Vendor import NETBSD's sort(1). This will be a replacement for

our GNU sort, as discussed 6 months or more ago.

1 files changed, 332 insertions, 0 deletions

diff --git a/usr.bin/sort/sort.c b/usr.bin/sort/sort.c
new file mode 100644
index 0000000..57e2357
--- /dev/null
+++ b/usr.bin/sort/sort.c
@@ -0,0 +1,332 @@
+/*	$NetBSD: sort.c,v 1.26 2001/04/30 00:25:09 ross Exp $	*/
+
+/*-
+ * Copyright (c) 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Peter McIlroy.
+ *
+ * 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.
+ */
+
+/* Sort sorts a file using an optional user-defined key.
+ * Sort uses radix sort for internal sorting, and allows
+ * a choice of merge sort and radix sort for external sorting.
+ */
+
+#include "sort.h"
+#include "fsort.h"
+#include "pathnames.h"
+
+#ifndef lint
+__COPYRIGHT("@(#) Copyright (c) 1993\n\
+	The Regents of the University of California.  All rights reserved.\n");
+#endif /* not lint */
+
+#ifndef lint
+__RCSID("$NetBSD: sort.c,v 1.26 2001/04/30 00:25:09 ross Exp $");
+__SCCSID("@(#)sort.c	8.1 (Berkeley) 6/6/93");
+#endif /* not lint */
+
+#include <sys/types.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+
+#include <paths.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <locale.h>
+
+int REC_D = '\n';
+u_char d_mask[NBINS];		/* flags for rec_d, field_d, <blank> */
+/*
+ * weight tables.  Gweights is one of ascii, Rascii..
+ * modified to weight rec_d = 0 (or 255)
+ */
+u_char ascii[NBINS], Rascii[NBINS], RFtable[NBINS], Ftable[NBINS];
+int SINGL_FLD = 0, SEP_FLAG = 0, UNIQUE = 0;
+struct coldesc clist[(ND+1)*2];
+int ncols = 0;
+extern struct coldesc clist[(ND+1)*2];
+extern int ncols;
+
+/*
+ * Default to stable sort.
+ */
+int stable_sort = 1;
+
+char toutpath[MAXPATHLEN];
+
+const char *tmpdir;	/* where temporary files should be put */
+
+static void cleanup __P((void));
+static void onsignal __P((int));
+static void usage __P((const char *));
+static void many_files __P((void));
+
+int main __P((int argc, char **argv));
+
+int
+main(argc, argv)
+	int argc;
+	char *argv[];
+{
+	get_func_t get;
+	int ch, i, stdinflag = 0, tmp = 0;
+	char cflag = 0, mflag = 0;
+	char *outfile, *outpath = 0;
+	struct field fldtab[ND+2], *ftpos;
+	struct filelist filelist;
+	FILE *outfp = NULL;
+
+	setlocale(LC_ALL, "");
+
+	memset(fldtab, 0, (ND+2)*sizeof(struct field));
+	memset(d_mask, 0, NBINS);
+	d_mask[REC_D = '\n'] = REC_D_F;
+	SINGL_FLD = SEP_FLAG = 0;
+	d_mask['\t'] = d_mask[' '] = BLANK | FLD_D;
+	ftpos = fldtab;
+	many_files();
+
+	fixit(&argc, argv);
+	if (!(tmpdir = getenv("TMPDIR")))
+		tmpdir = _PATH_TMP;
+
+	while ((ch = getopt(argc, argv, "bcdfik:mHno:rR:sSt:T:ux")) != -1) {
+		switch (ch) {
+		case 'b':
+			fldtab->flags |= BI | BT;
+			break;
+		case 'c':
+			cflag = 1;
+			break;
+		case 'd': case 'f': case 'i': case 'n': case 'r':
+			tmp |= optval(ch, 0);
+			if ((tmp & R) && (tmp & F))
+				fldtab->weights = RFtable;
+			else if (tmp & F)
+				fldtab->weights = Ftable;
+			else if (tmp & R)
+				fldtab->weights = Rascii;
+			fldtab->flags |= tmp;
+			break;
+		case 'H':
+			PANIC = 0;
+			break;
+		case 'k':
+			setfield(optarg, ++ftpos, fldtab->flags);
+			break;
+		case 'm':
+			mflag = 1;
+			break;
+		case 'o':
+			outpath = optarg;
+			break;
+		case 's':
+			/* for GNU sort compatibility (this is our default) */
+			stable_sort = 1;
+			break;
+		case 'S':
+			stable_sort = 0;
+			break;
+		case 't':
+			if (SEP_FLAG)
+				usage("multiple field delimiters");
+			SEP_FLAG = 1;
+			d_mask[' '] &= ~FLD_D;
+			d_mask['\t'] &= ~FLD_D;
+			d_mask[(u_char)*optarg] |= FLD_D;
+			if (d_mask[(u_char)*optarg] & REC_D_F)
+				errx(2, "record/field delimiter clash");
+			break;
+		case 'R':
+			if (REC_D != '\n')
+				usage("multiple record delimiters");
+			if ('\n' == (REC_D = *optarg))
