static int
write_header(struct archive_write *a, struct archive_entry *entry)
{
int64_t ino;
struct cpio *cpio;
const char *p, *path;
int pathlength, ret, ret_final;
char h[c_header_size];
struct archive_string_conv *sconv;
struct archive_entry *entry_main;
size_t len;
int pad;
cpio = (struct cpio *)a->format_data;
ret_final = ARCHIVE_OK;
sconv = get_sconv(a);
#if defined(_WIN32) && !defined(__CYGWIN__)
/* Make sure the path separators in pahtname, hardlink and symlink
* are all slash '/', not the Windows path separator '\'. */
entry_main = __la_win_entry_in_posix_pathseparator(entry);
if (entry_main == NULL) {
archive_set_error(&a->archive, ENOMEM,
"Can't allocate ustar data");
return(ARCHIVE_FATAL);
}
if (entry != entry_main)
entry = entry_main;
else
entry_main = NULL;
#else
entry_main = NULL;
#endif
ret = archive_entry_pathname_l(entry, &path, &len, sconv);
if (ret != 0) {
if (errno == ENOMEM) {
archive_set_error(&a->archive, ENOMEM,
"Can't allocate memory for Pathname");
ret_final = ARCHIVE_FATAL;
goto exit_write_header;
}
archive_set_error(&a->archive, ARCHIVE_ERRNO_FILE_FORMAT,
"Can't translate pathname '%s' to %s",
archive_entry_pathname(entry),
archive_string_conversion_charset_name(sconv));
ret_final = ARCHIVE_WARN;
}
pathlength = (int)len + 1; /* Include trailing null. */
memset(h, 0, c_header_size);
format_hex(0x070701, h + c_magic_offset, c_magic_size);
format_hex(archive_entry_devmajor(entry), h + c_devmajor_offset,
c_devmajor_size);
format_hex(archive_entry_devminor(entry), h + c_devminor_offset,
c_devminor_size);
ino = archive_entry_ino64(entry);
if (ino > 0xffffffff) {
archive_set_error(&a->archive, ERANGE,
"large inode number truncated");
ret_final = ARCHIVE_WARN;
}
/* TODO: Set ret_final to ARCHIVE_WARN if any of these overflow. */
format_hex(ino & 0xffffffff, h + c_ino_offset, c_ino_size);
format_hex(archive_entry_mode(entry), h + c_mode_offset, c_mode_size);
format_hex(archive_entry_uid(entry), h + c_uid_offset, c_uid_size);
format_hex(archive_entry_gid(entry), h + c_gid_offset, c_gid_size);
format_hex(archive_entry_nlink(entry), h + c_nlink_offset, c_nlink_size);
if (archive_entry_filetype(entry) == AE_IFBLK
|| archive_entry_filetype(entry) == AE_IFCHR) {
format_hex(archive_entry_rdevmajor(entry), h + c_rdevmajor_offset, c_rdevmajor_size);
format_hex(archive_entry_rdevminor(entry), h + c_rdevminor_offset, c_rdevminor_size);
} else {
format_hex(0, h + c_rdevmajor_offset, c_rdevmajor_size);
format_hex(0, h + c_rdevminor_offset, c_rdevminor_size);
}
format_hex(archive_entry_mtime(entry), h + c_mtime_offset, c_mtime_size);
format_hex(pathlength, h + c_namesize_offset, c_namesize_size);
format_hex(0, h + c_checksum_offset, c_checksum_size);
/* Non-regular files don't store bodies. */
if (archive_entry_filetype(entry) != AE_IFREG)
archive_entry_set_size(entry, 0);
/* Symlinks get the link written as the body of the entry. */
ret = archive_entry_symlink_l(entry, &p, &len, sconv);
if (ret != 0) {
if (errno == ENOMEM) {
archive_set_error(&a->archive, ENOMEM,
"Can't allocate memory for Likname");
ret_final = ARCHIVE_FATAL;
goto exit_write_header;
}
archive_set_error(&a->archive, ARCHIVE_ERRNO_FILE_FORMAT,
"Can't translate linkname '%s' to %s",
archive_entry_symlink(entry),
archive_string_conversion_charset_name(sconv));
ret_final = ARCHIVE_WARN;
}
if (len > 0 && p != NULL && *p != '\0')
ret = format_hex(strlen(p), h + c_filesize_offset,
c_filesize_size);
else
ret = format_hex(archive_entry_size(entry),
h + c_filesize_offset, c_filesize_size);
if (ret) {
archive_set_error(&a->archive, ERANGE,
"File is too large for this format.");
ret_final = ARCHIVE_FAILED;
goto exit_write_header;
}
ret = __archive_write_output(a, h, c_header_size);
if (ret != ARCHIVE_OK) {
ret_final = ARCHIVE_FATAL;
goto exit_write_header;
}
/* Pad pathname to even length. */
ret = __archive_write_output(a, path, pathlength);
if (ret != ARCHIVE_OK) {
ret_final = ARCHIVE_FATAL;
goto exit_write_header;
}
pad = PAD4(pathlength + c_header_size);
if (pad) {
ret = __archive_write_output(a, "\0\0\0", pad);
if (ret != ARCHIVE_OK) {
ret_final = ARCHIVE_FATAL;
goto exit_write_header;
}
}
cpio->entry_bytes_remaining = archive_entry_size(entry);
cpio->padding = (int)PAD4(cpio->entry_bytes_remaining);
/* Write the symlink now. */
if (p != NULL && *p != '\0') {
ret = __archive_write_output(a, p, strlen(p));
if (ret != ARCHIVE_OK) {
ret_final = ARCHIVE_FATAL;
goto exit_write_header;
}
pad = PAD4(strlen(p));
ret = __archive_write_output(a, "\0\0\0", pad);
if (ret != ARCHIVE_OK) {
ret_final = ARCHIVE_FATAL;
goto exit_write_header;
}
}
exit_write_header:
if (entry_main)
archive_entry_free(entry_main);
return (ret_final);
}
/*
* Display information about the current file.
*
* The format here roughly duplicates the output of 'ls -l'.
* This is based on SUSv2, where 'tar tv' is documented as
* listing additional information in an "unspecified format,"
* and 'pax -l' is documented as using the same format as 'ls -l'.
