Curl_debug: remove dead printhost code

The struct field is never set (since 5e0d9aea3) so remove the use of it
and remove the connectdata pointer from the prototype.

Reported-by: Tejas
Bug: https://curl.haxx.se/mail/lib-2018-06/0054.html
Closes #2647

12 files changed, 30 insertions, 74 deletions

diff --git a/lib/ftp.c b/lib/ftp.c
index 75607217f..7dbf08004 100644
--- a/lib/ftp.c
+++ b/lib/ftp.c
@@ -3991,8 +3991,7 @@ CURLcode Curl_ftpsend(struct connectdata *conn, const char *cmd)
       break;
 
     if(conn->data->set.verbose)
-      Curl_debug(conn->data, CURLINFO_HEADER_OUT,
-                 sptr, (size_t)bytes_written, conn);
+      Curl_debug(conn->data, CURLINFO_HEADER_OUT, sptr, (size_t)bytes_written);
 
     if(bytes_written != (ssize_t)write_len) {
       write_len -= bytes_written;
diff --git a/lib/http.c b/lib/http.c
index 66757a3f5..4ec5f2be6 100644
--- a/lib/http.c
+++ b/lib/http.c
@@ -1181,12 +1181,12 @@ CURLcode Curl_add_buffer_send(Curl_send_buffer *in,
 
     if(conn->data->set.verbose) {
       /* this data _may_ contain binary stuff */
-      Curl_debug(conn->data, CURLINFO_HEADER_OUT, ptr, headlen, conn);
+      Curl_debug(conn->data, CURLINFO_HEADER_OUT, ptr, headlen);
       if(bodylen) {
         /* there was body data sent beyond the initial header part, pass that
            on to the debug callback too */
         Curl_debug(conn->data, CURLINFO_DATA_OUT,
-                   ptr + headlen, bodylen, conn);
+                   ptr + headlen, bodylen);
       }
     }
 
@@ -3405,7 +3405,7 @@ CURLcode Curl_http_readwrite_headers(struct Curl_easy *data,
 
         if(data->set.verbose)
           Curl_debug(data, CURLINFO_HEADER_IN,
-                     k->str_start, headerlen, conn);
+                     k->str_start, headerlen);
         break;          /* exit header line loop */
       }
 
@@ -3860,8 +3860,7 @@ CURLcode Curl_http_readwrite_headers(struct Curl_easy *data,
       writetype |= CLIENTWRITE_BODY;
 
     if(data->set.verbose)
-      Curl_debug(data, CURLINFO_HEADER_IN,
-                 k->p, (size_t)k->hbuflen, conn);
+      Curl_debug(data, CURLINFO_HEADER_IN, k->p, (size_t)k->hbuflen);
 
     result = Curl_client_write(conn, writetype, k->p, k->hbuflen);
     if(result)
diff --git a/lib/http_proxy.c b/lib/http_proxy.c
index 0441ba6d8..ecc822704 100644
--- a/lib/http_proxy.c
+++ b/lib/http_proxy.c
@@ -419,7 +419,7 @@ static CURLcode CONNECT(struct connectdata *conn,
         /* output debug if that is requested */
         if(data->set.verbose)
           Curl_debug(data, CURLINFO_HEADER_IN,
-                     s->line_start, (size_t)s->perline, conn);
+                     s->line_start, (size_t)s->perline);
 
         if(!data->set.suppress_connect_headers) {
           /* send the header to the callback */
diff --git a/lib/pingpong.c b/lib/pingpong.c
index 3c9ca0df2..2e93d201f 100644
--- a/lib/pingpong.c
+++ b/lib/pingpong.c
@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2018, 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
@@ -221,8 +221,7 @@ CURLcode Curl_pp_vsendf(struct pingpong *pp,
   }
 
   if(conn->data->set.verbose)
-    Curl_debug(conn->data, CURLINFO_HEADER_OUT,
-               s, (size_t)bytes_written, conn);
+    Curl_debug(conn->data, CURLINFO_HEADER_OUT, s, (size_t)bytes_written);
 
