1 '\" te
   2 .\" Copyright (c) 2002, Sun Microsystems, Inc. All Rights Reserved.
   3 .\" The contents of this file are subject to the terms of the Common Development and Distribution License (the "License").  You may not use this file except in compliance with the License.
   4 .\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing.  See the License for the specific language governing permissions and limitations under the License.
   5 .\" When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE.  If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
   6 .TH CRYPT_GENHASH_IMPL 3C "Jun 10, 2002"
   7 .SH NAME
   8 crypt_genhash_impl \- generate encrypted password
   9 .SH SYNOPSIS
  10 .LP
  11 .nf
  12 #include <crypt.h>
  13 
  14 \fBchar *\fR\fBcrypt_genhash_impl\fR(\fBchar *\fR\fIctbuffer\fR, \fBsize_t\fR \fIctbufflen\fR,
  15      \fBconst char *\fR\fIplaintext\fR, \fBconst char *\fR\fIsalt\fR, \fBconst char **\fR\fIparams\fR);
  16 .fi
  17 
  18 .SH DESCRIPTION
  19 .LP
  20 The \fBcrypt_genhash_impl()\fR function is called by \fBcrypt\fR(3C) to
  21 generate the encrypted password \fIplaintext\fR.
  22 .sp
  23 .LP
  24 The \fIctbuffer\fR argument is a pointer to an MT-safe buffer of
  25 \fIctbufflen\fR size that is used to return the result.
  26 .sp
  27 .LP
  28 The \fIsalt\fR argument is the salt used in encoding.
  29 .sp
  30 .LP
  31 The \fIparams\fR argument is an \fIargv\fR-like null-terminated vector of type
  32 \fBchar *\fR. The first element of \fIparams\fR represents the mechanism token
  33 name from \fBcrypt.conf\fR(4). The remaining elements of \fIparams\fR represent
  34 strings of the form <\fBparameter\fR>[=<\fBvalue\fR>] to allow passing in
  35 additional information from the \fBcrypt.conf\fR entry, such as specifying
  36 rounds information "\fBrounds=4096\fR".
  37 .sp
  38 .LP
  39 The \fBcrypt_genhash_impl()\fR function must not \fBfree\fR(3C) \fIctbufflen\fR
  40 on error.
  41 .SH RETURN VALUES
  42 .LP
  43 Upon successful completion, \fBcrypt_genhash_impl()\fR returns a pointer to the
  44 encoded version of \fIplaintext\fR. Otherwise a null pointer is returned and
  45 \fBerrno\fR is set to indicate the error.
  46 .SH ERRORS
  47 .LP
  48 The \fBcrypt_genhash_impl()\fR function will fail if:
  49 .sp
  50 .ne 2
  51 .na
  52 \fB\fBEINVAL\fR\fR
  53 .ad
  54 .RS 11n
  55 The configuration file \fBcrypt.conf\fR contains an invalid entry.
  56 .RE
  57 
  58 .sp
  59 .ne 2
  60 .na
  61 \fB\fBELIBACC\fR\fR
  62 .ad
  63 .RS 11n
  64 The required shared library was not found.
  65 .RE
  66 
  67 .sp
  68 .ne 2
  69 .na
  70 \fB\fBENOMEM\fR\fR
  71 .ad
  72 .RS 11n
  73 There is insufficient memory to perform hashing.
  74 .RE
  75 
  76 .SH ATTRIBUTES
  77 .LP
  78 See \fBattributes\fR(5) for descriptions of the following attributes:
  79 .sp
  80 
  81 .sp
  82 .TS
  83 box;
  84 c | c
  85 l | l .
  86 ATTRIBUTE TYPE  ATTRIBUTE VALUE
  87 _
  88 Interface Stability     Evolving
  89 _
  90 MT-Level        MT-Safe
  91 .TE
  92 
  93 .SH SEE ALSO
  94 .LP
  95 \fBpasswd\fR(1), \fBcrypt\fR(3C), \fBcrypt_gensalt_impl\fR(3C), \fBfree\fR(3C),
  96 \fBgetpassphrase\fR(3C), \fBcrypt.conf\fR(4), \fBpasswd\fR(4),
  97 \fBattributes\fR(5)