+				break;
+			d_mask['\n'] = d_mask[' '];
+			d_mask[REC_D] = REC_D_F;
+			break;
+		case 'T':
+			/* -T tmpdir */
+			tmpdir = optarg;
+			break;
+		case 'u':
+			UNIQUE = 1;
+			break;
+		case '?':
+		default:
+			usage(NULL);
+		}
+	}
+	if (cflag && argc > optind+1)
+		errx(2, "too many input files for -c option");
+	if (argc - 2 > optind && !strcmp(argv[argc-2], "-o")) {
+		outpath = argv[argc-1];
+		argc -= 2;
+	}
+	if (mflag && argc - optind > (MAXFCT - (16+1))*16)
+		errx(2, "too many input files for -m option");
+	for (i = optind; i < argc; i++) {
+		/* allow one occurrence of /dev/stdin */
+		if (!strcmp(argv[i], "-") || !strcmp(argv[i], _PATH_STDIN)) {
+			if (stdinflag)
+				warnx("ignoring extra \"%s\" in file list",
+				    argv[i]);
+			else
+				stdinflag = 1;
+
+			/* change to /dev/stdin if '-' */
+			if (argv[i][0] == '-')
+				argv[i] = _PATH_STDIN;
+
+		} else if ((ch = access(argv[i], R_OK)))
+			err(2, "%s", argv[i]);
+	}
+	if (!(fldtab->flags & (I|D|N) || fldtab[1].icol.num)) {
+		SINGL_FLD = 1;
+		fldtab[0].icol.num = 1;
+	} else {
+		if (!fldtab[1].icol.num) {
+			fldtab[0].flags &= ~(BI|BT);
+			setfield("1", ++ftpos, fldtab->flags);
+		}
+		fldreset(fldtab);
+		fldtab[0].flags &= ~F;
+	}
+	settables(fldtab[0].flags);
+	num_init();
+	fldtab->weights = gweights;
+	if (optind == argc) {
+		static const char * const names[] = { _PATH_STDIN, NULL };
+
+		filelist.names = names;
+		optind--;
+	} else
+		filelist.names = (const char * const *) &argv[optind];
+
+	if (SINGL_FLD)
+		get = makeline;
+	else
+		get = makekey;
+
+	if (cflag) {
+		order(&filelist, get, fldtab);
+		/* NOT REACHED */
+	}
+	if (!outpath) {
+		(void)snprintf(toutpath,
+		    sizeof(toutpath), "%sstdout", _PATH_DEV);
+		outfile = outpath = toutpath;
+		outfp = stdout;
+	} else if (!(ch = access(outpath, 0)) &&
+	    strncmp(_PATH_DEV, outpath, 5)) {
+		static const struct sigaction act =
+		    { onsignal, {{0}}, SA_RESTART | SA_RESETHAND };
+		static const int sigtable[] = {SIGHUP, SIGINT, SIGPIPE,
+		    SIGXCPU, SIGXFSZ, SIGVTALRM, SIGPROF, 0};
+		int outfd;
+		errno = 0;
+		if (access(outpath, W_OK))
+			err(2, "%s", outpath);
+		(void)snprintf(toutpath, sizeof(toutpath), "%sXXXXXX",
+		    outpath);
+		if ((outfd = mkstemp(toutpath)) == -1)
+			err(2, "Cannot create temporary file `%s'", toutpath);
+		if ((outfp = fdopen(outfd, "w")) == NULL)
+			err(2, "Cannot open temporary file `%s'", toutpath);
+		outfile = toutpath;
+		(void)atexit(cleanup);
+		for (i = 0; sigtable[i]; ++i)	/* always unlink toutpath */
+			sigaction(sigtable[i], &act, 0);
+	} else
+		outfile = outpath;
+
+	if (outfp == NULL && (outfp = fopen(outfile, "w")) == NULL)
+		err(2, "output file %s", outfile);
+
+	if (mflag) {
+		fmerge(-1, 0, &filelist, argc-optind, get, outfp, putline,
+			fldtab);
+	} else
+		fsort(-1, 0, 0, &filelist, argc-optind, outfp, fldtab);
+
+	if (outfile != outpath) {
+		if (access(outfile, 0))
+			err(2, "%s", outfile);
+		(void)unlink(outpath);
+		if (link(outfile, outpath))
+			err(2, "cannot link %s: output left in %s",
+			    outpath, outfile);
+		(void)unlink(outfile);
+	}
+	exit(0);
+}
+
+static void
+onsignal(sig)
+	int sig;
+{
+	cleanup();
+}
+
+static void
+cleanup()
+{
+	if (toutpath[0])
+		(void)unlink(toutpath);
+}
+
+static void
+usage(msg)
+	const char *msg;
+{
+	if (msg != NULL)
+		(void)fprintf(stderr, "sort: %s\n", msg);
+	(void)fprintf(stderr, "usage: [-o output] [-cmubdfinrsS] [-t char] ");
+	(void)fprintf(stderr, "[-R char] [-k keydef] ... [files]\n");
+	exit(2);
+}
+
+static void
+many_files()
+{
+#if 0
+	struct rlimit rlp_many_files[1];
+
+	if (getrlimit(RLIMIT_NOFILE, rlp_many_files) == 0) {
+		rlp_many_files->rlim_cur = rlp_many_files->rlim_max;
+		setrlimit(RLIMIT_NOFILE, rlp_many_files);
+	}
+#endif
+}