5 files changed, 118 insertions, 10 deletions
diff --git a/docs/libcurl/libcurl-errors.3 b/docs/libcurl/libcurl-errors.3
index 4a0934ab9..1f985da8e 100644
--- a/docs/libcurl/libcurl-errors.3
+++ b/docs/libcurl/libcurl-errors.3
@@ -59,9 +59,9 @@ Couldn't resolve proxy. The given proxy host could not be resolved.
 Couldn't resolve host. The given remote host was not resolved.
 .IP "CURLE_COULDNT_CONNECT (7)"
 Failed to connect() to host or proxy.
-.IP "CURLE_FTP_WEIRD_SERVER_REPLY (8)"
-The server sent data libcurl couldn't parse. This error code is used for more
-than just FTP and is aliased as \fICURLE_WEIRD_SERVER_REPLY\fP since 7.51.0.
+.IP "CURLE_WEIRD_SERVER_REPLY (8)"
+The server sent data libcurl couldn't parse. This error code was known as as
+\fICURLE_FTP_WEIRD_SERVER_REPLY\fP before 7.51.0.
 .IP "CURLE_REMOTE_ACCESS_DENIED (9)"
 We were denied access to the resource given in the URL.  For FTP, this occurs
 while trying to change to the remote directory.
@@ -271,6 +271,9 @@ This is not really an error. It means you should call
 between. Before version 7.20.0 this could be returned by
 \fIcurl_multi_perform(3)\fP, but in later versions this return code is never
 used.
+.IP "CURLM_CALL_MULTI_SOCKET (-1)"
+An alias for CURLM_CALL_MULTI_PERFORM. Never returned by modern libcurl
+versions.
 .IP "CURLM_OK (0)"
 Things are fine.
 .IP "CURLM_BAD_HANDLE (1)"
diff --git a/docs/libcurl/symbols-in-versions b/docs/libcurl/symbols-in-versions
index c7dadea19..f3131d2a2 100644
--- a/docs/libcurl/symbols-in-versions
+++ b/docs/libcurl/symbols-in-versions
@@ -38,7 +38,7 @@ CURLCLOSEPOLICY_OLDEST          7.7
 CURLCLOSEPOLICY_SLOWEST         7.7
 CURLE_ABORTED_BY_CALLBACK       7.1
 CURLE_AGAIN                     7.18.2
-CURLE_ALREADY_COMPLETE          7.7.2
+CURLE_ALREADY_COMPLETE          7.7.2         7.8
 CURLE_AUTH_ERROR                7.66.0
 CURLE_BAD_CALLING_ORDER         7.1           7.17.0
 CURLE_BAD_CONTENT_ENCODING      7.10
@@ -56,7 +56,7 @@ CURLE_FILESIZE_EXCEEDED         7.10.8
 CURLE_FILE_COULDNT_READ_FILE    7.1
 CURLE_FTP_ACCEPT_FAILED         7.24.0
 CURLE_FTP_ACCEPT_TIMEOUT        7.24.0
-CURLE_FTP_ACCESS_DENIED         7.1
+CURLE_FTP_ACCESS_DENIED         7.1           7.17.0
 CURLE_FTP_BAD_DOWNLOAD_RESUME   7.1           7.1
 CURLE_FTP_BAD_FILE_LIST         7.21.0
 CURLE_FTP_CANT_GET_HOST         7.1
@@ -66,7 +66,7 @@ CURLE_FTP_COULDNT_RETR_FILE     7.1
 CURLE_FTP_COULDNT_SET_ASCII     7.1           7.17.0
 CURLE_FTP_COULDNT_SET_BINARY    7.1           7.17.0
 CURLE_FTP_COULDNT_SET_TYPE      7.17.0
-CURLE_FTP_COULDNT_STOR_FILE     7.1
+CURLE_FTP_COULDNT_STOR_FILE     7.1           7.16.3
 CURLE_FTP_COULDNT_USE_REST      7.1
 CURLE_FTP_PARTIAL_FILE          7.1           7.1
 CURLE_FTP_PORT_FAILED           7.1
@@ -77,7 +77,7 @@ CURLE_FTP_USER_PASSWORD_INCORRECT 7.1         7.17.0
 CURLE_FTP_WEIRD_227_FORMAT      7.1
 CURLE_FTP_WEIRD_PASS_REPLY      7.1
 CURLE_FTP_WEIRD_PASV_REPLY      7.1
-CURLE_FTP_WEIRD_SERVER_REPLY    7.1
+CURLE_FTP_WEIRD_SERVER_REPLY    7.1           7.51.0
 CURLE_FTP_WEIRD_USER_REPLY      7.1           7.17.0
 CURLE_FTP_WRITE_ERROR           7.1           7.17.0
 CURLE_FUNCTION_NOT_FOUND        7.1
@@ -85,7 +85,7 @@ CURLE_GOT_NOTHING               7.9.1
 CURLE_HTTP2                     7.38.0
 CURLE_HTTP2_STREAM              7.49.0
 CURLE_HTTP3                     7.68.0
-CURLE_HTTP_NOT_FOUND            7.1
+CURLE_HTTP_NOT_FOUND            7.1           7.10.3