   if(bytes_written != (ssize_t)write_len) {
     /* the whole chunk was not sent, keep it around and adjust sizes */
@@ -370,7 +369,7 @@ CURLcode Curl_pp_readresp(curl_socket_t sockfd,
 #endif
             if(data->set.verbose)
               Curl_debug(data, CURLINFO_HEADER_IN,
-                         pp->linestart_resp, (size_t)perline, conn);
+                         pp->linestart_resp, (size_t)perline);
 
           /*
            * We pass all response-lines to the callback function registered
diff --git a/lib/security.c b/lib/security.c
index 4039f4e41..abf242c38 100644
--- a/lib/security.c
+++ b/lib/security.c
@@ -390,7 +390,7 @@ int Curl_sec_read_msg(struct connectdata *conn, char *buffer,
 
   if(conn->data->set.verbose) {
     buf[decoded_len] = '\n';
-    Curl_debug(conn->data, CURLINFO_HEADER_IN, buf, decoded_len + 1, conn);
+    Curl_debug(conn->data, CURLINFO_HEADER_IN, buf, decoded_len + 1);
   }
 
   buf[decoded_len] = '\0';
diff --git a/lib/sendf.c b/lib/sendf.c
index a0d9a1d4d..d3c10b369 100644
--- a/lib/sendf.c
+++ b/lib/sendf.c
@@ -240,7 +240,7 @@ void Curl_infof(struct Curl_easy *data, const char *fmt, ...)
     vsnprintf(print_buffer, sizeof(print_buffer), fmt, ap);
     va_end(ap);
     len = strlen(print_buffer);
-    Curl_debug(data, CURLINFO_TEXT, print_buffer, len, NULL);
+    Curl_debug(data, CURLINFO_TEXT, print_buffer, len);
   }
 }
 
@@ -265,7 +265,7 @@ void Curl_failf(struct Curl_easy *data, const char *fmt, ...)
     if(data->set.verbose) {
       error[len] = '\n';
       error[++len] = '\0';
-      Curl_debug(data, CURLINFO_TEXT, error, len, NULL);
+      Curl_debug(data, CURLINFO_TEXT, error, len);
     }
     va_end(ap);
   }
@@ -300,7 +300,7 @@ CURLcode Curl_sendf(curl_socket_t sockfd, struct connectdata *conn,
       break;
 
     if(data->set.verbose)
-      Curl_debug(data, CURLINFO_DATA_OUT, sptr, (size_t)bytes_written, conn);
+      Curl_debug(data, CURLINFO_DATA_OUT, sptr, (size_t)bytes_written);
 
     if((size_t)bytes_written != write_len) {
       /* if not all was written at once, we must advance the pointer, decrease
@@ -762,8 +762,8 @@ CURLcode Curl_read(struct connectdata *conn, /* connection data */
 }
 
