160b4ad09SPeter Avalos /*- 260b4ad09SPeter Avalos * Copyright (c) 2003-2007 Tim Kientzle 360b4ad09SPeter Avalos * All rights reserved. 460b4ad09SPeter Avalos * 560b4ad09SPeter Avalos * Redistribution and use in source and binary forms, with or without 660b4ad09SPeter Avalos * modification, are permitted provided that the following conditions 760b4ad09SPeter Avalos * are met: 860b4ad09SPeter Avalos * 1. Redistributions of source code must retain the above copyright 960b4ad09SPeter Avalos * notice, this list of conditions and the following disclaimer. 1060b4ad09SPeter Avalos * 2. Redistributions in binary form must reproduce the above copyright 1160b4ad09SPeter Avalos * notice, this list of conditions and the following disclaimer in the 1260b4ad09SPeter Avalos * documentation and/or other materials provided with the distribution. 1360b4ad09SPeter Avalos * 1460b4ad09SPeter Avalos * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR 1560b4ad09SPeter Avalos * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 1660b4ad09SPeter Avalos * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 1760b4ad09SPeter Avalos * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT, 1860b4ad09SPeter Avalos * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 1960b4ad09SPeter Avalos * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2060b4ad09SPeter Avalos * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2160b4ad09SPeter Avalos * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2260b4ad09SPeter Avalos * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 2360b4ad09SPeter Avalos * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2460b4ad09SPeter Avalos */ 2560b4ad09SPeter Avalos 2660b4ad09SPeter Avalos #include "bsdtar_platform.h" 278029ab02SPeter Avalos __FBSDID("$FreeBSD: src/usr.bin/tar/util.c,v 1.23 2008/12/15 06:00:25 kientzle Exp $"); 2860b4ad09SPeter Avalos 2960b4ad09SPeter Avalos #ifdef HAVE_SYS_STAT_H 3060b4ad09SPeter Avalos #include <sys/stat.h> 3160b4ad09SPeter Avalos #endif 3260b4ad09SPeter Avalos #ifdef HAVE_SYS_TYPES_H 3360b4ad09SPeter Avalos #include <sys/types.h> /* Linux doesn't define mode_t, etc. in sys/stat.h. */ 3460b4ad09SPeter Avalos #endif 3560b4ad09SPeter Avalos #include <ctype.h> 3660b4ad09SPeter Avalos #ifdef HAVE_ERRNO_H 3760b4ad09SPeter Avalos #include <errno.h> 3860b4ad09SPeter Avalos #endif 399c82a63eSPeter Avalos #ifdef HAVE_IO_H 409c82a63eSPeter Avalos #include <io.h> 419c82a63eSPeter Avalos #endif 4260b4ad09SPeter Avalos #ifdef HAVE_STDARG_H 4360b4ad09SPeter Avalos #include <stdarg.h> 4460b4ad09SPeter Avalos #endif 459c82a63eSPeter Avalos #ifdef HAVE_STDINT_H 469c82a63eSPeter Avalos #include <stdint.h> 479c82a63eSPeter Avalos #endif 4860b4ad09SPeter Avalos #include <stdio.h> 4960b4ad09SPeter Avalos #ifdef HAVE_STDLIB_H 5060b4ad09SPeter Avalos #include <stdlib.h> 5160b4ad09SPeter Avalos #endif 5260b4ad09SPeter Avalos #ifdef HAVE_STRING_H 5360b4ad09SPeter Avalos #include <string.h> 5460b4ad09SPeter Avalos #endif 558029ab02SPeter Avalos #ifdef HAVE_WCTYPE_H 568029ab02SPeter Avalos #include <wctype.h> 578029ab02SPeter Avalos #else 588029ab02SPeter Avalos /* If we don't have wctype, we need to hack up some version of iswprint(). */ 598029ab02SPeter Avalos #define iswprint isprint 608029ab02SPeter Avalos #endif 6160b4ad09SPeter Avalos 6260b4ad09SPeter Avalos #include "bsdtar.h" 639c82a63eSPeter Avalos #include "err.h" 64*6b384f39SPeter Avalos #include "passphrase.h" 6560b4ad09SPeter Avalos 668029ab02SPeter Avalos static size_t bsdtar_expand_char(char *, size_t, char); 678029ab02SPeter Avalos static const char *strip_components(const char *path, int elements); 688029ab02SPeter Avalos 699c82a63eSPeter Avalos #if defined(_WIN32) && !defined(__CYGWIN__) 709c82a63eSPeter Avalos #define read _read 719c82a63eSPeter Avalos #endif 729c82a63eSPeter Avalos 738029ab02SPeter Avalos /* TODO: Hack up a version of mbtowc for platforms with no wide 748029ab02SPeter Avalos * character support at all. I think the following might suffice, 758029ab02SPeter Avalos * but it needs careful testing. 768029ab02SPeter Avalos * #if !HAVE_MBTOWC 778029ab02SPeter Avalos * #define mbtowc(wcp, p, n) ((*wcp = *p), 1) 788029ab02SPeter Avalos * #endif 798029ab02SPeter Avalos */ 8060b4ad09SPeter Avalos 8160b4ad09SPeter Avalos /* 8260b4ad09SPeter Avalos * Print a string, taking care with any non-printable characters. 838029ab02SPeter Avalos * 848029ab02SPeter Avalos * Note that we use a stack-allocated buffer to receive the formatted 858029ab02SPeter Avalos * string if we can. This is partly performance (avoiding a call to 868029ab02SPeter Avalos * malloc()), partly out of expedience (we have to call vsnprintf() 878029ab02SPeter Avalos * before malloc() anyway to find out how big a buffer we need; we may 888029ab02SPeter Avalos * as well point that first call at a small local buffer in case it 898029ab02SPeter Avalos * works), but mostly for safety (so we can use this to print messages 908029ab02SPeter Avalos * about out-of-memory conditions). 