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| author | Guy Harris <guy@alum.mit.edu> | 2020-05-06 22:31:19 -0700 |
|---|---|---|
| committer | Francois-Xavier Le Bail <devel.fx.lebail@orange.fr> | 2020-05-07 09:33:07 +0200 |
| commit | 5baf0ea8babe28e4cdece3f947158c71e8c3c7f7 (patch) | |
| tree | 83aa8f01aa4fb06386bcf06bce0ac686bf4b5b99 | |
| parent | c4dccd9999ac9272f6b68cbf80fd5f1dd7feef80 (diff) | |
| download | libpcap-1.9.tar.gz | |
linux: throw in a temporary hack to squelch MSAN warnings.libpcap-1.9
(cherry picked from commit 858a202b939671ad315396b9f09a27a58cfb31ca)
| -rw-r--r-- | pcap-linux.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/pcap-linux.c b/pcap-linux.c index ee40fa89..21de163b 100644 --- a/pcap-linux.c +++ b/pcap-linux.c @@ -2750,6 +2750,17 @@ get_if_flags(const char *name, bpf_u_int32 *flags, char *errbuf) memset(&ifr, 0, sizeof(ifr)); pcap_strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); info.cmd = ETHTOOL_GLINK; + /* + * XXX - while Valgrind handles SIOCETHTOOL and knows that + * the ETHTOOL_GLINK command sets the .data member of the + * structure, Memory Sanitizer doesn't yet do so: + * + * https://bugs.llvm.org/show_bug.cgi?id=45814 + * + * For now, we zero it out to squelch warnings; if the bug + * in question is fixed, we can remove this. + */ + info.data = 0; ifr.ifr_data = (caddr_t)&info; if (ioctl(sock, SIOCETHTOOL, &ifr) == -1) { int save_errno = errno; |