usr/src/lib/libbsm/common/adrf.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25
  26 #pragma ident   "%Z%%M% %I%     %E% SMI"
  27
  28 #include <stdio.h>
  29 #include <sys/types.h>
  30 #include <bsm/audit.h>
  31 #include <bsm/libbsm.h>
  32 #include <bsm/audit_record.h>
  33
  34
  35 /*
  36  * adr_struct.now is used to calculate the record length so
  37  * end of record will be recognized.
  38  */
  39
  40
  41 void
  42 adrf_start(adrf_t *adrf, adr_t *adr, FILE *fp)
  43 {
  44         adrf->adrf_fp = fp;
  45         adrf->adrf_adr = adr;
  46         adrf->adrf_adr->adr_now = NULL;
  47 }
  48
  49 /*
  50  * adrf_char - pull out characters
  51  */
  52 int
  53 adrf_char(adrf_t *adrf, char *cp, int count)
  54 {
  55         int c;  /* read character in here */
  56
  57         if (count < 0)
  58                 return (-1);
  59         while (count--) {
  60                 if ((c = fgetc(adrf->adrf_fp)) == EOF)
  61                         return (-1);
  62                 *cp++ = c;
  63                 adrf->adrf_adr->adr_now += sizeof (char);
  64         }
  65         return (0);
  66 }
  67
  68 /*
  69  * adrf_short - pull out shorts
  70  */
  71 int
  72 adrf_short(adrf_t *adrf, short *sp, int count)
  73 {
  74         int c;  /* read character in here */
  75
  76         if (count < 0)
  77                 return (-1);
  78         while (count--) {
  79                 if ((c = fgetc(adrf->adrf_fp)) == EOF)
  80                         return (-1);
  81                 *sp = c << 8;
  82                 if ((c = fgetc(adrf->adrf_fp)) == EOF)
  83                         return (-1);
  84                 *sp++ |= c & 0x00ff;
  85                 adrf->adrf_adr->adr_now += sizeof (short);
  86         }
  87         return (0);
  88 }
  89
  90 /*
  91  * adrf_int32 - pull out int32
  92  */
  93 int adrf_int(adrf_t *adrf, int32_t *lp, int count);
  94 int adrf_long(adrf_t *adrf, int32_t *lp, int count);
  95
  96 #pragma weak adrf_int = adrf_int32
  97 #pragma weak adrf_long = adrf_int32
  98
  99 int
 100 adrf_int32(adrf_t *adrf, int32_t *lp, int count)
 101 {
 102         int i;
 103         int c;  /* read character in here */
 104
 105         if (count < 0)
 106                 return (-1);
 107         for (; count--; lp++) {
 108                 *lp = 0;
 109                 for (i = 0; i < 4; i++) {
 110                         if ((c = fgetc(adrf->adrf_fp)) == EOF)
 111                                 return (-1);
 112                         *lp <<= 8;
 113                         *lp |= c & 0x000000ff;
 114                 }
 115                 adrf->adrf_adr->adr_now += sizeof (int32_t);
 116         }
 117         return (0);
 118 }
 119
 120 int
 121 adrf_int64(adrf_t *adrf, int64_t *lp, int count)
 122 {
 123         int i;
 124         int c;  /* read character in here */
 125
 126         if (count < 0)
 127                 return (-1);
 128         for (; count--; lp++) {
 129                 *lp = 0;
 130                 for (i = 0; i < 8; i++) {
 131                         if ((c = fgetc(adrf->adrf_fp)) == EOF)
 132                                 return (-1);
 133                         *lp <<= 8;
 134                         *lp |= c & 0x00000000000000ff;
 135                 }
 136                 adrf->adrf_adr->adr_now += sizeof (int64_t);
 137         }
 138         return (0);
 139 }
 140
 141 int adrf_u_int(adrf_t *adrf, uint32_t *cp, int count);
 142 int adrf_u_long(adrf_t *adrf, uint32_t *cp, int count);
 143
 144 #pragma weak adrf_u_int = adrf_u_int32
 145 #pragma weak adrf_u_long = adrf_u_int32
 146
 147 int
 148 adrf_u_int32(adrf_t *adrf, uint32_t *cp, int count)
 149 {
 150         return (adrf_int32(adrf, (int32_t *)cp, count));
 151 }
 152
 153 int
 154 adrf_u_char(adrf_t *adrf, uchar_t *cp, int count)
 155 {
 156         return (adrf_char(adrf, (char *)cp, count));
 157 }
 158
 159 int
 160 adrf_u_int64(adrf_t *adrf, uint64_t *lp, int count)
 161 {
 162         return (adrf_int64(adrf, (int64_t *)lp, count));
 163 }
 164
 165 int
 166 adrf_u_short(adrf_t *adrf, ushort_t *sp, int count)
 167 {
 168         return (adrf_short(adrf, (short *)sp, count));
 169 }
 170
 171 int
 172 adrf_peek(adrf_t *adrf)
 173 {
 174         return (ungetc(fgetc(adrf->adrf_fp), adrf->adrf_fp));
 175 }