*/
static void
list_item_verbose(struct cpio *cpio, struct archive_entry *entry)
{
char size[32];
char date[32];
char uids[16], gids[16];
const char *uname, *gname;
FILE *out = stdout;
const char *fmt;
time_t mtime;
static time_t now;
struct tm *tm;
if (!now)
time(&now);
if (cpio->option_numeric_uid_gid) {
/* Format numeric uid/gid for display. */
strcpy(uids, cpio_i64toa(archive_entry_uid(entry)));
uname = uids;
strcpy(gids, cpio_i64toa(archive_entry_gid(entry)));
gname = gids;
} else {
/* Use uname if it's present, else lookup name from uid. */
uname = archive_entry_uname(entry);
if (uname == NULL)
uname = lookup_uname(cpio, archive_entry_uid(entry));
/* Use gname if it's present, else lookup name from gid. */
gname = archive_entry_gname(entry);
if (gname == NULL)
gname = lookup_gname(cpio, archive_entry_gid(entry));
}
/* Print device number or file size. */
if (archive_entry_filetype(entry) == AE_IFCHR
|| archive_entry_filetype(entry) == AE_IFBLK) {
snprintf(size, sizeof(size), "%lu,%lu",
(unsigned long)archive_entry_rdevmajor(entry),
(unsigned long)archive_entry_rdevminor(entry));
} else {
strcpy(size, cpio_i64toa(archive_entry_size(entry)));
}
/* Format the time using 'ls -l' conventions. */
mtime = archive_entry_mtime(entry);
#if defined(_WIN32) && !defined(__CYGWIN__)
/* Windows' strftime function does not support %e format. */
if (mtime - now > 365*86400/2
|| mtime - now < -365*86400/2)
fmt = cpio->day_first ? "%d %b %Y" : "%b %d %Y";
else
fmt = cpio->day_first ? "%d %b %H:%M" : "%b %d %H:%M";
#else
if (abs(mtime - now) > (365/2)*86400)
fmt = cpio->day_first ? "%e %b %Y" : "%b %e %Y";
else
fmt = cpio->day_first ? "%e %b %H:%M" : "%b %e %H:%M";
#endif
tm = localtime(&mtime);
if (tm != NULL) {
strftime(date, sizeof(date), fmt, tm);
} else {
*date = '\0';
}
fprintf(out, "%s%3d %-8s %-8s %8s %12s %s",
archive_entry_strmode(entry),
archive_entry_nlink(entry),
uname, gname, size, date,
archive_entry_pathname(entry));
/* Extra information for links. */
if (archive_entry_hardlink(entry)) /* Hard link */
fprintf(out, " link to %s", archive_entry_hardlink(entry));
else if (archive_entry_symlink(entry)) /* Symbolic link */
fprintf(out, " -> %s", archive_entry_symlink(entry));
fprintf(out, "\n");
}
/*-
* The logic here for -C <dir> attempts to avoid
* chdir() as long as possible. For example:
* "-C /foo -C /bar file" needs chdir("/bar") but not chdir("/foo")
* "-C /foo -C bar file" needs chdir("/foo/bar")
* "-C /foo -C bar /file1" does not need chdir()
* "-C /foo -C bar /file1 file2" needs chdir("/foo/bar") before file2
*
* The only correct way to handle this is to record a "pending" chdir
* request and combine multiple requests intelligently until we
* need to process a non-absolute file. set_chdir() adds the new dir
* to the pending list; do_chdir() actually executes any pending chdir.
*
* This way, programs that build tar command lines don't have to worry
* about -C with non-existent directories; such requests will only
* fail if the directory must be accessed.
*
*/
void
set_chdir(struct bsdtar *bsdtar, const char *newdir)
{
#if defined(_WIN32) && !defined(__CYGWIN__)
if (newdir[0] == '/' || newdir[0] == '\\' ||
/* Detect this type, for example, "C:\" or "C:/" */
(((newdir[0] >= 'a' && newdir[0] <= 'z') ||
(newdir[0] >= 'A' && newdir[0] <= 'Z')) &&
newdir[1] == ':' && (newdir[2] == '/' || newdir[2] == '\\'))) {
#else
if (newdir[0] == '/') {
#endif
/* The -C /foo -C /bar case; dump first one. */
free(bsdtar->pending_chdir);
bsdtar->pending_chdir = NULL;
}
if (bsdtar->pending_chdir == NULL)
/* Easy case: no previously-saved dir. */
bsdtar->pending_chdir = strdup(newdir);
else {
/* The -C /foo -C bar case; concatenate */
char *old_pending = bsdtar->pending_chdir;
size_t old_len = strlen(old_pending);
bsdtar->pending_chdir = malloc(old_len + strlen(newdir) + 2);
if (old_pending[old_len - 1] == '/')
old_pending[old_len - 1] = '\0';
if (bsdtar->pending_chdir != NULL)
sprintf(bsdtar->pending_chdir, "%s/%s",
old_pending, newdir);
free(old_pending);
}
if (bsdtar->pending_chdir == NULL)
lafe_errc(1, errno, "No memory");
}
void
do_chdir(struct bsdtar *bsdtar)
{
if (bsdtar->pending_chdir == NULL)
return;
if (chdir(bsdtar->pending_chdir) != 0) {
lafe_errc(1, 0, "could not chdir to '%s'\n",
bsdtar->pending_chdir);
}
free(bsdtar->pending_chdir);
bsdtar->pending_chdir = NULL;
}
static const char *
strip_components(const char *p, int elements)
{
/* Skip as many elements as necessary. */
while (elements > 0) {
switch (*p++) {
case '/':
#if defined(_WIN32) && !defined(__CYGWIN__)
case '\\': /* Support \ path sep on Windows ONLY. */
#endif
elements--;
break;
case '\0':
/* Path is too short, skip it. */
return (NULL);
}
}
/* Skip any / characters. This handles short paths that have
* additional / termination. This also handles the case where
* the logic above stops in the middle of a duplicate //
* sequence (which would otherwise get converted to an
* absolute path). */
for (;;) {
switch (*p) {
case '/':
#if defined(_WIN32) && !defined(__CYGWIN__)
case '\\': /* Support \ path sep on Windows ONLY. */
#endif
++p;
break;
case '\0':
return (NULL);
default:
return (p);
}
}
}
static void
warn_strip_leading_char(struct bsdtar *bsdtar, const char *c)
{
if (!bsdtar->warned_lead_slash) {
lafe_warnc(0,
"Removing leading '%c' from member names",
c[0]);
bsdtar->warned_lead_slash = 1;
}
}
static void
warn_strip_drive_letter(struct bsdtar *bsdtar)
{
if (!bsdtar->warned_lead_slash) {
lafe_warnc(0,
"Removing leading drive letter from "
"member names");
bsdtar->warned_lead_slash = 1;
}
}
/*
* Convert absolute path to non-absolute path by skipping leading
* absolute path prefixes.