9160b4ad09SPeter Avalos */ 9260b4ad09SPeter Avalos 9360b4ad09SPeter Avalos void 9460b4ad09SPeter Avalos safe_fprintf(FILE *f, const char *fmt, ...) 9560b4ad09SPeter Avalos { 968029ab02SPeter Avalos char fmtbuff_stack[256]; /* Place to format the printf() string. */ 978029ab02SPeter Avalos char outbuff[256]; /* Buffer for outgoing characters. */ 988029ab02SPeter Avalos char *fmtbuff_heap; /* If fmtbuff_stack is too small, we use malloc */ 998029ab02SPeter Avalos char *fmtbuff; /* Pointer to fmtbuff_stack or fmtbuff_heap. */ 1008029ab02SPeter Avalos int fmtbuff_length; 1019c82a63eSPeter Avalos int length, n; 10260b4ad09SPeter Avalos va_list ap; 1038029ab02SPeter Avalos const char *p; 10460b4ad09SPeter Avalos unsigned i; 1058029ab02SPeter Avalos wchar_t wc; 1068029ab02SPeter Avalos char try_wc; 10760b4ad09SPeter Avalos 10860b4ad09SPeter Avalos /* Use a stack-allocated buffer if we can, for speed and safety. */ 1098029ab02SPeter Avalos fmtbuff_heap = NULL; 1108029ab02SPeter Avalos fmtbuff_length = sizeof(fmtbuff_stack); 1118029ab02SPeter Avalos fmtbuff = fmtbuff_stack; 11260b4ad09SPeter Avalos 1138029ab02SPeter Avalos /* Try formatting into the stack buffer. */ 11460b4ad09SPeter Avalos va_start(ap, fmt); 1158029ab02SPeter Avalos length = vsnprintf(fmtbuff, fmtbuff_length, fmt, ap); 11660b4ad09SPeter Avalos va_end(ap); 1178029ab02SPeter Avalos 1188029ab02SPeter Avalos /* If the result was too large, allocate a buffer on the heap. */ 11955c601bbSPeter Avalos while (length < 0 || length >= fmtbuff_length) { 12055c601bbSPeter Avalos if (length >= fmtbuff_length) 1218029ab02SPeter Avalos fmtbuff_length = length+1; 12255c601bbSPeter Avalos else if (fmtbuff_length < 8192) 12355c601bbSPeter Avalos fmtbuff_length *= 2; 124d4d8193eSPeter Avalos else if (fmtbuff_length < 1000000) 12555c601bbSPeter Avalos fmtbuff_length += fmtbuff_length / 4; 126d4d8193eSPeter Avalos else { 127d4d8193eSPeter Avalos length = fmtbuff_length; 12855c601bbSPeter Avalos fmtbuff_heap[length-1] = '\0'; 12955c601bbSPeter Avalos break; 13055c601bbSPeter Avalos } 13155c601bbSPeter Avalos free(fmtbuff_heap); 1328029ab02SPeter Avalos fmtbuff_heap = malloc(fmtbuff_length); 1338029ab02SPeter Avalos 1348029ab02SPeter Avalos /* Reformat the result into the heap buffer if we can. */ 1358029ab02SPeter Avalos if (fmtbuff_heap != NULL) { 1368029ab02SPeter Avalos fmtbuff = fmtbuff_heap; 13760b4ad09SPeter Avalos va_start(ap, fmt); 1388029ab02SPeter Avalos length = vsnprintf(fmtbuff, fmtbuff_length, fmt, ap); 13960b4ad09SPeter Avalos va_end(ap); 1408029ab02SPeter Avalos } else { 1418029ab02SPeter Avalos /* Leave fmtbuff pointing to the truncated 1428029ab02SPeter Avalos * string in fmtbuff_stack. */ 1438029ab02SPeter Avalos length = sizeof(fmtbuff_stack) - 1; 14455c601bbSPeter Avalos break; 14560b4ad09SPeter Avalos } 14660b4ad09SPeter Avalos } 14760b4ad09SPeter Avalos 1488029ab02SPeter Avalos /* Note: mbrtowc() has a cleaner API, but mbtowc() seems a bit 1498029ab02SPeter Avalos * more portable, so we use that here instead. */ 150d4d8193eSPeter Avalos if (mbtowc(NULL, NULL, 1) == -1) { /* Reset the shift state. */ 151d4d8193eSPeter Avalos /* mbtowc() should never fail in practice, but 152d4d8193eSPeter Avalos * handle the theoretical error anyway. */ 153d4d8193eSPeter Avalos free(fmtbuff_heap); 154d4d8193eSPeter Avalos return; 155d4d8193eSPeter Avalos } 1568029ab02SPeter Avalos 15760b4ad09SPeter Avalos /* Write data, expanding unprintable characters. */ 1588029ab02SPeter Avalos p = fmtbuff; 15960b4ad09SPeter Avalos i = 0; 1608029ab02SPeter Avalos try_wc = 1; 16160b4ad09SPeter Avalos while (*p != '\0') { 16260b4ad09SPeter Avalos 1638029ab02SPeter Avalos /* Convert to wide char, test if the wide 1648029ab02SPeter Avalos * char is printable in the current locale. */ 1658029ab02SPeter Avalos if (try_wc && (n = mbtowc(&wc, p, length)) != -1) { 1668029ab02SPeter Avalos length -= n; 1678029ab02SPeter Avalos if (iswprint(wc) && wc != L'\\') { 1688029ab02SPeter Avalos /* Printable, copy the bytes through. */ 1698029ab02SPeter Avalos while (n-- > 0) 1708029ab02SPeter Avalos outbuff[i++] = *p++; 1718029ab02SPeter Avalos } else { 1728029ab02SPeter Avalos /* Not printable, format the bytes. */ 1738029ab02SPeter Avalos while (n-- > 0) 1749c82a63eSPeter Avalos i += (unsigned)bsdtar_expand_char( 1758029ab02SPeter Avalos outbuff, i, *p++); 1768029ab02SPeter Avalos } 1778029ab02SPeter Avalos } else { 1788029ab02SPeter Avalos /* After any conversion failure, don't bother 1798029ab02SPeter Avalos * trying to convert the