Path: utzoo!attcan!uunet!blkcat!p0.f40.n109.z1.fidonet.org!Kai-Uwe.Rommel
From: Kai-Uwe.Rommel@p0.f40.n109.z1.fidonet.org (Kai-Uwe Rommel)
Newsgroups: comp.os.os2
Subject: (Part 6) compress (fast!) for OS/2
Message-ID: <724.25FAE701@blkcat.fidonet.org>
Date: 12 Mar 90 04:39:48 GMT
Sender: ufgate@blkcat.fidonet.org (newsout1.26)
Organization: FidoNet node 1:109/40.0 - Crewe 400 Nat'l Hub, Joe Keenan
Lines: 190


	*** Split Message, part #6, MsgSplit Version 2 (11-Mar-90) ***

X               chown(ofname, statbuf.st_uid, statbuf.st_gid);  /* Copy ownership */
X#endif
X#ifndef __TURBOC__
X               timep[0] = statbuf.st_atime;
X               timep[1] = statbuf.st_mtime;
X               utime(ofname, timep);
X#else
X               if ((fd = open(ofname, O_RDONLY)) >= 0) {
X                       if (getftime(fileno(stdin), &filetime) == 0)
X                               setftime(fd, &filetime);
X                       close(fd);
X               }
X#endif
X               fclose(stdin);
X               ss = signal(SIGINT, SIG_IGN);
X               okunlink = 0;
X                /* ^C here would leave both input, and output files around */
X                if ( !keep )
X                {
X                  if (unlink(ifname))     /* Remove input file */
X                          perror(ifname);
X                  signal(SIGINT, ss);
X                  if (verbose)
X                          fprintf(stderr, " -- replaced with %s", ofname);
X                }
X               return;         /* Successful return */
X       }
X
X       /* Unsuccessful return -- one of the tests failed */
X
X       if (unlink(ofname))
X               perror(ofname);
X}
X
Xvoid onintr(void)
X{
X       fclose(stdout);
X       if (okunlink)
X               unlink(ofname);
X       exit(1);
X}
X
Xvoid oops(void)     /* wild pointer -- assume bad input */
X{
X       if (do_decomp)
X               fprintf (stderr, "uncompress: %s is corrupt.\n", ifname);
X       fclose(stdout);
X       if (okunlink)
X               unlink(ofname);
X       exit(1);
X}
X
Xvoid prratio(num, den)
Xlong int num, den;
X{
X       register int q;                         /* Doesn't need to be long */
X
X       if (num > 214748L)                      /* 2147483647/10000 */
X               q = (int)(num / (den / 10000L));
X       else
X               q = (int)(10000L * num / den);  /* Long calculations, though */
X       if (q < 0) {
X               putc('-', stderr);
X               q = -q;
X       }
X       fprintf(stderr, "%d.%02d%%", q / 100, q % 100);
X}
X
Xvoid version()
X{
X        static shown = 0;
X
X        if ( shown == 0 )
X        {
X          fprintf(stderr, "\n%s\n", rcs_ident + 5);
X          fprintf(stderr, "BITS = %d\n", BITS);
X          shown = 1;
X        }
X}
X
X/*
X * Open the file "ofname" for binary output with possible check
X * for overwrite. If all goes well, return non-zero, else zero.
X */
Xint ofopen(filename)
Xchar *filename;
X{
X       static char IOoutbuf[8192];
X       struct stat statbuf;
X
X       if (filename && !*filename)
X               filename = 0;
X
X       /*
X        * Check for overwrite of existing file
X        */
X       if (filename && !force && stat(filename, &statbuf) == 0) {
X               char response[2];
X               response[0] = 'n';
X               fprintf(stderr, "%s already exists;", filename);
X               if (foreground) {
X                       fprintf(stderr, " do you wish to overwrite %s (y or n)? ", filename);
X                       fflush(stderr);
X                       read(2, response, 2);
X                       while (response[1] != '\n') {
X                               if (read(2, response+1, 1) < 0) { /* Ack! */
X                                       perror("stderr");
X                                       break;
X                               }
X                       }
X               }
X               if (response[0] != 'y') {
X                       fprintf(stderr, "\tnot overwritten\n");
X                       return (0);
X               }
X       }
X
X       okunlink = 1;
X       /*
X        * Open the output file.
X        */
X       if (filename && !freopen(filename, "wb", stdout)) {
X               perror(filename);
X               return (0);
X       }
X#ifdef O_BINARY
X       setmode(fileno(stdout), O_BINARY);
X#else
X#ifdef __ZTC__
X       /*
X        * I'm sure there must be a better way in Zortech C to change the
X        * mode of an already opened file, but I can't find it. It doesn't
X        * have a "setmode" call it seems.
X        */
X       stdout->_flag &= ~_IOTRAN;
X#endif
X#endif
X       setvbuf(stdout, IOoutbuf, _IOFBF, sizeof(IOoutbuf));
X       return (1);
X}
X
Xifopen(filename)
Xchar *filename;
X{
X       static char IOinbuf[8192];
X
X       if (filename && !freopen(filename, "rb", stdin)) {
X               perror(filename);
X               return (0);
X       }
X#ifdef O_BINARY
X       setmode(fileno(stdin), O_BINARY);
X#else
X#ifdef __ZTC__
X       stdin->_flag &= ~_IOTRAN;
X#endif
X#endif
X       setvbuf(stdin, IOinbuf, _IOFBF, sizeof(IOinbuf));
X       return (1);
X}
SHAR_EOF
chmod 0666 compress.c || echo "restore of compress.c fails"
echo "x - extracting compress.def (Text)"
sed 's/^X//' << 'SHAR_EOF' > compress.def &&
XNAME COMPRESS WINDOWCOMPAT
XDESCRIPTION 'compress 4.2 (very fast!) - for MS-DOS and OS/2'
SHAR_EOF
chmod 0666 compress.def || echo "restore of compress.def fails"
echo "x - extracting compress.cs (Text)"
sed 's/^X//' << 'SHAR_EOF' > compress.cs &&
X(-DOS2 -DMSC -DPROTO -Di8088 compress.c)
Xcompress.exe
Xcompress.def
Xsetargv.obj
X-AS -LB -S0x2000
SHAR_EOF
chmod 0666 compress.cs || echo "restore of compress.cs fails"
exit 0
;



--  

	Kai-Uwe Rommel at The Black Cat's Shack (Fidonet 1:109/401)
	Internet:  Kai-Uwe.Rommel@p0.f40.n109.z1.fidonet.org    
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