int
__archive_mktemp(const char *tmpdir)
{
static const char num[] = {
'0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', 'A', 'B', 'C', 'D', 'E', 'F',
'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N',
'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V',
'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd',
'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l',
'm', 'n', 'o', 'p', 'q', 'r', 's', 't',
'u', 'v', 'w', 'x', 'y', 'z'
};
struct archive_string temp_name;
struct stat st;
int fd;
char *tp, *ep;
fd = -1;
archive_string_init(&temp_name);
if (tmpdir == NULL) {
if (get_tempdir(&temp_name) != ARCHIVE_OK)
goto exit_tmpfile;
} else
archive_strcpy(&temp_name, tmpdir);
if (temp_name.s[temp_name.length-1] == '/') {
temp_name.s[temp_name.length-1] = '\0';
temp_name.length --;
}
if (stat(temp_name.s, &st) < 0)
goto exit_tmpfile;
if (!S_ISDIR(st.st_mode)) {
errno = ENOTDIR;
goto exit_tmpfile;
}
archive_strcat(&temp_name, "/libarchive_");
tp = temp_name.s + archive_strlen(&temp_name);
archive_strcat(&temp_name, "XXXXXXXXXX");
ep = temp_name.s + archive_strlen(&temp_name);
do {
char *p;
p = tp;
archive_random(p, ep - p);
while (p < ep) {
int d = *((unsigned char *)p) % sizeof(num);
*p++ = num[d];
}
fd = open(temp_name.s, O_CREAT | O_EXCL | O_RDWR | O_CLOEXEC,
0600);
} while (fd < 0 && errno == EEXIST);
if (fd < 0)
goto exit_tmpfile;
__archive_ensure_cloexec_flag(fd);
unlink(temp_name.s);
exit_tmpfile:
archive_string_free(&temp_name);
return (fd);
}
void
archive_set_error(struct archive *a, int error_number, const char *fmt, ...)
{
va_list ap;
#ifdef HAVE_STRERROR_R
char errbuff[512];
#endif
char *errp;
a->archive_error_number = error_number;
if (fmt == NULL) {
a->error = NULL;
return;
}
va_start(ap, fmt);
archive_string_vsprintf(&(a->error_string), fmt, ap);
if (error_number > 0) {
archive_strcat(&(a->error_string), ": ");
#ifdef HAVE_STRERROR_R
#ifdef STRERROR_R_CHAR_P
errp = strerror_r(error_number, errbuff, sizeof(errbuff));
#else
strerror_r(error_number, errbuff, sizeof(errbuff));
errp = errbuff;
#endif
#else
/* Note: this is not threadsafe! */
errp = strerror(error_number);
#endif
archive_strcat(&(a->error_string), errp);
}
a->error = a->error_string.s;
va_end(ap);
}
static const char *
build_pathname(struct archive_string *as, struct file_info *file)
{
if (file->parent != NULL && file->parent->name[0] != '\0') {
build_pathname(as, file->parent);
archive_strcat(as, "/");
}
if (file->name[0] == '\0')
archive_strcat(as, ".");
else
archive_strcat(as, file->name);
return (as->s);
}
int
__archive_mktemp(const char *tmpdir)
{
struct archive_string temp_name;
int fd = -1;
archive_string_init(&temp_name);
if (tmpdir == NULL) {
if (get_tempdir(&temp_name) != ARCHIVE_OK)
goto exit_tmpfile;
} else {
archive_strcpy(&temp_name, tmpdir);
if (temp_name.s[temp_name.length-1] != '/')
archive_strappend_char(&temp_name, '/');
}
archive_strcat(&temp_name, "libarchive_XXXXXX");
fd = mkstemp(temp_name.s);
if (fd < 0)
goto exit_tmpfile;
__archive_ensure_cloexec_flag(fd);
unlink(temp_name.s);
exit_tmpfile:
archive_string_free(&temp_name);
return (fd);
}
const char *
archive_version_details(void)
{
static struct archive_string str;
static int init = 0;
if (!init) {
archive_string_init(&str);
archive_strcat(&str, ARCHIVE_VERSION_STRING);
#ifdef HAVE_ZLIB_H
archive_strcat(&str, " zlib/");
archive_strcat(&str, ZLIB_VERSION);
#endif
#ifdef HAVE_LZMA_H
archive_strcat(&str, " liblzma/");
archive_strcat(&str, LZMA_VERSION_STRING);
#endif
#ifdef HAVE_BZLIB_H
{
const char *p = BZ2_bzlibVersion();
const char *sep = strchr(p, ',');
if (sep == NULL)
sep = p + strlen(p);
archive_strcat(&str, " bz2lib/");
archive_strncat(&str, p, sep - p);
}
#endif
#if defined(HAVE_LZ4_H) && defined(HAVE_LIBLZ4)
archive_string_sprintf(&str, " liblz4/%d.%d.%d",
LZ4_VERSION_MAJOR, LZ4_VERSION_MINOR, LZ4_VERSION_RELEASE);
#endif
}
return str.s;
}
static void
mtree_indent(struct mtree_writer *mtree)
{
int i, fn;
const char *r, *s, *x;
fn = 1;
s = r = mtree->ebuf.s;
x = NULL;
while (*r == ' ')
r++;
while ((r = strchr(r, ' ')) != NULL) {
if (fn) {
fn = 0;
archive_strncat(&mtree->buf, s, r - s);
if (r -s > INDENTNAMELEN) {
archive_strncat(&mtree->buf, " \\\n", 3);
for (i = 0; i < (INDENTNAMELEN + 1); i++)
archive_strappend_char(&mtree->buf, ' ');
} else {
for (i = r -s; i < (INDENTNAMELEN + 1); i++)
archive_strappend_char(&mtree->buf, ' ');
}
s = ++r;
x = NULL;
continue;
}
if (r - s <= MAXLINELEN - 3 - INDENTNAMELEN)
x = r++;
else {
if (x == NULL)
x = r;
archive_strncat(&mtree->buf, s, x - s);
archive_strncat(&mtree->buf, " \\\n", 3);
for (i = 0; i < (INDENTNAMELEN + 1); i++)
archive_strappend_char(&mtree->buf, ' ');
s = r = ++x;
x = NULL;
}
}
if (x != NULL && strlen(s) > MAXLINELEN - 3 - INDENTNAMELEN) {
/* Last keyword is longer. */
archive_strncat(&mtree->buf, s, x - s);
archive_strncat(&mtree->buf, " \\\n", 3);
for (i = 0; i < (INDENTNAMELEN + 1); i++)
archive_strappend_char(&mtree->buf, ' ');
s = ++x;
}
archive_strcat(&mtree->buf, s);
archive_string_empty(&mtree->ebuf);
}
/*
* Copy the given string to the buffer, quoting all shell meta characters
* found.
*/
static void
shar_quote(struct archive_string *buf, const char *str, int in_shell)
{
static const char meta[] = "\n \t'`\";&<>()|*?{}[]\\$!#^~";
size_t len;
while (*str != '\0') {
if ((len = strcspn(str, meta)) != 0) {
archive_strncat(buf, str, len);
str += len;
} else if (*str == '\n') {
if (in_shell)
archive_strcat(buf, "\"\n\"");
else
archive_strcat(buf, "\\n");
++str;
} else {
archive_strappend_char(buf, '\\');
archive_strappend_char(buf, *str);
++str;
}
}
}
static void
test_archive_strcat(void)
{
struct archive_string s;
archive_string_init(&s);
assertExactString(0, 0, NULL, s);
/* null target, empty source */
assert(&s == archive_strcat(&s, ""));
assertExactString(0, EXTENT, "", s);
/* empty target, empty source */
assert(&s == archive_strcat(&s, ""));
assertExactString(0, EXTENT, "", s);
/* empty target, non-empty source */
assert(&s == archive_strcat(&s, "fubar"));
assertExactString(5, EXTENT, "fubar", s);
/* non-empty target, non-empty source */
assert(&s == archive_strcat(&s, "baz"));
assertExactString(8, EXTENT, "fubarbaz", s);
}
/*
* Add a filter to this write handle that passes all data through an
* external program.