rest. */ 1809c82a63eSPeter Avalos i += (unsigned)bsdtar_expand_char(outbuff, i, *p++); 1818029ab02SPeter Avalos try_wc = 0; 1828029ab02SPeter Avalos } 1838029ab02SPeter Avalos 1848029ab02SPeter Avalos /* If our output buffer is full, dump it and keep going. */ 1858029ab02SPeter Avalos if (i > (sizeof(outbuff) - 20)) { 1869c82a63eSPeter Avalos outbuff[i] = '\0'; 1878029ab02SPeter Avalos fprintf(f, "%s", outbuff); 1888029ab02SPeter Avalos i = 0; 1898029ab02SPeter Avalos } 1908029ab02SPeter Avalos } 1919c82a63eSPeter Avalos outbuff[i] = '\0'; 1928029ab02SPeter Avalos fprintf(f, "%s", outbuff); 1938029ab02SPeter Avalos 1948029ab02SPeter Avalos /* If we allocated a heap-based formatting buffer, free it now. */ 1958029ab02SPeter Avalos free(fmtbuff_heap); 1968029ab02SPeter Avalos } 1978029ab02SPeter Avalos 1988029ab02SPeter Avalos /* 1998029ab02SPeter Avalos * Render an arbitrary sequence of bytes into printable ASCII characters. 2008029ab02SPeter Avalos */ 2018029ab02SPeter Avalos static size_t 2028029ab02SPeter Avalos bsdtar_expand_char(char *buff, size_t offset, char c) 2038029ab02SPeter Avalos { 2048029ab02SPeter Avalos size_t i = offset; 2058029ab02SPeter Avalos 2068029ab02SPeter Avalos if (isprint((unsigned char)c) && c != '\\') 2078029ab02SPeter Avalos buff[i++] = c; 20860b4ad09SPeter Avalos else { 2098029ab02SPeter Avalos buff[i++] = '\\'; 21060b4ad09SPeter Avalos switch (c) { 2118029ab02SPeter Avalos case '\a': buff[i++] = 'a'; break; 2128029ab02SPeter Avalos case '\b': buff[i++] = 'b'; break; 2138029ab02SPeter Avalos case '\f': buff[i++] = 'f'; break; 2148029ab02SPeter Avalos case '\n': buff[i++] = 'n'; break; 21560b4ad09SPeter Avalos #if '\r' != '\n' 21660b4ad09SPeter Avalos /* On some platforms, \n and \r are the same. */ 2178029ab02SPeter Avalos case '\r': buff[i++] = 'r'; break; 21860b4ad09SPeter Avalos #endif 2198029ab02SPeter Avalos case '\t': buff[i++] = 't'; break; 2208029ab02SPeter Avalos case '\v': buff[i++] = 'v'; break; 2218029ab02SPeter Avalos case '\\': buff[i++] = '\\'; break; 22260b4ad09SPeter Avalos default: 2238029ab02SPeter Avalos sprintf(buff + i, "%03o", 0xFF & (int)c); 22460b4ad09SPeter Avalos i += 3; 22560b4ad09SPeter Avalos } 22660b4ad09SPeter Avalos } 22760b4ad09SPeter Avalos 2288029ab02SPeter Avalos return (i - offset); 22960b4ad09SPeter Avalos } 23060b4ad09SPeter Avalos 23160b4ad09SPeter Avalos int 23260b4ad09SPeter Avalos yes(const char *fmt, ...) 23360b4ad09SPeter Avalos { 23460b4ad09SPeter Avalos char buff[32]; 23560b4ad09SPeter Avalos char *p; 23660b4ad09SPeter Avalos ssize_t l; 23760b4ad09SPeter Avalos 23860b4ad09SPeter Avalos va_list ap; 23960b4ad09SPeter Avalos va_start(ap, fmt); 24060b4ad09SPeter Avalos vfprintf(stderr, fmt, ap); 24160b4ad09SPeter Avalos va_end(ap); 24260b4ad09SPeter Avalos fprintf(stderr, " (y/N)? "); 24360b4ad09SPeter Avalos fflush(stderr); 24460b4ad09SPeter Avalos 24560b4ad09SPeter Avalos l = read(2, buff, sizeof(buff) - 1); 246c09f92d2SPeter Avalos if (l < 0) { 247c09f92d2SPeter Avalos fprintf(stderr, "Keyboard read failed\n"); 248c09f92d2SPeter Avalos exit(1); 249c09f92d2SPeter Avalos } 250c09f92d2SPeter Avalos if (l == 0) 25160b4ad09SPeter Avalos return (0); 25260b4ad09SPeter Avalos buff[l] = 0; 25360b4ad09SPeter Avalos 25460b4ad09SPeter Avalos for (p = buff; *p != '\0'; p++) { 2558029ab02SPeter Avalos if (isspace((unsigned char)*p)) 25660b4ad09SPeter Avalos continue; 25760b4ad09SPeter Avalos switch(*p) { 25860b4ad09SPeter Avalos case 'y': case 'Y': 25960b4ad09SPeter Avalos return (1); 26060b4ad09SPeter Avalos case 'n': case 'N': 26160b4ad09SPeter Avalos return (0); 26260b4ad09SPeter Avalos default: 26360b4ad09SPeter Avalos return (0); 26460b4ad09SPeter Avalos } 26560b4ad09SPeter Avalos } 26660b4ad09SPeter Avalos 26760b4ad09SPeter Avalos return (0); 26860b4ad09SPeter Avalos } 26960b4ad09SPeter Avalos 27060b4ad09SPeter Avalos /*- 27160b4ad09SPeter Avalos * The logic here for -C <dir> attempts to avoid 27260b4ad09SPeter Avalos * chdir() as long as possible. For example: 27360b4ad09SPeter Avalos * "-C /foo -C /bar file" needs chdir("/bar") but not chdir("/foo") 27460b4ad09SPeter Avalos * "-C /foo -C bar file" needs chdir("/foo/bar") 27560b4ad09SPeter Avalos * "-C /foo -C bar /file1" does not need chdir() 27660b4ad09SPeter Avalos * "-C /foo -C bar /file1 file2" needs chdir("/foo/bar") before file2 27760b4ad09SPeter Avalos * 27860b4ad09SPeter Avalos * The only correct way to handle this is to record a "pending" chdir 27960b4ad09SPeter Avalos * request and combine multiple requests intelligently until we 28060b4ad09SPeter Avalos * need to process a non-absolute file. set_chdir() adds the new dir 28160b4ad09SPeter Avalos * to the pending list; do_chdir() actually executes any pending chdir. 