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filepath: don't parse multiple slashes as multiple dname bits.

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This causes all kinds of trouble if it occurs because most of the
code isn't prepared for it. So prevent that from happening except
on messages that were explicitly created that way.

Signed-off-by: Greg Farnum <gregory.farnum@dreamhost.com>
This commit is contained in:
Greg Farnum 2011-06-28 14:13:55 -07:00
parent d1fcffad6c
commit a851a1556f
1 changed files with 14 additions and 5 deletions
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17
src/include/filepath.h
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@ -42,6 +42,7 @@ class filepath {
* NOTE: this value is LAZILY maintained... i.e. it's a cache
*/
mutable vector<string> bits;
bool encoded;
void rebuild_path() {
path.clear();
@ -57,21 +58,28 @@ class filepath {
int nextslash = path.find('/', off);
if (nextslash < 0)
nextslash = path.length(); // no more slashes
if (((nextslash - off) > 0) || encoded) {
// skip empty components unless they were introduced deliberately
// see commit message for more detail
bits.push_back( path.substr(off,nextslash-off) );
assert(encoded || bits.back().size());
assert(encoded || bits.back().compare("/"));
}
off = nextslash+1;
}
}
public:
filepath() : ino(0) { }
filepath(const string& s, inodeno_t i) : ino(i), path(s) { }
filepath(const char* s, inodeno_t i) : ino(i), path(s) { }
filepath() : ino(0), encoded(false) { }
filepath(const string& s, inodeno_t i) : ino(i), path(s), encoded(false) { }
filepath(const char* s, inodeno_t i) : ino(i), path(s), encoded(false) { }
filepath(const filepath& o) {
ino = o.ino;
path = o.path;
bits = o.bits;
encoded = o.encoded;
}
filepath(inodeno_t i) : ino(i) { }
filepath(inodeno_t i) : ino(i), encoded(false) { }
void set_path(const char *s, inodeno_t b) {
path = s;
@ -187,6 +195,7 @@ class filepath {
::decode(struct_v, blp);
::decode(ino, blp);
::decode(path, blp);
encoded = true;
}
};