Patrick Welche <prlw1@cam.ac.uk>
[netbsd-mini2440.git] / bin / pax / gen_subs.c
blob039106875ea3cd0a6a06b1fb57aa7302a51413ff
1 /* $NetBSD: gen_subs.c,v 1.33 2006/02/11 10:43:18 dsl Exp $ */
3 /*-
4 * Copyright (c) 1992 Keith Muller.
5 * Copyright (c) 1992, 1993
6 * The Regents of the University of California. All rights reserved.
8 * This code is derived from software contributed to Berkeley by
9 * Keith Muller of the University of California, San Diego.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
36 #if HAVE_NBTOOL_CONFIG_H
37 #include "nbtool_config.h"
38 #endif
40 #include <sys/cdefs.h>
41 #if !defined(lint)
42 #if 0
43 static char sccsid[] = "@(#)gen_subs.c 8.1 (Berkeley) 5/31/93";
44 #else
45 __RCSID("$NetBSD: gen_subs.c,v 1.33 2006/02/11 10:43:18 dsl Exp $");
46 #endif
47 #endif /* not lint */
49 #include <sys/types.h>
50 #include <sys/time.h>
51 #include <sys/stat.h>
52 #include <sys/param.h>
54 #include <ctype.h>
55 #include <grp.h>
56 #include <pwd.h>
57 #include <vis.h>
58 #include <stdio.h>
59 #include <stdlib.h>
60 #include <string.h>
61 #include <time.h>
62 #include <tzfile.h>
63 #include <unistd.h>
65 #include "pax.h"
66 #include "extern.h"
69 * a collection of general purpose subroutines used by pax
73 * constants used by ls_list() when printing out archive members
75 #define MODELEN 20
76 #define DATELEN 64
77 #define SIXMONTHS ((DAYSPERNYEAR / 2) * SECSPERDAY)
78 #define CURFRMT "%b %e %H:%M"
79 #define OLDFRMT "%b %e %Y"
80 #ifndef UT_NAMESIZE
81 #define UT_NAMESIZE 8
82 #endif
83 #define UT_GRPSIZE 6
86 * ls_list()
87 * list the members of an archive in ls format
90 void
91 ls_list(ARCHD *arcn, time_t now, FILE *fp)
93 struct stat *sbp;
94 char f_mode[MODELEN];
95 char f_date[DATELEN];
96 const char *timefrmt, *user, *group;
99 * if not verbose, just print the file name
101 if (!vflag) {
102 (void)fprintf(fp, "%s\n", arcn->name);
103 (void)fflush(fp);
104 return;
108 * user wants long mode
110 sbp = &(arcn->sb);
111 strmode(sbp->st_mode, f_mode);
114 * time format based on age compared to the time pax was started.
116 if ((sbp->st_mtime + SIXMONTHS) <= now)
117 timefrmt = OLDFRMT;
118 else
119 timefrmt = CURFRMT;
122 * print file mode, link count, uid, gid and time
124 if (strftime(f_date,DATELEN,timefrmt,localtime(&(sbp->st_mtime))) == 0)
125 f_date[0] = '\0';
126 user = user_from_uid(sbp->st_uid, 0);
127 group = group_from_gid(sbp->st_gid, 0);
128 (void)fprintf(fp, "%s%2lu %-*s %-*s ", f_mode,
129 (unsigned long)sbp->st_nlink,
130 UT_NAMESIZE, user ? user : "", UT_GRPSIZE, group ? group : "");
133 * print device id's for devices, or sizes for other nodes
135 if ((arcn->type == PAX_CHR) || (arcn->type == PAX_BLK))
136 (void)fprintf(fp, "%4lu,%4lu ", (long) MAJOR(sbp->st_rdev),
137 (long) MINOR(sbp->st_rdev));
138 else {
139 (void)fprintf(fp, OFFT_FP("9") " ", (OFFT_T)sbp->st_size);
143 * print name and link info for hard and soft links
145 (void)fprintf(fp, "%s %s", f_date, arcn->name);
146 if ((arcn->type == PAX_HLK) || (arcn->type == PAX_HRG))
147 (void)fprintf(fp, " == %s\n", arcn->ln_name);
148 else if (arcn->type == PAX_SLK)
149 (void)fprintf(fp, " -> %s\n", arcn->ln_name);
150 else
151 (void)fputc('\n', fp);
152 (void)fflush(fp);
156 * tty_ls()
157 * print a short summary of file to tty.
160 void
161 ls_tty(ARCHD *arcn)
163 char f_date[DATELEN];
164 char f_mode[MODELEN];
165 const char *timefrmt;
167 if ((arcn->sb.st_mtime + SIXMONTHS) <= time((time_t *)NULL))
168 timefrmt = OLDFRMT;
169 else
170 timefrmt = CURFRMT;
173 * convert time to string, and print
175 if (strftime(f_date, DATELEN, timefrmt,
176 localtime(&(arcn->sb.st_mtime))) == 0)
177 f_date[0] = '\0';
178 strmode(arcn->sb.st_mode, f_mode);
179 tty_prnt("%s%s %s\n", f_mode, f_date, arcn->name);
180 return;
183 void
184 safe_print(const char *str, FILE *fp)
186 char visbuf[5];
187 const char *cp;
190 * if printing to a tty, use vis(3) to print special characters.