28260b4ad09SPeter Avalos * 28360b4ad09SPeter Avalos * This way, programs that build tar command lines don't have to worry 28460b4ad09SPeter Avalos * about -C with non-existent directories; such requests will only 28560b4ad09SPeter Avalos * fail if the directory must be accessed. 2869c82a63eSPeter Avalos * 28760b4ad09SPeter Avalos */ 28860b4ad09SPeter Avalos void 28960b4ad09SPeter Avalos set_chdir(struct bsdtar *bsdtar, const char *newdir) 29060b4ad09SPeter Avalos { 291c09f92d2SPeter Avalos #if defined(_WIN32) && !defined(__CYGWIN__) 292c09f92d2SPeter Avalos if (newdir[0] == '/' || newdir[0] == '\\' || 293c09f92d2SPeter Avalos /* Detect this type, for example, "C:\" or "C:/" */ 294c09f92d2SPeter Avalos (((newdir[0] >= 'a' && newdir[0] <= 'z') || 295c09f92d2SPeter Avalos (newdir[0] >= 'A' && newdir[0] <= 'Z')) && 296c09f92d2SPeter Avalos newdir[1] == ':' && (newdir[2] == '/' || newdir[2] == '\\'))) { 297c09f92d2SPeter Avalos #else 29860b4ad09SPeter Avalos if (newdir[0] == '/') { 299c09f92d2SPeter Avalos #endif 30060b4ad09SPeter Avalos /* The -C /foo -C /bar case; dump first one. */ 30160b4ad09SPeter Avalos free(bsdtar->pending_chdir); 30260b4ad09SPeter Avalos bsdtar->pending_chdir = NULL; 30360b4ad09SPeter Avalos } 30460b4ad09SPeter Avalos if (bsdtar->pending_chdir == NULL) 30560b4ad09SPeter Avalos /* Easy case: no previously-saved dir. */ 30660b4ad09SPeter Avalos bsdtar->pending_chdir = strdup(newdir); 30760b4ad09SPeter Avalos else { 30860b4ad09SPeter Avalos /* The -C /foo -C bar case; concatenate */ 30960b4ad09SPeter Avalos char *old_pending = bsdtar->pending_chdir; 31060b4ad09SPeter Avalos size_t old_len = strlen(old_pending); 31160b4ad09SPeter Avalos bsdtar->pending_chdir = malloc(old_len + strlen(newdir) + 2); 31260b4ad09SPeter Avalos if (old_pending[old_len - 1] == '/') 31360b4ad09SPeter Avalos old_pending[old_len - 1] = '\0'; 31460b4ad09SPeter Avalos if (bsdtar->pending_chdir != NULL) 31560b4ad09SPeter Avalos sprintf(bsdtar->pending_chdir, "%s/%s", 31660b4ad09SPeter Avalos old_pending, newdir); 31760b4ad09SPeter Avalos free(old_pending); 31860b4ad09SPeter Avalos } 31960b4ad09SPeter Avalos if (bsdtar->pending_chdir == NULL) 3209c82a63eSPeter Avalos lafe_errc(1, errno, "No memory"); 32160b4ad09SPeter Avalos } 32260b4ad09SPeter Avalos 32360b4ad09SPeter Avalos void 32460b4ad09SPeter Avalos do_chdir(struct bsdtar *bsdtar) 32560b4ad09SPeter Avalos { 32660b4ad09SPeter Avalos if (bsdtar->pending_chdir == NULL) 32760b4ad09SPeter Avalos return; 32860b4ad09SPeter Avalos 32960b4ad09SPeter Avalos if (chdir(bsdtar->pending_chdir) != 0) { 3309c82a63eSPeter Avalos lafe_errc(1, 0, "could not chdir to '%s'\n", 33160b4ad09SPeter Avalos bsdtar->pending_chdir); 33260b4ad09SPeter Avalos } 33360b4ad09SPeter Avalos free(bsdtar->pending_chdir); 33460b4ad09SPeter Avalos bsdtar->pending_chdir = NULL; 33560b4ad09SPeter Avalos } 33660b4ad09SPeter Avalos 3379c82a63eSPeter Avalos static const char * 3389c82a63eSPeter Avalos strip_components(const char *p, int elements) 3398029ab02SPeter Avalos { 3409c82a63eSPeter Avalos /* Skip as many elements as necessary. */ 3418029ab02SPeter Avalos while (elements > 0) { 3428029ab02SPeter Avalos switch (*p++) { 3438029ab02SPeter Avalos case '/': 3449c82a63eSPeter Avalos #if defined(_WIN32) && !defined(__CYGWIN__) 3459c82a63eSPeter Avalos case '\\': /* Support \ path sep on Windows ONLY. */ 3469c82a63eSPeter Avalos #endif 3478029ab02SPeter Avalos elements--; 3488029ab02SPeter Avalos break; 3498029ab02SPeter Avalos case '\0': 3508029ab02SPeter Avalos /* Path is too short, skip it. */ 3518029ab02SPeter Avalos return (NULL); 3528029ab02SPeter Avalos } 3538029ab02SPeter Avalos } 3548029ab02SPeter Avalos 3559c82a63eSPeter Avalos /* Skip any / characters. This handles short paths that have 3569c82a63eSPeter Avalos * additional / termination. This also handles the case where 3579c82a63eSPeter Avalos * the logic above stops in the middle of a duplicate // 3589c82a63eSPeter Avalos * sequence (which would otherwise get converted to an 3599c82a63eSPeter Avalos * absolute path). */ 3609c82a63eSPeter Avalos for (;;) { 3619c82a63eSPeter Avalos switch (*p) { 3629c82a63eSPeter Avalos case '/': 3639c82a63eSPeter Avalos #if defined(_WIN32) && !defined(__CYGWIN__) 3649c82a63eSPeter Avalos case '\\': /* Support \ path sep on Windows ONLY. */ 3659c82a63eSPeter Avalos #endif 3669c82a63eSPeter Avalos ++p; 3679c82a63eSPeter Avalos break; 3689c82a63eSPeter Avalos case '\0': 3698029ab02SPeter Avalos return (NULL); 3709c82a63eSPeter Avalos default: 3719c82a63eSPeter Avalos return (p); 3729c82a63eSPeter Avalos } 3739c82a63eSPeter Avalos } 3748029ab02SPeter Avalos } 3758029ab02SPeter Avalos 376*6b384f39SPeter Avalos static void 377*6b384f39SPeter Avalos warn_strip_leading_char(struct bsdtar *bsdtar, const char *c) 37860b4ad09SPeter Avalos { 379*6b384f39SPeter