*/
int
archive_write_add_filter_program(struct archive *_a, const char *cmd)
{
struct archive_write_filter *f = __archive_write_allocate_filter(_a);
struct private_data *data;
static const char *prefix = "Program: ";
archive_check_magic(_a, ARCHIVE_WRITE_MAGIC,
ARCHIVE_STATE_NEW, "archive_write_add_filter_program");
f->data = calloc(1, sizeof(*data));
if (f->data == NULL)
goto memerr;
data = (struct private_data *)f->data;
data->cmd = strdup(cmd);
if (data->cmd == NULL)
goto memerr;
data->pdata = __archive_write_program_allocate();
if (data->pdata == NULL)
goto memerr;
/* Make up a description string. */
if (archive_string_ensure(&data->description,
strlen(prefix) + strlen(cmd) + 1) == NULL)
goto memerr;
archive_strcpy(&data->description, prefix);
archive_strcat(&data->description, cmd);
f->name = data->description.s;
f->code = ARCHIVE_FILTER_PROGRAM;
f->open = archive_compressor_program_open;
f->write = archive_compressor_program_write;
f->close = archive_compressor_program_close;
f->free = archive_compressor_program_free;
return (ARCHIVE_OK);
memerr:
archive_compressor_program_free(f);
archive_set_error(_a, ENOMEM,
"Can't allocate memory for filter program");
return (ARCHIVE_FATAL);
}
static int
archive_compressor_bzip2_open(struct archive_write_filter *f)
{
struct private_data *data = (struct private_data *)f->data;
struct archive_string as;
int r;
archive_string_init(&as);
archive_strcpy(&as, "bzip2");
/* Specify compression level. */
if (data->compression_level > 0) {
archive_strcat(&as, " -");
archive_strappend_char(&as, '0' + data->compression_level);
}
f->write = archive_compressor_bzip2_write;
r = __archive_write_program_open(f, data->pdata, as.s);
archive_string_free(&as);
return (r);
}
/*
* Translates a wide character string into UTF-8 and appends
* to the archive_string. Note: returns NULL if conversion fails,
* but still leaves a best-effort conversion in the argument as.
*/
struct archive_string *
__archive_strappend_w_utf8(struct archive_string *as, const wchar_t *w)
{
char *p;
unsigned wc;
char buff[256];
struct archive_string *return_val = as;
/*
* Convert one wide char at a time into 'buff', whenever that
* fills, append it to the string.
*/
p = buff;
while (*w != L'\0') {
/* Flush the buffer when we have <=16 bytes free. */
/* (No encoding has a single character >16 bytes.) */
if ((size_t)(p - buff) >= (size_t)(sizeof(buff) - 16)) {
*p = '\0';
archive_strcat(as, buff);
p = buff;
}
wc = *w++;
/* If this is a surrogate pair, assemble the full code point.*/
/* Note: wc must not be wchar_t here, because the full code
* point can be more than 16 bits! */
if (wc >= 0xD800 && wc <= 0xDBff
&& *w >= 0xDC00 && *w <= 0xDFFF) {
wc -= 0xD800;
wc *= 0x400;
wc += (*w - 0xDC00);
wc += 0x10000;
++w;
}
/* Translate code point to UTF8 */
if (wc <= 0x7f) {
*p++ = (char)wc;
} else if (wc <= 0x7ff) {
*p++ = 0xc0 | ((wc >> 6) & 0x1f);
*p++ = 0x80 | (wc & 0x3f);
} else if (wc <= 0xffff) {
const char *
archive_version_details(void)
{
static struct archive_string str;
static int init = 0;
const char *zlib = archive_zlib_version();
const char *liblzma = archive_liblzma_version();
const char *bzlib = archive_bzlib_version();
const char *liblz4 = archive_liblz4_version();
if (!init) {
archive_string_init(&str);
archive_strcat(&str, ARCHIVE_VERSION_STRING);
if (zlib != NULL) {
archive_strcat(&str, " zlib/");
archive_strcat(&str, zlib);
}
if (liblzma) {
archive_strcat(&str, " liblzma/");
archive_strcat(&str, liblzma);
}
if (bzlib) {
const char *p = bzlib;
const char *sep = strchr(p, ',');
if (sep == NULL)
sep = p + strlen(p);
archive_strcat(&str, " bz2lib/");
archive_strncat(&str, p, sep - p);
}
if (liblz4) {
archive_strcat(&str, " liblz4/");
archive_strcat(&str, liblz4);
}
}
return str.s;
}
static int
archive_write_shar_close(struct archive_write *a)
{
struct shar *shar;
int ret;
/*
* TODO: Accumulate list of directory names/modes and
* fix them all up at end-of-archive.
*/
shar = (struct shar *)a->format_data;
/*
* Only write the end-of-archive markers if the archive was
* actually started. This avoids problems if someone sets
* shar format, then sets another format (which would invoke
* shar_finish to free the format-specific data).
*/
if (shar->wrote_header == 0)
return (ARCHIVE_OK);
archive_strcat(&shar->work, "exit\n");
ret = __archive_write_output(a, shar->work.s, shar->work.length);
if (ret != ARCHIVE_OK)
return (ARCHIVE_FATAL);
/* Shar output is never padded. */
archive_write_set_bytes_in_last_block(&a->archive, 1);
/*
* TODO: shar should also suppress padding of
* uncompressed data within gzip/bzip2 streams.
*/
return (ARCHIVE_OK);
}
static int
archive_write_lrzip_open(struct archive_write_filter *f)
{
struct write_lrzip *data = (struct write_lrzip *)f->data;
struct archive_string as;
int r;
archive_string_init(&as);
archive_strcpy(&as, "lrzip -q");
/* Specify compression type. */
switch (data->compression) {
case lzma:/* default compression */
break;
case bzip2:
archive_strcat(&as, " -b");
break;
case gzip:
archive_strcat(&as, " -g");
break;
case lzo:
archive_strcat(&as, " -l");
break;
case none:
archive_strcat(&as, " -n");
break;
case zpaq:
archive_strcat(&as, " -z");
break;
}
/* Specify compression level. */
if (data->compression_level > 0) {
archive_strcat(&as, " -L ");
archive_strappend_char(&as, '0' + data->compression_level);
}
r = __archive_write_program_open(f, data->pdata, as.s);
archive_string_free(&as);
return (r);
}
static int
archive_write_shar_finish_entry(struct archive_write *a)
{
const char *g, *p, *u;
struct shar *shar;
int ret;
shar = (struct shar *)a->format_data;
if (shar->entry == NULL)
return (0);
if (shar->dump) {
/* Finish uuencoded data. */
if (shar->has_data) {
if (shar->outpos > 0)
uuencode_line(a, shar, shar->outbuff,
shar->outpos);
archive_strcat(&shar->work, "`\nend\n");
archive_strcat(&shar->work, "SHAR_END\n");
}
/* Restore file mode, owner, flags. */
/*
* TODO: Don't immediately restore mode for
* directories; defer that to end of script.
