fail if:

       EINVAL     The configuration file crypt.conf contains an invalid entry.


       ELIBACC    The required crypt shared library was not found.


       ENOMEM     There is insufficient memory to perform hashing.


ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:

       tab()  box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE TYPEAT‐
       TRIBUTE VALUE _ Interface StabilityCommitted _ MT-LevelMT-Safe


SEE ALSO
       passwd(1), crypt(3C), crypt_genhash_impl(3C),  crypt_gensalt(3C),  get‐
       passphrase(3C), crypt.conf(5), passwd(5), attributes(7)

Oracle Solaris 11.4               9 Mar 2020            crypt_gensalt_impl(3C)
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