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/* $OpenBSD: special.c,v 1.7 2011/01/19 13:01:25 okan Exp $ */ |
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/* $NetBSD: special.c,v 1.2 1995/09/08 03:23:00 tls Exp $ */ |
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/*- |
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* Copyright (c) 1991, 1993, 1994 |
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* The Regents of the University of California. 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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* 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. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. Neither the name of the University nor the names of its contributors |
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* may be used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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*/ |
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#include <sys/types.h> |
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#include <err.h> |
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#include <stdlib.h> |
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#include <stdio.h> |
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#include <string.h> |
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#include "extern.h" |
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void |
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c_special(int fd1, char *file1, off_t skip1, int fd2, char *file2, off_t skip2) |
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{ |
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int ch1, ch2; |
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off_t byte, line; |
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FILE *fp1, *fp2; |
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int dfound; |
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✗✓ |
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if ((fp1 = fdopen(fd1, "r")) == NULL) |
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err(ERR_EXIT, "%s", file1); |
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✗✓ |
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if ((fp2 = fdopen(fd2, "r")) == NULL) |
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err(ERR_EXIT, "%s", file2); |
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dfound = 0; |
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✗✓ |
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while (skip1--) |
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if (getc(fp1) == EOF) |
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goto eof; |
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✗✓ |
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while (skip2--) |
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if (getc(fp2) == EOF) |
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goto eof; |
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for (byte = line = 1;; ++byte) { |
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✓✗✓✓
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ch1 = getc(fp1); |
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✓✗✓✓
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ch2 = getc(fp2); |
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✓✓ |
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if (ch1 == EOF || ch2 == EOF) |
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break; |
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✗✓ |
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if (ch1 != ch2) { |
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if (lflag) { |
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dfound = 1; |
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(void)printf("%6lld %3o %3o\n", (long long)byte, |
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ch1, ch2); |
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} else |
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diffmsg(file1, file2, byte, line); |
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/* NOTREACHED */ |
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} |
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✓✓ |
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if (ch1 == '\n') |
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++line; |
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} |
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✓✗✗✓
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eof: if (ferror(fp1)) |
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err(ERR_EXIT, "%s", file1); |
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✓✗✗✓
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if (ferror(fp2)) |
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err(ERR_EXIT, "%s", file2); |
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✓✗✓✗
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if (feof(fp1)) { |
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✓✗✗✓
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if (!feof(fp2)) |
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eofmsg(file1); |
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} else |
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if (feof(fp2)) |
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eofmsg(file2); |
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✗✓ |
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if (dfound) |
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exit(DIFF_EXIT); |
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} |