static int64_t
mtree_atol(char **p)
{
if (**p != '0')
return mtree_atol10(p);
if ((*p)[1] == 'x' || (*p)[1] == 'X') {
*p += 2;
return mtree_atol16(p);
}
return mtree_atol8(p);
}
/*
* Parse a single keyword and its value.
*/
static int
parse_keyword(struct archive_read *a, struct mtree *mtree,
struct archive_entry *entry, struct mtree_option *opt, int *parsed_kws)
{
char *val, *key;
key = opt->value;
if (*key == '\0')
return (ARCHIVE_OK);
if (strcmp(key, "nochange") == 0) {
*parsed_kws |= MTREE_HAS_NOCHANGE;
return (ARCHIVE_OK);
}
if (strcmp(key, "optional") == 0) {
*parsed_kws |= MTREE_HAS_OPTIONAL;
return (ARCHIVE_OK);
}
if (strcmp(key, "ignore") == 0) {
/*
* The mtree processing is not recursive, so
* recursion will only happen for explicitly listed
* entries.
*/
return (ARCHIVE_OK);
}
val = strchr(key, '=');
if (val == NULL) {
archive_set_error(&a->archive, ARCHIVE_ERRNO_FILE_FORMAT,
"Malformed attribute \"%s\" (%d)", key, key[0]);
return (ARCHIVE_WARN);
}
*val = '\0';
++val;
switch (key[0]) {
case 'c':
if (strcmp(key, "content") == 0
|| strcmp(key, "contents") == 0) {
parse_escapes(val, NULL);
archive_strcpy(&mtree->contents_name, val);
break;
}
if (strcmp(key, "cksum") == 0)
break;
case 'd':
if (strcmp(key, "device") == 0) {
*parsed_kws |= MTREE_HAS_DEVICE;
return parse_device(&a->archive, entry, val);
}
case 'f':
if (strcmp(key, "flags") == 0) {
*parsed_kws |= MTREE_HAS_FFLAGS;
archive_entry_copy_fflags_text(entry, val);
break;
}
case 'g':
if (strcmp(key, "gid") == 0) {
*parsed_kws |= MTREE_HAS_GID;
archive_entry_set_gid(entry, mtree_atol10(&val));
break;
}
if (strcmp(key, "gname") == 0) {
*parsed_kws |= MTREE_HAS_GNAME;
archive_entry_copy_gname(entry, val);
break;
}
case 'l':
if (strcmp(key, "link") == 0) {
archive_entry_copy_symlink(entry, val);
break;
}
case 'm':
if (strcmp(key, "md5") == 0 || strcmp(key, "md5digest") == 0)
break;
if (strcmp(key, "mode") == 0) {
if (val[0] >= '0' && val[0] <= '9') {
*parsed_kws |= MTREE_HAS_PERM;
archive_entry_set_perm(entry,
(mode_t)mtree_atol8(&val));
} else {
archive_set_error(&a->archive,
ARCHIVE_ERRNO_FILE_FORMAT,
"Symbolic mode \"%s\" unsupported", val);
return ARCHIVE_WARN;
}
break;
}
case 'n':
if (strcmp(key, "nlink") == 0) {
*parsed_kws |= MTREE_HAS_NLINK;
archive_entry_set_nlink(entry,
(unsigned int)mtree_atol10(&val));
break;
}
case 'r':
if (strcmp(key, "rmd160") == 0 ||
strcmp(key, "rmd160digest") == 0)
break;
case 's':
if (strcmp(key, "sha1") == 0 || strcmp(key, "sha1digest") == 0)
break;
if (strcmp(key, "sha256") == 0 ||
strcmp(key, "sha256digest") == 0)
break;
if (strcmp(key, "sha384") == 0 ||
strcmp(key, "sha384digest") == 0)
break;
if (strcmp(key, "sha512") == 0 ||
strcmp(key, "sha512digest") == 0)
break;
if (strcmp(key, "size") == 0) {
archive_entry_set_size(entry, mtree_atol10(&val));
break;
}
case 't':
if (strcmp(key, "tags") == 0) {
/*
* Comma delimited list of tags.
* Ignore the tags for now, but the interface
* should be extended to allow inclusion/exclusion.
