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102 lines
2.0 KiB
C
102 lines
2.0 KiB
C
/*
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* Copyright (c) 1999 David I. Bell
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* Permission is granted to use, distribute, or modify this source,
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* provided that this copyright notice remains intact.
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*
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* version - determine the version of calc
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*/
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#include <stdio.h>
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#include "calc.h"
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#define MAJOR_VER 2 /* major version */
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#define MINOR_VER 11 /* minor version */
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#define MAJOR_PATCH 0 /* patch level or 0 if no patch */
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#define MINOR_PATCH "9.4" /* test number or empty string if no patch */
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/*
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* calc version constants
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*/
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int calc_major_ver = MAJOR_VER;
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int calc_minor_ver = MINOR_VER;
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int calc_major_patch = MAJOR_PATCH;
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char *calc_minor_patch = MINOR_PATCH;
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/*
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* stored version
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*/
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static char *stored_version = NULL; /* version formed if != NULL */
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/*
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* version - return version string
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*
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* This function returns a malloced version string. This version
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* string does not contain the title, just:
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*
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* x.y.ztw
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* x.y.z
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* x.y
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*/
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char *
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version(void)
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{
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char verbuf[BUFSIZ+1]; /* form version string here */
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/*
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* return previously stored version if one exists
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*/
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if (stored_version) {
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return stored_version;
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}
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/*
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* form the version buffer
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*/
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if (sizeof(MINOR_PATCH) > 1) {
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sprintf(verbuf,
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"%d.%d.%dt%s", calc_major_ver, calc_minor_ver,
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calc_major_patch, calc_minor_patch);
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} else if (MAJOR_PATCH > 0) {
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sprintf(verbuf,
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"%d.%d.%d", calc_major_ver, calc_minor_ver, calc_major_patch);
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} else {
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sprintf(verbuf, "%d.%d", calc_major_ver, calc_minor_ver);
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}
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/*
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* save the versions string into a newly malloced buffer
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*/
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stored_version = (char *)malloc(strlen(verbuf)+1);
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if (stored_version == NULL) {
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fprintf(stderr, "%s: version formation value\n", program);
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exit(2);
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}
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strcpy(stored_version, verbuf);
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/*
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* return the newly malloced buffer
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*/
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return stored_version;
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}
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#if defined(CALC_VER)
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char *program; /* our name */
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/*
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* version - print the calc version
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*/
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/*ARGSUSED*/
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int
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main(int argc, char *argv[])
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{
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program = argv[0];
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printf("%s\n", version());
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return 0;
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}
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#endif /* CALC_VER */
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