versionUpdate.cpp

Go to the documentation of this file.

/*
**  Command & Conquer Generals Zero Hour(tm)
**  Copyright 2025 Electronic Arts Inc.
**
**  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 3 of the License, or
**  (at your option) any later version.
**
**  This program is distributed in the hope that it 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 for more details.
**
**  You should have received a copy of the GNU General Public License
**  along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
 
// FILE: versionUpdate.cpp //////////////////////////////////////////////////////
// Generals version number class updater
// Author: Matthew D. Campbell, November 2001
 
// SYSTEM INCLUDES ////////////////////////////////////////////////////////////
#define WIN32_LEAN_AND_MEAN  // only bare bones windows stuff wanted
#include <windows.h>
#include <lmcons.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
 
// Local defines
#define VERSION_BUILDNUM "VERSION_LOCALBUILDNUM"
#define VERSION_STRING "LOCAL_BUILD_STRING"
#define VERSION_BUILDUSER "VERSION_BUILDUSER"
#define VERSION_BUILDLOC "VERSION_BUILDLOC"
#define FORMAT "#define " VERSION_STRING " \"%d\"\n"
#define COMMENTS "// Do not modify this file by hand. Auto-created and\n// Updated by versionUpdate.\n"
#define NUMFMT "#define %s %d\n"
#define STRFMT "#define %s \"%s\"\n"
 
static void writeVersion(char *file, int build)
{
    FILE *filePtr = fopen(file, "w");
    // Clobber the file.  Hey, this is a simple program.
    if (file)
    {
        if (filePtr)
        {
            unsigned long bufSize = UNLEN + 1;
            char userName[UNLEN + 1];
            if (!GetUserName(userName, &bufSize))
            {
                strcpy(userName, "unknown");
            }
 
            bufSize = MAX_COMPUTERNAME_LENGTH + 1;
            char computerName[MAX_COMPUTERNAME_LENGTH + 1];
            if (!GetComputerName(computerName, &bufSize))
            {
                strcpy(computerName, "unknown");
            }
 
            printf("Build is by %s at %s\n", userName, computerName);
 
            fprintf(filePtr, COMMENTS);
            fprintf(filePtr, FORMAT, build);
            fprintf(filePtr, NUMFMT, VERSION_BUILDNUM, build);
            fprintf(filePtr, STRFMT, VERSION_BUILDUSER, userName);
            fprintf(filePtr, STRFMT, VERSION_BUILDLOC, computerName);
            fclose(filePtr);
        }
        else
        {
            printf("Cannot write file\n");
        }
    }
    else
    {
        printf("No file to write\n");
    }
}
 
static void usage(char *progname)
{
    if (progname)
    {
        printf ("Usage: %s versionfile.h", progname);
    }
}
 
 
// strtrim ====================================================================
//=============================================================================
static char* strtrim(char* buffer)
{
    if (buffer != NULL) {
        //  Strip leading white space from the string.
        char * source = buffer;
        while ((*source != 0) && ((unsigned char)*source <= 32))
        {
            source++;
        }
 
        if (source != buffer)
        {
            strcpy(buffer, source);
        }
 
        //  Clip trailing white space from the string.
        for (int index = strlen(buffer)-1; index >= 0; index--)
        {
            if ((*source != 0) && ((unsigned char)buffer[index] <= 32))
            {
                buffer[index] = '\0';
            }
            else
            {
                break;
            }
        }
    }
 
    return buffer;
}
 
int APIENTRY WinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPSTR     lpCmdLine,
                     int       nCmdShow)
{
    /*
    ** Convert WinMain arguments to simple main argc and argv
    */
    int argc = 1;
    char * argv[20];
    argv[0] = NULL;
 
    char * token = strtok(lpCmdLine, " ");
    while (argc < 20 && token != NULL)
    {
        argv[argc++] = strtrim(token);
        token = strtok(NULL, " ");
    }
 
    int build = 0;
 
    if (argc != 2)
    {
        usage(argv[0]);
    }
    else
    {
        char *target = argv[argc-1];
        FILE *filePtr;
 
        if (target) {
            filePtr = fopen(target, "r+");
            if (filePtr)
            {
                char buffer[256];
                char *stringPtr = NULL;
 
                while (!feof(filePtr))
                {
                    fread(buffer, 256, 1, filePtr);
                    if ((stringPtr = strstr(buffer, VERSION_STRING)) != NULL) 
                    {
                        char *ptr;
 
                        // Looking for '#define VERSION "x.y.z"'
                        ptr = strtok(stringPtr, " ");   // The VERSION
                        ptr = strtok(NULL, "\n");           // The remainder
                        
                        if (*ptr == '\"')
                        {
                            ptr++; // Inc past the first "
                            build = atoi(ptr);
                            fclose(filePtr);
 
                            build++;
 
                            printf ("Local build is %d\n", build);
                            writeVersion(target, build);
                            break;
                        } else
                        {
                            printf ("Local build is 0. Oops, didn't find a string of the format: '#define VERSION \"x.y.z\"'");
                        }
                    } // End if if (strstr
                } // End of while
            } // End of if filePtr
            else
            {
                // Didn't find the file, write a new one
                printf ("Local build is %d\n", build);
                writeVersion(target, build);
            }
        }
    }
 
    return 0;
}