1 files changed, 437 insertions, 0 deletions
diff --git a/bin/pax/gen_subs.c b/bin/pax/gen_subs.c
new file mode 100644
index 0000000..9228c69
--- /dev/null
+++ b/bin/pax/gen_subs.c
@@ -0,0 +1,437 @@
+/*	$NetBSD: gen_subs.c,v 1.37 2018/11/30 00:53:11 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992 Keith Muller.
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Keith Muller of the University of California, San Diego.
+ *
+ * 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.
+ */
+
+#if HAVE_NBTOOL_CONFIG_H
+#include "nbtool_config.h"
+#endif
+
+#include <sys/cdefs.h>
+#if !defined(lint)
+#if 0
+static char sccsid[] = "@(#)gen_subs.c	8.1 (Berkeley) 5/31/93";
+#else
+__RCSID("$NetBSD: gen_subs.c,v 1.37 2018/11/30 00:53:11 christos Exp $");
+#endif
+#endif /* not lint */
+
+#include <sys/types.h>
+#include <sys/time.h>
+#include <sys/stat.h>
+#include <sys/param.h>
+
+#include <ctype.h>
+#include <grp.h>
+#include <pwd.h>
+#include <vis.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <tzfile.h>
+#include <unistd.h>
+
+#include "pax.h"
+#include "extern.h"
+
+/*
+ * a collection of general purpose subroutines used by pax
+ */
+
+/*
+ * constants used by ls_list() when printing out archive members
+ */
+#define MODELEN 20
+#define DATELEN 64
+#define SIXMONTHS	 ((DAYSPERNYEAR / 2) * SECSPERDAY)
+#define CURFRMT		"%b %e %H:%M"
+#define OLDFRMT		"%b %e  %Y"
+#ifndef UT_NAMESIZE
+#define UT_NAMESIZE	8
+#endif
+#define UT_GRPSIZE	6
+
+/*
+ * convert time to string
+ */
+static void
+formattime(char *buf, size_t buflen, time_t when)
+{
+	int error;
+	struct tm tm;
+	(void)localtime_r(&when, &tm);
+
+	if (when + SIXMONTHS <= time(NULL))
+		error = strftime(buf, buflen, OLDFRMT, &tm);
+	else
+		error = strftime(buf, buflen, CURFRMT, &tm);
+
+	if (error == 0)
+		buf[0] = '\0';
+}
+
+/*
+ * ls_list()
+ *	list the members of an archive in ls format
+ */
+
+void
+ls_list(ARCHD *arcn, time_t now, FILE *fp)
+{
+	struct stat *sbp;
+	char f_mode[MODELEN];
+	char f_date[DATELEN];
+	const char *user, *group;
+
+	/*
+	 * if not verbose, just print the file name
+	 */
+	if (!vflag) {
+		(void)fprintf(fp, "%s\n", arcn->name);
+		(void)fflush(fp);
+		return;
+	}
+
+	/*
+	 * user wants long mode
+	 */
+	sbp = &(arcn->sb);
+	strmode(sbp->st_mode, f_mode);
+
+	/*
+	 * time format based on age compared to the time pax was started.
+	 */
+	formattime(f_date, sizeof(f_date), arcn->sb.st_mtime);
+	/*
+	 * print file mode, link count, uid, gid and time
+	 */
+	user = user_from_uid(sbp->st_uid, 0);
+	group = group_from_gid(sbp->st_gid, 0);
+	(void)fprintf(fp, "%s%2lu %-*s %-*s ", f_mode,
+	    (unsigned long)sbp->st_nlink,
+	    UT_NAMESIZE, user ? user : "", UT_GRPSIZE, group ? group : "");
+
+	/*
+	 * print device id's for devices, or sizes for other nodes
+	 */
+	if ((arcn->type == PAX_CHR) || (arcn->type == PAX_BLK))
+		(void)fprintf(fp, "%4lu,%4lu ", (long) MAJOR(sbp->st_rdev),
+		    (long) MINOR(sbp->st_rdev));
+	else {
+		(void)fprintf(fp, OFFT_FP("9") " ", (OFFT_T)sbp->st_size);
+	}
+
+	/*
+	 * print name and link info for hard and soft links
+	 */
+	(void)fprintf(fp, "%s %s", f_date, arcn->name);
+	if ((arcn->type == PAX_HLK) || (arcn->type == PAX_HRG))
+		(void)fprintf(fp, " == %s\n", arcn->ln_name);
+	else if (arcn->type == PAX_SLK)
+		(void)fprintf(fp, " -> %s\n", arcn->ln_name);
+	else
+		(void)fputc('\n', fp);
+	(void)fflush(fp);
+}
+
+/*
+ * tty_ls()
+ *	print a short summary of file to tty.
