curl: remove tool_writeenv.[ch]

... and USE_ENVIRONMENT and --environment. It was once added for RISC OS
support and its platform specific behavior has been annoying ever
since. Added in commit c3c8bbd3b2688da8e, mostly unchanged since
then. Most probably not actually used for years.

Closes #1463

8 files changed, 2 insertions, 170 deletions

diff --git a/src/Makefile.inc b/src/Makefile.inc
index 2196ffa33..5074f8fc6 100644
--- a/src/Makefile.inc
+++ b/src/Makefile.inc
@@ -58,7 +58,6 @@ CURL_CFILES = \
 	tool_urlglob.c \
 	tool_util.c \
 	tool_vms.c \
-	tool_writeenv.c \
 	tool_writeout.c \
 	tool_xattr.c
 
@@ -103,7 +102,6 @@ CURL_HFILES = \
 	tool_util.h \
 	tool_version.h \
 	tool_vms.h \
-	tool_writeenv.h \
 	tool_writeout.h \
 	tool_xattr.h
 
diff --git a/src/makefile.dj b/src/makefile.dj
index c3bbc237f..fbd2d3738 100644
--- a/src/makefile.dj
+++ b/src/makefile.dj
@@ -53,8 +53,6 @@ endif
 
 EX_LIBS += $(WATT32_ROOT)/lib/libwatt.a
 
-CFLAGS += -DUSE_ENVIRONMENT
-
 PROGRAM  = curl.exe
 OBJECTS += $(addprefix $(OBJ_DIR)/, $(CSOURCES:.c=.o))
 
diff --git a/src/tool_cfgable.h b/src/tool_cfgable.h
index b7fe1d340..38777f6fd 100644
--- a/src/tool_cfgable.h
+++ b/src/tool_cfgable.h
@@ -7,7 +7,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2017, 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
@@ -151,7 +151,6 @@ struct OperationConfig {
   bool proxybasic;
   bool proxyanyauth;
   char *writeout;           /* %-styled format string to output */
-  bool writeenv;            /* write results to environment, if available */
   struct curl_slist *quote;
   struct curl_slist *postquote;
   struct curl_slist *prequote;
diff --git a/src/tool_getparam.c b/src/tool_getparam.c
index 315a9cf4a..fde819e8d 100644
--- a/src/tool_getparam.c
+++ b/src/tool_getparam.c
@@ -84,9 +84,6 @@ static const struct LongShort aliases[]= {
   {"*E", "epsv",                     ARG_BOOL},
          /* 'epsv' made like this to make --no-epsv and --epsv to work
              although --disable-epsv is the documented option */
-#ifdef USE_ENVIRONMENT
-  {"*f", "environment",              ARG_BOOL},
-#endif
   {"*F", "dns-servers",              ARG_STRING},
   {"*g", "trace",                    ARG_STRING},
   {"*G", "npn",                      ARG_BOOL},
@@ -562,11 +559,6 @@ ParameterError getparameter(char *flag,    /* f or -long-flag */
       case 'E': /* --epsv */
         config->disable_epsv = (!toggle)?TRUE:FALSE;
         break;
-#ifdef USE_ENVIRONMENT
-      case 'f':
-        config->writeenv = toggle;
-        break;
-#endif
       case 'F': /* --dns-servers */
         /* IP addrs of DNS servers */
         GetStr(&config->dns_servers, nextarg);
diff --git a/src/tool_help.c b/src/tool_help.c
index 86d35899a..83a0276a1 100644
--- a/src/tool_help.c
+++ b/src/tool_help.c
@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2017, 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
@@ -81,9 +81,6 @@ static const char *const helptext[] = {
   " -D, --dump-header FILE  Write the received headers to FILE",
   "     --egd-file FILE  EGD socket path for random data (SSL)",
   "     --engine ENGINE  Crypto engine (use \"--engine list\" for list) (SSL)",
-#ifdef USE_ENVIRONMENT
-  "     --environment   Write results to environment variables (RISC OS)",
-#endif
   "     --expect100-timeout SECONDS How long to wait for 100-continue (H)",
   " -f, --fail          Fail silently (no output at all) on HTTP errors (H)",
   "     --fail-early    Fail on first transfer error, do not continue",
diff --git a/src/tool_operate.c b/src/tool_operate.c
index 5a129bd34..6f1525e8b 100644
--- a/src/tool_operate.c
+++ b/src/tool_operate.c
@@ -71,7 +71,6 @@
 #include "tool_sleep.h"
 #include "tool_urlglob.h"
 #include "tool_util.h"
-#include "tool_writeenv.h"
 #include "tool_writeout.h"
 #include "tool_xattr.h"
 #include "tool_vms.h"
@@ -1748,9 +1747,6 @@ static CURLcode operate_do(struct GlobalConfig *global,
         if(config->writeout)
           ourWriteOut(curl, &outs, config->writeout);
 
