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- /*
- * Copyright (c) 1989 The Regents of the University of California.
- * All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Ken Arnold.
- *
- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by the University of California, Berkeley. The name of the
- * University may not be used to endorse or promote products derived
- * from this software without specific prior written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- */
-
- #ifndef lint
- char copyright[] =
- "@(#) Copyright (c) 1989 The Regents of the University of California.\n\
- All rights reserved.\n";
- #endif /* not lint */
-
- #ifndef lint
- static char sccsid[] = "@(#)unstr.c 5.6 (Berkeley) 12/15/89";
- #endif /* not lint */
-
- /*
- * This program un-does what "strfile" makes, thereby obtaining the
- * original file again. This can be invoked with the name of the output
- * file, the input file, or both. If invoked with only a single argument
- * ending in ".dat", it is pressumed to be the input file and the output
- * file will be the same stripped of the ".dat". If the single argument
- * doesn't end in ".dat", then it is presumed to be the output file, and
- * the input file is that name prepended by a ".dat". If both are given
- * they are treated literally as the input and output files.
- *
- * Ken Arnold Aug 13, 1978
- */
-
- #ifndef NeXT
- # include <machine/endian.h>
- #endif
- # include <sys/param.h>
- # include "strfile.h"
- # include <stdio.h>
- # include <ctype.h>
-
- # ifndef MAXPATHLEN
- # define MAXPATHLEN 1024
- # endif /* MAXPATHLEN */
-
- char *Infile, /* name of input file */
- Datafile[MAXPATHLEN], /* name of data file */
- Delimch; /* delimiter character */
-
- FILE *Inf, *Dataf;
-
- char *strcat(), *strcpy();
-
- /* ARGSUSED */
- main(ac, av)
- int ac;
- char **av;
- {
- static STRFILE tbl; /* description table */
-
- getargs(av);
- if ((Inf = fopen(Infile, "r")) == NULL) {
- perror(Infile);
- exit(1);
- }
- if ((Dataf = fopen(Datafile, "r")) == NULL) {
- perror(Datafile);
- exit(1);
- }
- (void) fread((char *) &tbl, sizeof tbl, 1, Dataf);
- tbl.str_version = ntohl(tbl.str_version);
- tbl.str_numstr = ntohl(tbl.str_numstr);
- tbl.str_longlen = ntohl(tbl.str_longlen);
- tbl.str_shortlen = ntohl(tbl.str_shortlen);
- tbl.str_flags = ntohl(tbl.str_flags);
- if (!(tbl.str_flags & (STR_ORDERED | STR_RANDOM))) {
- fprintf(stderr, "nothing to do -- table in file order\n");
- exit(1);
- }
- Delimch = tbl.str_delim;
- order_unstr(&tbl);
- (void) fclose(Inf);
- (void) fclose(Dataf);
- exit(0);
- }
-
- getargs(av)
- register char *av[];
- {
- if (!*++av) {
- (void) fprintf(stderr, "usage: unstr datafile\n");
- exit(1);
- }
- Infile = *av;
- (void) strcpy(Datafile, Infile);
- (void) strcat(Datafile, ".dat");
- }
-
- order_unstr(tbl)
- register STRFILE *tbl;
- {
- register int i;
- register char *sp;
- auto off_t pos;
- char buf[BUFSIZ];
-
- for (i = 0; i < tbl->str_numstr; i++) {
- (void) fread((char *) &pos, 1, sizeof pos, Dataf);
- (void) fseek(Inf, ntohl(pos), 0);
- if (i != 0)
- (void) printf("%c\n", Delimch);
- for (;;) {
- sp = fgets(buf, sizeof buf, Inf);
- if (sp == NULL || STR_ENDSTRING(sp, *tbl))
- break;
- else
- fputs(sp, stdout);
- }
- }
- }
-