setopt: add CURLOPT_PROTOCOLS_STR and CURLOPT_REDIR_PROTOCOLS_STR

... as replacements for deprecated CURLOPT_PROTOCOLS and
CURLOPT_REDIR_PROTOCOLS as these new ones do not risk running into the
32 bit limit the old ones are facing.

CURLINFO_PROTCOOL is now deprecated.

The curl tool is updated to use the new options.

Added test 1597 to verify the libcurl protocol parser.

Closes #8992

tests/data/Makefile.inc

@@ -201,7 +201,7 @@ test1550 test1551 test1552 test1553 test1554 test1555 test1556 test1557 \
 test1558 test1559 test1560 test1561 test1562 test1563 test1564 test1565 \
 test1566 test1567 test1568 test1569 test1570 \
 \
-test1590 test1591 test1592 test1593 test1594 test1595 test1596 \
+test1590 test1591 test1592 test1593 test1594 test1595 test1596 test1597 \
 \
 test1600 test1601 test1602 test1603 test1604 test1605 test1606 test1607 \
 test1608 test1609 test1610 test1611 test1612 test1613 \

tests/data/test1401

@@ -91,9 +91,7 @@ int main(int argc, char *argv[])
   curl_easy_setopt(hnd, CURLOPT_FTP_SKIP_PASV_IP, 1L);
 %endif
   curl_easy_setopt(hnd, CURLOPT_TCP_KEEPALIVE, 1L);
-  curl_easy_setopt(hnd, CURLOPT_PROTOCOLS, (long)CURLPROTO_FILE |
-                                           (long)CURLPROTO_FTP |
-                                           (long)CURLPROTO_HTTP);
+  curl_easy_setopt(hnd, CURLOPT_PROTOCOLS_STR, "http,ftp,file");
 
   /* Here is a list of options the curl code used that cannot get generated
      as source easily. You may choose to either not use them or implement

tests/data/test1597

@@ -0,0 +1,32 @@
+<testcase>
+<info>
+<keywords>
+CURLOPT_PROTOCOLS_STR
+</keywords>
+</info>
+
+# Server-side
+<reply>
+</reply>
+# Client-side
+<client>
+<server>
+none
+</server>
+<name>
+CURLOPT_PROTOCOLS_STR
+</name>
+<tool>
+lib%TESTNUMBER
+</tool>
+<command>
+-
+</command>
+</client>
+
+<verify>
+<stdout>
+Tested 15 strings
+</stdout>
+</verify>
+</testcase>