-        if(config->writeenv)
-          ourWriteEnv(curl);
-
         /*
         ** Code within this loop may jump directly here to label 'show_error'
         ** in order to display an error message for CURLcode stored in 'res'
diff --git a/src/tool_writeenv.c b/src/tool_writeenv.c
deleted file mode 100644
index 0bc075aba..000000000
--- a/src/tool_writeenv.c
+++ /dev/null
@@ -1,113 +0,0 @@
-/***************************************************************************
- *                                  _   _ ____  _
- *  Project                     ___| | | |  _ \| |
- *                             / __| | | | |_) | |
- *                            | (__| |_| |  _ <| |___
- *                             \___|\___/|_| \_\_____|
- *
- * Copyright (C) 1998 - 2016, 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.
- *
- ***************************************************************************/
-#include "tool_setup.h"
-
-#ifdef USE_ENVIRONMENT
-
-#ifdef __riscos__
-#  include <kernel.h>
-#endif
-
-#include <curl/mprintf.h>
-#include "tool_writeenv.h"
-#include "memdebug.h" /* keep this as LAST include */
-
-static const struct
-{
-  const char *name;
-  CURLINFO id;
-  enum {
-    writeenv_NONE,
-    writeenv_DOUBLE,
-    writeenv_LONG,
-    writeenv_STRING
-  } type;
-} variables[14] =
-{
-  {"curl_url_effective", CURLINFO_EFFECTIVE_URL, writeenv_STRING},
-  {"curl_http_code", CURLINFO_RESPONSE_CODE, writeenv_LONG},
-  {"curl_time_total", CURLINFO_TOTAL_TIME, writeenv_DOUBLE},
-  {"curl_time_namelookup", CURLINFO_NAMELOOKUP_TIME, writeenv_DOUBLE},
-  {"curl_time_connect", CURLINFO_CONNECT_TIME, writeenv_DOUBLE},
-  {"curl_time_pretransfer", CURLINFO_PRETRANSFER_TIME, writeenv_DOUBLE},
-  {"curl_time_starttransfer", CURLINFO_STARTTRANSFER_TIME, writeenv_DOUBLE},
-  {"curl_size_header", CURLINFO_HEADER_SIZE, writeenv_LONG},
-  {"curl_size_request", CURLINFO_REQUEST_SIZE, writeenv_LONG},
-  {"curl_size_download", CURLINFO_SIZE_DOWNLOAD, writeenv_DOUBLE},
-  {"curl_size_upload", CURLINFO_SIZE_UPLOAD, writeenv_DOUBLE},
-  {"curl_speed_download", CURLINFO_SPEED_DOWNLOAD, writeenv_DOUBLE},
-  {"curl_speed_upload", CURLINFO_SPEED_UPLOAD, writeenv_DOUBLE},
-  {NULL, 0, writeenv_NONE}
- };
-
-static void internalSetEnv(const char *name, char *value)
-{
-  /* Add your OS-specific code here. */
-#ifdef __riscos__
-  _kernel_setenv(name, value);
-#elif defined (CURLDEBUG)
-  curl_memlog("ENV %s = %s\n", name, value);
-#endif
-  return;
-}
-
-void ourWriteEnv(CURL *curl)
-{
-  unsigned int i;
-  char *string, numtext[10];
-  long longinfo;
-  double doubleinfo;
-
-  for(i=0; variables[i].name; i++) {
-    switch(variables[i].type) {
-    case writeenv_STRING:
-      if(curl_easy_getinfo(curl, variables[i].id, &string) == CURLE_OK)
-        internalSetEnv(variables[i].name, string);
-      else
-        internalSetEnv(variables[i].name, NULL);
-      break;
-
-    case writeenv_LONG:
-      if(curl_easy_getinfo(curl, variables[i].id, &longinfo) == CURLE_OK) {
-        curl_msprintf(numtext, "%5ld", longinfo);
-        internalSetEnv(variables[i].name, numtext);
-      }
-      else
-        internalSetEnv(variables[i].name, NULL);
-      break;
-    case writeenv_DOUBLE:
-      if(curl_easy_getinfo(curl, variables[i].id, &doubleinfo) == CURLE_OK) {
-        curl_msprintf(numtext, "%6.2f", doubleinfo);
-        internalSetEnv(variables[i].name, numtext);
-      }
-      else
-        internalSetEnv(variables[i].name, NULL);
-      break;
-    default:
-      break;
-    }
-  }
-
-  return;
-}
-
-#endif
diff --git a/src/tool_writeenv.h b/src/tool_writeenv.h
deleted file mode 100644
index 55daf4889..000000000
--- a/src/tool_writeenv.h
+++ /dev/null
@@ -1,35 +0,0 @@
-#ifndef HEADER_CURL_TOOL_WRITEENV_H
-#define HEADER_CURL_TOOL_WRITEENV_H
-/***************************************************************************
- *                                  _   _ ____  _
- *  Project                     ___| | | |  _ \| |
- *                             / __| | | | |_) | |
- *                            | (__| |_| |  _ <| |___
- *                             \___|\___/|_| \_\_____|
- *
- * Copyright (C) 1998 - 2012, 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.
- *
- ***************************************************************************/
-#include "tool_setup.h"
-
-#ifdef USE_ENVIRONMENT
-
-void ourWriteEnv(CURL *curl);
-
-#else
-#  define ourWriteEnv(x)  Curl_nop_stmt
-#endif
-
-#endif /* HEADER_CURL_TOOL_WRITEENV_H */
-