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scan-build: Add a check for result from getaddrinfo

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As documented, getaddrinfo always sets its result when it returns
no error.  But scan-build doesn't know that, and thinks we might
be def
This commit is contained in:
Nick Mathewson 2014-04-18 20:26:47 -04:00
parent 0cca8dc35a
commit 08325b58be
1 changed files with 3 additions and 1 deletions
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4
src/common/address.c
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@ -236,7 +236,9 @@ tor_addr_lookup(const char *name, uint16_t family, tor_addr_t *addr)
hints.ai_family = family; hints.ai_family = family;
hints.ai_socktype = SOCK_STREAM; hints.ai_socktype = SOCK_STREAM;
err = sandbox_getaddrinfo(name, NULL, &hints, &res); err = sandbox_getaddrinfo(name, NULL, &hints, &res);
if (!err) { /* The check for 'res' here shouldn't be necessary, but it makes static
* analysis tools happy. */
if (!err && res) {
best = NULL; best = NULL;
for (res_p = res; res_p; res_p = res_p->ai_next) { for (res_p = res; res_p; res_p = res_p->ai_next) {
if (family == AF_UNSPEC) { if (family == AF_UNSPEC) {