 /* return 0 on success */
-static int showit(struct Curl_easy *data, curl_infotype type,
-                  char *ptr, size_t size)
+int Curl_debug(struct Curl_easy *data, curl_infotype type,
+               char *ptr, size_t size)
 {
   static const char s_infotype[CURLINFO_END][3] = {
     "* ", "< ", "> ", "{ ", "} ", "{ ", "} " };
@@ -834,41 +834,3 @@ static int showit(struct Curl_easy *data, curl_infotype type,
 #endif
   return rc;
 }
-
-int Curl_debug(struct Curl_easy *data, curl_infotype type,
-               char *ptr, size_t size,
-               struct connectdata *conn)
-{
-  int rc;
-  if(data->set.printhost && conn && conn->host.dispname) {
-    const char *t = NULL;
-    const char *w = "Data";
-    switch(type) {
-    case CURLINFO_HEADER_IN:
-      w = "Header";
-      /* FALLTHROUGH */
-    case CURLINFO_DATA_IN:
-      t = "from";
-      break;
-    case CURLINFO_HEADER_OUT:
-      w = "Header";
-      /* FALLTHROUGH */
-    case CURLINFO_DATA_OUT:
-      t = "to";
-      break;
-    default:
-      break;
-    }
-
-    if(t) {
-      char buffer[160];
-      snprintf(buffer, sizeof(buffer), "[%s %s %s]", w, t,
-               conn->host.dispname);
-      rc = showit(data, CURLINFO_TEXT, buffer, strlen(buffer));
-      if(rc)
-        return rc;
-    }
-  }
-  rc = showit(data, type, ptr, size);
-  return rc;
-}
diff --git a/lib/sendf.h b/lib/sendf.h
index eb7bdd57e..7627fe6c5 100644
--- a/lib/sendf.h
+++ b/lib/sendf.h
@@ -85,8 +85,7 @@ CURLcode Curl_write_plain(struct connectdata *conn,
 
 /* the function used to output verbose information */
 int Curl_debug(struct Curl_easy *data, curl_infotype type,
-               char *ptr, size_t size,
-               struct connectdata *conn);
+               char *ptr, size_t size);
 
 
 #endif /* HEADER_CURL_SENDF_H */
diff --git a/lib/ssh-libssh.c b/lib/ssh-libssh.c
index 34ef490c4..69c87ac67 100644
--- a/lib/ssh-libssh.c
+++ b/lib/ssh-libssh.c
@@ -1306,7 +1306,7 @@ static CURLcode myssh_statemach_act(struct connectdata *conn, bool *block)
           if(data->set.verbose) {
             Curl_debug(data, CURLINFO_DATA_OUT,
                        (char *)sshc->readdir_filename,
-                       sshc->readdir_len, conn);
+                       sshc->readdir_len);
           }
         }
         else {
@@ -1423,7 +1423,7 @@ static CURLcode myssh_statemach_act(struct connectdata *conn, bool *block)
         /* output debug output if that is requested */
         if(data->set.verbose) {
           Curl_debug(data, CURLINFO_DATA_OUT, sshc->readdir_line,
-                     sshc->readdir_currLen, conn);
+                     sshc->readdir_currLen);
         }
         data->req.bytecount += sshc->readdir_currLen;
       }
@@ -2500,8 +2500,8 @@ static void sftp_quote(struct connectdata *conn)
       return;
     }
     if(data->set.verbose) {
-      Curl_debug(data, CURLINFO_HEADER_OUT, (char *) "PWD\n", 4, conn);
-      Curl_debug(data, CURLINFO_HEADER_IN, tmp, strlen(tmp), conn);
+      Curl_debug(data, CURLINFO_HEADER_OUT, (char *) "PWD\n", 4);
+      Curl_debug(data, CURLINFO_HEADER_IN, tmp, strlen(tmp));
     }
     /* this sends an FTP-like "header" to the header callback so that the
        current directory can be read very similar to how it is read when
diff --git a/lib/ssh.c b/lib/ssh.c
index bf7bd54f9..98153040b 100644
--- a/lib/ssh.c
+++ b/lib/ssh.c
@@ -1175,8 +1175,8 @@ static CURLcode ssh_statemach_act(struct connectdata *conn, bool *block)
           break;
         }
         if(data->set.verbose) {
-          Curl_debug(data, CURLINFO_HEADER_OUT, (char *)"PWD\n", 4, conn);
-          Curl_debug(data, CURLINFO_HEADER_IN, tmp, strlen(tmp), conn);
+          Curl_debug(data, CURLINFO_HEADER_OUT, (char *)"PWD\n", 4);
+          Curl_debug(data, CURLINFO_HEADER_IN, tmp, strlen(tmp));
         }
         /* this sends an FTP-like "header" to the header callback so that the
            current directory can be read very similar to how it is read when
@@ -1970,7 +1970,7 @@ static CURLcode ssh_statemach_act(struct connectdata *conn, bool *block)
           /* output debug output if that is requested */
           if(data->set.verbose) {
             Curl_debug(data, CURLINFO_DATA_OUT, sshc->readdir_filename,
-                       sshc->readdir_len, conn);
+                       sshc->readdir_len);
           }
         }
         else {
@@ -2079,7 +2079,7 @@ static CURLcode ssh_statemach_act(struct connectdata *conn, bool *block)
         /* output debug output if that is requested */
         if(data->set.verbose) {
           Curl_debug(data, CURLINFO_DATA_OUT, sshc->readdir_line,
-                     sshc->readdir_currLen, conn);
+                     sshc->readdir_currLen);
         }
         data->req.bytecount += sshc->readdir_currLen;
       }
diff --git a/lib/transfer.c b/lib/transfer.c
index 6f03cb5cc..435d3e1ec 100644
--- a/lib/transfer.c
+++ b/lib/transfer.c
@@ -660,14 +660,14 @@ static CURLcode readwrite_data(struct Curl_easy *data,
       if(data->set.verbose) {
         if(k->badheader) {
           Curl_debug(data, CURLINFO_DATA_IN, data->state.headerbuff,
-                     (size_t)k->hbuflen, conn);
+                     (size_t)k->hbuflen);
           if(k->badheader == HEADER_PARTHEADER)
             Curl_debug(data, CURLINFO_DATA_IN,
-                       k->str, (size_t)nread, conn);
+                       k->str, (size_t)nread);
         }
         else
           Curl_debug(data, CURLINFO_DATA_IN,
-                     k->str, (size_t)nread, conn);
+                     k->str, (size_t)nread);
       }
 