*/
static const char*
strip_absolute_path(struct bsdtar *bsdtar, const char *p)
{
const char *rp;
/* Remove leading "//./" or "//?/" or "//?/UNC/"
* (absolute path prefixes used by Windows API) */
if ((p[0] == '/' || p[0] == '\\') &&
(p[1] == '/' || p[1] == '\\') &&
(p[2] == '.' || p[2] == '?') &&
(p[3] == '/' || p[3] == '\\'))
{
if (p[2] == '?' &&
(p[4] == 'U' || p[4] == 'u') &&
(p[5] == 'N' || p[5] == 'n') &&
(p[6] == 'C' || p[6] == 'c') &&
(p[7] == '/' || p[7] == '\\'))
p += 8;
else
p += 4;
warn_strip_drive_letter(bsdtar);
}
/* Remove multiple leading slashes and Windows drive letters. */
do {
rp = p;
if (((p[0] >= 'a' && p[0] <= 'z') ||
(p[0] >= 'A' && p[0] <= 'Z')) &&
p[1] == ':') {
p += 2;
warn_strip_drive_letter(bsdtar);
}
/* Remove leading "/../", "/./", "//", etc. */
while (p[0] == '/' || p[0] == '\\') {
if (p[1] == '.' &&
p[2] == '.' &&
(p[3] == '/' || p[3] == '\\')) {
p += 3; /* Remove "/..", leave "/" for next pass. */
} else if (p[1] == '.' &&
(p[2] == '/' || p[2] == '\\')) {
p += 2; /* Remove "/.", leave "/" for next pass. */
} else
p += 1; /* Remove "/". */
warn_strip_leading_char(bsdtar, rp);
}
} while (rp != p);
return (p);
}
/*
* Handle --strip-components and any future path-rewriting options.
* Returns non-zero if the pathname should not be extracted.
*
* Note: The rewrites are applied uniformly to pathnames and hardlink
* names but not to symlink bodies. This is deliberate: Symlink
* bodies are not necessarily filenames. Even when they are, they
* need to be interpreted relative to the directory containing them,
* so simple rewrites like this are rarely appropriate.
*
* TODO: Support pax-style regex path rewrites.
*/
int
edit_pathname(struct bsdtar *bsdtar, struct archive_entry *entry)
{
const char *name = archive_entry_pathname(entry);
const char *original_name = name;
const char *hardlinkname = archive_entry_hardlink(entry);
const char *original_hardlinkname = hardlinkname;
#if defined(HAVE_REGEX_H) || defined(HAVE_PCREPOSIX_H)
char *subst_name;
int r;
/* Apply user-specified substitution to pathname. */
r = apply_substitution(bsdtar, name, &subst_name, 0, 0);
if (r == -1) {
lafe_warnc(0, "Invalid substitution, skipping entry");
return 1;
}
if (r == 1) {
archive_entry_copy_pathname(entry, subst_name);
if (*subst_name == '\0') {
free(subst_name);
return -1;
} else
free(subst_name);
name = archive_entry_pathname(entry);
original_name = name;
}
/* Apply user-specified substitution to hardlink target. */
if (hardlinkname != NULL) {
r = apply_substitution(bsdtar, hardlinkname, &subst_name, 0, 1);
if (r == -1) {
lafe_warnc(0, "Invalid substitution, skipping entry");
return 1;
}
if (r == 1) {
archive_entry_copy_hardlink(entry, subst_name);
free(subst_name);
}
hardlinkname = archive_entry_hardlink(entry);
original_hardlinkname = hardlinkname;
}
/* Apply user-specified substitution to symlink body. */
if (archive_entry_symlink(entry) != NULL) {
r = apply_substitution(bsdtar, archive_entry_symlink(entry), &subst_name, 1, 0);
if (r == -1) {
lafe_warnc(0, "Invalid substitution, skipping entry");
return 1;
}
if (r == 1) {
archive_entry_copy_symlink(entry, subst_name);
free(subst_name);
}
}
#endif
/* Strip leading dir names as per --strip-components option. */
if (bsdtar->strip_components > 0) {
name = strip_components(name, bsdtar->strip_components);
if (name == NULL)
return (1);
if (hardlinkname != NULL) {
hardlinkname = strip_components(hardlinkname,
bsdtar->strip_components);
if (hardlinkname == NULL)
return (1);
}
}
if (!bsdtar->option_absolute_paths) {
/* By default, don't write or restore absolute pathnames. */
name = strip_absolute_path(bsdtar, name);
if (*name == '\0')
name = ".";
if (hardlinkname != NULL) {
hardlinkname = strip_absolute_path(bsdtar, hardlinkname);
if (*hardlinkname == '\0')
return (1);
}
} else {
/* Strip redundant leading '/' characters. */
while (name[0] == '/' && name[1] == '/')
name++;
}
/* Replace name in archive_entry. */
if (name != original_name) {
archive_entry_copy_pathname(entry, name);
}
if (hardlinkname != original_hardlinkname) {
archive_entry_copy_hardlink(entry, hardlinkname);
}
return (0);
}
/*
* It would be nice to just use printf() for formatting large numbers,
* but the compatibility problems are quite a headache. Hence the
* following simple utility function.
*/
const char *
tar_i64toa(int64_t n0)
{
static char buff[24];
uint64_t n = n0 < 0 ? -n0 : n0;
char *p = buff + sizeof(buff);
*--p = '\0';
do {
*--p = '0' + (int)(n % 10);
} while (n /= 10);
if (n0 < 0)
*--p = '-';
return p;
}
/*
* Like strcmp(), but try to be a little more aware of the fact that
* we're comparing two paths. Right now, it just handles leading
* "./" and trailing '/' specially, so that "a/b/" == "./a/b"
*
* TODO: Make this better, so that "./a//b/./c/" == "a/b/c"
* TODO: After this works, push it down into libarchive.
* TODO: Publish the path normalization routines in libarchive so
* that bsdtar can normalize paths and use fast strcmp() instead
* of this.
*
* Note: This is currently only used within write.c, so should
* not handle \ path separators.
*/
int
pathcmp(const char *a, const char *b)
{
/* Skip leading './' */
if (a[0] == '.' && a[1] == '/' && a[2] != '\0')
a += 2;
if (b[0] == '.' && b[1] == '/' && b[2] != '\0')
b += 2;
/* Find the first difference, or return (0) if none. */
while (*a == *b) {
if (*a == '\0')
return (0);
a++;
b++;
}
/*
* If one ends in '/' and the other one doesn't,
* they're the same.
*/
if (a[0] == '/' && a[1] == '\0' && b[0] == '\0')
return (0);
if (a[0] == '\0' && b[0] == '/' && b[1] == '\0')
return (0);
/* They're really different, return the correct sign. */
return (*(const unsigned char *)a - *(const unsigned char *)b);
}
#define PPBUFF_SIZE 1024
const char *
passphrase_callback(struct archive *a, void *_client_data)
{
struct bsdtar *bsdtar = (struct bsdtar *)_client_data;
(void)a; /* UNUSED */
if (bsdtar->ppbuff == NULL) {
bsdtar->ppbuff = malloc(PPBUFF_SIZE);
if (bsdtar->ppbuff == NULL)
lafe_errc(1, errno, "Out of memory");
}
return lafe_readpassphrase("Enter passphrase:",
bsdtar->ppbuff, PPBUFF_SIZE);
}
void
passphrase_free(char *ppbuff)
{
if (ppbuff != NULL) {
memset(ppbuff, 0, PPBUFF_SIZE);
free(ppbuff);
}
}
/*
* Display information about the current file.