+ */
+
+void
+ls_tty(ARCHD *arcn)
+{
+	char f_date[DATELEN];
+	char f_mode[MODELEN];
+
+	formattime(f_date, sizeof(f_date), arcn->sb.st_mtime);
+	strmode(arcn->sb.st_mode, f_mode);
+	tty_prnt("%s%s %s\n", f_mode, f_date, arcn->name);
+	return;
+}
+
+void
+safe_print(const char *str, FILE *fp)
+{
+	char visbuf[5];
+	const char *cp;
+
+	/*
+	 * if printing to a tty, use vis(3) to print special characters.
+	 */
+	if (isatty(fileno(fp))) {
+		for (cp = str; *cp; cp++) {
+			(void)vis(visbuf, cp[0], VIS_CSTYLE, cp[1]);
+			(void)fputs(visbuf, fp);
+		}
+	} else {
+		(void)fputs(str, fp);
+	}
+}
+
+/*
+ * asc_u32()
+ *	convert hex/octal character string into a uint32_t. We do not have to
+ *	check for overflow! (the headers in all supported formats are not large
+ *	enough to create an overflow).
+ *	NOTE: strings passed to us are NOT TERMINATED.
+ * Return:
+ *	uint32_t value
+ */
+
+uint32_t
+asc_u32(char *str, int len, int base)
+{
+	char *stop;
+	uint32_t tval = 0;
+
+	stop = str + len;
+
+	/*
+	 * skip over leading blanks and zeros
+	 */
+	while ((str < stop) && ((*str == ' ') || (*str == '0')))
+		++str;
+
+	/*
+	 * for each valid digit, shift running value (tval) over to next digit
+	 * and add next digit
+	 */
+	if (base == HEX) {
+		while (str < stop) {
+			if ((*str >= '0') && (*str <= '9'))
+				tval = (tval << 4) + (*str++ - '0');
+			else if ((*str >= 'A') && (*str <= 'F'))
+				tval = (tval << 4) + 10 + (*str++ - 'A');
+			else if ((*str >= 'a') && (*str <= 'f'))
+				tval = (tval << 4) + 10 + (*str++ - 'a');
+			else
+				break;
+		}
+	} else {
+		while ((str < stop) && (*str >= '0') && (*str <= '7'))
+			tval = (tval << 3) + (*str++ - '0');
+	}
+	return tval;
+}
+
+/*
+ * u32_asc()
+ *	convert an uintmax_t into an hex/oct ascii string. pads with LEADING
+ *	ascii 0's to fill string completely
+ *	NOTE: the string created is NOT TERMINATED.
+ */
+
+int
+u32_asc(uintmax_t val, char *str, int len, int base)
+{
+	char *pt;
+	uint32_t digit;
+	uintmax_t p;
+
+	p = val & TOP_HALF;
+	if (p && p != TOP_HALF)
+		return -1;
+
+	val &= BOTTOM_HALF;
+
+	/*
+	 * WARNING str is not '\0' terminated by this routine
+	 */
+	pt = str + len - 1;
+
+	/*
+	 * do a tailwise conversion (start at right most end of string to place
+	 * least significant digit). Keep shifting until conversion value goes
+	 * to zero (all digits were converted)
+	 */
+	if (base == HEX) {
+		while (pt >= str) {
+			if ((digit = (val & 0xf)) < 10)
+				*pt-- = '0' + (char)digit;
+			else
+				*pt-- = 'a' + (char)(digit - 10);
+			if ((val = (val >> 4)) == (u_long)0)
+				break;
+		}
+	} else {
+		while (pt >= str) {
+			*pt-- = '0' + (char)(val & 0x7);
+			if ((val = (val >> 3)) == 0)
+				break;
+		}
+	}
+
+	/*
+	 * pad with leading ascii ZEROS. We return -1 if we ran out of space.
