8a16b7a18f
Mainly focus on files that use BSD 3-Clause license. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. Special thanks to Wind River for providing access to "The Duke of Highlander" tool: an older (2014) run over FreeBSD tree was useful as a starting point.
400 lines
9.5 KiB
C
400 lines
9.5 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 1992 Keith Muller.
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Keith Muller of the University of California, San Diego.
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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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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)gen_subs.c 8.1 (Berkeley) 5/31/93";
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#endif
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#endif /* not lint */
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <sys/time.h>
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#include <sys/stat.h>
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#include <langinfo.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#include "pax.h"
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#include "extern.h"
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/*
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* a collection of general purpose subroutines used by pax
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*/
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/*
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* constants used by ls_list() when printing out archive members
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*/
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#define MODELEN 20
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#define DATELEN 64
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#define SIXMONTHS ((365 / 2) * 86400)
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#define CURFRMTM "%b %e %H:%M"
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#define OLDFRMTM "%b %e %Y"
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#define CURFRMTD "%e %b %H:%M"
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#define OLDFRMTD "%e %b %Y"
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static int d_first = -1;
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/*
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* ls_list()
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* list the members of an archive in ls format
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*/
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void
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ls_list(ARCHD *arcn, time_t now, FILE *fp)
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{
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struct stat *sbp;
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char f_mode[MODELEN];
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char f_date[DATELEN];
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const char *timefrmt;
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/*
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* if not verbose, just print the file name
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*/
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if (!vflag) {
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(void)fprintf(fp, "%s\n", arcn->name);
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(void)fflush(fp);
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return;
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}
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if (d_first < 0)
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d_first = (*nl_langinfo(D_MD_ORDER) == 'd');
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/*
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* user wants long mode
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*/
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sbp = &(arcn->sb);
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strmode(sbp->st_mode, f_mode);
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/*
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* time format based on age compared to the time pax was started.
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*/
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if ((sbp->st_mtime + SIXMONTHS) <= now)
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timefrmt = d_first ? OLDFRMTD : OLDFRMTM;
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else
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timefrmt = d_first ? CURFRMTD : CURFRMTM;
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/*
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* print file mode, link count, uid, gid and time
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*/
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if (strftime(f_date,DATELEN,timefrmt,localtime(&(sbp->st_mtime))) == 0)
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f_date[0] = '\0';
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(void)fprintf(fp, "%s%2ju %-12s %-12s ", f_mode,
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(uintmax_t)sbp->st_nlink,
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name_uid(sbp->st_uid, 1), name_gid(sbp->st_gid, 1));
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/*
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* print device id's for devices, or sizes for other nodes
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*/
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if ((arcn->type == PAX_CHR) || (arcn->type == PAX_BLK))
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# ifdef NET2_STAT
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(void)fprintf(fp, "%4u,%4u ", MAJOR(sbp->st_rdev),
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MINOR(sbp->st_rdev));
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# else
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(void)fprintf(fp, "%4lu,%4lu ", (unsigned long)MAJOR(sbp->st_rdev),
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(unsigned long)MINOR(sbp->st_rdev));
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# endif
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else {
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# ifdef NET2_STAT
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(void)fprintf(fp, "%9lu ", sbp->st_size);
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# else
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(void)fprintf(fp, "%9ju ", (uintmax_t)sbp->st_size);
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# endif
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}
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/*
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* print name and link info for hard and soft links
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*/
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(void)fprintf(fp, "%s %s", f_date, arcn->name);
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if ((arcn->type == PAX_HLK) || (arcn->type == PAX_HRG))
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(void)fprintf(fp, " == %s\n", arcn->ln_name);
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else if (arcn->type == PAX_SLK)
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(void)fprintf(fp, " => %s\n", arcn->ln_name);
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else
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(void)putc('\n', fp);
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(void)fflush(fp);
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return;
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}
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/*
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* tty_ls()
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* print a short summary of file to tty.
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*/
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void
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ls_tty(ARCHD *arcn)
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{
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char f_date[DATELEN];
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char f_mode[MODELEN];
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const char *timefrmt;
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if (d_first < 0)
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d_first = (*nl_langinfo(D_MD_ORDER) == 'd');
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if ((arcn->sb.st_mtime + SIXMONTHS) <= time(NULL))
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timefrmt = d_first ? OLDFRMTD : OLDFRMTM;
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else
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timefrmt = d_first ? CURFRMTD : CURFRMTM;
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/*
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* convert time to string, and print
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*/
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if (strftime(f_date, DATELEN, timefrmt,
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localtime(&(arcn->sb.st_mtime))) == 0)
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f_date[0] = '\0';
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strmode(arcn->sb.st_mode, f_mode);
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tty_prnt("%s%s %s\n", f_mode, f_date, arcn->name);
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return;
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}
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/*
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* l_strncpy()
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* copy src to dest up to len chars (stopping at first '\0').
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* when src is shorter than len, pads to len with '\0'.
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* Return:
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* number of chars copied. (Note this is a real performance win over
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* doing a strncpy(), a strlen(), and then a possible memset())
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*/
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int
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l_strncpy(char *dest, const char *src, int len)
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{
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char *stop;
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char *start;
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stop = dest + len;
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start = dest;
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while ((dest < stop) && (*src != '\0'))
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*dest++ = *src++;
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len = dest - start;
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while (dest < stop)
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*dest++ = '\0';
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return(len);
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}
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/*
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* asc_ul()
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* convert hex/octal character string into a u_long. We do not have to
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* check for overflow! (the headers in all supported formats are not large
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* enough to create an overflow).