*
* The format here roughly duplicates the output of 'ls -l'.
* This is based on SUSv2, where 'tar tv' is documented as
* listing additional information in an "unspecified format,"
* and 'pax -l' is documented as using the same format as 'ls -l'.
*/
void
list_item_verbose(struct bsdtar *bsdtar, FILE *out, struct archive_entry *entry)
{
char tmp[100];
size_t w;
const char *p;
const char *fmt;
time_t tim;
static time_t now;
/*
* We avoid collecting the entire list in memory at once by
* listing things as we see them. However, that also means we can't
* just pre-compute the field widths. Instead, we start with guesses
* and just widen them as necessary. These numbers are completely
* arbitrary.
*/
if (!bsdtar->u_width) {
bsdtar->u_width = 6;
bsdtar->gs_width = 13;
}
if (!now)
time(&now);
fprintf(out, "%s %d ",
archive_entry_strmode(entry),
archive_entry_nlink(entry));
/* Use uname if it's present, else uid. */
p = archive_entry_uname(entry);
if ((p == NULL) || (*p == '\0')) {
sprintf(tmp, "%lu ",
(unsigned long)archive_entry_uid(entry));
p = tmp;
}
w = strlen(p);
if (w > bsdtar->u_width)
bsdtar->u_width = w;
fprintf(out, "%-*s ", (int)bsdtar->u_width, p);
/* Use gname if it's present, else gid. */
p = archive_entry_gname(entry);
if (p != NULL && p[0] != '\0') {
fprintf(out, "%s", p);
w = strlen(p);
} else {
sprintf(tmp, "%lu",
(unsigned long)archive_entry_gid(entry));
w = strlen(tmp);
fprintf(out, "%s", tmp);
}
/*
* Print device number or file size, right-aligned so as to make
* total width of group and devnum/filesize fields be gs_width.
* If gs_width is too small, grow it.
*/
if (archive_entry_filetype(entry) == AE_IFCHR
|| archive_entry_filetype(entry) == AE_IFBLK) {
sprintf(tmp, "%lu,%lu",
(unsigned long)archive_entry_rdevmajor(entry),
(unsigned long)archive_entry_rdevminor(entry));
} else {
strcpy(tmp, tar_i64toa(archive_entry_size(entry)));
}
if (w + strlen(tmp) >= bsdtar->gs_width)
bsdtar->gs_width = w+strlen(tmp)+1;
fprintf(out, "%*s", (int)(bsdtar->gs_width - w), tmp);
/* Format the time using 'ls -l' conventions. */
tim = archive_entry_mtime(entry);
#define HALF_YEAR (time_t)365 * 86400 / 2
#if defined(_WIN32) && !defined(__CYGWIN__)
#define DAY_FMT "%d" /* Windows' strftime function does not support %e format. */
#else
#define DAY_FMT "%e" /* Day number without leading zeros */
#endif
if (tim < now - HALF_YEAR || tim > now + HALF_YEAR)
fmt = bsdtar->day_first ? DAY_FMT " %b %Y" : "%b " DAY_FMT " %Y";
else
fmt = bsdtar->day_first ? DAY_FMT " %b %H:%M" : "%b " DAY_FMT " %H:%M";
strftime(tmp, sizeof(tmp), fmt, localtime(&tim));
fprintf(out, " %s ", tmp);
safe_fprintf(out, "%s", archive_entry_pathname(entry));
/* Extra information for links. */
if (archive_entry_hardlink(entry)) /* Hard link */
safe_fprintf(out, " link to %s",
archive_entry_hardlink(entry));
else if (archive_entry_symlink(entry)) /* Symbolic link */
safe_fprintf(out, " -> %s", archive_entry_symlink(entry));
}
static int
archive_write_newc_header(struct archive_write *a, struct archive_entry *entry)
{
struct cpio *cpio;
const char *p, *path;
int pathlength, ret;
struct cpio_header_newc h;
int pad;
cpio = (struct cpio *)a->format_data;
ret = 0;
path = archive_entry_pathname(entry);
pathlength = strlen(path) + 1; /* Include trailing null. */
memset(&h, 0, sizeof(h));
format_hex(0x070701, &h.c_magic, sizeof(h.c_magic));
format_hex(archive_entry_devmajor(entry), &h.c_devmajor, sizeof(h.c_devmajor));
format_hex(archive_entry_devminor(entry), &h.c_devminor, sizeof(h.c_devminor));
if (archive_entry_ino64(entry) > 0xffffffff) {
archive_set_error(&a->archive, ERANGE, "large inode number truncated");
ret = ARCHIVE_WARN;
}
format_hex(archive_entry_ino64(entry) & 0xffffffff, &h.c_ino, sizeof(h.c_ino));
format_hex(archive_entry_mode(entry), &h.c_mode, sizeof(h.c_mode));
format_hex(archive_entry_uid(entry), &h.c_uid, sizeof(h.c_uid));
format_hex(archive_entry_gid(entry), &h.c_gid, sizeof(h.c_gid));
format_hex(archive_entry_nlink(entry), &h.c_nlink, sizeof(h.c_nlink));
if (archive_entry_filetype(entry) == AE_IFBLK
|| archive_entry_filetype(entry) == AE_IFCHR) {
format_hex(archive_entry_rdevmajor(entry), &h.c_rdevmajor, sizeof(h.c_rdevmajor));
format_hex(archive_entry_rdevminor(entry), &h.c_rdevminor, sizeof(h.c_rdevminor));
} else {
format_hex(0, &h.c_rdevmajor, sizeof(h.c_rdevmajor));
format_hex(0, &h.c_rdevminor, sizeof(h.c_rdevminor));
}
format_hex(archive_entry_mtime(entry), &h.c_mtime, sizeof(h.c_mtime));
format_hex(pathlength, &h.c_namesize, sizeof(h.c_namesize));
format_hex(0, &h.c_checksum, sizeof(h.c_checksum));
/* Non-regular files don't store bodies. */
if (archive_entry_filetype(entry) != AE_IFREG)
archive_entry_set_size(entry, 0);
/* Symlinks get the link written as the body of the entry. */
p = archive_entry_symlink(entry);
if (p != NULL && *p != '\0')
format_hex(strlen(p), &h.c_filesize, sizeof(h.c_filesize));
else
format_hex(archive_entry_size(entry),
&h.c_filesize, sizeof(h.c_filesize));
ret = (a->compressor.write)(a, &h, sizeof(h));
if (ret != ARCHIVE_OK)
return (ARCHIVE_FATAL);
/* Pad pathname to even length. */
ret = (a->compressor.write)(a, path, pathlength);
if (ret != ARCHIVE_OK)
return (ARCHIVE_FATAL);
pad = PAD4(pathlength + sizeof(struct cpio_header_newc));
if (pad)
ret = (a->compressor.write)(a, "\0\0\0", pad);
if (ret != ARCHIVE_OK)
return (ARCHIVE_FATAL);
cpio->entry_bytes_remaining = archive_entry_size(entry);
cpio->padding = PAD4(cpio->entry_bytes_remaining);
/* Write the symlink now. */
if (p != NULL && *p != '\0') {
ret = (a->compressor.write)(a, p, strlen(p));
if (ret != ARCHIVE_OK)
return (ARCHIVE_FATAL);
pad = PAD4(strlen(p));
ret = (a->compressor.write)(a, "\0\0\0", pad);
}
return (ret);
}
/*
* Display information about the current file.
