diff options
Diffstat (limited to 'lib/hostip6.c')
| -rw-r--r-- | lib/hostip6.c | 48 |
1 files changed, 25 insertions, 23 deletions
diff --git a/lib/hostip6.c b/lib/hostip6.c index e0e0c58df..11215758d 100644 --- a/lib/hostip6.c +++ b/lib/hostip6.c @@ -5,7 +5,7 @@ * | (__| |_| | _ <| |___ * \___|\___/|_| \_\_____| * - * Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al. + * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al. * * This software is licensed as described in the file COPYING, which * you should have received as part of this distribution. The terms @@ -62,13 +62,19 @@ /* * Curl_ipv6works() returns TRUE if IPv6 seems to work. */ -bool Curl_ipv6works(void) +bool Curl_ipv6works(struct connectdata *conn) { - /* the nature of most system is that IPv6 status doesn't come and go - during a program's lifetime so we only probe the first time and then we - have the info kept for fast re-use */ - static int ipv6_works = -1; - if(-1 == ipv6_works) { + if(conn) { + /* the nature of most system is that IPv6 status doesn't come and go + during a program's lifetime so we only probe the first time and then we + have the info kept for fast re-use */ + DEBUGASSERT(conn); + DEBUGASSERT(conn->data); + DEBUGASSERT(conn->data->multi); + return conn->data->multi->ipv6_works; + } + else { + int ipv6_works = -1; /* probe to see if we have a working IPv6 stack */ curl_socket_t s = socket(PF_INET6, SOCK_DGRAM, 0); if(s == CURL_SOCKET_BAD) @@ -78,8 +84,8 @@ bool Curl_ipv6works(void) ipv6_works = 1; Curl_closesocket(NULL, s); } + return (ipv6_works>0)?TRUE:FALSE; } - return (ipv6_works>0)?TRUE:FALSE; } /* @@ -89,7 +95,7 @@ bool Curl_ipv6works(void) bool Curl_ipvalid(struct connectdata *conn) { if(conn->ip_version == CURL_IPRESOLVE_V6) - return Curl_ipv6works(); + return Curl_ipv6works(conn); return TRUE; } @@ -97,20 +103,16 @@ bool Curl_ipvalid(struct connectdata *conn) #if defined(CURLRES_SYNCH) #ifdef DEBUG_ADDRINFO -static void dump_addrinfo(struct connectdata *conn, const Curl_addrinfo *ai) +static void dump_addrinfo(struct connectdata *conn, + const struct Curl_addrinfo *ai) { printf("dump_addrinfo:\n"); for(; ai; ai = ai->ai_next) { char buf[INET6_ADDRSTRLEN]; printf(" fam %2d, CNAME %s, ", ai->ai_family, ai->ai_canonname ? ai->ai_canonname : "<none>"); - if(Curl_printable_address(ai, buf, sizeof(buf))) - printf("%s\n", buf); - else { - char buffer[STRERROR_LEN]; - printf("failed; %s\n", - Curl_strerror(SOCKERRNO, buffer, sizeof(buffer))); - } + Curl_printable_address(ai, buf, sizeof(buf)); + printf("%s\n", buf); } } #else @@ -126,13 +128,13 @@ static void dump_addrinfo(struct connectdata *conn, const Curl_addrinfo *ai) * memory we need to free after use. That memory *MUST* be freed with * Curl_freeaddrinfo(), nothing else. */ -Curl_addrinfo *Curl_getaddrinfo(struct connectdata *conn, - const char *hostname, - int port, - int *waitp) +struct Curl_addrinfo *Curl_getaddrinfo(struct connectdata *conn, + const char *hostname, + int port, + int *waitp) { struct addrinfo hints; - Curl_addrinfo *res; + struct Curl_addrinfo *res; int error; char sbuf[12]; char *sbufptr = NULL; @@ -159,7 +161,7 @@ Curl_addrinfo *Curl_getaddrinfo(struct connectdata *conn, break; } - if((pf != PF_INET) && !Curl_ipv6works()) + if((pf != PF_INET) && !Curl_ipv6works(conn)) /* The stack seems to be a non-IPv6 one */ pf = PF_INET; |