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/* psbook.c
* Copyright (C) Angus J. C. Duggan 1991-1995
* See file LICENSE for details.
*
* rearrange pages in conforming PS file for printing in signatures
*
* Usage:
* psbook [-q] [-s<signature>] [infile [outfile]]
*/
#include <unistd.h>
#include "psutil.h"
#include "pserror.h"
#include "patchlev.h"
char *program ;
int pages ;
int verbose ;
FILE *infile ;
FILE *outfile ;
char pagelabel[BUFSIZ] ;
int pageno ;
static void usage(void)
{
fprintf(stderr, "%s release %d patchlevel %d\n", program, RELEASE, PATCHLEVEL);
fprintf(stderr, "Copyright (C) Angus J. C. Duggan, 1991-1995. See file LICENSE for details.\n");
fprintf(stderr, "Usage: %s [-q] [-s<signature>] [infile [outfile]]\n",
program);
fprintf(stderr, " <signature> must be positive and divisible by 4\n");
fflush(stderr);
exit(1);
}
void main(int argc, char *argv[])
{
int signature = 0;
int currentpg, maxpage;
int opt;
verbose = 1;
program = *argv;
while((opt = getopt(argc, argv, "vqs:")) != EOF) {
switch(opt) {
case 's': /* signature size */
signature = atoi(optarg);
if (signature < 1 || signature % 4) usage();
break;
case 'q': /* quiet */
verbose = 0;
break;
case 'v': /* version */
default:
usage();
break;
}
}
infile = stdin;
outfile = stdout;
/* Be defensive */
if((argc - optind) < 0 || (argc - optind) > 2) usage();
if (optind != argc) {
/* User specified an input file */
if ((infile = fopen(argv[optind], OPEN_READ)) == NULL)
message(FATAL, "can't open input file %s\n", argv[optind]);
optind++;
}
if (optind != argc) {
/* User specified an output file */
if ((outfile = fopen(argv[optind], OPEN_WRITE)) == NULL)
message(FATAL, "can't open output file %s\n", argv[optind]);
optind++;
}
if(optind != argc) usage();
#if defined(MSDOS) || defined(WINNT)
if ( infile == stdin ) {
int fd = fileno(stdin) ;
if ( setmode(fd, O_BINARY) < 0 )
message(FATAL, "can't open input file %s\n", argv[4]);
}
if ( outfile == stdout ) {
int fd = fileno(stdout) ;
if ( setmode(fd, O_BINARY) < 0 )
message(FATAL, "can't reset stdout to binary mode\n");
}
#endif
if ((infile=seekable(infile))==NULL)
message(FATAL, "can't seek input\n");
scanpages();
if (!signature)
signature = maxpage = pages+(4-pages%4)%4;
else
maxpage = pages+(signature-pages%signature)%signature;
/* rearrange pages */
writeheader(maxpage);
writeprolog();
writesetup();
for (currentpg = 0; currentpg < maxpage; currentpg++) {
int actualpg = currentpg - currentpg%signature;
switch(currentpg%4) {
case 0:
case 3:
actualpg += signature-1-(currentpg%signature)/2;
break;
case 1:
case 2:
actualpg += (currentpg%signature)/2;
break;
}
if (actualpg < pages)
writepage(actualpg);
else
writeemptypage();
}
writetrailer();
exit(0);
}
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