*/
archive_string_sprintf(&shar->work, "chmod %o ",
(unsigned int)(archive_entry_mode(shar->entry) & 07777));
shar_quote(&shar->work, archive_entry_pathname(shar->entry), 1);
archive_strcat(&shar->work, "\n");
u = archive_entry_uname(shar->entry);
g = archive_entry_gname(shar->entry);
if (u != NULL || g != NULL) {
archive_strcat(&shar->work, "chown ");
if (u != NULL)
shar_quote(&shar->work, u, 1);
if (g != NULL) {
archive_strcat(&shar->work, ":");
shar_quote(&shar->work, g, 1);
}
archive_strcat(&shar->work, " ");
shar_quote(&shar->work,
archive_entry_pathname(shar->entry), 1);
archive_strcat(&shar->work, "\n");
}
if ((p = archive_entry_fflags_text(shar->entry)) != NULL) {
archive_string_sprintf(&shar->work, "chflags %s ", p);
shar_quote(&shar->work,
archive_entry_pathname(shar->entry), 1);
archive_strcat(&shar->work, "\n");
}
/* TODO: restore ACLs */
} else {
if (shar->has_data) {
/* Finish sed-encoded data: ensure last line ends. */
if (!shar->end_of_line)
archive_strappend_char(&shar->work, '\n');
archive_strcat(&shar->work, "SHAR_END\n");
}
}
archive_entry_free(shar->entry);
shar->entry = NULL;
if (shar->work.length < 65536)
return (ARCHIVE_OK);
ret = __archive_write_output(a, shar->work.s, shar->work.length);
if (ret != ARCHIVE_OK)
return (ARCHIVE_FATAL);
archive_string_empty(&shar->work);
return (ARCHIVE_OK);
}
/*
* Like 'vsprintf', but ensures the target is big enough, resizing if
* necessary.
*/
void
archive_string_vsprintf(struct archive_string *as, const char *fmt,
va_list ap)
{
char long_flag;
intmax_t s; /* Signed integer temp. */
uintmax_t u; /* Unsigned integer temp. */
const char *p, *p2;
const wchar_t *pw;
if (archive_string_ensure(as, 64) == NULL)
__archive_errx(1, "Out of memory");
if (fmt == NULL) {
as->s[0] = 0;
return;
}
for (p = fmt; *p != '\0'; p++) {
const char *saved_p = p;
if (*p != '%') {
archive_strappend_char(as, *p);
continue;
}
p++;
long_flag = '\0';
switch(*p) {
case 'j':
case 'l':
case 'z':
long_flag = *p;
p++;
break;
}
switch (*p) {
case '%':
archive_strappend_char(as, '%');
break;
case 'c':
s = va_arg(ap, int);
archive_strappend_char(as, (char)s);
break;
case 'd':
switch(long_flag) {
case 'j': s = va_arg(ap, intmax_t); break;
case 'l': s = va_arg(ap, long); break;
case 'z': s = va_arg(ap, ssize_t); break;
default: s = va_arg(ap, int); break;
}
append_int(as, s, 10);
break;
case 's':
switch(long_flag) {
case 'l':
pw = va_arg(ap, wchar_t *);
if (pw == NULL)
pw = L"(null)";
if (archive_string_append_from_wcs(as, pw,
wcslen(pw)) != 0 && errno == ENOMEM)
__archive_errx(1, "Out of memory");
break;
default:
p2 = va_arg(ap, char *);
if (p2 == NULL)
p2 = "(null)";
archive_strcat(as, p2);
break;
}
break;
case 'S':
pw = va_arg(ap, wchar_t *);
if (pw == NULL)
pw = L"(null)";
if (archive_string_append_from_wcs(as, pw,
wcslen(pw)) != 0 && errno == ENOMEM)
__archive_errx(1, "Out of memory");
break;
case 'o': case 'u': case 'x': case 'X':
/* Common handling for unsigned integer formats. */
switch(long_flag) {
case 'j': u = va_arg(ap, uintmax_t); break;
case 'l': u = va_arg(ap, unsigned long); break;
case 'z': u = va_arg(ap, size_t); break;
default: u = va_arg(ap, unsigned int); break;
}
/* Format it in the correct base. */
switch (*p) {
case 'o': append_uint(as, u, 8); break;
case 'u': append_uint(as, u, 10); break;
default: append_uint(as, u, 16); break;
}
break;
default:
/* Rewind and print the initial '%' literally. */
p = saved_p;
archive_strappend_char(as, *p);
}
}
}
pid_t
__archive_create_child(const char *cmd, int *child_stdin, int *child_stdout)
{
HANDLE childStdout[2], childStdin[2],childStderr;
SECURITY_ATTRIBUTES secAtts;
STARTUPINFOA staInfo;
PROCESS_INFORMATION childInfo;
struct archive_string cmdline;
struct archive_string fullpath;
struct archive_cmdline *acmd;
char *arg0, *ext;
int i, l;
DWORD fl, fl_old;
childStdout[0] = childStdout[1] = INVALID_HANDLE_VALUE;
childStdin[0] = childStdin[1] = INVALID_HANDLE_VALUE;
childStderr = INVALID_HANDLE_VALUE;
archive_string_init(&cmdline);
archive_string_init(&fullpath);
acmd = __archive_cmdline_allocate();
if (acmd == NULL)
goto fail;
if (__archive_cmdline_parse(acmd, cmd) != ARCHIVE_OK)
goto fail;
/*
* Search the full path of 'path'.
* NOTE: This does not need if we give CreateProcessA 'path' as
* a part of the cmdline and give CreateProcessA NULL as first
* parameter, but I do not like that way.
*/
ext = strrchr(acmd->path, '.');
if (ext == NULL || strlen(ext) > 4)
/* 'path' does not have a proper extension, so we have to
* give SearchPath() ".exe" as the extension. */
ext = ".exe";
else
ext = NULL;/* 'path' has an extension. */
fl = MAX_PATH;
do {
if (archive_string_ensure(&fullpath, fl) == NULL)
goto fail;
fl_old = fl;
fl = SearchPathA(NULL, acmd->path, ext, fl, fullpath.s,
&arg0);
} while (fl != 0 && fl > fl_old);
if (fl == 0)
goto fail;
/*
* Make a command line.