 CURLE_HTTP_PORT_FAILED          7.3           7.12.0
 CURLE_HTTP_POST_ERROR           7.1
 CURLE_HTTP_RANGE_ERROR          7.1           7.17.0
@@ -144,7 +144,7 @@ CURLE_TFTP_PERM                 7.15.0
 CURLE_TFTP_UNKNOWNID            7.15.0
 CURLE_TOO_MANY_REDIRECTS        7.5
 CURLE_UNKNOWN_OPTION            7.21.5
-CURLE_UNKNOWN_TELNET_OPTION     7.7
+CURLE_UNKNOWN_TELNET_OPTION     7.7           7.21.5
 CURLE_UNSUPPORTED_PROTOCOL      7.1
 CURLE_UPLOAD_FAILED             7.16.3
 CURLE_URL_MALFORMAT             7.1
diff --git a/tests/data/Makefile.inc b/tests/data/Makefile.inc
index 212900ee5..23215655b 100644
--- a/tests/data/Makefile.inc
+++ b/tests/data/Makefile.inc
@@ -133,7 +133,7 @@ test1136 test1137 test1138 test1139 test1140 test1141 test1142 test1143 \
 test1144 test1145 test1146 test1147 test1148 test1149 test1150 test1151 \
 test1152 test1153 test1154 test1155 test1156 test1157 test1158 test1159 \
 test1160 test1161 test1162 test1163 test1164 test1165 test1166 \
-test1170 test1171 test1172 test1173 test1174 \
+test1170 test1171 test1172 test1173 test1174 test1175 \
 \
 test1200 test1201 test1202 test1203 test1204 test1205 test1206 test1207 \
 test1208 test1209 test1210 test1211 test1212 test1213 test1214 test1215 \
diff --git a/tests/data/test1175 b/tests/data/test1175
new file mode 100644
index 000000000..61f068915
--- /dev/null
+++ b/tests/data/test1175
@@ -0,0 +1,25 @@
+<testcase>
+<info>
+<keywords>
+source analysis
+symbols-in-versions
+</keywords>
+</info>
+
+#
+# Client-side
+<client>
+<server>
+none
+</server>
+
+ <name>
+Verify that symbols-in-versions and libcurl-errors.3 are in sync
+ </name>
+
+<command type="perl">
+%SRCDIR/error-codes.pl %SRCDIR
+</command>
+</client>
+
+</testcase>
diff --git a/tests/error-codes.pl b/tests/error-codes.pl
new file mode 100644
index 000000000..0d555f667
--- /dev/null
+++ b/tests/error-codes.pl
@@ -0,0 +1,80 @@
+#!/usr/bin/env perl
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 2010-2019, 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
+# are also available at https://curl.haxx.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+###########################################################################
+#
+#
+
+use strict;
+use warnings;
+
+# we may get the dir root pointed out
+my $root=$ARGV[0] || ".";
+
+my %error; # from the include file
+my %docs; # from libcurl-errors.3
+
+sub getdocserrors {
+    open(F, "<$root/docs/libcurl/libcurl-errors.3");
+    while(<F>) {
+        if($_ =~ /^.IP \"(CURL[EM]_[^ \t\"]*)/) {
+            my ($symbol) = ($1);
+            if($symbol =~ /OBSOLETE/) {
+                ;
+            }
+            else {
+                $docs{$symbol}=1;
+            }
+        }
+    }
+    close(F);
+}
+
+sub getincludeerrors {
+    open(F, "<$root/docs/libcurl/symbols-in-versions");
+    while(<F>) {
+        if($_ =~ /^(CURL[EM]_[^ \t]*)[ \t]*([0-9.]+)[ \t]*(.*)/) {
+            my ($symbol, $added, $rest) = ($1,$2,$3);
+            if($rest =~ /^([0-9.]+)/) {
+                # removed!
+            }
+            else {
+                $error{$symbol}=$added;
+            }
+        }
+    }
+    close(F);
+}
+
+getincludeerrors();
+getdocserrors();
+
+for(sort keys %error) {
+    if($error{$_} && !$docs{$_}) {
+        print "$_ is not in libcurl-errors.3\n";
+    }
+}
+
+for(sort keys %docs) {
+    if($docs{$_} && !$error{$_}) {
+        print "$_ is not in symbols-in-versions\n";
+    }
+}