Avalos if (!bsdtar->warned_lead_slash) { 380*6b384f39SPeter Avalos lafe_warnc(0, 381*6b384f39SPeter Avalos "Removing leading '%c' from member names", 382*6b384f39SPeter Avalos c[0]); 383*6b384f39SPeter Avalos bsdtar->warned_lead_slash = 1; 3848029ab02SPeter Avalos } 3858029ab02SPeter Avalos } 3868029ab02SPeter Avalos 387*6b384f39SPeter Avalos static void 388*6b384f39SPeter Avalos warn_strip_drive_letter(struct bsdtar *bsdtar) 389*6b384f39SPeter Avalos { 390*6b384f39SPeter Avalos if (!bsdtar->warned_lead_slash) { 391*6b384f39SPeter Avalos lafe_warnc(0, 392*6b384f39SPeter Avalos "Removing leading drive letter from " 393*6b384f39SPeter Avalos "member names"); 394*6b384f39SPeter Avalos bsdtar->warned_lead_slash = 1; 395*6b384f39SPeter Avalos } 396*6b384f39SPeter Avalos } 397*6b384f39SPeter Avalos 398*6b384f39SPeter Avalos /* 399*6b384f39SPeter Avalos * Convert absolute path to non-absolute path by skipping leading 400*6b384f39SPeter Avalos * absolute path prefixes. 401*6b384f39SPeter Avalos */ 402*6b384f39SPeter Avalos static const char* 403*6b384f39SPeter Avalos strip_absolute_path(struct bsdtar *bsdtar, const char *p) 404*6b384f39SPeter Avalos { 405*6b384f39SPeter Avalos const char *rp; 4068029ab02SPeter Avalos 4078029ab02SPeter Avalos /* Remove leading "//./" or "//?/" or "//?/UNC/" 4088029ab02SPeter Avalos * (absolute path prefixes used by Windows API) */ 4098029ab02SPeter Avalos if ((p[0] == '/' || p[0] == '\\') && 4108029ab02SPeter Avalos (p[1] == '/' || p[1] == '\\') && 4118029ab02SPeter Avalos (p[2] == '.' || p[2] == '?') && 4128029ab02SPeter Avalos (p[3] == '/' || p[3] == '\\')) 4138029ab02SPeter Avalos { 4148029ab02SPeter Avalos if (p[2] == '?' && 4158029ab02SPeter Avalos (p[4] == 'U' || p[4] == 'u') && 4168029ab02SPeter Avalos (p[5] == 'N' || p[5] == 'n') && 4178029ab02SPeter Avalos (p[6] == 'C' || p[6] == 'c') && 4188029ab02SPeter Avalos (p[7] == '/' || p[7] == '\\')) 4198029ab02SPeter Avalos p += 8; 4208029ab02SPeter Avalos else 4218029ab02SPeter Avalos p += 4; 422*6b384f39SPeter Avalos warn_strip_drive_letter(bsdtar); 4238029ab02SPeter Avalos } 424*6b384f39SPeter Avalos 425*6b384f39SPeter Avalos /* Remove multiple leading slashes and Windows drive letters. */ 4268029ab02SPeter Avalos do { 4278029ab02SPeter Avalos rp = p; 4288029ab02SPeter Avalos if (((p[0] >= 'a' && p[0] <= 'z') || 4298029ab02SPeter Avalos (p[0] >= 'A' && p[0] <= 'Z')) && 4308029ab02SPeter Avalos p[1] == ':') { 4318029ab02SPeter Avalos p += 2; 432*6b384f39SPeter Avalos warn_strip_drive_letter(bsdtar); 4338029ab02SPeter Avalos } 434*6b384f39SPeter Avalos 435*6b384f39SPeter Avalos /* Remove leading "/../", "/./", "//", etc. */ 4368029ab02SPeter Avalos while (p[0] == '/' || p[0] == '\\') { 437*6b384f39SPeter Avalos if (p[1] == '.' && 438*6b384f39SPeter Avalos p[2] == '.' && 4398029ab02SPeter Avalos (p[3] == '/' || p[3] == '\\')) { 440*6b384f39SPeter Avalos p += 3; /* Remove "/..", leave "/" for next pass. */ 441*6b384f39SPeter Avalos } else if (p[1] == '.' && 442*6b384f39SPeter Avalos (p[2] == '/' || p[2] == '\\')) { 443*6b384f39SPeter Avalos p += 2; /* Remove "/.", leave "/" for next pass. */ 4448029ab02SPeter Avalos } else 4458029ab02SPeter Avalos p += 1; /* Remove "/". */ 446*6b384f39SPeter Avalos warn_strip_leading_char(bsdtar, rp); 4478029ab02SPeter Avalos } 4488029ab02SPeter Avalos } while (rp != p); 4498029ab02SPeter Avalos 450*6b384f39SPeter Avalos return (p); 4518029ab02SPeter Avalos } 4528029ab02SPeter Avalos 453*6b384f39SPeter Avalos /* 454*6b384f39SPeter Avalos * Handle --strip-components and any future path-rewriting options. 455*6b384f39SPeter Avalos * Returns non-zero if the pathname should not be extracted. 456*6b384f39SPeter Avalos * 457*6b384f39SPeter Avalos * Note: The rewrites are applied uniformly to pathnames and hardlink 458*6b384f39SPeter Avalos * names but not to symlink bodies. This is deliberate: Symlink 459*6b384f39SPeter Avalos * bodies are not necessarily filenames. Even when they are, they 460*6b384f39SPeter Avalos * need to be interpreted relative to the directory containing them, 461*6b384f39SPeter Avalos * so simple rewrites like this are rarely appropriate. 462*6b384f39SPeter Avalos * 463*6b384f39SPeter Avalos * TODO: Support pax-style regex path rewrites. 