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r2215: I think I'm really close now. The key is to count the number of

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bad components once you've hit one, and keep track of how many
there are (going up a level removes one - maybe it needs to be ./
in order to be removed, need to check). And remember to change the error
code return depending on whether you're called from ff or chkpath.
Jeremy.
(This used to be commit beda1aee795971fa600af65caa749694bb0dfea5)
This commit is contained in:
Jeremy Allison 2004-09-03 20:05:29 +00:00 committed by Gerald (Jerry) Carter
parent 5480cfc26b
commit a34e4db047
1 changed files with 29 additions and 22 deletions
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51
source3/smbd/reply.c
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@ -49,6 +49,7 @@ NTSTATUS check_path_syntax(pstring destname, const pstring srcname, BOOL allow_w
const char *s = srcname;
NTSTATUS ret = NT_STATUS_OK;
BOOL start_of_name_component = True;
unsigned int num_bad_components = 0;
while (*s) {
if (IS_DIRECTORY_SEP(*s)) {
@ -97,32 +98,21 @@ NTSTATUS check_path_syntax(pstring destname, const pstring srcname, BOOL allow_w
}
s += 2; /* Else go past the .. */
/* We're still at the start of a name component, just the previous one. */
if (num_bad_components) {
/* Hmmm. Should we only decrement the bad_components if
we're removing a bad component ? Need to check this. JRA. */
num_bad_components--;
}
continue;
} else if ((s[0] == '.') && (s[1] == '\0')) {
} else if ((s[0] == '.') && ((s[1] == '\0') || IS_DIRECTORY_SEP(s[1]))) {
/* Component of pathname can't be "." only. */
ret = NT_STATUS_OBJECT_NAME_INVALID;
break;
} else if ((s[0] == '.') && IS_DIRECTORY_SEP(s[1])) {
/*
* No mb char starts with '.' so we're safe checking the directory separator here.
*/
/* Component of pathname can't be ".\\ANYTHING". */
/* "/./" or "\\.\\" fails with a different error depending on what is after it... */
/* Eat multiple '/' or '\\' */
for (s++; IS_DIRECTORY_SEP(*s); s++) {
;
}
if (*s == '\0') {
ret = NT_STATUS_OBJECT_NAME_INVALID;
} else {
ret = NT_STATUS_OBJECT_PATH_NOT_FOUND;
}
break;
num_bad_components++;
*d++ = *s++;
continue;
}
}
@ -160,6 +150,23 @@ NTSTATUS check_path_syntax(pstring destname, const pstring srcname, BOOL allow_w
}
}
start_of_name_component = False;
if (num_bad_components) {
num_bad_components++;
}
}
if (NT_STATUS_EQUAL(ret, NT_STATUS_OBJECT_NAME_INVALID)) {
/* For some strange reason being called from findfirst changes
the num_components number to cause the error return to change. JRA. */
if (allow_wcard_names) {
if (num_bad_components > 2) {
ret = NT_STATUS_OBJECT_PATH_NOT_FOUND;
}
} else {
if (num_bad_components > 1) {
ret = NT_STATUS_OBJECT_PATH_NOT_FOUND;
}
}
}
*d = '\0';