lib: rename internal header share.h to curl_share.h to avoid collision

Windows CRTs have a `share.h`. Before this patch when trying to
`#include <share.h>` it, the compiler picked up curl's internal
`lib/share.h` instead. Rename it to avoid this issue.

CRT `share.h` has constants necessary for using safe open CRT functions.

Also rename `lib/share.c` to keep matching the header.

Ref: https://learn.microsoft.com/cpp/c-runtime-library/sharing-constants
Ref: 625f2c1644 #16949 #16991
Cherry-picked from #19643
Closes #19676

lib/Makefile.inc

@@ -172,6 +172,7 @@ LIB_CFILES =         \
   curl_rtmp.c        \
   curl_sasl.c        \
   curl_sha512_256.c  \
+  curl_share.c       \
   curl_sspi.c        \
   curl_threads.c     \
   curl_trc.c         \
@@ -242,7 +243,6 @@ LIB_CFILES =         \
   sendf.c            \
   setopt.c           \
   sha256.c           \
-  share.c            \
   slist.c            \
   smb.c              \
   smtp.c             \
@@ -311,6 +311,7 @@ LIB_HFILES =         \
   curl_setup_once.h  \
   curl_sha256.h      \
   curl_sha512_256.h  \
+  curl_share.h       \
   curl_sspi.h        \
   curl_threads.h     \
   curl_trc.h         \
@@ -376,7 +377,6 @@ LIB_HFILES =         \
   setup-os400.h      \
   setup-vms.h        \
   setup-win32.h      \
-  share.h            \
   sigpipe.h          \
   slist.h            \
   smb.h              \

lib/asyn-ares.c

@@ -52,7 +52,7 @@
 #include "sendf.h"
 #include "hostip.h"
 #include "hash.h"
-#include "share.h"
+#include "curl_share.h"
 #include "url.h"
 #include "multiif.h"
 #include "curlx/inet_pton.h"

lib/asyn-base.c

@@ -51,7 +51,7 @@
 #include "hash.h"
 #include "multiif.h"
 #include "select.h"
-#include "share.h"
+#include "curl_share.h"
 #include "url.h"
 #include "curl_memory.h"
 /* The last #include file should be: */

lib/asyn-thrdd.c

@@ -59,7 +59,7 @@
 #include "sendf.h"
 #include "hostip.h"
 #include "hash.h"
-#include "share.h"
+#include "curl_share.h"
 #include "url.h"
 #include "multiif.h"
 #include "curl_threads.h"

lib/cf-socket.c

@@ -75,7 +75,7 @@
 #include "conncache.h"
 #include "multihandle.h"
 #include "rand.h"
-#include "share.h"
+#include "curl_share.h"
 #include "strdup.h"
 #include "system_win32.h"
 #include "curlx/version_win32.h"

lib/conncache.c

@@ -38,7 +38,7 @@
 #include "conncache.h"
 #include "http_negotiate.h"
 #include "http_ntlm.h"
-#include "share.h"
+#include "curl_share.h"
 #include "sigpipe.h"
 #include "connect.h"
 #include "select.h"

lib/connect.c

@@ -72,7 +72,7 @@
 #include "curlx/warnless.h"
 #include "conncache.h"
 #include "multihandle.h"
-#include "share.h"
+#include "curl_share.h"
 #include "http_proxy.h"
 #include "socks.h"
 

lib/cookie.c

@@ -31,7 +31,7 @@
 #include "psl.h"
 #include "sendf.h"
 #include "slist.h"
-#include "share.h"
+#include "curl_share.h"
 #include "strcase.h"
 #include "curl_fopen.h"
 #include "curl_get_line.h"

lib/curl_share.c

@@ -27,7 +27,7 @@
 #include <curl/curl.h>
 #include "urldata.h"
 #include "connect.h"
-#include "share.h"
+#include "curl_share.h"
 #include "psl.h"
 #include "vtls/vtls.h"
 #include "vtls/vtls_scache.h"

lib/doh.c

@@ -33,7 +33,7 @@
 #include "sendf.h"
 #include "multiif.h"
 #include "url.h"
-#include "share.h"
+#include "curl_share.h"
 #include "curlx/base64.h"
 #include "connect.h"
 #include "strdup.h"