*/
for (l = 0, i = 0; acmd->argv[i] != NULL; i++) {
if (i == 0)
continue;
l += (int)strlen(acmd->argv[i]) + 1;
}
if (archive_string_ensure(&cmdline, l + 1) == NULL)
goto fail;
for (i = 0; acmd->argv[i] != NULL; i++) {
if (i == 0) {
const char *p, *sp;
if ((p = strchr(acmd->argv[i], '/')) != NULL ||
(p = strchr(acmd->argv[i], '\\')) != NULL)
p++;
else
p = acmd->argv[i];
if ((sp = strchr(p, ' ')) != NULL)
archive_strappend_char(&cmdline, '"');
archive_strcat(&cmdline, p);
if (sp != NULL)
archive_strappend_char(&cmdline, '"');
} else {
archive_strappend_char(&cmdline, ' ');
archive_strcat(&cmdline, acmd->argv[i]);
}
}
if (i <= 1) {
const char *sp;
if ((sp = strchr(arg0, ' ')) != NULL)
archive_strappend_char(&cmdline, '"');
archive_strcat(&cmdline, arg0);
if (sp != NULL)
archive_strappend_char(&cmdline, '"');
}
secAtts.nLength = sizeof(SECURITY_ATTRIBUTES);
secAtts.bInheritHandle = TRUE;
secAtts.lpSecurityDescriptor = NULL;
if (CreatePipe(&childStdout[0], &childStdout[1], &secAtts, 0) == 0)
goto fail;
if (!SetHandleInformation(childStdout[0], HANDLE_FLAG_INHERIT, 0))
goto fail;
if (CreatePipe(&childStdin[0], &childStdin[1], &secAtts, 0) == 0)
goto fail;
if (!SetHandleInformation(childStdin[1], HANDLE_FLAG_INHERIT, 0))
goto fail;
if (DuplicateHandle(GetCurrentProcess(), GetStdHandle(STD_ERROR_HANDLE),
GetCurrentProcess(), &childStderr, 0, TRUE,
DUPLICATE_SAME_ACCESS) == 0)
goto fail;
memset(&staInfo, 0, sizeof(staInfo));
staInfo.cb = sizeof(staInfo);
staInfo.hStdError = childStderr;
staInfo.hStdOutput = childStdout[1];
staInfo.hStdInput = childStdin[0];
staInfo.wShowWindow = SW_HIDE;
staInfo.dwFlags = STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW;
if (CreateProcessA(fullpath.s, cmdline.s, NULL, NULL, TRUE, 0,
NULL, NULL, &staInfo, &childInfo) == 0)
goto fail;
WaitForInputIdle(childInfo.hProcess, INFINITE);
CloseHandle(childInfo.hProcess);
CloseHandle(childInfo.hThread);
*child_stdout = _open_osfhandle((intptr_t)childStdout[0], _O_RDONLY);
*child_stdin = _open_osfhandle((intptr_t)childStdin[1], _O_WRONLY);
CloseHandle(childStdout[1]);
CloseHandle(childStdin[0]);
archive_string_free(&cmdline);
archive_string_free(&fullpath);
__archive_cmdline_free(acmd);
return (childInfo.dwProcessId);
fail:
if (childStdout[0] != INVALID_HANDLE_VALUE)
CloseHandle(childStdout[0]);
if (childStdout[1] != INVALID_HANDLE_VALUE)
CloseHandle(childStdout[1]);
if (childStdin[0] != INVALID_HANDLE_VALUE)
CloseHandle(childStdin[0]);
if (childStdin[1] != INVALID_HANDLE_VALUE)
CloseHandle(childStdin[1]);
if (childStderr != INVALID_HANDLE_VALUE)
CloseHandle(childStderr);
archive_string_free(&cmdline);
archive_string_free(&fullpath);
__archive_cmdline_free(acmd);
return (-1);
}
/*
* The Mac OS "copyfile()" API copies the extended metadata for a
* file into a separate file in AppleDouble format (see RFC 1740).
*
* Mac OS tar and cpio implementations store this extended
* metadata as a separate entry just before the regular entry
* with a "._" prefix added to the filename.
*
* Note that this is currently done unconditionally; the tar program has
* an option to discard this information before the archive is written.
*
* TODO: If there's a failure, report it and return ARCHIVE_WARN.
*/
static int
setup_mac_metadata(struct archive_read_disk *a,
struct archive_entry *entry, int *fd)
{
int tempfd = -1;
int copyfile_flags = COPYFILE_NOFOLLOW | COPYFILE_ACL | COPYFILE_XATTR;
struct stat copyfile_stat;
int ret = ARCHIVE_OK;
void *buff = NULL;
int have_attrs;
const char *name, *tempdir;
struct archive_string tempfile;
(void)fd; /* UNUSED */
name = archive_entry_sourcepath(entry);
if (name == NULL)
name = archive_entry_pathname(entry);
if (name == NULL) {
archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
"Can't open file to read extended attributes: No name");
return (ARCHIVE_WARN);
}
if (a->tree != NULL) {
if (a->tree_enter_working_dir(a->tree) != 0) {
archive_set_error(&a->archive, errno,
"Couldn't change dir");
return (ARCHIVE_FAILED);
}
}
/* Short-circuit if there's nothing to do. */
have_attrs = copyfile(name, NULL, 0, copyfile_flags | COPYFILE_CHECK);
if (have_attrs == -1) {
archive_set_error(&a->archive, errno,
"Could not check extended attributes");
return (ARCHIVE_WARN);
}
if (have_attrs == 0)
return (ARCHIVE_OK);
tempdir = NULL;
if (issetugid() == 0)
tempdir = getenv("TMPDIR");
if (tempdir == NULL)
tempdir = _PATH_TMP;
archive_string_init(&tempfile);
archive_strcpy(&tempfile, tempdir);
archive_strcat(&tempfile, "tar.md.XXXXXX");
tempfd = mkstemp(tempfile.s);
if (tempfd < 0) {
archive_set_error(&a->archive, errno,
"Could not open extended attribute file");
ret = ARCHIVE_WARN;
goto cleanup;
}
__archive_ensure_cloexec_flag(tempfd);
/* XXX I wish copyfile() could pack directly to a memory
* buffer; that would avoid the temp file here. For that
* matter, it would be nice if fcopyfile() actually worked,
* that would reduce the many open/close races here. */
if (copyfile(name, tempfile.s, 0, copyfile_flags | COPYFILE_PACK)) {
archive_set_error(&a->archive, errno,
"Could not pack extended attributes");
ret = ARCHIVE_WARN;
goto cleanup;
}
if (fstat(tempfd, ©file_stat)) {
archive_set_error(&a->archive, errno,
"Could not check size of extended attributes");
ret = ARCHIVE_WARN;
goto cleanup;
}
buff = malloc(copyfile_stat.st_size);
if (buff == NULL) {
archive_set_error(&a->archive, errno,
"Could not allocate memory for extended attributes");
ret = ARCHIVE_WARN;
goto cleanup;
}
if (copyfile_stat.st_size != read(tempfd, buff, copyfile_stat.st_size)) {
archive_set_error(&a->archive, errno,
"Could not read extended attributes into memory");
ret = ARCHIVE_WARN;
goto cleanup;
}
archive_entry_copy_mac_metadata(entry, buff, copyfile_stat.st_size);
cleanup:
if (tempfd >= 0) {
close(tempfd);
unlink(tempfile.s);
}
archive_string_free(&tempfile);
free(buff);
return (ret);
}
/*
* Like 'vsprintf', but ensures the target is big enough, resizing if
* necessary.
*/
void
__archive_string_vsprintf(struct archive_string *as, const char *fmt,
va_list ap)
{
char long_flag;
intmax_t s; /* Signed integer temp. */
uintmax_t u; /* Unsigned integer temp. */
const char *p, *p2;
if (__archive_string_ensure(as, 64) == NULL)
__archive_errx(1, "Out of memory");
if (fmt == NULL) {
as->s[0] = 0;
return;
}
long_flag = '\0';
for (p = fmt; *p != '\0'; p++) {
const char *saved_p = p;
if (*p != '%') {
archive_strappend_char(as, *p);
continue;
}
p++;
switch(*p) {
case 'j':
long_flag = 'j';
p++;
break;
case 'l':
long_flag = 'l';
p++;
break;
}
switch (*p) {
case '%':
__archive_strappend_char(as, '%');
break;
case 'c':
s = va_arg(ap, int);
__archive_strappend_char(as, s);
break;
case 'd':
switch(long_flag) {
case 'j': s = va_arg(ap, intmax_t); break;
case 'l': s = va_arg(ap, long); break;
default: s = va_arg(ap, int); break;
}
archive_strappend_int(as, s, 10);
break;
case 's':
p2 = va_arg(ap, char *);
archive_strcat(as, p2);
break;
case 'o': case 'u': case 'x': case 'X':
/* Common handling for unsigned integer formats. */
switch(long_flag) {
case 'j': u = va_arg(ap, uintmax_t); break;
case 'l': u = va_arg(ap, unsigned long); break;
default: u = va_arg(ap, unsigned int); break;
}
/* Format it in the correct base. */
switch (*p) {
case 'o': archive_strappend_int(as, u, 8); break;
case 'u': archive_strappend_int(as, u, 10); break;
default: archive_strappend_int(as, u, 16); break;
}
break;
default:
/* Rewind and print the initial '%' literally. */
p = saved_p;
archive_strappend_char(as, *p);
}
}
}
/*
* Write /set keyword. It means set global datas.