*
* The format here roughly duplicates the output of 'ls -l'.
* This is based on SUSv2, where 'tar tv' is documented as
* listing additional information in an "unspecified format,"
* and 'pax -l' is documented as using the same format as 'ls -l'.
*/
static void
list_item_verbose(struct bsdtar *bsdtar, FILE *out, struct archive_entry *entry)
{
char tmp[100];
size_t w;
const char *p;
const char *fmt;
time_t tim;
static time_t now;
/*
* We avoid collecting the entire list in memory at once by
* listing things as we see them. However, that also means we can't
* just pre-compute the field widths. Instead, we start with guesses
* and just widen them as necessary. These numbers are completely
* arbitrary.
*/
if (!bsdtar->u_width) {
bsdtar->u_width = 6;
bsdtar->gs_width = 13;
}
if (!now)
time(&now);
fprintf(out, "%s %d ",
archive_entry_strmode(entry),
archive_entry_nlink(entry));
/* Use uname if it's present, else uid. */
p = archive_entry_uname(entry);
if ((p == NULL) || (*p == '\0')) {
sprintf(tmp, "%lu ",
(unsigned long)archive_entry_uid(entry));
p = tmp;
}
w = strlen(p);
if (w > bsdtar->u_width)
bsdtar->u_width = w;
fprintf(out, "%-*s ", (int)bsdtar->u_width, p);
/* Use gname if it's present, else gid. */
p = archive_entry_gname(entry);
if (p != NULL && p[0] != '\0') {
fprintf(out, "%s", p);
w = strlen(p);
} else {
sprintf(tmp, "%lu",
(unsigned long)archive_entry_gid(entry));
w = strlen(tmp);
fprintf(out, "%s", tmp);
}
/*
* Print device number or file size, right-aligned so as to make
* total width of group and devnum/filesize fields be gs_width.
* If gs_width is too small, grow it.
*/
if (archive_entry_filetype(entry) == AE_IFCHR
|| archive_entry_filetype(entry) == AE_IFBLK) {
sprintf(tmp, "%lu,%lu",
(unsigned long)archive_entry_rdevmajor(entry),
(unsigned long)archive_entry_rdevminor(entry));
} else {
strcpy(tmp, tar_i64toa(archive_entry_size(entry)));
}
if (w + strlen(tmp) >= bsdtar->gs_width)
bsdtar->gs_width = w+strlen(tmp)+1;
fprintf(out, "%*s", (int)(bsdtar->gs_width - w), tmp);
/* Format the time using 'ls -l' conventions. */
tim = archive_entry_mtime(entry);
#define HALF_YEAR (time_t)365 * 86400 / 2
#if defined(_WIN32) && !defined(__CYGWIN__)
#define DAY_FMT "%d" /* Windows' strftime function does not support %e format. */
#else
#define DAY_FMT "%e" /* Day number without leading zeros */
#endif
if (tim < now - HALF_YEAR || tim > now + HALF_YEAR)
fmt = bsdtar->day_first ? DAY_FMT " %b %Y" : "%b " DAY_FMT " %Y";
else
fmt = bsdtar->day_first ? DAY_FMT " %b %H:%M" : "%b " DAY_FMT " %H:%M";
strftime(tmp, sizeof(tmp), fmt, localtime(&tim));
fprintf(out, " %s ", tmp);
safe_fprintf(out, "%s", archive_entry_pathname(entry));
/* Extra information for links. */
if (archive_entry_hardlink(entry)) /* Hard link */
safe_fprintf(out, " link to %s",
archive_entry_hardlink(entry));
else if (archive_entry_symlink(entry)) /* Symbolic link */
safe_fprintf(out, " -> %s", archive_entry_symlink(entry));
}
static int
archive_write_shar_header(struct archive_write *a, struct archive_entry *entry)
{
const char *linkname;
const char *name;
char *p, *pp;
struct shar *shar;
shar = (struct shar *)a->format_data;
if (!shar->wrote_header) {
archive_strcat(&shar->work, "#!/bin/sh\n");
archive_strcat(&shar->work, "# This is a shell archive\n");
shar->wrote_header = 1;
}
/* Save the entry for the closing. */
if (shar->entry)
archive_entry_free(shar->entry);
shar->entry = archive_entry_clone(entry);
name = archive_entry_pathname(entry);
/* Handle some preparatory issues. */
switch(archive_entry_filetype(entry)) {
case AE_IFREG:
/* Only regular files have non-zero size. */
break;
case AE_IFDIR:
archive_entry_set_size(entry, 0);
/* Don't bother trying to recreate '.' */
if (strcmp(name, ".") == 0 || strcmp(name, "./") == 0)
return (ARCHIVE_OK);
break;
case AE_IFIFO:
case AE_IFCHR:
case AE_IFBLK:
/* All other file types have zero size in the archive. */
archive_entry_set_size(entry, 0);
break;
default:
archive_entry_set_size(entry, 0);
if (archive_entry_hardlink(entry) == NULL &&
archive_entry_symlink(entry) == NULL) {
archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
"shar format cannot archive this");
return (ARCHIVE_WARN);
}
}
archive_string_empty(&shar->quoted_name);
shar_quote(&shar->quoted_name, name, 1);
/* Stock preparation for all file types. */
archive_string_sprintf(&shar->work, "echo x %s\n", shar->quoted_name.s);
if (archive_entry_filetype(entry) != AE_IFDIR) {
/* Try to create the dir. */
p = strdup(name);
pp = strrchr(p, '/');
/* If there is a / character, try to create the dir. */
if (pp != NULL) {
*pp = '\0';
/* Try to avoid a lot of redundant mkdir commands. */
if (strcmp(p, ".") == 0) {
/* Don't try to "mkdir ." */
free(p);
} else if (shar->last_dir == NULL) {
archive_strcat(&shar->work, "mkdir -p ");
shar_quote(&shar->work, p, 1);
archive_strcat(&shar->work,
" > /dev/null 2>&1\n");
shar->last_dir = p;
} else if (strcmp(p, shar->last_dir) == 0) {
/* We've already created this exact dir. */
free(p);
} else if (strlen(p) < strlen(shar->last_dir) &&
strncmp(p, shar->last_dir, strlen(p)) == 0) {
