initial population

1 files changed, 233 insertions, 0 deletions

diff --git a/usr.bin/paste/paste.c b/usr.bin/paste/paste.c
new file mode 100644
index 0000000..5698131
--- /dev/null
+++ b/usr.bin/paste/paste.c
@@ -0,0 +1,233 @@
+/*	$NetBSD: paste.c,v 1.16 2011/09/06 18:24:43 joerg Exp $	*/
+
+/*
+ * Copyright (c) 1989, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Adam S. Moskowitz of Menlo Consulting.
+ *
+ * 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. 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.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+__COPYRIGHT("@(#) Copyright (c) 1989, 1993\
+ The Regents of the University of California.  All rights reserved.");
+#endif /* not lint */
+
+#ifndef lint
+/*static char sccsid[] = "from: @(#)paste.c	8.1 (Berkeley) 6/6/93";*/
+__RCSID("$NetBSD: paste.c,v 1.16 2011/09/06 18:24:43 joerg Exp $");
+#endif /* not lint */
+
+#include <sys/types.h>
+#include <err.h>
+#include <errno.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+static void	parallel(int, char **);
+static void	sequential(char **);
+static int	tr(char *);
+__dead static void	usage(void);
+
+static char dflt_delim[] = "\t";
+static char *delim = dflt_delim;
+static int delimcnt = 1;
+
+int
+main(int argc, char **argv)
+{
+	int ch, seq;
+
+	seq = 0;
+	while ((ch = getopt(argc, argv, "d:s")) != -1) {
+		switch (ch) {
+		case 'd':
+			delim = strdup(optarg);
+			delimcnt = tr(delim);
+			break;
+		case 's':
+			seq = 1;
+			break;
+		case '?':
+		default:
+			usage();
+		}
+	}
+	argc -= optind;
+	argv += optind;
+
+	if (seq)
+		sequential(argv);
+	else
+		parallel(argc, argv);
+	exit(0);
+}
+
+static void
+parallel(int argc, char **argv)
+{
+	char ch, *dp, *line;
+	FILE **fpp, *fp;
+	size_t line_len;
+	int cnt, output;
+
+	fpp = calloc(argc, sizeof *fpp);
+	if (fpp == NULL)
+		err(1, "calloc");
+
+	for (cnt = 0; cnt < argc; cnt++) {
+		if (strcmp(argv[cnt], "-") == 0)
+			fpp[cnt] = stdin;
+		else if (!(fpp[cnt] = fopen(argv[cnt], "r")))
+			err(1, "%s", argv[cnt]);
+	}
+
+	for (;;) {
+		/* Start with the NUL at the end of 'delim' ... */
+		dp = delim + delimcnt;
+		output = 0;
+		for (cnt = 0; cnt < argc; cnt++) {
+			fp = fpp[cnt];
+			if (fp == NULL)
+				continue;
+			line = fgetln(fp, &line_len);
+			if (line == NULL) {
+				/* Assume EOF */
+				if (fp != stdin)
+					fclose(fp);
+				fpp[cnt] = NULL;
+				continue;
+			}
+			/* Output enough separators to catch up */
+			do {
+				ch = *dp++;
+				if (ch)
+					putchar(ch);
+				if (dp >= delim + delimcnt)
+					dp = delim;
+			} while (++output <= cnt);
+			/* Remove any trailing newline - check for last line */
+			if (line[line_len - 1] == '\n')
+				line_len--;
+			printf("%.*s", (int)line_len, line);
+		}
+
+		if (!output)
+			break;
+
+		/* Add separators to end of line */
+		while (++output <= cnt) {
+			ch = *dp++;
+			if (ch)
+				putchar(ch);
+			if (dp >= delim + delimcnt)
+				dp = delim;
+		}
+		putchar('\n');
+	}
+
+	free(fpp);
+}
+
+static void
+sequential(char **argv)
+{
+	FILE *fp;
+	int cnt;
+	char ch, *p, *dp;
+	char buf[_POSIX2_LINE_MAX + 1];
+
+	for (; (p = *argv) != NULL; ++argv) {
+		if (p[0] == '-' && !p[1])
+			fp = stdin;
+		else if (!(fp = fopen(p, "r"))) {
+			warn("%s", p);
+			continue;
+		}
+		if (fgets(buf, sizeof(buf), fp)) {
+			for (cnt = 0, dp = delim;;) {
+				if (!(p = strchr(buf, '\n')))
+					err(1, "%s: input line too long.",
+					    *argv);
+				*p = '\0';
+				(void)printf("%s", buf);
+				if (!fgets(buf, sizeof(buf), fp))
+					break;
+				if ((ch = *dp++) != 0)
+					putchar(ch);
+				if (++cnt == delimcnt) {
+					dp = delim;
+					cnt = 0;
+				}
+			}
+			putchar('\n');
+		}
+		if (fp != stdin)
+			(void)fclose(fp);
+	}
+}
+
+static int
+tr(char *arg)
+{
+	int cnt;
+	char ch, *p;
+
+	for (p = arg, cnt = 0; (ch = *p++); ++arg, ++cnt)
+		if (ch == '\\')
+			switch(ch = *p++) {
+			case 'n':
+				*arg = '\n';
+				break;
+			case 't':
+				*arg = '\t';
+				break;
+			case '0':
+				*arg = '\0';
+				break;
+			default:
+				*arg = ch;
+				break;
+		} else
+			*arg = ch;
+
+	if (!cnt)
+		errx(1, "no delimiters specified.");
+	*arg = '\0';
+	return(cnt);
+}
+
+static void
+usage(void)
+{
+	(void)fprintf(stderr, "paste: [-s] [-d delimiters] file ...\n");
+	exit(1);
+}