* [directory-only mode]
* - It is only once to write /set keyword. It is using values of the
* first entry.
* [normal mode]
* - Write /set keyword. It is using values of the first entry whose
* filetype is a regular file.
* - When a parent directory of the entry whose filetype is the regular
* file is changed, check the global datas and write it again if its
* values are different from the entry's.
*/
static void
set_global(struct mtree_writer *mtree, struct archive_entry *entry)
{
struct archive_string setstr;
struct archive_string unsetstr;
const char *name;
int keys, oldkeys, effkeys;
mode_t set_type = 0;
switch (archive_entry_filetype(entry)) {
case AE_IFLNK: case AE_IFSOCK: case AE_IFCHR:
case AE_IFBLK: case AE_IFIFO:
break;
case AE_IFDIR:
if (mtree->dironly)
set_type = AE_IFDIR;
break;
case AE_IFREG:
default: /* Handle unknown file types as regular files. */
if (!mtree->dironly)
set_type = AE_IFREG;
break;
}
if (set_type == 0)
return;
if (mtree->set.processed &&
!parent_dir_changed(&mtree->set.parent, entry))
return;
/* At first, save a parent directory of the entry for following
* entries. */
if (!mtree->set.processed && set_type == AE_IFREG)
parent_dir_changed(&mtree->set.parent, entry);
archive_string_init(&setstr);
archive_string_init(&unsetstr);
keys = mtree->keys & (F_FLAGS | F_GID | F_GNAME | F_NLINK | F_MODE
| F_TYPE | F_UID | F_UNAME);
oldkeys = mtree->set.keys;
effkeys = keys;
if (mtree->set.processed) {
/*
* Check the global datas for whether it needs updating.
*/
effkeys &= ~F_TYPE;
if ((oldkeys & (F_UNAME | F_UID)) != 0 &&
mtree->set.uid == archive_entry_uid(entry))
effkeys &= ~(F_UNAME | F_UID);
if ((oldkeys & (F_GNAME | F_GID)) != 0 &&
mtree->set.gid == archive_entry_gid(entry))
effkeys &= ~(F_GNAME | F_GID);
if ((oldkeys & F_MODE) != 0 &&
mtree->set.mode == (archive_entry_mode(entry) & 07777))
effkeys &= ~F_MODE;
if ((oldkeys & F_FLAGS) != 0) {
unsigned long fflags_set;
unsigned long fflags_clear;
archive_entry_fflags(entry, &fflags_set, &fflags_clear);
if (fflags_set == mtree->set.fflags_set &&
fflags_clear == mtree->set.fflags_clear)
effkeys &= ~F_FLAGS;
}
}
if ((keys & effkeys & F_TYPE) != 0) {
mtree->set.type = set_type;
if (set_type == AE_IFDIR)
archive_strcat(&setstr, " type=dir");
else
archive_strcat(&setstr, " type=file");
}
if ((keys & effkeys & F_UNAME) != 0) {
if ((name = archive_entry_uname(entry)) != NULL) {
archive_strcat(&setstr, " uname=");
mtree_quote(&setstr, name);
} else if ((oldkeys & F_UNAME) != 0)
archive_strcat(&unsetstr, " uname");
else
keys &= ~F_UNAME;
}
if ((keys & effkeys & F_UID) != 0) {
mtree->set.uid = archive_entry_uid(entry);
archive_string_sprintf(&setstr, " uid=%jd",
(intmax_t)mtree->set.uid);
}
if ((keys & effkeys & F_GNAME) != 0) {
if ((name = archive_entry_gname(entry)) != NULL) {
archive_strcat(&setstr, " gname=");
mtree_quote(&setstr, name);
} else if ((oldkeys & F_GNAME) != 0)
archive_strcat(&unsetstr, " gname");
else
keys &= ~F_GNAME;
}
if ((keys & effkeys & F_GID) != 0) {
mtree->set.gid = archive_entry_gid(entry);
archive_string_sprintf(&setstr, " gid=%jd",
(intmax_t)mtree->set.gid);
}
if ((keys & effkeys & F_MODE) != 0) {
mtree->set.mode = archive_entry_mode(entry) & 07777;
archive_string_sprintf(&setstr, " mode=%o", mtree->set.mode);
}
if ((keys & effkeys & F_FLAGS) != 0) {
if ((name = archive_entry_fflags_text(entry)) != NULL) {
archive_strcat(&setstr, " flags=");
mtree_quote(&setstr, name);
archive_entry_fflags(entry, &mtree->set.fflags_set,
&mtree->set.fflags_clear);
} else if ((oldkeys & F_FLAGS) != 0)
archive_strcat(&unsetstr, " flags");
else
keys &= ~F_FLAGS;
}
if (unsetstr.length > 0)
archive_string_sprintf(&mtree->buf, "/unset%s\n", unsetstr.s);
archive_string_free(&unsetstr);
if (setstr.length > 0)
archive_string_sprintf(&mtree->buf, "/set%s\n", setstr.s);
archive_string_free(&setstr);
mtree->set.keys = keys;
mtree->set.processed = 1;
/* On directory-only mode, it is only once to write /set keyword. */
if (mtree->dironly)
mtree->set.output = 0;
}
/*
* A single file can have multiple lines contribute specifications.
* Parse as many lines as necessary, then pull additional information
* from a backing file on disk as necessary.
*/
static int
parse_file(struct archive_read *a, struct archive_entry *entry,
struct mtree *mtree, struct mtree_entry *mentry, int *use_next)
{
const char *path;
struct stat st_storage, *st;
struct mtree_entry *mp;
struct archive_entry *sparse_entry;
int r = ARCHIVE_OK, r1, parsed_kws;
mentry->used = 1;
/* Initialize reasonable defaults. */
archive_entry_set_filetype(entry, AE_IFREG);
archive_entry_set_size(entry, 0);
archive_string_empty(&mtree->contents_name);
/* Parse options from this line. */
parsed_kws = 0;
r = parse_line(a, entry, mtree, mentry, &parsed_kws);
if (mentry->full) {
archive_entry_copy_pathname(entry, mentry->name);
/*
* "Full" entries are allowed to have multiple lines
* and those lines aren't required to be adjacent. We
* don't support multiple lines for "relative" entries
* nor do we make any attempt to merge data from
* separate "relative" and "full" entries. (Merging
* "relative" and "full" entries would require dealing
* with pathname canonicalization, which is a very
* tricky subject.)
*/
for (mp = mentry->next; mp != NULL; mp = mp->next) {
if (mp->full && !mp->used
&& strcmp(mentry->name, mp->name) == 0) {
/* Later lines override earlier ones. */
mp->used = 1;
r1 = parse_line(a, entry, mtree, mp,
&parsed_kws);
if (r1 < r)
r = r1;
}
}
} else {
/*
* Relative entries require us to construct
* the full path and possibly update the
* current directory.
*/
size_t n = archive_strlen(&mtree->current_dir);
if (n > 0)
archive_strcat(&mtree->current_dir, "/");
archive_strcat(&mtree->current_dir, mentry->name);
archive_entry_copy_pathname(entry, mtree->current_dir.s);
if (archive_entry_filetype(entry) != AE_IFDIR)
mtree->current_dir.length = n;
}
/*
* Try to open and stat the file to get the real size
* and other file info. It would be nice to avoid
* this here so that getting a listing of an mtree
* wouldn't require opening every referenced contents
* file. But then we wouldn't know the actual
* contents size, so I don't see a really viable way
* around this. (Also, we may want to someday pull
* other unspecified info from the contents file on
* disk.)