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* NOTE: strings passed to us are NOT TERMINATED.
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* Return:
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* unsigned long value
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*/
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u_long
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asc_ul(char *str, int len, int base)
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{
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char *stop;
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u_long tval = 0;
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stop = str + len;
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/*
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* skip over leading blanks and zeros
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*/
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while ((str < stop) && ((*str == ' ') || (*str == '0')))
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++str;
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/*
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* for each valid digit, shift running value (tval) over to next digit
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* and add next digit
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*/
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if (base == HEX) {
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while (str < stop) {
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if ((*str >= '0') && (*str <= '9'))
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tval = (tval << 4) + (*str++ - '0');
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else if ((*str >= 'A') && (*str <= 'F'))
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tval = (tval << 4) + 10 + (*str++ - 'A');
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else if ((*str >= 'a') && (*str <= 'f'))
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tval = (tval << 4) + 10 + (*str++ - 'a');
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else
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break;
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}
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} else {
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while ((str < stop) && (*str >= '0') && (*str <= '7'))
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tval = (tval << 3) + (*str++ - '0');
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}
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return(tval);
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}
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/*
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* ul_asc()
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* convert an unsigned long into an hex/oct ascii string. pads with LEADING
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* ascii 0's to fill string completely
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* NOTE: the string created is NOT TERMINATED.
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*/
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int
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ul_asc(u_long val, char *str, int len, int base)
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{
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char *pt;
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u_long digit;
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/*
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* WARNING str is not '\0' terminated by this routine
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*/
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pt = str + len - 1;
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/*
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* do a tailwise conversion (start at right most end of string to place
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* least significant digit). Keep shifting until conversion value goes
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* to zero (all digits were converted)
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*/
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if (base == HEX) {
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while (pt >= str) {
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if ((digit = (val & 0xf)) < 10)
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*pt-- = '0' + (char)digit;
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else
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*pt-- = 'a' + (char)(digit - 10);
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if ((val = (val >> 4)) == (u_long)0)
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break;
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}
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} else {
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while (pt >= str) {
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*pt-- = '0' + (char)(val & 0x7);
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if ((val = (val >> 3)) == (u_long)0)
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break;
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}
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}
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/*
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* pad with leading ascii ZEROS. We return -1 if we ran out of space.
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*/
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while (pt >= str)
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*pt-- = '0';
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if (val != (u_long)0)
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return(-1);
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return(0);
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}
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#ifndef NET2_STAT
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/*
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* asc_uqd()
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* convert hex/octal character string into a u_quad_t. We do not have to
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* check for overflow! (the headers in all supported formats are not large
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* enough to create an overflow).
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* NOTE: strings passed to us are NOT TERMINATED.
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* Return:
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* u_quad_t value
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*/
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u_quad_t
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asc_uqd(char *str, int len, int base)
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{
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char *stop;
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u_quad_t tval = 0;
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stop = str + len;
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/*
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* skip over leading blanks and zeros
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*/
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while ((str < stop) && ((*str == ' ') || (*str == '0')))
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++str;
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/*
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* for each valid digit, shift running value (tval) over to next digit
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* and add next digit
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*/
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if (base == HEX) {
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while (str < stop) {
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if ((*str >= '0') && (*str <= '9'))
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tval = (tval << 4) + (*str++ - '0');
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else if ((*str >= 'A') && (*str <= 'F'))
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tval = (tval << 4) + 10 + (*str++ - 'A');
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else if ((*str >= 'a') && (*str <= 'f'))
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tval = (tval << 4) + 10 + (*str++ - 'a');
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else
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break;
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}
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} else {
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while ((str < stop) && (*str >= '0') && (*str <= '7'))
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tval = (tval << 3) + (*str++ - '0');
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}
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return(tval);
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}
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/*
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* uqd_asc()
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* convert an u_quad_t into a hex/oct ascii string. pads with LEADING
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* ascii 0's to fill string completely
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* NOTE: the string created is NOT TERMINATED.
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*/
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int
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uqd_asc(u_quad_t val, char *str, int len, int base)
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{
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char *pt;
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u_quad_t digit;
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/*
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* WARNING str is not '\0' terminated by this routine
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*/
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pt = str + len - 1;
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/*
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* do a tailwise conversion (start at right most end of string to place
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* least significant digit). Keep shifting until conversion value goes
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* to zero (all digits were converted)
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*/
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if (base == HEX) {
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while (pt >= str) {
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if ((digit = (val & 0xf)) < 10)
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*pt-- = '0' + (char)digit;
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else
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*pt-- = 'a' + (char)(digit - 10);
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if ((val = (val >> 4)) == (u_quad_t)0)
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break;
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}
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} else {
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while (pt >= str) {
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*pt-- = '0' + (char)(val & 0x7);
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if ((val = (val >> 3)) == (u_quad_t)0)
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break;
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}
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}
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/*
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* pad with leading ascii ZEROS. We return -1 if we ran out of space.
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*/
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while (pt >= str)
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*pt-- = '0';
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if (val != (u_quad_t)0)
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return(-1);
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return(0);
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}
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#endif
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