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Made defines instead of plain numbers for the Curl_resolv() return code to

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make the code easier to read
This commit is contained in:
Daniel Stenberg 2004-04-26 14:18:00 +00:00
parent ffc5fa3a2b
commit 245e3122df
5 changed files with 33 additions and 26 deletions
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4
lib/connect.c
View File

@ -263,7 +263,7 @@ static CURLcode bindlocal(struct connectdata *conn,
* We now have the numerical IPv4-style x.y.z.w in the 'myhost' buffer
*/
rc = Curl_resolv(conn, myhost, 0, &h);
if(rc == 1)
if(rc == CURLRESOLV_PENDING)
(void)Curl_wait_for_resolv(conn, &h);
if(h)
@ -276,7 +276,7 @@ static CURLcode bindlocal(struct connectdata *conn,
* or IP number
*/
rc = Curl_resolv(conn, data->set.device, 0, &h);
if(rc == 1)
if(rc == CURLRESOLV_PENDING)
(void)Curl_wait_for_resolv(conn, &h);
if(h)

8
lib/ftp.c
View File

@ -1367,14 +1367,14 @@ CURLcode ftp_use_port(struct connectdata *conn)
if((in == CURL_INADDR_NONE) &&
Curl_if2ip(data->set.ftpport, myhost, sizeof(myhost))) {
rc = Curl_resolv(conn, myhost, 0, &h);
if(rc == 1)
if(rc == CURLRESOLV_PENDING)
rc = Curl_wait_for_resolv(conn, &h);
}
else {
size_t len = strlen(data->set.ftpport);
if(len>1) {
rc = Curl_resolv(conn, data->set.ftpport, 0, &h);
if(rc == 1)
if(rc == CURLRESOLV_PENDING)
rc = Curl_wait_for_resolv(conn, &h);
}
if(h)
@ -1642,7 +1642,7 @@ CURLcode ftp_use_pasv(struct connectdata *conn,
* now, instead we remake the lookup here and now!
*/
rc = Curl_resolv(conn, conn->proxyhost, conn->port, &addr);
if(rc == 1)
if(rc == CURLRESOLV_PENDING)
rc = Curl_wait_for_resolv(conn, &addr);
connectport =
@ -1652,7 +1652,7 @@ CURLcode ftp_use_pasv(struct connectdata *conn,
else {
/* normal, direct, ftp connection */
rc = Curl_resolv(conn, newhostp, newport, &addr);
if(rc == 1)
if(rc == CURLRESOLV_PENDING)
rc = Curl_wait_for_resolv(conn, &addr);
if(!addr) {