*/
mtree->fd = -1;
if (archive_strlen(&mtree->contents_name) > 0)
path = mtree->contents_name.s;
else
path = archive_entry_pathname(entry);
if (archive_entry_filetype(entry) == AE_IFREG ||
archive_entry_filetype(entry) == AE_IFDIR) {
mtree->fd = open(path, O_RDONLY | O_BINARY | O_CLOEXEC);
__archive_ensure_cloexec_flag(mtree->fd);
if (mtree->fd == -1 &&
(errno != ENOENT ||
archive_strlen(&mtree->contents_name) > 0)) {
archive_set_error(&a->archive, errno,
"Can't open %s", path);
r = ARCHIVE_WARN;
}
}
st = &st_storage;
if (mtree->fd >= 0) {
if (fstat(mtree->fd, st) == -1) {
archive_set_error(&a->archive, errno,
"Could not fstat %s", path);
r = ARCHIVE_WARN;
/* If we can't stat it, don't keep it open. */
close(mtree->fd);
mtree->fd = -1;
st = NULL;
}
} else if (lstat(path, st) == -1) {
st = NULL;
}
/*
* Check for a mismatch between the type in the specification and
* the type of the contents object on disk.
*/
if (st != NULL) {
if (
((st->st_mode & S_IFMT) == S_IFREG &&
archive_entry_filetype(entry) == AE_IFREG)
#ifdef S_IFLNK
|| ((st->st_mode & S_IFMT) == S_IFLNK &&
archive_entry_filetype(entry) == AE_IFLNK)
#endif
#ifdef S_IFSOCK
|| ((st->st_mode & S_IFSOCK) == S_IFSOCK &&
archive_entry_filetype(entry) == AE_IFSOCK)
#endif
#ifdef S_IFCHR
|| ((st->st_mode & S_IFMT) == S_IFCHR &&
archive_entry_filetype(entry) == AE_IFCHR)
#endif
#ifdef S_IFBLK
|| ((st->st_mode & S_IFMT) == S_IFBLK &&
archive_entry_filetype(entry) == AE_IFBLK)
#endif
|| ((st->st_mode & S_IFMT) == S_IFDIR &&
archive_entry_filetype(entry) == AE_IFDIR)
#ifdef S_IFIFO
|| ((st->st_mode & S_IFMT) == S_IFIFO &&
archive_entry_filetype(entry) == AE_IFIFO)
#endif
) {
/* Types match. */
} else {
/* Types don't match; bail out gracefully. */
if (mtree->fd >= 0)
close(mtree->fd);
mtree->fd = -1;
if (parsed_kws & MTREE_HAS_OPTIONAL) {
/* It's not an error for an optional entry
to not match disk. */
*use_next = 1;
} else if (r == ARCHIVE_OK) {
archive_set_error(&a->archive,
ARCHIVE_ERRNO_MISC,
"mtree specification has different type for %s",
archive_entry_pathname(entry));
r = ARCHIVE_WARN;
}
return r;
}
}
/*
* If there is a contents file on disk, pick some of the metadata
* from that file. For most of these, we only set it from the contents
* if it wasn't already parsed from the specification.
*/
if (st != NULL) {
if (((parsed_kws & MTREE_HAS_DEVICE) == 0 ||
(parsed_kws & MTREE_HAS_NOCHANGE) != 0) &&
(archive_entry_filetype(entry) == AE_IFCHR ||
archive_entry_filetype(entry) == AE_IFBLK))
archive_entry_set_rdev(entry, st->st_rdev);
if ((parsed_kws & (MTREE_HAS_GID | MTREE_HAS_GNAME)) == 0 ||
(parsed_kws & MTREE_HAS_NOCHANGE) != 0)
archive_entry_set_gid(entry, st->st_gid);
if ((parsed_kws & (MTREE_HAS_UID | MTREE_HAS_UNAME)) == 0 ||
(parsed_kws & MTREE_HAS_NOCHANGE) != 0)
archive_entry_set_uid(entry, st->st_uid);
if ((parsed_kws & MTREE_HAS_MTIME) == 0 ||
(parsed_kws & MTREE_HAS_NOCHANGE) != 0) {
#if HAVE_STRUCT_STAT_ST_MTIMESPEC_TV_NSEC
archive_entry_set_mtime(entry, st->st_mtime,
st->st_mtimespec.tv_nsec);
#elif HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC
archive_entry_set_mtime(entry, st->st_mtime,
st->st_mtim.tv_nsec);
#elif HAVE_STRUCT_STAT_ST_MTIME_N
archive_entry_set_mtime(entry, st->st_mtime,
st->st_mtime_n);
#elif HAVE_STRUCT_STAT_ST_UMTIME
archive_entry_set_mtime(entry, st->st_mtime,
st->st_umtime*1000);
#elif HAVE_STRUCT_STAT_ST_MTIME_USEC
archive_entry_set_mtime(entry, st->st_mtime,
st->st_mtime_usec*1000);
#else
archive_entry_set_mtime(entry, st->st_mtime, 0);
#endif
}
if ((parsed_kws & MTREE_HAS_NLINK) == 0 ||
(parsed_kws & MTREE_HAS_NOCHANGE) != 0)
archive_entry_set_nlink(entry, st->st_nlink);
if ((parsed_kws & MTREE_HAS_PERM) == 0 ||
(parsed_kws & MTREE_HAS_NOCHANGE) != 0)
archive_entry_set_perm(entry, st->st_mode);
if ((parsed_kws & MTREE_HAS_SIZE) == 0 ||
(parsed_kws & MTREE_HAS_NOCHANGE) != 0)
archive_entry_set_size(entry, st->st_size);
archive_entry_set_ino(entry, st->st_ino);
archive_entry_set_dev(entry, st->st_dev);
archive_entry_linkify(mtree->resolver, &entry, &sparse_entry);
} else if (parsed_kws & MTREE_HAS_OPTIONAL) {
/*
* Couldn't open the entry, stat it or the on-disk type
* didn't match. If this entry is optional, just ignore it
* and read the next header entry.
*/
*use_next = 1;
return ARCHIVE_OK;
}
mtree->cur_size = archive_entry_size(entry);
mtree->offset = 0;
return r;
}
static void
parse_rockridge(struct iso9660 *iso9660, struct file_info *file,
const unsigned char *p, const unsigned char *end)
{
(void)iso9660; /* UNUSED */
while (p + 4 < end /* Enough space for another entry. */
&& p[0] >= 'A' && p[0] <= 'Z' /* Sanity-check 1st char of name. */
&& p[1] >= 'A' && p[1] <= 'Z' /* Sanity-check 2nd char of name. */
&& p + p[2] <= end) { /* Sanity-check length. */
const unsigned char *data = p + 4;
int data_length = p[2] - 4;
int version = p[3];
/*
* Yes, each 'if' here does test p[0] again.
* Otherwise, the fall-through handling to catch
* unsupported extensions doesn't work.
