Commit 245e3122 authored by Daniel Stenberg's avatar Daniel Stenberg
Browse files

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

make the code easier to read
parent ffc5fa3a
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+2 −2
Original line number Diff line number Diff line
@@ -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)
+4 −4
Original line number Diff line number Diff line
@@ -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) {
+13 −12
Original line number Diff line number Diff line
@@ -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;
+10 −4
Original line number Diff line number Diff line
@@ -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
+4 −4
Original line number Diff line number Diff line
@@ -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) {