From 5fd83771641d15c418f747bd343ba6738d3875f7 Mon Sep 17 00:00:00 2001 From: Cameron Katri Date: Sun, 9 May 2021 14:20:58 -0400 Subject: Import macOS userland adv_cmds-176 basic_cmds-55 bootstrap_cmds-116.100.1 developer_cmds-66 diskdev_cmds-667.40.1 doc_cmds-53.60.1 file_cmds-321.40.3 mail_cmds-35 misc_cmds-34 network_cmds-606.40.1 patch_cmds-17 remote_cmds-63 shell_cmds-216.60.1 system_cmds-880.60.2 text_cmds-106 --- text_cmds/rev/rev.1 | 49 ++++++++++++++++++++++ text_cmds/rev/rev.c | 118 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 167 insertions(+) create mode 100644 text_cmds/rev/rev.1 create mode 100644 text_cmds/rev/rev.c (limited to 'text_cmds/rev') diff --git a/text_cmds/rev/rev.1 b/text_cmds/rev/rev.1 new file mode 100644 index 0000000..a1e9eb5 --- /dev/null +++ b/text_cmds/rev/rev.1 @@ -0,0 +1,49 @@ +.\" Copyright (c) 1985, 1992, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)rev.1 8.1 (Berkeley) 6/9/93 +.\" $FreeBSD: src/usr.bin/rev/rev.1,v 1.6 2001/02/13 09:55:09 ru Exp $ +.\" +.Dd June 9, 1993 +.Dt REV 1 +.Os +.Sh NAME +.Nm rev +.Nd reverse lines of a file +.Sh SYNOPSIS +.Nm +.Op Ar +.Sh DESCRIPTION +The +.Nm +utility copies the specified files to the standard output, reversing the +order of characters in every line. +If no files are specified, the standard input is read. diff --git a/text_cmds/rev/rev.c b/text_cmds/rev/rev.c new file mode 100644 index 0000000..478f15f --- /dev/null +++ b/text_cmds/rev/rev.c @@ -0,0 +1,118 @@ +/*- + * Copyright (c) 1987, 1992, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef lint +static const char copyright[] = +"@(#) Copyright (c) 1987, 1992, 1993\n\ + The Regents of the University of California. All rights reserved.\n"; +#endif /* not lint */ + +#if 0 +#ifndef lint +static char sccsid[] = "@(#)rev.c 8.3 (Berkeley) 5/4/95"; +#endif /* not lint */ +#endif + +#include +__FBSDID("$FreeBSD: src/usr.bin/rev/rev.c,v 1.12 2009/12/13 03:14:06 delphij Exp $"); + +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +static void usage(void); + +int +main(int argc, char *argv[]) +{ + const char *filename; + wchar_t *p, *t; + FILE *fp; + size_t len; + int ch, rval; + + setlocale(LC_ALL, ""); + + while ((ch = getopt(argc, argv, "")) != -1) + switch(ch) { + case '?': + default: + usage(); + } + + argc -= optind; + argv += optind; + + fp = stdin; + filename = "stdin"; + rval = 0; + do { + if (*argv) { + if ((fp = fopen(*argv, "r")) == NULL) { + warn("%s", *argv); + rval = 1; + ++argv; + continue; + } + filename = *argv++; + } + while ((p = fgetwln(fp, &len)) != NULL) { + if (p[len - 1] == '\n') + --len; + for (t = p + len - 1; t >= p; --t) + putwchar(*t); + putwchar('\n'); + } + if (ferror(fp)) { + warn("%s", filename); + clearerr(fp); + rval = 1; + } + (void)fclose(fp); + } while(*argv); + exit(rval); +} + +void +usage(void) +{ + (void)fprintf(stderr, "usage: rev [file ...]\n"); + exit(1); +} -- cgit v1.2.3-56-ge451