*/
switch(p[0]) {
case 'C':
if (p[0] == 'C' && p[1] == 'E' && version == 1) {
/*
* CE extension comprises:
* 8 byte sector containing extension
* 8 byte offset w/in above sector
* 8 byte length of continuation
*/
file->ce_offset = toi(data, 4)
* iso9660->logical_block_size
+ toi(data + 8, 4);
file->ce_size = toi(data + 16, 4);
break;
}
/* FALLTHROUGH */
case 'N':
if (p[0] == 'N' && p[1] == 'M' && version == 1
&& *data == 0) {
/* NM extension with flag byte == 0 */
/*
* NM extension comprises:
* one byte flag
* rest is long name
*/
/* TODO: Obey flags. */
char *old_name = file->name;
data++; /* Skip flag byte. */
data_length--;
file->name = (char *)malloc(data_length + 1);
if (file->name != NULL) {
free(old_name);
memcpy(file->name, data, data_length);
file->name[data_length] = '\0';
} else
file->name = old_name;
break;
}
/* FALLTHROUGH */
case 'P':
if (p[0] == 'P' && p[1] == 'D' && version == 1) {
/*
* PD extension is padding;
* contents are always ignored.
*/
break;
}
if (p[0] == 'P' && p[1] == 'X' && version == 1) {
/*
* PX extension comprises:
* 8 bytes for mode,
* 8 bytes for nlinks,
* 8 bytes for uid,
* 8 bytes for gid,
* 8 bytes for inode.
*/
if (data_length == 32) {
file->mode = toi(data, 4);
file->nlinks = toi(data + 8, 4);
file->uid = toi(data + 16, 4);
file->gid = toi(data + 24, 4);
file->inode = toi(data + 32, 4);
}
break;
}
/* FALLTHROUGH */
case 'R':
if (p[0] == 'R' && p[1] == 'R' && version == 1) {
iso9660->seenRockridge = 1;
/*
* RR extension comprises:
* one byte flag value
*/
/* TODO: Handle RR extension. */
break;
}
/* FALLTHROUGH */
case 'S':
if (p[0] == 'S' && p[1] == 'L' && version == 1
&& *data == 0) {
int cont = 1;
/* SL extension with flags == 0 */
/* TODO: handle non-zero flag values. */
data++; /* Skip flag byte. */
data_length--;
while (data_length > 0) {
unsigned char flag = *data++;
unsigned char nlen = *data++;
data_length -= 2;
if (cont == 0)
archive_strcat(&file->symlink, "/");
cont = 0;
switch(flag) {
case 0x01: /* Continue */
archive_strncat(&file->symlink,
(const char *)data, nlen);
cont = 1;
break;
case 0x02: /* Current */
archive_strcat(&file->symlink, ".");
break;
case 0x04: /* Parent */
archive_strcat(&file->symlink, "..");
break;
case 0x08: /* Root */
case 0x10: /* Volume root */
archive_string_empty(&file->symlink);
break;
case 0x20: /* Hostname */
archive_strcat(&file->symlink, "hostname");
break;
case 0:
archive_strncat(&file->symlink,
(const char *)data, nlen);
break;
default:
/* TODO: issue a warning ? */
break;
}
data += nlen;
data_length -= nlen;
}
break;
}
if (p[0] == 'S' && p[1] == 'P'
&& version == 1 && data_length == 7
&& data[0] == (unsigned char)'\xbe'
&& data[1] == (unsigned char)'\xef') {
/*
* SP extension stores the suspOffset
* (Number of bytes to skip between
* filename and SUSP records.)
* It is mandatory by the SUSP standard
* (IEEE 1281).
*
* It allows SUSP to coexist with
* non-SUSP uses of the System
* Use Area by placing non-SUSP data
* before SUSP data.
*
* TODO: Add a check for 'SP' in
* first directory entry, disable all SUSP
* processing if not found.
*/
iso9660->suspOffset = data[2];
break;
}
if (p[0] == 'S' && p[1] == 'T'
&& data_length == 0 && version == 1) {
/*
* ST extension marks end of this
* block of SUSP entries.
*
* It allows SUSP to coexist with
* non-SUSP uses of the System
* Use Area by placing non-SUSP data
* after SUSP data.
*/
return;
}
case 'T':
if (p[0] == 'T' && p[1] == 'F' && version == 1) {
char flag = data[0];
/*
* TF extension comprises:
* one byte flag
* create time (optional)
* modify time (optional)
* access time (optional)
* attribute time (optional)
* Time format and presence of fields
* is controlled by flag bits.
*/
data++;
if (flag & 0x80) {
/* Use 17-byte time format. */
if (flag & 1) /* Create time. */
data += 17;
if (flag & 2) { /* Modify time. */
file->mtime = isodate17(data);
data += 17;
}
if (flag & 4) { /* Access time. */
file->atime = isodate17(data);
data += 17;
}
if (flag & 8) { /* Attribute time. */
file->ctime = isodate17(data);
data += 17;
}
} else {
/* Use 7-byte time format. */
if (flag & 1) /* Create time. */
data += 7;
if (flag & 2) { /* Modify time. */
file->mtime = isodate7(data);
data += 7;
}
if (flag & 4) { /* Access time. */
file->atime = isodate7(data);
data += 7;
}
if (flag & 8) { /* Attribute time. */
file->ctime = isodate7(data);
data += 7;
}
}
break;
}
/* FALLTHROUGH */
default:
/* The FALLTHROUGHs above leave us here for
* any unsupported extension. */
{
const unsigned char *t;
fprintf(stderr, "\nUnsupported RRIP extension for %s\n", file->name);
fprintf(stderr, " %c%c(%d):", p[0], p[1], data_length);
for (t = data; t < data + data_length && t < data + 16; t++)
fprintf(stderr, " %02x", *t);
fprintf(stderr, "\n");
}
}
p += p[2];
}
}
static int
archive_write_mtree_header(struct archive_write *a,
struct archive_entry *entry)
{
struct mtree_writer *mtree= a->format_data;
struct archive_string *str;
const char *path;
mtree->entry = archive_entry_clone(entry);
path = archive_entry_pathname(mtree->entry);
if (mtree->first) {
mtree->first = 0;
archive_strcat(&mtree->buf, "#mtree\n");
}
if (mtree->set.output)
set_global(mtree, entry);
archive_string_empty(&mtree->ebuf);
str = (mtree->indent)? &mtree->ebuf : &mtree->buf;
if (!mtree->dironly || archive_entry_filetype(entry) == AE_IFDIR)
mtree_quote(str, path);
mtree->entry_bytes_remaining = archive_entry_size(entry);
if ((mtree->keys & F_CKSUM) != 0 &&
archive_entry_filetype(entry) == AE_IFREG) {
mtree->compute_sum |= F_CKSUM;
mtree->crc = 0;
mtree->crc_len = 0;
} else
mtree->compute_sum &= ~F_CKSUM;
#ifdef ARCHIVE_HAS_MD5
if ((mtree->keys & F_MD5) != 0 &&
archive_entry_filetype(entry) == AE_IFREG) {
mtree->compute_sum |= F_MD5;
archive_md5_init(&mtree->md5ctx);
} else
mtree->compute_sum &= ~F_MD5;
#endif
#ifdef ARCHIVE_HAS_RMD160
if ((mtree->keys & F_RMD160) != 0 &&
archive_entry_filetype(entry) == AE_IFREG) {
mtree->compute_sum |= F_RMD160;
archive_rmd160_init(&mtree->rmd160ctx);
} else
mtree->compute_sum &= ~F_RMD160;
#endif
#ifdef ARCHIVE_HAS_SHA1
if ((mtree->keys & F_SHA1) != 0 &&
archive_entry_filetype(entry) == AE_IFREG) {
mtree->compute_sum |= F_SHA1;
archive_sha1_init(&mtree->sha1ctx);
} else
mtree->compute_sum &= ~F_SHA1;
#endif
#ifdef ARCHIVE_HAS_SHA256
if ((mtree->keys & F_SHA256) != 0 &&
archive_entry_filetype(entry) == AE_IFREG) {
mtree->compute_sum |= F_SHA256;
archive_sha256_init(&mtree->sha256ctx);
} else
mtree->compute_sum &= ~F_SHA256;
#endif
#ifdef ARCHIVE_HAS_SHA384