464*6b384f39SPeter Avalos */ 465*6b384f39SPeter Avalos int 466*6b384f39SPeter Avalos edit_pathname(struct bsdtar *bsdtar, struct archive_entry *entry) 467*6b384f39SPeter Avalos { 468*6b384f39SPeter Avalos const char *name = archive_entry_pathname(entry); 469*6b384f39SPeter Avalos const char *original_name = name; 470*6b384f39SPeter Avalos const char *hardlinkname = archive_entry_hardlink(entry); 471*6b384f39SPeter Avalos const char *original_hardlinkname = hardlinkname; 472*6b384f39SPeter Avalos #if defined(HAVE_REGEX_H) || defined(HAVE_PCREPOSIX_H) 473*6b384f39SPeter Avalos char *subst_name; 474*6b384f39SPeter Avalos int r; 475*6b384f39SPeter Avalos 476*6b384f39SPeter Avalos /* Apply user-specified substitution to pathname. */ 477*6b384f39SPeter Avalos r = apply_substitution(bsdtar, name, &subst_name, 0, 0); 478*6b384f39SPeter Avalos if (r == -1) { 479*6b384f39SPeter Avalos lafe_warnc(0, "Invalid substitution, skipping entry"); 480*6b384f39SPeter Avalos return 1; 481*6b384f39SPeter Avalos } 482*6b384f39SPeter Avalos if (r == 1) { 483*6b384f39SPeter Avalos archive_entry_copy_pathname(entry, subst_name); 484*6b384f39SPeter Avalos if (*subst_name == '\0') { 485*6b384f39SPeter Avalos free(subst_name); 486*6b384f39SPeter Avalos return -1; 487*6b384f39SPeter Avalos } else 488*6b384f39SPeter Avalos free(subst_name); 489*6b384f39SPeter Avalos name = archive_entry_pathname(entry); 490*6b384f39SPeter Avalos original_name = name; 491*6b384f39SPeter Avalos } 492*6b384f39SPeter Avalos 493*6b384f39SPeter Avalos /* Apply user-specified substitution to hardlink target. */ 494*6b384f39SPeter Avalos if (hardlinkname != NULL) { 495*6b384f39SPeter Avalos r = apply_substitution(bsdtar, hardlinkname, &subst_name, 0, 1); 496*6b384f39SPeter Avalos if (r == -1) { 497*6b384f39SPeter Avalos lafe_warnc(0, "Invalid substitution, skipping entry"); 498*6b384f39SPeter Avalos return 1; 499*6b384f39SPeter Avalos } 500*6b384f39SPeter Avalos if (r == 1) { 501*6b384f39SPeter Avalos archive_entry_copy_hardlink(entry, subst_name); 502*6b384f39SPeter Avalos free(subst_name); 503*6b384f39SPeter Avalos } 504*6b384f39SPeter Avalos hardlinkname = archive_entry_hardlink(entry); 505*6b384f39SPeter Avalos original_hardlinkname = hardlinkname; 506*6b384f39SPeter Avalos } 507*6b384f39SPeter Avalos 508*6b384f39SPeter Avalos /* Apply user-specified substitution to symlink body. */ 509*6b384f39SPeter Avalos if (archive_entry_symlink(entry) != NULL) { 510*6b384f39SPeter Avalos r = apply_substitution(bsdtar, archive_entry_symlink(entry), &subst_name, 1, 0); 511*6b384f39SPeter Avalos if (r == -1) { 512*6b384f39SPeter Avalos lafe_warnc(0, "Invalid substitution, skipping entry"); 513*6b384f39SPeter Avalos return 1; 514*6b384f39SPeter Avalos } 515*6b384f39SPeter Avalos if (r == 1) { 516*6b384f39SPeter Avalos archive_entry_copy_symlink(entry, subst_name); 517*6b384f39SPeter Avalos free(subst_name); 518*6b384f39SPeter Avalos } 519*6b384f39SPeter Avalos } 520*6b384f39SPeter Avalos #endif 521*6b384f39SPeter Avalos 522*6b384f39SPeter Avalos /* Strip leading dir names as per --strip-components option. */ 523*6b384f39SPeter Avalos if (bsdtar->strip_components > 0) { 524*6b384f39SPeter Avalos name = strip_components(name, bsdtar->strip_components); 525*6b384f39SPeter Avalos if (name == NULL) 526*6b384f39SPeter Avalos return (1); 527*6b384f39SPeter Avalos 528*6b384f39SPeter Avalos if (hardlinkname != NULL) { 529*6b384f39SPeter Avalos hardlinkname = strip_components(hardlinkname, 530*6b384f39SPeter Avalos bsdtar->strip_components); 531*6b384f39SPeter Avalos if (hardlinkname == NULL) 532*6b384f39SPeter Avalos return (1); 533*6b384f39SPeter Avalos } 534*6b384f39SPeter Avalos } 535*6b384f39SPeter Avalos 536*6b384f39SPeter Avalos if (!bsdtar->option_absolute_paths) { 537*6b384f39SPeter Avalos /* By default, don't write or restore absolute pathnames. */ 538*6b384f39SPeter Avalos name = strip_absolute_path(bsdtar, name); 539*6b384f39SPeter Avalos if (*name == '\0') 5408029ab02SPeter Avalos name = "."; 541*6b384f39SPeter Avalos 542*6b384f39SPeter Avalos if (hardlinkname != NULL) { 543*6b384f39SPeter Avalos hardlinkname = strip_absolute_path(bsdtar, hardlinkname); 544*6b384f39SPeter Avalos if (*hardlinkname == '\0') 545*6b384f39SPeter Avalos return (1); 546*6b384f39SPeter Avalos } 5478029ab02SPeter Avalos } else { 54860b4ad09SPeter Avalos /* Strip redundant leading '/' characters. */ 54960b4ad09SPeter Avalos while (name[0] == '/' && name[1] == '/') 55060b4ad09SPeter Avalos name++; 55160b4ad09SPeter Avalos } 55260b4ad09SPeter Avalos 553*6b384f39SPeter Avalos /* Replace name in archive_entry. */ 554*6b384f39SPeter Avalos if (name != original_name) { 555*6b384f39SPeter Avalos archive_entry_copy_pathname(entry, name); 556*6b384f39SPeter Avalos } 557*6b384f39SPeter Avalos if (hardlinkname != original_hardlinkname) { 558*6b384f39SPeter Avalos archive_entry_copy_hardlink(entry, hardlinkname); 55960b4ad09SPeter Avalos } 56060b4ad09SPeter Avalos return (0); 56160b4ad09SPeter Avalos } 56260b4ad09SPeter Avalos 56360b4ad09SPeter Avalos /* 5649c82a63eSPeter Avalos * It would be nice to just use printf() for formatting large numbers, 5659c82a63eSPeter Avalos * but the compatibility problems are quite a headache. Hence the 5669c82a63eSPeter Avalos * following simple utility function. 