*/
break;
}
if (strcmp(key, "time") == 0) {
int64_t m;
int64_t my_time_t_max = get_time_t_max();
int64_t my_time_t_min = get_time_t_min();
long ns;
*parsed_kws |= MTREE_HAS_MTIME;
m = mtree_atol10(&val);
/* Replicate an old mtree bug:
* 123456789.1 represents 123456789
* seconds and 1 nanosecond. */
if (*val == '.') {
++val;
ns = (long)mtree_atol10(&val);
} else
ns = 0;
if (m > my_time_t_max)
m = my_time_t_max;
else if (m < my_time_t_min)
m = my_time_t_min;
archive_entry_set_mtime(entry, (time_t)m, ns);
break;
}
if (strcmp(key, "type") == 0) {
switch (val[0]) {
case 'b':
if (strcmp(val, "block") == 0) {
archive_entry_set_filetype(entry, AE_IFBLK);
break;
}
case 'c':
if (strcmp(val, "char") == 0) {
archive_entry_set_filetype(entry, AE_IFCHR);
break;
}
case 'd':
if (strcmp(val, "dir") == 0) {
archive_entry_set_filetype(entry, AE_IFDIR);
break;
}
case 'f':
if (strcmp(val, "fifo") == 0) {
archive_entry_set_filetype(entry, AE_IFIFO);
break;
}
if (strcmp(val, "file") == 0) {
archive_entry_set_filetype(entry, AE_IFREG);
break;
}
case 'l':
if (strcmp(val, "link") == 0) {
archive_entry_set_filetype(entry, AE_IFLNK);
break;
}
default:
archive_set_error(&a->archive,
ARCHIVE_ERRNO_FILE_FORMAT,
"Unrecognized file type \"%s\"; assuming \"file\"", val);
archive_entry_set_filetype(entry, AE_IFREG);
return (ARCHIVE_WARN);
}
*parsed_kws |= MTREE_HAS_TYPE;
break;
}
case 'u':
if (strcmp(key, "uid") == 0) {
*parsed_kws |= MTREE_HAS_UID;
archive_entry_set_uid(entry, mtree_atol10(&val));
break;
}
if (strcmp(key, "uname") == 0) {
*parsed_kws |= MTREE_HAS_UNAME;
archive_entry_copy_uname(entry, val);
break;
}
default:
archive_set_error(&a->archive, ARCHIVE_ERRNO_FILE_FORMAT,
"Unrecognized key %s=%s", key, val);
return (ARCHIVE_WARN);
}
return (ARCHIVE_OK);
}
/*
* Read a single mtree keyword and either set or unset it in `data'.
*/
static int
read_keyword(struct mtree_reader *r, char *s, struct mtree_entry_data *data, int set)
{
char *value;
char name[MAXPATHLEN];
const char *endptr;
uint64_t keyword;
int64_t num;
value = strchr(s, '=');
if (value != NULL)
*value++ = '\0';
keyword = mtree_keyword_parse(s);
if (keyword == 0) {
/*
* Unsupported keyword, this is not an error.
*/
WARN("Ignoring unknown keyword `%s'", s);
return (0);
}
if (!set || (r->spec_keywords & keyword) == 0) {
/* Unset the keyword. */
data->keywords &= ~keyword;
return (0);
}
/*
* Read the keyword value.
*
* Wherever possible, the value is validated and error is indicated
* in case the value is invalid or missing.
*/
errno = 0;
switch (keyword) {
case MTREE_KEYWORD_CKSUM:
if (value == NULL) {
errno = ENOENT;
break;
}
num = mtree_atol(value, &endptr);
if (num < 0 || num > UINT32_MAX || *endptr != '\0')
errno = EINVAL;
else
data->cksum = (uint32_t)num;
break;
case MTREE_KEYWORD_CONTENTS:
if (value == NULL) {
errno = ENOENT;
break;
}
if (strnunvis(name, sizeof(name), value) == -1)
errno = ENAMETOOLONG;
else
mtree_copy_string(&data->contents, value);
break;
case MTREE_KEYWORD_DEVICE:
if (value == NULL) {
errno = ENOENT;
break;
}
if (data->device == NULL) {
data->device = mtree_device_create();
if (data->device == NULL)
break;
}
if (mtree_device_parse(data->device, value) == -1)
mtree_reader_set_error(r, errno, "%s",
mtree_device_get_error(data->device));
break;
case MTREE_KEYWORD_FLAGS:
if (value == NULL) {
errno = ENOENT;
break;
}
mtree_copy_string(&data->flags, value);
break;
case MTREE_KEYWORD_GID:
if (value == NULL) {
errno = ENOENT;
break;
}
data->st_gid = mtree_atol(value, &endptr);
if (*endptr != '\0')
errno = EINVAL;
break;
case MTREE_KEYWORD_GNAME:
if (value == NULL) {
errno = ENOENT;
break;
}
mtree_copy_string(&data->gname, value);
break;
case MTREE_KEYWORD_IGNORE:
/* No value */
break;
case MTREE_KEYWORD_INODE:
if (value == NULL) {
errno = ENOENT;
break;
}
num = mtree_atol(value, &endptr);
if (num < 0 || *endptr != '\0')
