GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: usr.bin/rcs/ident.c Lines: 0 50 0.0 %
Date: 2017-11-07 Branches: 0 59 0.0 %

Line Branch Exec Source
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/*	$OpenBSD: ident.c,v 1.32 2016/08/26 09:02:54 guenther Exp $	*/
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/*
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 * Copyright (c) 2005 Xavier Santolaria <xsa@openbsd.org>
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. The name of the author may not be used to endorse or promote products
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 *    derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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 * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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 * EXEMPLARY, OR CONSEQUENTIAL  DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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#include <ctype.h>
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#include <err.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#include <unistd.h>
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#include "rcsprog.h"
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#define KEYDELIM	'$'	/* keywords delimiter */
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#define VALDELIM	':'	/* values delimiter */
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static int found = 0;
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static int flags = 0;
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static void	ident_file(const char *, FILE *);
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static void	ident_line(FILE *);
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int
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ident_main(int argc, char **argv)
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{
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	int i, ch, status;
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	FILE *fp;
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	status = 0;
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	while ((ch = rcs_getopt(argc, argv, "qV")) != -1) {
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		switch(ch) {
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		case 'q':
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			flags |= QUIET;
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			break;
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		case 'V':
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			printf("%s\n", rcs_version);
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			exit(0);
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		default:
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			(usage)();
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		}
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	}
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	argc -= rcs_optind;
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	argv += rcs_optind;
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	if (argc == 0)
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		ident_file(NULL, stdin);
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	else {
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		for (i = 0; i < argc; i++) {
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			if ((fp = fopen(argv[i], "r")) == NULL) {
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				warn("%s", argv[i]);
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				status = 1;
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				continue;
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			}
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			ident_file(argv[i], fp);
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			(void)fclose(fp);
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			if (i != argc - 1)
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				printf("\n");
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		}
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	}
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	return (status);
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}
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static void
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ident_file(const char *filename, FILE *fp)
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{
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	int c;
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	if (filename != NULL)
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		printf("%s:\n", filename);
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	else
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		filename = "standard input";
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	for (c = 0; c != EOF; c = getc(fp)) {
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		if (feof(fp) || ferror(fp))
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			break;
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		if (c == KEYDELIM)
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			ident_line(fp);
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	}
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	if (found == 0 && !(flags & QUIET))
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		fprintf(stderr, "ident warning: no id keywords in %s\n",
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		    filename);
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	found = 0;
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}
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static void
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ident_line(FILE *fp)
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{
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	int c;
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	BUF *bp;
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	size_t len;
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	bp = buf_alloc(512);
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	while ((c = getc(fp)) != VALDELIM) {
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		if (c == EOF)
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			goto out;
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		if (isalpha(c))
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			buf_putc(bp, c);
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		else
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			goto out;
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	}
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	buf_putc(bp, VALDELIM);
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	while ((c = getc(fp)) != KEYDELIM) {
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		if (c == EOF)
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			goto out;
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		if (c == '\n')
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			goto out;
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		buf_putc(bp, c);
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	}
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	len = buf_len(bp);
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	if (buf_getc(bp, len - 1) != ' ')
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		goto out;
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	/* append trailing KEYDELIM */
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	buf_putc(bp, c);
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	/* Append newline for printing. */
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	buf_putc(bp, '\n');
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	printf("     %c", KEYDELIM);
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	fflush(stdout);
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	buf_write_fd(bp, STDOUT_FILENO);
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	found++;
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out:
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	buf_free(bp);
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}
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__dead void
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ident_usage(void)
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{
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	fprintf(stderr, "usage: ident [-qV] [file ...]\n");
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	exit(1);
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}