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Home > ソフトウェア > 恋するHEXと畢竟のBIN > hex2bin2hex100.zip > Src > hex2bin.cpp

//hex2bin.cpp Coded by x@rgs
#include<stdio.h>
#include<ctype.h>

//出力ファイル名用バッファ(省略された時のみ)
const int iFileNmaeBuffer=1024;

//fgets()用バッファ
const int iLineBuffer=1024;

long hex2dec(const int str){
    long lResult=0;
    char cChar=0;

    if('0'<=str&&str<='9'){
        lResult=str-'0';
    }else if('a'<=(cChar=tolower(str))&&cChar<='f'){
        lResult=cChar-'a'+10;
    }else{
        return 0;
    }

    return lResult;
}

int strlen(const char *str){
    int i=0;
    while(*str++)i++;
    return i;
}

int main(int argc,char *argv[]){
    FILE* fpIn;
    FILE* fpOut;

    if(argc==2||argc==3){
        if((fpIn=fopen(argv[1],"r"))!=NULL){
            char szOut[iFileNmaeBuffer]={0};
            char* pszOut;
            if(argc==2){
                //出力ファイル名が省略された時は～.hexとして出力
                int i=strlen(argv[1]);
                if(i+1>iFileNmaeBuffer){
                    //バッファが足りない時はa.hexとして出力
                    szOut[0]='a';
                    i=1;
                }else{
                    pszOut=szOut;
                    while((*(pszOut)++=*(argv[1])++));
                }
                szOut[i]='.';
                szOut[++i]='b';
                szOut[++i]='i';
                szOut[++i]='n';
            }

            if((fpOut=fopen((argc==2)?szOut:argv[2],"wb"))!=NULL){
                int i=0;
                char szLine[iLineBuffer];
                bool bInvalid=false;

                while(fgets(szLine,iLineBuffer,fpIn)!=NULL){
                    i=0;
                    while(szLine[i]!='\0'){
                        //コメント関連の文字だった場合、次の行へ
                        if(szLine[i]=='#'||szLine[i]=='/'||szLine[i]==';'){
                            break;
                        }else if(isspace(szLine[i])){
                            //スペースやタブだった場合、次の文字へ
                            i++;
                        }else if(isxdigit(szLine[i])){
                            if(!isxdigit(szLine[i+1])){
                                //次の文字も16進数でなければ、無効なファイルとみなす
                                bInvalid=true;
                                break;
                            }
                            //変換
                            int iTmp=hex2dec(szLine[i])*16;
                            fputc(iTmp+hex2dec(szLine[++i]),fpOut);
                            i++;
                        }else{
                            bInvalid=true;
                            break;
                        }
                    }
                    if(bInvalid)break;
                }
                fclose(fpOut);
                if(bInvalid){
                    fprintf(stderr,"Invalid file\n");
                    remove((argc==2)?szOut:argv[2]);
                }
            }else{
                fprintf(stderr,"Cannot open %s\n",(argc==2)?szOut:argv[2]);
            }
            fclose(fpIn);
        }else{
            fprintf(stderr,"Cannot open %s\n",argv[1]);
        }
    }else{
        fprintf(stderr,"Invalid argument\n");
    }
    return 0;
}

Home > ソフトウェア > 恋するHEXと畢竟のBIN > hex2bin2hex100.zip > Src > hex2bin.cpp