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Finish off / fix ability to specify an attribute name. 

2002/12/29 12:03:45+00:00 cantab.net!aia21
Add ability to specify an attribute name in addition to the attribute type.

(Logical change 1.72)
edge.strict_endians
cantab.net!aia21 2002-12-29 12:17:35 +00:00
parent 6258afc6dd
commit a86ad90a97
1 changed files with 43 additions and 9 deletions
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52
ntfsprogs/ntfstruncate.c
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@ -71,6 +71,8 @@ BOOL success = FALSE;
char *dev_name;
s64 inode;
u32 attr_type;
uchar_t *attr_name = NULL;
u32 attr_name_len;
s64 new_len;
ntfs_volume *vol;
@ -532,9 +534,11 @@ void usage(void)
fprintf(stderr, "This utility will truncate a specified attribute "
"belonging to a specified\ninode, i.e. file or "
"directory, to a specified length.\n\n"
"Usage: %s [-fhnqvV] device inode [attribute-type] "
"new-length\n If attribute-type is not "
"specified, 0x80 (i.e. $DATA) is assumed.\n",
"Usage: %s [-fhnqvV] device inode [attr-type "
"[attr-name]] new-length\n If "
"attr-type is not specified, 0x80 (i.e. $DATA) "
"is assumed.\n If attr-name is not "
"specified, an unnamed attribute is assumed.\n",
EXEC_NAME);
exit(1);
}
@ -592,22 +596,45 @@ void parse_options(int argc, char *argv[])
/* Get the attribute type, if specified. */
s = argv[optind++];
if (optind == argc)
if (optind == argc) {
attr_type = AT_DATA;
else {
attr_name = AT_UNNAMED;
attr_name_len = 0;
} else {
unsigned long ul;
ul = strtoul(s, &s2, 0);
if (*s2 || !ul || (ul >= ULONG_MAX && errno == ERANGE))
err_exit("Invalid attribute type: %s\n", s);
err_exit("Invalid attribute type %s: %s\n", s,
strerror(errno));
attr_type = ul;
/* Get the attribute name, if specified. */
s = argv[optind++];
if (optind != argc) {
/* Convert the string to little endian Unicode. */
attr_name_len = ntfs_mbstoucs(s, &attr_name, 0);
if (attr_name_len < 0)
err_exit("Invalid attribute name \"%s\": %s\n",
s, strerror(errno));
if (optind != argc)
usage();
/* Keep hold of the original string. */
s2 = s;
s = argv[optind++];
if (optind != argc)
usage();
} else {
attr_name = AT_UNNAMED;
attr_name_len = 0;
}
}
Dprintf("attribute type = 0x%x\n", attr_type);
if (attr_name == AT_UNNAMED)
Dprintf("attribute name = \"\" (UNNAMED)\n");
else
Dprintf("attribute name = \"%s\" (length %i Unicode "
"characters)\n", s2, attr_name_len);
/* Get the new length. */
ll = strtoll(s, &s2, 0);
@ -642,6 +669,9 @@ void ntfstruncate_exit(void)
if (err == -1)
fprintf(stderr, "Warning: Could not umount %s: %s\n", dev_name,
strerror(errno));
/* Free the attribute name if it exists. */
if (attr_name && attr_name != AT_UNNAMED)
free(attr_name);
}
int main(int argc, char **argv)
@ -719,7 +749,7 @@ int main(int argc, char **argv)
strerror(errno));
/* Open the specified attribute. */
na = ntfs_attr_open(ni, attr_type, NULL, 0);
na = ntfs_attr_open(ni, attr_type, attr_name, attr_name_len);
if (!na)
err_exit("Failed to open attribute 0x%x: %s\n", attr_type,
strerror(errno));
@ -765,6 +795,10 @@ int main(int argc, char **argv)
fprintf(stderr, "Warning: Failed to umount %s: %s\n", dev_name,
strerror(errno));
/* Free the attribute name if it exists. */
if (attr_name && attr_name != AT_UNNAMED)
free(attr_name);
/* Finally, disable our ntfstruncate_exit() handler. */
success = TRUE;