mirror of
https://github.com/archlinuxarm/PKGBUILDs.git
synced 2024-12-08 23:03:46 +00:00
130 lines
3.6 KiB
Diff
130 lines
3.6 KiB
Diff
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diff --git a/lib/irs/getaddrinfo.c b/lib/irs/getaddrinfo.c
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index 1b2df6d71c9a3df0e75c1f336833a136e0d6a06c..d5481c7afa605880b7c9e5ca17815d5f80e6ea5a 100644
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--- a/lib/irs/getaddrinfo.c
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+++ b/lib/irs/getaddrinfo.c
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@@ -181,6 +181,47 @@ static void _freeaddrinfo(struct addrinfo *ai);
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#define FOUND_IPV6 0x2
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#define FOUND_MAX 2
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+/*%
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+ * Try converting the scope identifier in 'src' to a network interface index.
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+ * Upon success, return true and store the resulting index in 'dst'. Upon
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+ * failure, return false.
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+ */
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+static bool
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+parse_scopeid(const char *src, uint32_t *dst) {
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+ uint32_t scopeid = 0;
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+
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+ REQUIRE(src != NULL);
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+ REQUIRE(dst != NULL);
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+
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+#ifdef HAVE_IF_NAMETOINDEX
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+ /*
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+ * Try using if_nametoindex() first if it is available. As it does not
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+ * handle numeric scopes, we do not simply return if it fails.
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+ */
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+ scopeid = (uint32_t)if_nametoindex(src);
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+#endif
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+
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+ /*
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+ * Fall back to numeric scope processing if if_nametoindex() either
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+ * fails or is unavailable.
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+ */
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+ if (scopeid == 0) {
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+ char *endptr = NULL;
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+ scopeid = (uint32_t)strtoul(src, &endptr, 10);
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+ /*
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+ * The scope identifier must not be empty and no trailing
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+ * characters are allowed after it.
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+ */
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+ if (src == endptr || endptr == NULL || *endptr != '\0') {
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+ return (false);
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+ }
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+ }
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+
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+ *dst = scopeid;
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+
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+ return (true);
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+}
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+
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#define ISC_AI_MASK (AI_PASSIVE|AI_CANONNAME|AI_NUMERICHOST)
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/*%
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* Get a list of IP addresses and port numbers for host hostname and
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@@ -365,39 +406,24 @@ getaddrinfo(const char *hostname, const char *servname,
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char abuf[sizeof(struct in6_addr)];
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char nbuf[NI_MAXHOST];
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int addrsize, addroff;
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-#ifdef IRS_HAVE_SIN6_SCOPE_ID
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- char *p, *ep;
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char ntmp[NI_MAXHOST];
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- uint32_t scopeid;
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-#endif
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+ uint32_t scopeid = 0;
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-#ifdef IRS_HAVE_SIN6_SCOPE_ID
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/*
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* Scope identifier portion.
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*/
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ntmp[0] = '\0';
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if (strchr(hostname, '%') != NULL) {
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+ char *p;
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strlcpy(ntmp, hostname, sizeof(ntmp));
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p = strchr(ntmp, '%');
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- ep = NULL;
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-
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- /*
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- * Vendors may want to support non-numeric
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- * scopeid around here.
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- */
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- if (p != NULL)
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- scopeid = (uint32_t)strtoul(p + 1,
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- &ep, 10);
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- if (p != NULL && ep != NULL && ep[0] == '\0')
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+ if (p != NULL && parse_scopeid(p + 1, &scopeid)) {
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*p = '\0';
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- else {
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+ } else {
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ntmp[0] = '\0';
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- scopeid = 0;
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}
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- } else
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- scopeid = 0;
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-#endif
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+ }
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if (inet_pton(AF_INET, hostname, (struct in_addr *)abuf)
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== 1) {
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@@ -415,7 +441,6 @@ getaddrinfo(const char *hostname, const char *servname,
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addroff = offsetof(struct sockaddr_in, sin_addr);
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family = AF_INET;
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goto common;
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-#ifdef IRS_HAVE_SIN6_SCOPE_ID
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} else if (ntmp[0] != '\0' &&
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inet_pton(AF_INET6, ntmp, abuf) == 1) {
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if (family && family != AF_INET6)
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@@ -424,7 +449,6 @@ getaddrinfo(const char *hostname, const char *servname,
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addroff = offsetof(struct sockaddr_in6, sin6_addr);
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family = AF_INET6;
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goto common;
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-#endif
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} else if (inet_pton(AF_INET6, hostname, abuf) == 1) {
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if (family != 0 && family != AF_INET6)
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return (EAI_NONAME);
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@@ -444,12 +468,10 @@ getaddrinfo(const char *hostname, const char *servname,
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ai->ai_socktype = socktype;
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SIN(ai->ai_addr)->sin_port = port;
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memmove((char *)ai->ai_addr + addroff, abuf, addrsize);
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+ if (ai->ai_family == AF_INET6) {
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+ SIN6(ai->ai_addr)->sin6_scope_id = scopeid;
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+ }
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if ((flags & AI_CANONNAME) != 0) {
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-#ifdef IRS_HAVE_SIN6_SCOPE_ID
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- if (ai->ai_family == AF_INET6)
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- SIN6(ai->ai_addr)->sin6_scope_id =
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- scopeid;
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-#endif
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if (getnameinfo(ai->ai_addr,
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(socklen_t)ai->ai_addrlen,
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nbuf, sizeof(nbuf), NULL, 0,
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