+	 */
+	while (pt >= str)
+		*pt-- = '0';
+	if (val != 0)
+		return -1;
+	return 0;
+}
+
+/*
+ * asc_umax()
+ *	convert hex/octal/base-256 value into a uintmax.
+ *	NOTE: strings passed to us are NOT TERMINATED.
+ * Return:
+ *	uintmax_t value; UINTMAX_MAX for overflow/negative
+ */
+
+uintmax_t
+asc_umax(char *str, int len, int base)
+{
+	char *stop;
+	uintmax_t tval = 0;
+
+	stop = str + len;
+
+	/*
+	 * if the highest bit of first byte is set, it's base-256 encoded
+	 * (base-256 is basically (n-1)-bit big endian signed
+	 */
+	if (str < stop && (*str & 0x80)) {
+		/*
+		 * uintmax_t can't be negative, so fail on negative numbers
+		 */
+		if (*str & 0x40)
+			return UINTMAX_MAX;
+
+		tval = *str++ & 0x3f;
+		while (str < stop) {
+			/*
+			 * check for overflow
+			 */
+			if (tval > (UINTMAX_MAX/256))
+				return UINTMAX_MAX;
+			tval = (tval << 8) | ((*str++) & 0xFF);
+		}
+
+		return tval;
+	}
+
+	/*
+	 * skip over leading blanks and zeros
+	 */
+	while ((str < stop) && ((*str == ' ') || (*str == '0')))
+		++str;
+
+	/*
+	 * for each valid digit, shift running value (tval) over to next digit
+	 * and add next digit
+	 */
+	if (base == HEX) {
+		while (str < stop) {
+			if ((*str >= '0') && (*str <= '9'))
+				tval = (tval << 4) + (*str++ - '0');
+			else if ((*str >= 'A') && (*str <= 'F'))
+				tval = (tval << 4) + 10 + (*str++ - 'A');
+			else if ((*str >= 'a') && (*str <= 'f'))
+				tval = (tval << 4) + 10 + (*str++ - 'a');
+			else
+				break;
+		}
+	} else {
+		while ((str < stop) && (*str >= '0') && (*str <= '7'))
+			tval = (tval << 3) + (*str++ - '0');
+	}
+	return tval;
+}
+
+/*
+ * umax_asc()
+ *	convert an uintmax_t into a hex/oct ascii string. pads with
+ *	LEADING ascii 0's to fill string completely
+ *	NOTE: the string created is NOT TERMINATED.
+ */
+
+int
+umax_asc(uintmax_t val, char *str, int len, int base)
+{
+	char *pt;
+	uintmax_t digit;
+
+	/*
+	 * WARNING str is not '\0' terminated by this routine
+	 */
+	pt = str + len - 1;
+
+	/*
+	 * do a tailwise conversion (start at right most end of string to place
+	 * least significant digit). Keep shifting until conversion value goes
+	 * to zero (all digits were converted)
+	 */
+	if (base == HEX) {
+		while (pt >= str) {
+			if ((digit = (val & 0xf)) < 10)
+				*pt-- = '0' + (char)digit;
+			else
+				*pt-- = 'a' + (char)(digit - 10);
+			if ((val = (val >> 4)) == 0)
+				break;
+		}
+	} else {
+		while (pt >= str) {
+			*pt-- = '0' + (char)(val & 0x7);
+			if ((val = (val >> 3)) == 0)
+				break;
+		}
+	}
+
+	/*
+	 * pad with leading ascii ZEROS. We return -1 if we ran out of space.
+	 */
+	while (pt >= str)
+		*pt-- = '0';
+	if (val != 0)
+		return -1;
+	return 0;
+}
+
+int
+check_Aflag(void)
+{
+
+	if (Aflag > 0)
+		return 1;
+	if (Aflag == 0) {
+		Aflag = -1;
+		tty_warn(0,
+		 "Removing leading / from absolute path names in the archive");
+	}
+	return 0;
+}