Function fsh_main

tools/fshtool.c:1796–1952

}

int fsh_main(int argc,char **argv)
{
    FILE *f;
    char *outfn,*p;
    unsigned char *tmpbuf;
    int i,j,choice;

    printf("===========================================================================\n");
    printf("FSHTOOL version 1.22 - (c) Denis Auroux 2002 - auroux@math.polytechnique.fr\n");
    printf("===========================================================================\n");
    sanity_check();
    if (argc==1) {
        usage();
        abandon_ship();
    }

    /* try to open the given file and determine its type from the first few bytes */
    f=fopen(argv[1],"rb");
    if (f==NULL) {
        printf("Input file %s not found.\n",argv[1]);
        abandon_ship();
    }

    fseek(f,0,SEEK_END);
    inlen=ftell(f);
    rewind(f);
    if (inlen<4) { printf("Truncated file ?\n"); abandon_ship(); }
    inbuf=malloc(inlen+2048); /* safety margin */
    if (inbuf==NULL) { printf("Insufficient memory.\n"); abandon_ship(); }
    if (fread(inbuf,1,inlen,f)!=(size_t)inlen)
    { printf("File read error.\n"); abandon_ship(); }
    fclose(f);

    iscompr=0;
    if (((inbuf[0]&0xfe)==0x10)&&(inbuf[1]==0xfb)) {
        /* this is a compressed QFS file */
        iscompr=1;
        printf("Uncompressing QFS file (%d bytes) to memory...\n",inlen);
        tmpbuf=uncompress_data(inbuf,&inlen);
        free(inbuf);
        inbuf=tmpbuf;
    }

    if (!strncmp(inbuf,"SHPI",4)) {
        /* this is a FSH file */
        printf("FSH data (%d bytes).\n",inlen);

        /* find a target directory name */
        if (argv[2]!=NULL)
            outfn=strdup(argv[2]);
        else {
            outfn=strdup(argv[1]);
            i=strlen(outfn)-4;
            if (outfn[i]!='.') {
                printf("Don't know how to derive a directory name from '%s'\n",outfn);
                printf("Please specify a second command-line argument.\n");
                abandon_ship();
            }