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implement AI_NUMERICSERV (as defined in RFC3493).
Obtained from: KAME MFC after: 1 week
This commit is contained in:
parent
3e7cb94c9c
commit
c224435ed9
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=140908
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@ -175,10 +175,12 @@ struct addrinfo {
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*/
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*/
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#define AI_PASSIVE 0x00000001 /* get address to use bind() */
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#define AI_PASSIVE 0x00000001 /* get address to use bind() */
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#define AI_CANONNAME 0x00000002 /* fill ai_canonname */
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#define AI_CANONNAME 0x00000002 /* fill ai_canonname */
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#define AI_NUMERICHOST 0x00000004 /* prevent name resolution */
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#define AI_NUMERICHOST 0x00000004 /* prevent host name resolution */
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/* valid flags for addrinfo */
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#define AI_NUMERICSERV 0x00000008 /* prevent service name resolution */
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/* valid flags for addrinfo (not a standard def, apps should not use it) */
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#define AI_MASK \
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#define AI_MASK \
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(AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST | AI_ADDRCONFIG)
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(AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST | AI_NUMERICSERV | \
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AI_ADDRCONFIG)
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#define AI_ALL 0x00000100 /* IPv6 and IPv4-mapped (with AI_V4MAPPED) */
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#define AI_ALL 0x00000100 /* IPv6 and IPv4-mapped (with AI_V4MAPPED) */
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#define AI_V4MAPPED_CFG 0x00000200 /* accept IPv4-mapped if kernel supports */
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#define AI_V4MAPPED_CFG 0x00000200 /* accept IPv4-mapped if kernel supports */
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@ -233,7 +233,7 @@ typedef union {
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u_char buf[MAXPACKET];
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u_char buf[MAXPACKET];
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} querybuf;
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} querybuf;
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static int str_isnumber(const char *);
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static int str2number(const char *);
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static int explore_null(const struct addrinfo *,
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static int explore_null(const struct addrinfo *,
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const char *, struct addrinfo **);
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const char *, struct addrinfo **);
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static int explore_numeric(const struct addrinfo *, const char *,
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static int explore_numeric(const struct addrinfo *, const char *,
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@ -390,20 +390,21 @@ freeaddrinfo(ai)
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}
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}
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static int
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static int
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str_isnumber(p)
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str2number(p)
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const char *p;
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const char *p;
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{
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{
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char *ep;
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char *ep;
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unsigned long v;
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if (*p == '\0')
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if (*p == '\0')
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return NO;
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return -1;
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ep = NULL;
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ep = NULL;
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errno = 0;
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errno = 0;
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(void)strtoul(p, &ep, 10);
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v = strtoul(p, &ep, 10);
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if (errno == 0 && ep && *ep == '\0')
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if (errno == 0 && ep && *ep == '\0' && v <= UINT_MAX)
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return YES;
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return v;
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else
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else
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return NO;
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return -1;
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}
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}
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int
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int
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@ -1415,7 +1416,7 @@ get_portmatch(ai, servname)
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const char *servname;
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const char *servname;
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{
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{
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/* get_port does not touch first argument. when matchonly == 1. */
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/* get_port does not touch first argument when matchonly == 1. */
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/* LINTED const cast */
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/* LINTED const cast */
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return get_port((struct addrinfo *)ai, servname, 1);
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return get_port((struct addrinfo *)ai, servname, 1);
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}
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}
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@ -1457,14 +1458,16 @@ get_port(ai, servname, matchonly)
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return EAI_SOCKTYPE;
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return EAI_SOCKTYPE;
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}
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}
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if (str_isnumber(servname)) {
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port = str2number(servname);
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if (port >= 0) {
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if (!allownumeric)
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if (!allownumeric)
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return EAI_SERVICE;
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return EAI_SERVICE;
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port = atoi(servname);
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if (port < 0 || port > 65535)
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if (port < 0 || port > 65535)
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return EAI_SERVICE;
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return EAI_SERVICE;
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port = htons(port);
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port = htons(port);
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} else {
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} else {
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if (ai->ai_flags & AI_NUMERICSERV)
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return EAI_NONAME;
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switch (ai->ai_socktype) {
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switch (ai->ai_socktype) {
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case SOCK_DGRAM:
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case SOCK_DGRAM:
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proto = "udp";
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proto = "udp";
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