/* * Copyright (c) 2000-2001 Apple Computer, Inc. All Rights Reserved. * * The contents of this file constitute Original Code as defined in and are * subject to the Apple Public Source License Version 1.2 (the 'License'). * You may not use this file except in compliance with the License. Please obtain * a copy of the License at http://www.apple.com/publicsource and read it before * using this file. * * This Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the * specific language governing rights and limitations under the License. */ /* * file: .../tbl-example/example.c - decodes and prints a given BER * PersonnelRecord value and re-encodes it to the file * "p-rec.out.ber". This example would be similar to your user code in * that you run "mkchdr" to build a nicely named description of data * structure (PersonnelRecord in this case). The table tools deal with * the same data structure in a generic way and don't use/need mkchdr. * You must not change the output of mkchdr otherwise the table encoder * decoder, etc will not understand it. * * Mike Sample * * Copyright (C) 1993 Michael Sample * and the University of British Columbia * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program and the associated libraries are distributed in the hope * that they will be useful, but WITHOUT ANY WARRANTY; without even the * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR * PURPOSE. See the GNU General Public License and GNU Library General * Public License for more details. * * $Header: /cvs/Darwin/Security/SecuritySNACCRuntime/tbl-example/example.c,v 1.1.1.1 2001/05/18 23:14:10 mb Exp $ * $Log: example.c,v $ * Revision 1.1.1.1 2001/05/18 23:14:10 mb * Move from private repository to open source repository * * Revision 1.2 2001/05/05 00:59:30 rmurphy * Adding darwin license headers * * Revision 1.1.1.1 1999/03/16 18:06:53 aram * Originals from SMIME Free Library. * * Revision 1.1 1997/02/15 19:33:26 rj * first check-in * */ #include "tbl-incl.h" #include "exp-buf.h" #include "sbuf.h" #include "p-rec.h" /* include the file we made with mkchdr */ char *outputFileNameG = "p-rec.out.ber"; void Usage PARAMS ((prg), char *prg) { fprintf (stderr, "Usage: %s <tt file name> <p-rec ber file> \n\n", prg); fprintf (stderr, "E.g. %s p-rec.tt p-rec.ber\n\n", prg); fprintf (stderr, "The BER values in the file list will be decoded, printed to stdout and then re-encoded to the file \"%s\"\n", outputFileNameG); } int main PARAMS ((argc, argv), int argc _AND_ char **argv) { char *tblFileName; char *berFileName; TBL *tbl; int i; char *fileData; unsigned long int fsize; PersonnelRecord *val; unsigned long int bytesDecoded; unsigned long int bytesEncoded; SBuf sb; /* use simple buffers for reading in (know sizes) */ ExpBuf *ebPtr; /* use expanding bufs for enc (usually don't know sizes)*/ GenBuf gb; FILE *outputFile; if (argc != 3) { Usage (argv[0]); return 1; } tblFileName = argv[1]; berFileName = argv[2]; /* init mem pool to hold decoded val */ InitNibbleMem (1024, 1024); /* read in and decode the type table */ tbl = LoadTblFile (tblFileName); if (tbl == NULL) return 1; fileData = LoadFile (berFileName, &fsize); if (fileData == NULL) return 1; SBufInstallData (&sb, fileData, fsize); PutSBufInGenBuf (&sb, &gb); fprintf (stdout, "\n\n-- decoded contents of BER PersonnelRecord file: \"%s\"--\n", berFileName); val = TblDecode (tbl, NULL, "PersonnelRecord", &gb, &bytesDecoded); if (val == NULL) fprintf (stdout, "-- Decoding error occured somewhere -- \n"); else TblPrintValue (tbl, NULL, "PersonnelRecord", stdout, val); fprintf (stdout, "\n\n -- decoded %d bytes for the above value --\n\n", bytesDecoded, berFileName); free (fileData); /* was malloc'd in LoadFile */ /* * process value here * (This is where the header file generated by mkchdr is * useful - you can access the decoded value in a standard * /easier way). * * Ok, well, the names "field0" etc aren't that nice * but what did you expect - they aren't named in the ASN.1 * spec so mkchdr just makes them up. To fix this, just * add field names to you ASN.1 spec - it will not change the * way the values are encoded - so you're not making it * incompatible with the original. (not including value notation) */ printf ("The following printout is an example of using the\n"); printf ("hdr file generated by mkchdr to access the data\n"); printf ("returned from the table decoder. Look in \"example.c\"\n\n"); printf ("***** JQ GUMBY & CO Database *****************************************\n"); printf ("Employee Name: %s %s %s\n", val->field0->givenName->octs, val->field0->initial->octs, val->field0->familyName->octs); printf ("Title: %s\n", val->title->octs); printf ("Employee Number: %d\n", *val->field1); printf ("Date of Hire: %s\n", val->dateOfHire->octs); printf ("Name of Spouse: %s %s %s\n", val->nameOfSpouse->givenName->octs, val->nameOfSpouse->initial->octs, val->nameOfSpouse->familyName->octs); printf ("Number of Children: %d\n", AsnListCount (val->children)); printf ("**********************************************************************\n\n"); /* * finished playing with the decoded value. * now re-encode the value. Using an expbuf to hold the encoded val * because they can grow and in general you can predict a values * encoded size (although we could assume that is would be close to * the same size as the one we read in at the beginning of this prg). * (note: the size of PersonnelRecord BER value we decoded may be * different from the size of the re-encoded version depending on * the use of indefinite or definite lengths. Both are valid BER.) */ fprintf (stdout, "now re-encoding the PersonnelRecord value to \"%s\"\n", outputFileNameG); ebPtr = ExpBufAllocBufAndData(); ExpBufResetInWriteRvsMode (ebPtr); /* set up to hold encoding (= writing) */ PutExpBufInGenBuf (ebPtr, &gb); if (TblEncode (tbl, NULL, "PersonnelRecord", &gb, val, &bytesEncoded) < 0) fprintf (stderr, "main: error encoding the PersonnelRecord\n"); /* copy ExpBuf data to file */ outputFile = fopen (outputFileNameG, "w"); if (outputFile == NULL) { fprintf (stderr, "error - could not open file \"%s\"\n", outputFileNameG); perror ("main: fopen:"); } ExpBufCopyToFile (ebPtr, outputFile); fclose (outputFile); /* free the encoded version */ ExpBufFreeBufAndDataList (ebPtr); return 0; } /* main */