192 if (isatty(fileno(fp))) {
193 for (cp = str; *cp; cp++) {
194 (void)vis(visbuf, cp[0], VIS_CSTYLE, cp[1]);
195 (void)fputs(visbuf, fp);
197 } else {
198 (void)fputs(str, fp);
203 * asc_ul()
204 * convert hex/octal character string into a u_long. We do not have to
205 * check for overflow! (the headers in all supported formats are not large
206 * enough to create an overflow).
207 * NOTE: strings passed to us are NOT TERMINATED.
208 * Return:
209 * unsigned long value
212 u_long
213 asc_ul(char *str, int len, int base)
215 char *stop;
216 u_long tval = 0;
218 stop = str + len;
221 * skip over leading blanks and zeros
223 while ((str < stop) && ((*str == ' ') || (*str == '0')))
224 ++str;
227 * for each valid digit, shift running value (tval) over to next digit
228 * and add next digit
230 if (base == HEX) {
231 while (str < stop) {
232 if ((*str >= '0') && (*str <= '9'))
233 tval = (tval << 4) + (*str++ - '0');
234 else if ((*str >= 'A') && (*str <= 'F'))
235 tval = (tval << 4) + 10 + (*str++ - 'A');
236 else if ((*str >= 'a') && (*str <= 'f'))
237 tval = (tval << 4) + 10 + (*str++ - 'a');
238 else
239 break;
241 } else {
242 while ((str < stop) && (*str >= '0') && (*str <= '7'))
243 tval = (tval << 3) + (*str++ - '0');
245 return tval;
249 * ul_asc()
250 * convert an unsigned long into an hex/oct ascii string. pads with LEADING
251 * ascii 0's to fill string completely
252 * NOTE: the string created is NOT TERMINATED.
256 ul_asc(u_long val, char *str, int len, int base)
258 char *pt;
259 u_long digit;
262 * WARNING str is not '\0' terminated by this routine
264 pt = str + len - 1;
267 * do a tailwise conversion (start at right most end of string to place
268 * least significant digit). Keep shifting until conversion value goes
269 * to zero (all digits were converted)
271 if (base == HEX) {
272 while (pt >= str) {
273 if ((digit = (val & 0xf)) < 10)
274 *pt-- = '0' + (char)digit;
275 else
276 *pt-- = 'a' + (char)(digit - 10);
277 if ((val = (val >> 4)) == (u_long)0)
278 break;
280 } else {
281 while (pt >= str) {
282 *pt-- = '0' + (char)(val & 0x7);
283 if ((val = (val >> 3)) == (u_long)0)
284 break;
289 * pad with leading ascii ZEROS. We return -1 if we ran out of space.
291 while (pt >= str)
292 *pt-- = '0';
293 if (val != (u_long)0)
294 return -1;
295 return 0;
298 #if !defined(_LP64)
300 * asc_ull()
301 * convert hex/octal character string into a unsigned long long. We do
302 * not have to to check for overflow! (the headers in all supported
303 * formats are not large enough to create an overflow).
304 * NOTE: strings passed to us are NOT TERMINATED.
305 * Return:
306 * unsigned long long value
309 unsigned long long
310 asc_ull(char *str, int len, int base)
312 char *stop;
313 unsigned long long tval = 0;
315 stop = str + len;
318 * skip over leading blanks and zeros
320 while ((str < stop) && ((*str == ' ') || (*str == '0')))
321 ++str;
324 * for each valid digit, shift running value (tval) over to next digit
325 * and add next digit
327 if (base == HEX) {
328 while (str < stop) {
329 if ((*str >= '0') && (*str <= '9'))
330 tval = (tval << 4) + (*str++ - '0');
331 else if ((*str >= 'A') && (*str <= 'F'))
332 tval = (tval << 4) + 10 + (*str++ - 'A');
333 else if ((*str >= 'a') && (*str <= 'f'))
334 tval = (tval << 4) + 10 + (*str++ - 'a');
335 else
336 break;
338 } else {
339 while ((str < stop) && (*str >= '0') && (*str <= '7'))
340 tval = (tval << 3) + (*str++ - '0');
342 return tval;
346 * ull_asc()
347 * convert an unsigned long long into a hex/oct ascii string. pads with
348 * LEADING ascii 0's to fill string completely
349 * NOTE: the string created is NOT TERMINATED.
353 ull_asc(unsigned long long val, char *str, int len, int base)
355 char *pt;
356 unsigned long long digit;
359 * WARNING str is not '\0' terminated by this routine
361 pt = str + len - 1;
364 * do a tailwise conversion (start at right most end of string to place
365 * least significant digit). Keep shifting until conversion value goes
366 * to zero (all digits were converted)
368 if (base == HEX) {
369 while (pt >= str) {
370 if ((digit = (val & 0xf)) < 10)
371 *pt-- = '0' + (char)digit;
372 else
373 *pt-- = 'a' + (char)(digit - 10);
374 if ((val = (val >> 4)) == (unsigned long long)0)
375 break;
377 } else {
378 while (pt >= str) {
379 *pt-- = '0' + (char)(val & 0x7);
380 if ((val = (val >> 3)) == (unsigned long long)0)
381 break;
386 * pad with leading ascii ZEROS. We return -1 if we ran out of space.
388 while (pt >= str)
389 *pt-- = '0';
390 if (val != (unsigned long long)0)
391 return -1;
392 return 0;
394 #endif
397 check_Aflag(void)
400 if (Aflag > 0)
401 return 1;
402 if (Aflag == 0) {
403 Aflag = -1;
404 tty_warn(0,
405 "Removing leading / from absolute path names in the archive");
407 return 0;