lib/easy.c

@@ -53,7 +53,7 @@
 #include "url.h"
 #include "getinfo.h"
 #include "hostip.h"
-#include "share.h"
+#include "curl_share.h"
 #include "strdup.h"
 #include "progress.h"
 #include "easyif.h"

lib/hostip.c

@@ -50,7 +50,7 @@
 #include "hostip.h"
 #include "hash.h"
 #include "rand.h"
-#include "share.h"
+#include "curl_share.h"
 #include "url.h"
 #include "curlx/inet_ntop.h"
 #include "curlx/inet_pton.h"

lib/hostip4.c

@@ -47,7 +47,7 @@
 #include "sendf.h"
 #include "hostip.h"
 #include "hash.h"
-#include "share.h"
+#include "curl_share.h"
 #include "url.h"
 
 /* The last 2 #include files should be in this order */

lib/hostip6.c

@@ -48,7 +48,7 @@
 #include "sendf.h"
 #include "hostip.h"
 #include "hash.h"
-#include "share.h"
+#include "curl_share.h"
 #include "url.h"
 #include "curlx/inet_pton.h"
 #include "connect.h"

lib/hsts.c

@@ -37,7 +37,7 @@
 #include "sendf.h"
 #include "parsedate.h"
 #include "rename.h"
-#include "share.h"
+#include "curl_share.h"
 #include "strdup.h"
 #include "curlx/strparse.h"
 

lib/http.c

@@ -65,7 +65,7 @@
 #include "http_aws_sigv4.h"
 #include "url.h"
 #include "urlapi-int.h"
-#include "share.h"
+#include "curl_share.h"
 #include "hostip.h"
 #include "dynhds.h"
 #include "http.h"

lib/multi.c

@@ -33,7 +33,7 @@
 #include "connect.h"
 #include "progress.h"
 #include "easyif.h"
-#include "share.h"
+#include "curl_share.h"
 #include "psl.h"
 #include "multiif.h"
 #include "multi_ev.h"

lib/psl.c

@@ -29,7 +29,7 @@
 #ifdef USE_LIBPSL
 
 #include "psl.h"
-#include "share.h"
+#include "curl_share.h"
 
 /* The last 2 #include files should be in this order */
 #include "curl_memory.h"

lib/setopt.c

@@ -41,7 +41,7 @@
 #include "progress.h"
 #include "content_encoding.h"
 #include "strcase.h"
-#include "share.h"
+#include "curl_share.h"
 #include "vtls/vtls.h"
 #include "curlx/warnless.h"
 #include "sendf.h"

lib/url.c

@@ -81,7 +81,7 @@
 #include "cookie.h"
 #include "strcase.h"
 #include "escape.h"
-#include "share.h"
+#include "curl_share.h"
 #include "content_encoding.h"
 #include "http_digest.h"
 #include "http_negotiate.h"

lib/vtls/vtls.c

@@ -63,7 +63,7 @@
 #include "../strcase.h"
 #include "../url.h"
 #include "../progress.h"
-#include "../share.h"
+#include "../curl_share.h"
 #include "../multiif.h"
 #include "../curlx/fopen.h"
 #include "../curlx/timeval.h"

lib/vtls/vtls_scache.c

@@ -41,7 +41,7 @@
 #include "../strcase.h"
 #include "../url.h"
 #include "../llist.h"
-#include "../share.h"
+#include "../curl_share.h"
 #include "../curl_trc.h"
 #include "../curl_sha256.h"
 #include "../rand.h"

tests/unit/unit1607.c

@@ -25,7 +25,7 @@
 
 #include "urldata.h"
 #include "connect.h"
-#include "share.h"
+#include "curl_share.h"
 
 #include "memdebug.h" /* LAST include file */
 

tests/unit/unit1609.c

@@ -25,7 +25,7 @@
 
 #include "urldata.h"
 #include "connect.h"
-#include "share.h"
+#include "curl_share.h"
 
 #include "memdebug.h" /* LAST include file */