25
lib/hostip.c
View File

@ -366,10 +366,11 @@ Curl_cache_addr(struct SessionHandle *data,
*
* Return codes:
*
* -1 = error, no pointer
* 0 = OK, pointer provided
* 1 = waiting for response, no pointer
* CURLRESOLV_ERROR (-1) = error, no pointer
* CURLRESOLV_RESOLVED (0) = OK, pointer provided
* CURLRESOLV_PENDING (1) = waiting for response, no pointer
*/
int Curl_resolv(struct connectdata *conn,
char *hostname,
int port,
@ -383,7 +384,7 @@ int Curl_resolv(struct connectdata *conn,
CURLcode result;
/* default to failure */
int rc = -1;
int rc = CURLRESOLV_ERROR;
*entry = NULL;
#ifdef HAVE_SIGSETJMP
@ -392,7 +393,7 @@ int Curl_resolv(struct connectdata *conn,
if(!data->set.no_signal && sigsetjmp(curl_jmpenv, 1)) {
/* this is coming from a siglongjmp() */
failf(data, "name lookup timed out");
return -1;
return CURLRESOLV_ERROR;
}
#endif
@ -400,7 +401,7 @@ int Curl_resolv(struct connectdata *conn,
entry_id = create_hostcache_id(hostname, port, &entry_len);
/* If we can't create the entry id, fail */
if (!entry_id)
return -1;
return CURLRESOLV_ERROR;
if(data->share)
Curl_share_lock(data, CURL_LOCK_DATA_DNS, CURL_LOCK_ACCESS_SINGLE);
@ -422,7 +423,7 @@ int Curl_resolv(struct connectdata *conn,
/* Check what IP specifics the app has requested and if we can provide it.
* If not, bail out. */
if(!Curl_ipvalid(data))
return -1;
return CURLRESOLV_ERROR;
/* If Curl_getaddrinfo() returns NULL, 'wait' might be set to a non-zero
value indicating that we need to wait for the response to the resolve
@ -436,11 +437,11 @@ int Curl_resolv(struct connectdata *conn,
/* First, check that we haven't received the info by now */
result = Curl_is_resolved(conn, &dns);
if(result) /* error detected */
return -1;
return CURLRESOLV_ERROR;
if(dns)
rc = 0; /* pointer provided */
rc = CURLRESOLV_RESOLVED; /* pointer provided */
else
rc = 1; /* no info yet */
rc = CURLRESOLV_PENDING; /* no info yet */
}
}
else {
@ -457,12 +458,12 @@ int Curl_resolv(struct connectdata *conn,
/* returned failure, bail out nicely */
Curl_freeaddrinfo(addr);
else
rc = 0;
rc = CURLRESOLV_RESOLVED;
}
}
else {
dns->inuse++; /* we use it! */
rc = 0;
rc = CURLRESOLV_RESOLVED;
}
*entry = dns;

14
lib/hostip.h
View File

@ -51,10 +51,12 @@ struct Curl_dns_entry {
* The returned data *MUST* be "unlocked" with Curl_resolv_unlock() after
* use, or we'll leak memory!
*/
int Curl_resolv(struct connectdata *conn,
char *hostname,
int port,
struct Curl_dns_entry **dnsentry);
/* return codes */
#define CURLRESOLV_ERROR -1
#define CURLRESOLV_RESOLVED 0
#define CURLRESOLV_PENDING 1
int Curl_resolv(struct connectdata *conn, char *hostname,
int port, struct Curl_dns_entry **dnsentry);
/*
* Curl_ipvalid() checks what CURL_IPRESOLVE_* requirements that might've
@ -201,6 +203,10 @@ Curl_cache_addr(struct SessionHandle *data, Curl_addrinfo *addr,
#define CURLRES_SYNCH
#endif
#ifndef USE_LIBIDN
#define CURLRES_IDN
#endif
/* Allocate enough memory to hold the full name information structs and
* everything. OSF1 is known to require at least 8872 bytes. The buffer
* required for storing all possible aliases and IP numbers is according to

8
lib/url.c
View File

@ -1765,10 +1765,10 @@ static int handleSock5Proxy(const char *proxy_name,
Curl_addrinfo *hp=NULL;
int rc = Curl_resolv(conn, TRUE_HOSTNAME(conn), conn->remote_port, &dns);
if(rc == -1)
if(rc == CURLRESOLV_ERROR)
return 1;
if(rc == 1)
if(rc == CURLRESOLV_PENDING)
/* this requires that we're in "wait for resolve" state */
rc = Curl_wait_for_resolv(conn, &dns);
@ -3062,7 +3062,7 @@ static CURLcode CreateConnection(struct SessionHandle *data,
/* Resolve target host right on */
rc = Curl_resolv(conn, TRUE_HOSTNAME(conn), conn->port, &hostaddr);
if(rc == 1)
if(rc == CURLRESOLV_PENDING)
*async = TRUE;
else if(!hostaddr) {
@ -3077,7 +3077,7 @@ static CURLcode CreateConnection(struct SessionHandle *data,
/* resolve proxy */
rc = Curl_resolv(conn, conn->proxyhost, conn->port, &hostaddr);
if(rc == 1)
if(rc == CURLRESOLV_PENDING)
*async = TRUE;
else if(!hostaddr) {