/* We've already created a subdir. */
free(p);
} else {
archive_strcat(&shar->work, "mkdir -p ");
shar_quote(&shar->work, p, 1);
archive_strcat(&shar->work,
" > /dev/null 2>&1\n");
shar->last_dir = p;
}
} else {
free(p);
}
}
/* Handle file-type specific issues. */
shar->has_data = 0;
if ((linkname = archive_entry_hardlink(entry)) != NULL) {
archive_strcat(&shar->work, "ln -f ");
shar_quote(&shar->work, linkname, 1);
archive_string_sprintf(&shar->work, " %s\n",
shar->quoted_name.s);
} else if ((linkname = archive_entry_symlink(entry)) != NULL) {
archive_strcat(&shar->work, "ln -fs ");
shar_quote(&shar->work, linkname, 1);
archive_string_sprintf(&shar->work, " %s\n",
shar->quoted_name.s);
} else {
switch(archive_entry_filetype(entry)) {
case AE_IFREG:
if (archive_entry_size(entry) == 0) {
/* More portable than "touch." */
archive_string_sprintf(&shar->work,
"test -e \"%s\" || :> \"%s\"\n",
shar->quoted_name.s, shar->quoted_name.s);
} else {
if (shar->dump) {
unsigned int mode = archive_entry_mode(entry) & 0777;
archive_string_sprintf(&shar->work,
"uudecode -p > %s << 'SHAR_END'\n",
shar->quoted_name.s);
archive_string_sprintf(&shar->work,
"begin %o ", mode);
shar_quote(&shar->work, name, 0);
archive_strcat(&shar->work, "\n");
} else {
archive_string_sprintf(&shar->work,
"sed 's/^X//' > %s << 'SHAR_END'\n",
shar->quoted_name.s);
}
shar->has_data = 1;
shar->end_of_line = 1;
shar->outpos = 0;
}
break;
case AE_IFDIR:
archive_string_sprintf(&shar->work,
"mkdir -p %s > /dev/null 2>&1\n",
shar->quoted_name.s);
/* Record that we just created this directory. */
if (shar->last_dir != NULL)
free(shar->last_dir);
shar->last_dir = strdup(name);
/* Trim a trailing '/'. */
pp = strrchr(shar->last_dir, '/');
if (pp != NULL && pp[1] == '\0')
*pp = '\0';
/*
* TODO: Put dir name/mode on a list to be fixed
* up at end of archive.
*/
break;
case AE_IFIFO:
archive_string_sprintf(&shar->work,
"mkfifo %s\n", shar->quoted_name.s);
break;
case AE_IFCHR:
archive_string_sprintf(&shar->work,
"mknod %s c %ju %ju\n", shar->quoted_name.s,
(uintmax_t)archive_entry_rdevmajor(entry),
(uintmax_t)archive_entry_rdevminor(entry));
break;
case AE_IFBLK:
archive_string_sprintf(&shar->work,
"mknod %s b %ju %ju\n", shar->quoted_name.s,
(uintmax_t)archive_entry_rdevmajor(entry),
(uintmax_t)archive_entry_rdevminor(entry));
break;
default:
return (ARCHIVE_WARN);
}
}
return (ARCHIVE_OK);
}
static int
archive_format_gnutar_header(struct archive_write *a, char h[512],
struct archive_entry *entry, int tartype)
{
unsigned int checksum;
int i, ret;
size_t copy_length;
const char *p;
struct gnutar *gnutar;
gnutar = (struct gnutar *)a->format_data;
ret = 0;
/*
* The "template header" already includes the signature,
* various end-of-field markers, and other required elements.
*/
memcpy(h, &template_header, 512);
/*
* Because the block is already null-filled, and strings
* are allowed to exactly fill their destination (without null),
* I use memcpy(dest, src, strlen()) here a lot to copy strings.
*/
if (tartype == 'K' || tartype == 'L') {
p = archive_entry_pathname(entry);
copy_length = strlen(p);
} else {
p = gnutar->pathname;
copy_length = gnutar->pathname_length;
}
if (copy_length > GNUTAR_name_size)
copy_length = GNUTAR_name_size;
memcpy(h + GNUTAR_name_offset, p, copy_length);
if ((copy_length = gnutar->linkname_length) > 0) {
if (copy_length > GNUTAR_linkname_size)
copy_length = GNUTAR_linkname_size;
memcpy(h + GNUTAR_linkname_offset, gnutar->linkname,
copy_length);
}
/* TODO: How does GNU tar handle unames longer than GNUTAR_uname_size? */
if (tartype == 'K' || tartype == 'L') {
p = archive_entry_uname(entry);
copy_length = strlen(p);
} else {
p = gnutar->uname;
copy_length = gnutar->uname_length;
}
if (copy_length > 0) {
if (copy_length > GNUTAR_uname_size)
copy_length = GNUTAR_uname_size;
memcpy(h + GNUTAR_uname_offset, p, copy_length);
}
/* TODO: How does GNU tar handle gnames longer than GNUTAR_gname_size? */
if (tartype == 'K' || tartype == 'L') {
p = archive_entry_gname(entry);
copy_length = strlen(p);
} else {
p = gnutar->gname;
copy_length = gnutar->gname_length;
}
if (copy_length > 0) {
if (strlen(p) > GNUTAR_gname_size)
copy_length = GNUTAR_gname_size;
memcpy(h + GNUTAR_gname_offset, p, copy_length);
}
/* By truncating the mode here, we ensure it always fits. */
format_octal(archive_entry_mode(entry) & 07777,
h + GNUTAR_mode_offset, GNUTAR_mode_size);
/* GNU tar supports base-256 here, so should never overflow. */
if (format_number(archive_entry_uid(entry), h + GNUTAR_uid_offset,
GNUTAR_uid_size, GNUTAR_uid_max_size)) {
archive_set_error(&a->archive, ERANGE,
"Numeric user ID %jd too large",
(intmax_t)archive_entry_uid(entry));
ret = ARCHIVE_FAILED;
}
/* GNU tar supports base-256 here, so should never overflow. */
if (format_number(archive_entry_gid(entry), h + GNUTAR_gid_offset,
GNUTAR_gid_size, GNUTAR_gid_max_size)) {
archive_set_error(&a->archive, ERANGE,
"Numeric group ID %jd too large",
(intmax_t)archive_entry_gid(entry));
ret = ARCHIVE_FAILED;
}
/* GNU tar supports base-256 here, so should never overflow. */