5679c82a63eSPeter Avalos */ 5689c82a63eSPeter Avalos const char * 5699c82a63eSPeter Avalos tar_i64toa(int64_t n0) 5709c82a63eSPeter Avalos { 5719c82a63eSPeter Avalos static char buff[24]; 572c09f92d2SPeter Avalos uint64_t n = n0 < 0 ? -n0 : n0; 5739c82a63eSPeter Avalos char *p = buff + sizeof(buff); 5749c82a63eSPeter Avalos 5759c82a63eSPeter Avalos *--p = '\0'; 5769c82a63eSPeter Avalos do { 5779c82a63eSPeter Avalos *--p = '0' + (int)(n % 10); 578c09f92d2SPeter Avalos } while (n /= 10); 5799c82a63eSPeter Avalos if (n0 < 0) 5809c82a63eSPeter Avalos *--p = '-'; 5819c82a63eSPeter Avalos return p; 5829c82a63eSPeter Avalos } 5839c82a63eSPeter Avalos 5849c82a63eSPeter Avalos /* 58560b4ad09SPeter Avalos * Like strcmp(), but try to be a little more aware of the fact that 58660b4ad09SPeter Avalos * we're comparing two paths. Right now, it just handles leading 58760b4ad09SPeter Avalos * "./" and trailing '/' specially, so that "a/b/" == "./a/b" 58860b4ad09SPeter Avalos * 58960b4ad09SPeter Avalos * TODO: Make this better, so that "./a//b/./c/" == "a/b/c" 59060b4ad09SPeter Avalos * TODO: After this works, push it down into libarchive. 59160b4ad09SPeter Avalos * TODO: Publish the path normalization routines in libarchive so 59260b4ad09SPeter Avalos * that bsdtar can normalize paths and use fast strcmp() instead 59360b4ad09SPeter Avalos * of this. 5949c82a63eSPeter Avalos * 5959c82a63eSPeter Avalos * Note: This is currently only used within write.c, so should 5969c82a63eSPeter Avalos * not handle \ path separators. 59760b4ad09SPeter Avalos */ 59860b4ad09SPeter Avalos 59960b4ad09SPeter Avalos int 60060b4ad09SPeter Avalos pathcmp(const char *a, const char *b) 60160b4ad09SPeter Avalos { 60260b4ad09SPeter Avalos /* Skip leading './' */ 60360b4ad09SPeter Avalos if (a[0] == '.' && a[1] == '/' && a[2] != '\0') 60460b4ad09SPeter Avalos a += 2; 60560b4ad09SPeter Avalos if (b[0] == '.' && b[1] == '/' && b[2] != '\0') 60660b4ad09SPeter Avalos b += 2; 60760b4ad09SPeter Avalos /* Find the first difference, or return (0) if none. */ 60860b4ad09SPeter Avalos while (*a == *b) { 60960b4ad09SPeter Avalos if (*a == '\0') 61060b4ad09SPeter Avalos return (0); 61160b4ad09SPeter Avalos a++; 61260b4ad09SPeter Avalos b++; 61360b4ad09SPeter Avalos } 61460b4ad09SPeter Avalos /* 61560b4ad09SPeter Avalos * If one ends in '/' and the other one doesn't, 61660b4ad09SPeter Avalos * they're the same. 61760b4ad09SPeter Avalos */ 61860b4ad09SPeter Avalos if (a[0] == '/' && a[1] == '\0' && b[0] == '\0') 61960b4ad09SPeter Avalos return (0); 62060b4ad09SPeter Avalos if (a[0] == '\0' && b[0] == '/' && b[1] == '\0') 62160b4ad09SPeter Avalos return (0); 62260b4ad09SPeter Avalos /* They're really different, return the correct sign. */ 62360b4ad09SPeter Avalos return (*(const unsigned char *)a - *(const unsigned char *)b); 62460b4ad09SPeter Avalos } 625*6b384f39SPeter Avalos 626*6b384f39SPeter Avalos #define PPBUFF_SIZE 1024 627*6b384f39SPeter Avalos const char * 628*6b384f39SPeter Avalos passphrase_callback(struct archive *a, void *_client_data) 629*6b384f39SPeter Avalos { 630*6b384f39SPeter Avalos struct bsdtar *bsdtar = (struct bsdtar *)_client_data; 631*6b384f39SPeter Avalos (void)a; /* UNUSED */ 632*6b384f39SPeter Avalos 633*6b384f39SPeter Avalos if (bsdtar->ppbuff == NULL) { 634*6b384f39SPeter Avalos bsdtar->ppbuff = malloc(PPBUFF_SIZE); 635*6b384f39SPeter Avalos if (bsdtar->ppbuff == NULL) 636*6b384f39SPeter Avalos lafe_errc(1, errno, "Out of memory"); 637*6b384f39SPeter Avalos } 638*6b384f39SPeter Avalos return lafe_readpassphrase("Enter passphrase:", 639*6b384f39SPeter Avalos bsdtar->ppbuff, PPBUFF_SIZE); 640*6b384f39SPeter Avalos } 641*6b384f39SPeter Avalos 642*6b384f39SPeter Avalos void 643*6b384f39SPeter Avalos passphrase_free(char *ppbuff) 644*6b384f39SPeter Avalos { 645*6b384f39SPeter Avalos if (ppbuff != NULL) { 646*6b384f39SPeter Avalos memset(ppbuff, 0, PPBUFF_SIZE); 647*6b384f39SPeter Avalos free(ppbuff); 648*6b384f39SPeter Avalos } 649*6b384f39SPeter Avalos } 650*6b384f39SPeter Avalos 651*6b384f39SPeter Avalos /* 652*6b384f39SPeter Avalos * Display information about the current file. 653*6b384f39SPeter Avalos * 654*6b384f39SPeter Avalos * The format here roughly duplicates the output of 'ls -l'. 655*6b384f39SPeter Avalos * This is based on SUSv2, where 'tar tv' is documented as 656*6b384f39SPeter Avalos * listing additional information in an "unspecified format," 657*6b384f39SPeter Avalos * and 'pax -l' is documented as using the same format as 'ls -l'. 