| 1 | #include "system.h" |
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| 2 | #include "macs.hpp" |
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| 3 | #include <stdio.h> |
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| 4 | |
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| 5 | void unpackgl(char *fn, int pict_only) |
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| 6 | { |
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| 7 | unsigned short dir_length,sl,x,amread,bufsize; |
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| 8 | unsigned long offset,ret_ofs,length; |
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| 9 | char name[14],st[50],*buf; |
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| 10 | FILE *fp,*ot; |
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| 11 | CHECK(fn); |
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| 12 | fp=fopen(fn,"rb"); |
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| 13 | if (!fp) return ; |
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| 14 | |
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| 15 | if (fread(&dir_length,2,1,fp)!=1) return ; |
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| 16 | dir_length=int_to_local(dir_length)/17-1; |
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| 17 | ret_ofs=ftell(fp); |
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| 18 | while (dir_length--) |
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| 19 | { |
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| 20 | fseek(fp,ret_ofs,SEEK_SET); |
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| 21 | if (fread(&offset,4,1,fp)!=1) return ; |
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| 22 | offset=long_to_local(offset); |
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| 23 | if (fread(name,13,1,fp)!=1) return ; |
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| 24 | name[13]=0; |
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| 25 | sl=strlen(name); |
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| 26 | ret_ofs=ftell(fp); // save the current spot in the file so we can come back to it later |
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| 27 | if (toupper(name[sl-3])=='P' || toupper(name[sl-3])=='C' || !pict_only) |
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| 28 | { |
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| 29 | fseek(fp,offset,SEEK_SET); |
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| 30 | fread(&length,1,4,fp); |
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| 31 | length=long_to_local(length); |
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| 32 | if (length>1000000) |
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| 33 | exit(1); |
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| 34 | ot=fopen(name,"rb"); |
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| 35 | if (ot) |
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| 36 | { printf("File (%s) already exsist, overwrite (y/n)?\n",name); |
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| 37 | fgets(st,49,stdin); |
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| 38 | if (!(st[0]=='Y' || st[0]=='y')) |
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| 39 | length=0; |
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| 40 | fclose(ot); |
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| 41 | } |
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| 42 | if (length) |
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| 43 | ot=fopen(name,"wb"); |
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| 44 | if (!ot) return ; |
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| 45 | bufsize=0xf000; |
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| 46 | do { |
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| 47 | buf=(char *)jmalloc(bufsize,"unpack_gl::buffer"); |
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| 48 | if (!buf) bufsize-=100; |
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| 49 | } while (!buf); |
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| 50 | |
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| 51 | while (length) |
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| 52 | { |
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| 53 | if (length>bufsize) |
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| 54 | amread=bufsize; |
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| 55 | else amread=length; |
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| 56 | fread(buf,1,amread,fp); |
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| 57 | fwrite(buf,1,amread,ot); |
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| 58 | length-=amread; |
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| 59 | } |
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| 60 | jfree(buf); |
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| 61 | if (ot) fclose(ot); |
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| 62 | } |
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| 63 | } |
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| 64 | fclose(fp); |
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| 65 | } |
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| 66 | |
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| 67 | main(int argc, char **argv) |
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| 68 | { |
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| 69 | FILE *fp; |
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| 70 | char fn[100]; |
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| 71 | int t,i,x; |
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| 72 | if (argc<2) |
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| 73 | { printf("Usage : unpackgl filename[.gl] [-p]\n"); |
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| 74 | printf(" -p only unpacks picture files\n"); |
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| 75 | printf(" Unpackes the files contain within a GL file (GRASP format)\n"); |
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| 76 | printf(" Does not change the orginal file\n"); |
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| 77 | exit(0); |
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| 78 | } |
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| 79 | strcpy(fn,argv[1]); |
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| 80 | if (fn[strlen(fn)-3]!='.') |
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| 81 | strcat(fn,".gl"); |
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| 82 | if (*argv[2]=='-' && *(argv[2]+1)=='p') |
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| 83 | unpackgl(fn,1); |
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| 84 | else unpackgl(fn,0); |
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| 85 | return 0; |
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| 86 | } |
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| 87 | |
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