mirrors/tor
1
0
Fork 0
mirror of https://gitlab.torproject.org/tpo/core/tor.git synced 2024-11-20 10:12:15 +01:00
Code Issues Projects Releases Wiki Activity

Detect tor_addr_to_str failure in tor_dup_addr.

Browse Source 
This avoids a possible strdup of an uninitialized buffer.

Fixes 4529; fix on 0.2.1.3-alpha; reported by troll_un.
This commit is contained in:
Nick Mathewson 2011-11-23 23:04:10 -05:00
parent fbf1c5ee79
commit 3ebe960f3f
2 changed files with 10 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
changes/bug4529 Normal file
View File

@ -0,0 +1,5 @@
o Minor bufixes:
- If we had ever tried to call tor_addr_to_str on an address of
unknown type, we would have done a strdup on an uninitialized
buffer. Now we won't. Fixes bug 4529; bugfix on 0.2.1.3-alpha.
Reported by "troll_un".

7
src/common/address.c
View File

@ -945,8 +945,11 @@ char *
tor_dup_addr(const tor_addr_t *addr)
{
char buf[TOR_ADDR_BUF_LEN];
tor_addr_to_str(buf, addr, sizeof(buf), 0);
return tor_strdup(buf);
if (tor_addr_to_str(buf, addr, sizeof(buf), 0)) {
return tor_strdup(buf);
} else {
return tor_strdup("<unknown address type>");
}
}
/** Return a string representing the address <b>addr</b>. This string is