if (format_number(archive_entry_size(entry), h + GNUTAR_size_offset,
GNUTAR_size_size, GNUTAR_size_max_size)) {
archive_set_error(&a->archive, ERANGE,
"File size out of range");
ret = ARCHIVE_FAILED;
}
/* Shouldn't overflow before 2106, since mtime field is 33 bits. */
format_octal(archive_entry_mtime(entry),
h + GNUTAR_mtime_offset, GNUTAR_mtime_size);
if (archive_entry_filetype(entry) == AE_IFBLK
|| archive_entry_filetype(entry) == AE_IFCHR) {
if (format_octal(archive_entry_rdevmajor(entry),
h + GNUTAR_rdevmajor_offset,
GNUTAR_rdevmajor_size)) {
archive_set_error(&a->archive, ERANGE,
"Major device number too large");
ret = ARCHIVE_FAILED;
}
if (format_octal(archive_entry_rdevminor(entry),
h + GNUTAR_rdevminor_offset,
GNUTAR_rdevminor_size)) {
archive_set_error(&a->archive, ERANGE,
"Minor device number too large");
ret = ARCHIVE_FAILED;
}
}
h[GNUTAR_typeflag_offset] = tartype;
checksum = 0;
for (i = 0; i < 512; i++)
checksum += 255 & (unsigned int)h[i];
h[GNUTAR_checksum_offset + 6] = '\0'; /* Can't be pre-set in the template. */
/* h[GNUTAR_checksum_offset + 7] = ' '; */ /* This is pre-set in the template. */
format_octal(checksum, h + GNUTAR_checksum_offset, 6);
return (ret);
}
static int
archive_write_mtree_finish_entry(struct archive_write *a)
{
struct mtree_writer *mtree = a->format_data;
struct archive_entry *entry;
struct archive_string *str;
const char *name;
int keys, ret;
entry = mtree->entry;
if (entry == NULL) {
archive_set_error(&a->archive, ARCHIVE_ERRNO_PROGRAMMER,
"Finished entry without being open first.");
return (ARCHIVE_FATAL);
}
mtree->entry = NULL;
if (mtree->dironly && archive_entry_filetype(entry) != AE_IFDIR) {
archive_entry_free(entry);
return (ARCHIVE_OK);
}
str = (mtree->indent)? &mtree->ebuf : &mtree->buf;
keys = get_keys(mtree, entry);
if ((keys & F_NLINK) != 0 &&
archive_entry_nlink(entry) != 1 &&
archive_entry_filetype(entry) != AE_IFDIR)
archive_string_sprintf(str,
" nlink=%u", archive_entry_nlink(entry));
if ((keys & F_GNAME) != 0 &&
(name = archive_entry_gname(entry)) != NULL) {
archive_strcat(str, " gname=");
mtree_quote(str, name);
}
if ((keys & F_UNAME) != 0 &&
(name = archive_entry_uname(entry)) != NULL) {
archive_strcat(str, " uname=");
mtree_quote(str, name);
}
if ((keys & F_FLAGS) != 0 &&
(name = archive_entry_fflags_text(entry)) != NULL) {
archive_strcat(str, " flags=");
mtree_quote(str, name);
}
if ((keys & F_TIME) != 0)
archive_string_sprintf(str, " time=%jd.%jd",
(intmax_t)archive_entry_mtime(entry),
(intmax_t)archive_entry_mtime_nsec(entry));
if ((keys & F_MODE) != 0)
archive_string_sprintf(str, " mode=%o",
archive_entry_mode(entry) & 07777);
if ((keys & F_GID) != 0)
archive_string_sprintf(str, " gid=%jd",
(intmax_t)archive_entry_gid(entry));
if ((keys & F_UID) != 0)
archive_string_sprintf(str, " uid=%jd",
(intmax_t)archive_entry_uid(entry));
switch (archive_entry_filetype(entry)) {
case AE_IFLNK:
if ((keys & F_TYPE) != 0)
archive_strcat(str, " type=link");
if ((keys & F_SLINK) != 0) {
archive_strcat(str, " link=");
mtree_quote(str, archive_entry_symlink(entry));
}
break;
case AE_IFSOCK:
if ((keys & F_TYPE) != 0)
archive_strcat(str, " type=socket");
break;
case AE_IFCHR:
if ((keys & F_TYPE) != 0)
archive_strcat(str, " type=char");
if ((keys & F_DEV) != 0) {
archive_string_sprintf(str,
" device=native,%d,%d",
archive_entry_rdevmajor(entry),
archive_entry_rdevminor(entry));
}
break;
case AE_IFBLK:
if ((keys & F_TYPE) != 0)
archive_strcat(str, " type=block");
if ((keys & F_DEV) != 0) {
archive_string_sprintf(str,
" device=native,%d,%d",
archive_entry_rdevmajor(entry),
archive_entry_rdevminor(entry));
}
break;
case AE_IFDIR:
if ((keys & F_TYPE) != 0)
archive_strcat(str, " type=dir");
break;
case AE_IFIFO:
if ((keys & F_TYPE) != 0)
archive_strcat(str, " type=fifo");
break;
case AE_IFREG:
default: /* Handle unknown file types as regular files. */
if ((keys & F_TYPE) != 0)
archive_strcat(str, " type=file");
if ((keys & F_SIZE) != 0)
archive_string_sprintf(str, " size=%jd",
(intmax_t)archive_entry_size(entry));
break;
}
if (mtree->compute_sum & F_CKSUM) {
uint64_t len;
/* Include the length of the file. */
for (len = mtree->crc_len; len != 0; len >>= 8)
COMPUTE_CRC(mtree->crc, len & 0xff);
mtree->crc = ~mtree->crc;
archive_string_sprintf(str, " cksum=%ju",
(uintmax_t)mtree->crc);
}
unsigned int Entry::rdevminor()
{
return archive_entry_rdevminor(_entry);
}
/*
* Format a basic 512-byte "ustar" header.
*
* Returns -1 if format failed (due to field overflow).
* Note that this always formats as much of the header as possible.
* If "strict" is set to zero, it will extend numeric fields as
* necessary (overwriting terminators or using base-256 extensions).
*
* This is exported so that other 'tar' formats can use it.
*/
int
__archive_write_format_header_ustar(struct archive_write *a, char h[512],
struct archive_entry *entry, int tartype, int strict)
{
unsigned int checksum;
int i, ret;
size_t copy_length;
const char *p, *pp;
int mytartype;
ret = 0;
mytartype = -1;
/*
* The "template header" already includes the "ustar"
* signature, various end-of-field markers and other required
* elements.