658*6b384f39SPeter Avalos */ 659*6b384f39SPeter Avalos void 660*6b384f39SPeter Avalos list_item_verbose(struct bsdtar *bsdtar, FILE *out, struct archive_entry *entry) 661*6b384f39SPeter Avalos { 662*6b384f39SPeter Avalos char tmp[100]; 663*6b384f39SPeter Avalos size_t w; 664*6b384f39SPeter Avalos const char *p; 665*6b384f39SPeter Avalos const char *fmt; 666*6b384f39SPeter Avalos time_t tim; 667*6b384f39SPeter Avalos static time_t now; 668*6b384f39SPeter Avalos 669*6b384f39SPeter Avalos /* 670*6b384f39SPeter Avalos * We avoid collecting the entire list in memory at once by 671*6b384f39SPeter Avalos * listing things as we see them. However, that also means we can't 672*6b384f39SPeter Avalos * just pre-compute the field widths. Instead, we start with guesses 673*6b384f39SPeter Avalos * and just widen them as necessary. These numbers are completely 674*6b384f39SPeter Avalos * arbitrary. 675*6b384f39SPeter Avalos */ 676*6b384f39SPeter Avalos if (!bsdtar->u_width) { 677*6b384f39SPeter Avalos bsdtar->u_width = 6; 678*6b384f39SPeter Avalos bsdtar->gs_width = 13; 679*6b384f39SPeter Avalos } 680*6b384f39SPeter Avalos if (!now) 681*6b384f39SPeter Avalos time(&now); 682*6b384f39SPeter Avalos fprintf(out, "%s %d ", 683*6b384f39SPeter Avalos archive_entry_strmode(entry), 684*6b384f39SPeter Avalos archive_entry_nlink(entry)); 685*6b384f39SPeter Avalos 686*6b384f39SPeter Avalos /* Use uname if it's present, else uid. */ 687*6b384f39SPeter Avalos p = archive_entry_uname(entry); 688*6b384f39SPeter Avalos if ((p == NULL) || (*p == '\0')) { 689*6b384f39SPeter Avalos sprintf(tmp, "%lu ", 690*6b384f39SPeter Avalos (unsigned long)archive_entry_uid(entry)); 691*6b384f39SPeter Avalos p = tmp; 692*6b384f39SPeter Avalos } 693*6b384f39SPeter Avalos w = strlen(p); 694*6b384f39SPeter Avalos if (w > bsdtar->u_width) 695*6b384f39SPeter Avalos bsdtar->u_width = w; 696*6b384f39SPeter Avalos fprintf(out, "%-*s ", (int)bsdtar->u_width, p); 697*6b384f39SPeter Avalos 698*6b384f39SPeter Avalos /* Use gname if it's present, else gid. */ 699*6b384f39SPeter Avalos p = archive_entry_gname(entry); 700*6b384f39SPeter Avalos if (p != NULL && p[0] != '\0') { 701*6b384f39SPeter Avalos fprintf(out, "%s", p); 702*6b384f39SPeter Avalos w = strlen(p); 703*6b384f39SPeter Avalos } else { 704*6b384f39SPeter Avalos sprintf(tmp, "%lu", 705*6b384f39SPeter Avalos (unsigned long)archive_entry_gid(entry)); 706*6b384f39SPeter Avalos w = strlen(tmp); 707*6b384f39SPeter Avalos fprintf(out, "%s", tmp); 708*6b384f39SPeter Avalos } 709*6b384f39SPeter Avalos 710*6b384f39SPeter Avalos /* 711*6b384f39SPeter Avalos * Print device number or file size, right-aligned so as to make 712*6b384f39SPeter Avalos * total width of group and devnum/filesize fields be gs_width. 713*6b384f39SPeter Avalos * If gs_width is too small, grow it. 714*6b384f39SPeter Avalos */ 715*6b384f39SPeter Avalos if (archive_entry_filetype(entry) == AE_IFCHR 716*6b384f39SPeter Avalos || archive_entry_filetype(entry) == AE_IFBLK) { 717*6b384f39SPeter Avalos sprintf(tmp, "%lu,%lu", 718*6b384f39SPeter Avalos (unsigned long)archive_entry_rdevmajor(entry), 719*6b384f39SPeter Avalos (unsigned long)archive_entry_rdevminor(entry)); 720*6b384f39SPeter Avalos } else { 721*6b384f39SPeter Avalos strcpy(tmp, tar_i64toa(archive_entry_size(entry))); 722*6b384f39SPeter Avalos } 723*6b384f39SPeter Avalos if (w + strlen(tmp) >= bsdtar->gs_width) 724*6b384f39SPeter Avalos bsdtar->gs_width = w+strlen(tmp)+1; 725*6b384f39SPeter Avalos fprintf(out, "%*s", (int)(bsdtar->gs_width - w), tmp); 726*6b384f39SPeter Avalos 727*6b384f39SPeter Avalos /* Format the time using 'ls -l' conventions. */ 728*6b384f39SPeter Avalos tim = archive_entry_mtime(entry); 729*6b384f39SPeter Avalos #define HALF_YEAR (time_t)365 * 86400 / 2 730*6b384f39SPeter Avalos #if defined(_WIN32) && !defined(__CYGWIN__) 731*6b384f39SPeter Avalos #define DAY_FMT "%d" /* Windows' strftime function does not support %e format. */ 732*6b384f39SPeter Avalos #else 733*6b384f39SPeter Avalos #define DAY_FMT "%e" /* Day number without leading zeros */ 734*6b384f39SPeter Avalos #endif 735*6b384f39SPeter Avalos if (tim < now - HALF_YEAR || tim > now + HALF_YEAR) 736*6b384f39SPeter Avalos fmt = bsdtar->day_first ? DAY_FMT " %b %Y" : "%b " DAY_FMT " %Y"; 737*6b384f39SPeter Avalos else 738*6b384f39SPeter Avalos fmt = bsdtar->day_first ? DAY_FMT " %b %H:%M" : "%b " DAY_FMT " %H:%M"; 739*6b384f39SPeter Avalos strftime(tmp, sizeof(tmp), fmt, localtime(&tim)); 740*6b384f39SPeter Avalos fprintf(out, " %s ", tmp); 741*6b384f39SPeter Avalos safe_fprintf(out, "%s", archive_entry_pathname(entry)); 742*6b384f39SPeter Avalos 743*6b384f39SPeter Avalos /* Extra information for links. */ 744*6b384f39SPeter Avalos if (archive_entry_hardlink(entry)) /* Hard link */ 745*6b384f39SPeter Avalos safe_fprintf(out, " link to %s", 746*6b384f39SPeter Avalos archive_entry_hardlink(entry)); 747*6b384f39SPeter Avalos else if (archive_entry_symlink(entry)) /* Symbolic link */ 748*6b384f39SPeter Avalos safe_fprintf(out, " -> %s", archive_entry_symlink(entry)); 749*6b384f39SPeter Avalos } 750