errno = EINVAL;
else
data->st_ino = (uint64_t)num;
break;
case MTREE_KEYWORD_LINK:
if (value == NULL) {
errno = ENOENT;
break;
}
if (strnunvis(name, sizeof(name), value) == -1)
errno = ENAMETOOLONG;
else
mtree_copy_string(&data->link, name);
break;
case MTREE_KEYWORD_MD5:
case MTREE_KEYWORD_MD5DIGEST:
if (value == NULL) {
errno = ENOENT;
break;
}
mtree_copy_string(&data->md5digest, value);
break;
case MTREE_KEYWORD_MODE:
if (value == NULL) {
errno = ENOENT;
break;
}
if (value[0] >= '0' && value[0] <= '9') {
data->st_mode = (int)mtree_atol8(value, &endptr);
if (*endptr != '\0')
errno = EINVAL;
} else
errno = EINVAL;
break;
case MTREE_KEYWORD_NLINK:
if (value == NULL) {
errno = ENOENT;
break;
}
data->st_nlink = mtree_atol(value, &endptr);
if (*endptr != '\0')
errno = EINVAL;
break;
case MTREE_KEYWORD_NOCHANGE:
/* No value */
break;
case MTREE_KEYWORD_OPTIONAL:
/* No value */
break;
case MTREE_KEYWORD_RESDEVICE:
if (value == NULL) {
errno = ENOENT;
break;
}
if (data->resdevice == NULL) {
data->resdevice = mtree_device_create();
if (data->resdevice == NULL)
break;
}
if (mtree_device_parse(data->resdevice, value) == -1)
mtree_reader_set_error(r, errno, "%s",
mtree_device_get_error(data->resdevice));
break;
case MTREE_KEYWORD_RIPEMD160DIGEST:
case MTREE_KEYWORD_RMD160:
case MTREE_KEYWORD_RMD160DIGEST:
if (value == NULL) {
errno = ENOENT;
break;
}
mtree_copy_string(&data->rmd160digest, value);
break;
case MTREE_KEYWORD_SHA1:
case MTREE_KEYWORD_SHA1DIGEST:
if (value == NULL) {
errno = ENOENT;
break;
}
mtree_copy_string(&data->sha1digest, value);
break;
case MTREE_KEYWORD_SHA256:
case MTREE_KEYWORD_SHA256DIGEST:
if (value == NULL) {
errno = ENOENT;
break;
}
mtree_copy_string(&data->sha256digest, value);
break;
case MTREE_KEYWORD_SHA384:
case MTREE_KEYWORD_SHA384DIGEST:
if (value == NULL) {
errno = ENOENT;
break;
}
mtree_copy_string(&data->sha384digest, value);
break;
case MTREE_KEYWORD_SHA512:
case MTREE_KEYWORD_SHA512DIGEST:
if (value == NULL) {
errno = ENOENT;
break;
}
mtree_copy_string(&data->sha512digest, value);
break;
case MTREE_KEYWORD_SIZE:
if (value == NULL) {
errno = ENOENT;
break;
}
/*
* It doesn't make a lot of sense to allow negative values
* here, but this value is related to off_t, which is signed.
*/
data->st_size = mtree_atol(value, &endptr);
if (*endptr != '\0')
errno = EINVAL;
break;
case MTREE_KEYWORD_TAGS:
if (value == NULL) {
errno = ENOENT;
break;
}
mtree_copy_string(&data->tags, value);
break;
case MTREE_KEYWORD_TIME:
if (value == NULL) {
errno = ENOENT;
break;
}
num = mtree_atol10(value, &endptr);
if (num < TIME_T_MIN || num > TIME_T_MAX) {
errno = EINVAL;
break;
}
if (*endptr != '\0' && *endptr != '.') {
errno = EINVAL;
break;
}
data->st_mtim.tv_sec = (time_t)num;
if (*endptr == '.') {
num = mtree_atol10(endptr + 1, &endptr);
if (*endptr != '\0') {
errno = EINVAL;
break;
}
data->st_mtim.tv_nsec = (long)num;
} else
data->st_mtim.tv_nsec = 0;
break;
case MTREE_KEYWORD_TYPE:
if (value == NULL) {
errno = ENOENT;
break;
}
data->type = mtree_entry_type_parse(value);
if (data->type == MTREE_ENTRY_UNKNOWN)
errno = EINVAL;
break;
case MTREE_KEYWORD_UID:
if (value == NULL) {
errno = ENOENT;
break;
}
data->st_uid = mtree_atol(value, &endptr);
if (*endptr != '\0')
errno = EINVAL;
break;
case MTREE_KEYWORD_UNAME:
if (value == NULL) {
errno = ENOENT;
break;
}
mtree_copy_string(&data->uname, value);
break;
}
if (errno != 0) {
if (errno == ENOENT)
mtree_reader_set_error(r, errno, "`%s': missing keyword "
"value", s);
else if (errno == EINVAL)
mtree_reader_set_error(r, errno, "`%s': invalid keyword "
"value `%s'", s, value);
else if (errno == ENAMETOOLONG)
mtree_reader_set_error(r, errno, "`%s': file name too "
"long: `%s'", s, value);
else {
/* These should be just memory errors. */
mtree_reader_set_error(r, errno, NULL);
}
return (-1);
}
data->keywords |= keyword;
return (0);
}