 #ifndef CURL_DISABLE_HTTP
@@ -1027,7 +1027,7 @@ static CURLcode readwrite_upload(struct Curl_easy *data,
     if(data->set.verbose)
       /* show the data before we change the pointer upload_fromhere */
       Curl_debug(data, CURLINFO_DATA_OUT, k->upload_fromhere,
-                 (size_t)bytes_written, conn);
+                 (size_t)bytes_written);
 
     k->writebytecount += bytes_written;
 
diff --git a/lib/urldata.h b/lib/urldata.h
index 51970b7ac..666981c38 100644
--- a/lib/urldata.h
+++ b/lib/urldata.h
@@ -1585,8 +1585,6 @@ struct UserDefined {
 /* Here follows boolean settings that define how to behave during
    this session. They are STATIC, set by libcurl users or at least initially
    and they don't change during operations. */
-
-  bool printhost;        /* printing host name in debug info */
   bool get_filetime;     /* get the time and get of the remote file */
   bool tunnel_thru_httpproxy; /* use CONNECT through a HTTP proxy */
   bool prefer_ascii;     /* ASCII rather than binary */
diff --git a/lib/vtls/openssl.c b/lib/vtls/openssl.c
index 4b2e54bf0..4731107f2 100644
--- a/lib/vtls/openssl.c
+++ b/lib/vtls/openssl.c
@@ -1945,12 +1945,12 @@ static void ssl_tls_trace(int direction, int ssl_ver, int content_type,
                        verstr, direction?"OUT":"IN",
                        tls_rt_name, msg_name, msg_type);
     if(0 <= txt_len && (unsigned)txt_len < sizeof(ssl_buf)) {
-      Curl_debug(data, CURLINFO_TEXT, ssl_buf, (size_t)txt_len, NULL);
+      Curl_debug(data, CURLINFO_TEXT, ssl_buf, (size_t)txt_len);
     }
   }
 
   Curl_debug(data, (direction == 1) ? CURLINFO_SSL_DATA_OUT :
-             CURLINFO_SSL_DATA_IN, (char *)buf, len, NULL);
+             CURLINFO_SSL_DATA_IN, (char *)buf, len);
   (void) ssl;
 }
 #endif