if ((mtree->keys & F_SHA384) != 0 &&
archive_entry_filetype(entry) == AE_IFREG) {
mtree->compute_sum |= F_SHA384;
archive_sha384_init(&mtree->sha384ctx);
} else
mtree->compute_sum &= ~F_SHA384;
#endif
#ifdef ARCHIVE_HAS_SHA512
if ((mtree->keys & F_SHA512) != 0 &&
archive_entry_filetype(entry) == AE_IFREG) {
mtree->compute_sum |= F_SHA512;
archive_sha512_init(&mtree->sha512ctx);
} else
mtree->compute_sum &= ~F_SHA512;
#endif
return (ARCHIVE_OK);
}
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);
}
int
__archive_read_program(struct archive_read_filter *self, const char *cmd)
{
struct program_filter *state;
static const size_t out_buf_len = 65536;
char *out_buf;
const char *prefix = "Program: ";
pid_t child;
size_t l;
l = strlen(prefix) + strlen(cmd) + 1;
state = (struct program_filter *)calloc(1, sizeof(*state));
out_buf = (char *)malloc(out_buf_len);
if (state == NULL || out_buf == NULL ||
archive_string_ensure(&state->description, l) == NULL) {
archive_set_error(&self->archive->archive, ENOMEM,
"Can't allocate input data");
if (state != NULL) {
archive_string_free(&state->description);
free(state);
}
free(out_buf);
return (ARCHIVE_FATAL);
}
archive_strcpy(&state->description, prefix);
archive_strcat(&state->description, cmd);
self->code = ARCHIVE_FILTER_PROGRAM;
self->name = state->description.s;
state->out_buf = out_buf;
state->out_buf_len = out_buf_len;
child = __archive_create_child(cmd, &state->child_stdin,
&state->child_stdout);
if (child == -1) {
free(state->out_buf);
free(state);
archive_set_error(&self->archive->archive, EINVAL,
"Can't initialize filter; unable to run program \"%s\"",
cmd);
return (ARCHIVE_FATAL);
}
#if defined(_WIN32) && !defined(__CYGWIN__)
state->child = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, child);
if (state->child == NULL) {
child_stop(self, state);
free(state->out_buf);
free(state);
archive_set_error(&self->archive->archive, EINVAL,
"Can't initialize filter; unable to run program \"%s\"",
cmd);
return (ARCHIVE_FATAL);
}
#else
state->child = child;
#endif
self->data = state;
self->read = program_filter_read;
self->skip = NULL;
self->close = program_filter_close;
/* XXX Check that we can read at least one byte? */
return (ARCHIVE_OK);
}
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
slurp_central_directory(struct archive_read *a, struct zip *zip)
{
unsigned i;
int64_t correction;
static const struct archive_rb_tree_ops rb_ops = {
&cmp_node, &cmp_key
};
static const struct archive_rb_tree_ops rb_rsrc_ops = {
&rsrc_cmp_node, &rsrc_cmp_key
};
/*
* Consider the archive file we are reading may be SFX.
* So we have to calculate a SFX header size to revise
* ZIP header offsets.
*/
correction = zip->end_of_central_directory_offset -
(zip->central_directory_offset + zip->central_directory_size);
/* The central directory offset is relative value, and so
* we revise this offset for SFX. */
zip->central_directory_offset += correction;
__archive_read_seek(a, zip->central_directory_offset, SEEK_SET);
zip->offset = zip->central_directory_offset;
__archive_rb_tree_init(&zip->tree, &rb_ops);
__archive_rb_tree_init(&zip->tree_rsrc, &rb_rsrc_ops);
zip->zip_entries = calloc(zip->central_directory_entries,
sizeof(struct zip_entry));
for (i = 0; i < zip->central_directory_entries; ++i) {
struct zip_entry *zip_entry = &zip->zip_entries[i];
size_t filename_length, extra_length, comment_length;
uint32_t external_attributes;
const char *name, *p, *r;
if ((p = __archive_read_ahead(a, 46, NULL)) == NULL)
return ARCHIVE_FATAL;
if (memcmp(p, "PK\001\002", 4) != 0) {
archive_set_error(&a->archive,
-1, "Invalid central directory signature");
return ARCHIVE_FATAL;
}
zip->have_central_directory = 1;
/* version = p[4]; */
zip_entry->system = p[5];
/* version_required = archive_le16dec(p + 6); */
zip_entry->flags = archive_le16dec(p + 8);
zip_entry->compression = (char)archive_le16dec(p + 10);
zip_entry->mtime = zip_time(p + 12);
zip_entry->crc32 = archive_le32dec(p + 16);
zip_entry->compressed_size = archive_le32dec(p + 20);
zip_entry->uncompressed_size = archive_le32dec(p + 24);
filename_length = archive_le16dec(p + 28);
extra_length = archive_le16dec(p + 30);
comment_length = archive_le16dec(p + 32);
/* disk_start = archive_le16dec(p + 34); */ /* Better be zero. */
/* internal_attributes = archive_le16dec(p + 36); */ /* text bit */
external_attributes = archive_le32dec(p + 38);
zip_entry->local_header_offset =
archive_le32dec(p + 42) + correction;
/* If we can't guess the mode, leave it zero here;
when we read the local file header we might get
more information. */
zip_entry->mode = 0;
if (zip_entry->system == 3) {
zip_entry->mode = external_attributes >> 16;
}
/*
* Mac resource fork files are stored under the
* "__MACOSX/" directory, so we should check if
* it is.
*/
/* Make sure we have the file name. */
if ((p = __archive_read_ahead(a, 46 + filename_length, NULL))
== NULL)
return ARCHIVE_FATAL;
name = p + 46;
r = rsrc_basename(name, filename_length);
if (filename_length >= 9 &&
strncmp("__MACOSX/", name, 9) == 0) {
/* If this file is not a resource fork nor
* a directory. We should treat it as a non
* resource fork file to expose it. */
if (name[filename_length-1] != '/' &&
(r - name < 3 || r[0] != '.' || r[1] != '_')) {
__archive_rb_tree_insert_node(&zip->tree,
&zip_entry->node);
/* Expose its parent directories. */
expose_parent_dirs(zip, name, filename_length);
} else {
/* This file is a resource fork file or
* a directory. */
archive_strncpy(&(zip_entry->rsrcname), name,
filename_length);
__archive_rb_tree_insert_node(&zip->tree_rsrc,
&zip_entry->node);
}
} else {
/* Generate resource fork name to find its resource
* file at zip->tree_rsrc. */
archive_strcpy(&(zip_entry->rsrcname), "__MACOSX/");
archive_strncat(&(zip_entry->rsrcname), name, r - name);
archive_strcat(&(zip_entry->rsrcname), "._");
archive_strncat(&(zip_entry->rsrcname),
name + (r - name), filename_length - (r - name));
/* Register an entry to RB tree to sort it by
* file offset. */
__archive_rb_tree_insert_node(&zip->tree,
&zip_entry->node);
}
/* We don't read the filename until we get to the
local file header. Reading it here would speed up
table-of-contents operations (removing the need to
find and read local file header to get the
filename) at the cost of requiring a lot of extra
space. */
/* We don't read the extra block here. We assume it
will be duplicated at the local file header. */
__archive_read_consume(a,
46 + filename_length + extra_length + comment_length);
}