*/
memcpy(h, &template_header, 512);
/*
* Because the block is already null-filled, and strings
* are allowed to exactly fill their destination (without null),
* I use memcpy(dest, src, strlen()) here a lot to copy strings.
*/
pp = archive_entry_pathname(entry);
if (strlen(pp) <= USTAR_name_size)
memcpy(h + USTAR_name_offset, pp, strlen(pp));
else {
/* Store in two pieces, splitting at a '/'. */
p = strchr(pp + strlen(pp) - USTAR_name_size - 1, '/');
/*
* Look for the next '/' if we chose the first character
* as the separator. (ustar format doesn't permit
* an empty prefix.)
*/
if (p == pp)
p = strchr(p + 1, '/');
/* Fail if the name won't fit. */
if (!p) {
/* No separator. */
archive_set_error(&a->archive, ENAMETOOLONG,
"Pathname too long");
ret = ARCHIVE_FAILED;
} else if (p[1] == '\0') {
/*
* The only feasible separator is a final '/';
* this would result in a non-empty prefix and
* an empty name, which POSIX doesn't
* explicity forbid, but it just feels wrong.
*/
archive_set_error(&a->archive, ENAMETOOLONG,
"Pathname too long");
ret = ARCHIVE_FAILED;
} else if (p > pp + USTAR_prefix_size) {
/* Prefix is too long. */
archive_set_error(&a->archive, ENAMETOOLONG,
"Pathname too long");
ret = ARCHIVE_FAILED;
} else {
/* Copy prefix and remainder to appropriate places */
memcpy(h + USTAR_prefix_offset, pp, p - pp);
memcpy(h + USTAR_name_offset, p + 1, pp + strlen(pp) - p - 1);
}
}
p = archive_entry_hardlink(entry);
if (p != NULL)
mytartype = '1';
else
p = archive_entry_symlink(entry);
if (p != NULL && p[0] != '\0') {
copy_length = strlen(p);
if (copy_length > USTAR_linkname_size) {
archive_set_error(&a->archive, ENAMETOOLONG,
"Link contents too long");
ret = ARCHIVE_FAILED;
copy_length = USTAR_linkname_size;
}
memcpy(h + USTAR_linkname_offset, p, copy_length);
}
p = archive_entry_uname(entry);
if (p != NULL && p[0] != '\0') {
copy_length = strlen(p);
if (copy_length > USTAR_uname_size) {
archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
"Username too long");
ret = ARCHIVE_FAILED;
copy_length = USTAR_uname_size;
}
memcpy(h + USTAR_uname_offset, p, copy_length);
}
p = archive_entry_gname(entry);
if (p != NULL && p[0] != '\0') {
copy_length = strlen(p);
if (strlen(p) > USTAR_gname_size) {
archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
"Group name too long");
ret = ARCHIVE_FAILED;
copy_length = USTAR_gname_size;
}
memcpy(h + USTAR_gname_offset, p, copy_length);
}
if (format_number(archive_entry_mode(entry) & 07777, h + USTAR_mode_offset, USTAR_mode_size, USTAR_mode_max_size, strict)) {
archive_set_error(&a->archive, ERANGE, "Numeric mode too large");
ret = ARCHIVE_FAILED;
}
if (format_number(archive_entry_uid(entry), h + USTAR_uid_offset, USTAR_uid_size, USTAR_uid_max_size, strict)) {
archive_set_error(&a->archive, ERANGE, "Numeric user ID too large");
ret = ARCHIVE_FAILED;
}
if (format_number(archive_entry_gid(entry), h + USTAR_gid_offset, USTAR_gid_size, USTAR_gid_max_size, strict)) {
archive_set_error(&a->archive, ERANGE, "Numeric group ID too large");
ret = ARCHIVE_FAILED;
}
if (format_number(archive_entry_size(entry), h + USTAR_size_offset, USTAR_size_size, USTAR_size_max_size, strict)) {
archive_set_error(&a->archive, ERANGE, "File size out of range");
ret = ARCHIVE_FAILED;
}
if (format_number(archive_entry_mtime(entry), h + USTAR_mtime_offset, USTAR_mtime_size, USTAR_mtime_max_size, strict)) {
archive_set_error(&a->archive, ERANGE,
"File modification time too large");
ret = ARCHIVE_FAILED;
}
if (archive_entry_filetype(entry) == AE_IFBLK
|| archive_entry_filetype(entry) == AE_IFCHR) {
if (format_number(archive_entry_rdevmajor(entry), h + USTAR_rdevmajor_offset,
USTAR_rdevmajor_size, USTAR_rdevmajor_max_size, strict)) {
archive_set_error(&a->archive, ERANGE,
"Major device number too large");
ret = ARCHIVE_FAILED;
}
if (format_number(archive_entry_rdevminor(entry), h + USTAR_rdevminor_offset,
USTAR_rdevminor_size, USTAR_rdevminor_max_size, strict)) {
archive_set_error(&a->archive, ERANGE,
"Minor device number too large");
ret = ARCHIVE_FAILED;
}
}
if (tartype >= 0) {
h[USTAR_typeflag_offset] = tartype;
} else if (mytartype >= 0) {
h[USTAR_typeflag_offset] = mytartype;
} else {
switch (archive_entry_filetype(entry)) {
case AE_IFREG: h[USTAR_typeflag_offset] = '0' ; break;
case AE_IFLNK: h[USTAR_typeflag_offset] = '2' ; break;
case AE_IFCHR: h[USTAR_typeflag_offset] = '3' ; break;
case AE_IFBLK: h[USTAR_typeflag_offset] = '4' ; break;
case AE_IFDIR: h[USTAR_typeflag_offset] = '5' ; break;
case AE_IFIFO: h[USTAR_typeflag_offset] = '6' ; break;
case AE_IFSOCK:
archive_set_error(&a->archive,
ARCHIVE_ERRNO_FILE_FORMAT,
"tar format cannot archive socket");
return (ARCHIVE_FAILED);
default:
archive_set_error(&a->archive,
ARCHIVE_ERRNO_FILE_FORMAT,
"tar format cannot archive this (mode=0%lo)",
(unsigned long)archive_entry_mode(entry));
ret = ARCHIVE_FAILED;
}
}
checksum = 0;
for (i = 0; i < 512; i++)
checksum += 255 & (unsigned int)h[i];
h[USTAR_checksum_offset + 6] = '\0'; /* Can't be pre-set in the template. */
/* h[USTAR_checksum_offset + 7] = ' '; */ /* This is pre-set in the template. */
format_octal(checksum, h + USTAR_checksum_offset, 6);
return (ret);
}
