118 lines
4.4 KiB
C
118 lines
4.4 KiB
C
/*****************************************************************************/
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/* */
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/* ACVERS.C */
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/* */
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/* Get the version and build of an areacode data file */
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/* */
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/* */
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/* */
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/* (C) 1996,97 Ullrich von Bassewitz */
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/* Wacholderweg 14 */
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/* D-70597 Stuttgart */
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/* EMail: uz@musoftware.com */
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/* */
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/* */
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/* This software is provided 'as-is', without any express or implied */
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/* warranty. In no event will the authors be held liable for any damages */
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/* arising from the use of this software. */
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/* */
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/* Permission is granted to anyone to use this software for any purpose, */
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/* including commercial applications, and to alter it and redistribute it */
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/* freely, subject to the following restrictions: */
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/* */
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/* 1. The origin of this software must not be misrepresented; you must not */
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/* claim that you wrote the original software. If you use this software */
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/* in a product, an acknowledgment in the product documentation would be */
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/* appreciated but is not required. */
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/* 2. Altered source versions must be plainly marked as such, and must not */
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/* be misrepresented as being the original software. */
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/* 3. This notice may not be removed or altered from any source */
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/* distribution. */
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/* */
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/*****************************************************************************/
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/* This code assumes 8 bit bytes */
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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/*****************************************************************************/
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/* Data */
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/*****************************************************************************/
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#define MAGIC0 0x68
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#define MAGIC1 0x57
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#define MAGIC2 0x46
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#define MAGIC3 0x35
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/*****************************************************************************/
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/* Code */
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/*****************************************************************************/
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static void Usage (const char* ProgName)
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/* Print usage information and exit */
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{
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printf ("%s: Print the version of an areacode database\n\n"
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"Usage: \t%s file ...\n",
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ProgName, ProgName);
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exit (1);
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}
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int main (int argc, char* argv [])
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{
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int I;
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if (argc < 2) {
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Usage (argv [0]);
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}
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for (I = 1; I < argc; I++) {
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FILE* F;
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const char* Filename = argv [I];
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unsigned char MagicBuf [4];
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unsigned char BuildBuf [2];
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unsigned char VersionBuf [2];
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unsigned Build;
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if ((F = fopen (Filename, "rb")) == 0) {
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perror ("Cannot open input file");
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exit (2);
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}
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fread (MagicBuf, sizeof (MagicBuf), 1, F);
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if (MagicBuf [0] != MAGIC0 || MagicBuf [1] != MAGIC1 ||
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MagicBuf [2] != MAGIC2 || MagicBuf [3] != MAGIC3) {
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fprintf (stderr, "No dial prefix database\n");
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exit (3);
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}
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fread (BuildBuf, sizeof (BuildBuf), 1, F);
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fread (VersionBuf, sizeof (VersionBuf), 1, F);
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fclose (F);
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Build = ((unsigned) BuildBuf [1]) * 256 + ((unsigned) BuildBuf [0]);
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printf ("%d %d %u\n", VersionBuf [1], VersionBuf [0], Build);
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}
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return 0;
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}
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