fix several compiler warnings

lib/base64.c

@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * 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
@@ -58,11 +58,11 @@ static void decodeQuantum(unsigned char *dest, const char *src)
       x = (x << 6);
   }
 
-  dest[2] = curlx_ultouc(x);
+  dest[2] = curlx_ultouc(x & 0xFFUL);
   x >>= 8;
-  dest[1] = curlx_ultouc(x);
+  dest[1] = curlx_ultouc(x & 0xFFUL);
   x >>= 8;
-  dest[0] = curlx_ultouc(x);
+  dest[0] = curlx_ultouc(x & 0xFFUL);
 }
 
 /*

lib/http_digest.c

@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * 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
@@ -34,6 +34,7 @@
 #include "url.h" /* for Curl_safefree() */
 #include "curl_memory.h"
 #include "non-ascii.h" /* included for Curl_convert_... prototypes */
+#include "warnless.h"
 
 #define _MPRINTF_REPLACE /* use our functions only */
 #include <curl/mprintf.h>
@@ -416,7 +417,8 @@ CURLcode Curl_output_digest(struct connectdata *conn,
   */
   if(authp->iestyle && ((tmp = strchr((char *)uripath, '?')) != NULL)) {
     md5this = (unsigned char *)aprintf("%s:%.*s", request,
-                                       (int)(tmp - (char *)uripath), uripath);
+                                       curlx_sztosi(tmp - (char *)uripath),
+                                       uripath);
   }
   else
     md5this = (unsigned char *)aprintf("%s:%s", request, uripath);

lib/ssh.c

@@ -108,6 +108,10 @@
                          have their definition hidden well */
 #endif
 
+#define sftp_libssh2_realpath(s,p,t,m) \
+        libssh2_sftp_symlink_ex((s), (p), curlx_uztoui(strlen(p)), \
+                                (t), (m), LIBSSH2_SFTP_REALPATH)
+
 /* Local functions: */
 static const char *sftp_libssh2_strerror(unsigned long err);
 static LIBSSH2_ALLOC_FUNC(my_libssh2_malloc);
@@ -982,7 +986,7 @@ static CURLcode ssh_statemach_act(struct connectdata *conn, bool *block)
       /*
        * Get the "home" directory
        */
-      rc = libssh2_sftp_realpath(sshc->sftp_session, ".",
+      rc = sftp_libssh2_realpath(sshc->sftp_session, ".",
                                  tempHome, PATH_MAX-1);
       if(rc == LIBSSH2_ERROR_EAGAIN) {
         break;

lib/ssluse.c

@@ -145,7 +145,7 @@
 static char global_passwd[64];
 #endif
 
-static int passwd_callback(char *buf, int num, int verify
+static int passwd_callback(char *buf, int num, int encrypting
 #ifdef HAVE_USERDATA_IN_PWD_CALLBACK
                            /* This was introduced in 0.9.4, we can set this
                               using SSL_CTX_set_default_passwd_cb_userdata()
@@ -154,12 +154,13 @@ static int passwd_callback(char *buf, int num, int verify
 #endif
                            )
 {
-  if(verify)
+  DEBUGASSERT(0 == encrypting);
-    fprintf(stderr, "%s\n", buf);
+
-  else {
+  if(!encrypting) {
-    if(num > (int)strlen((char *)global_passwd)) {
+    int klen = curlx_uztosi(strlen((char *)global_passwd));
-      strcpy(buf, global_passwd);
+    if(num > klen) {
-      return (int)strlen(buf);
+      memcpy(buf, global_passwd, klen+1);
+      return klen;
     }
   }
   return 0;
@@ -339,6 +340,8 @@ int cert_stuff(struct connectdata *conn,
       size_t len = strlen(data->set.str[STRING_KEY_PASSWD]);
       if(len < sizeof(global_passwd))
         memcpy(global_passwd, data->set.str[STRING_KEY_PASSWD], len+1);
+      else
+        global_passwd[0] = '\0';
 #else
       /*
        * We set the password in the callback userdata

lib/warnless.c

@@ -131,6 +131,7 @@ unsigned short curlx_ultous(unsigned long ulnum)
 #  pragma warning(disable:810) /* conversion may lose significant bits */
 #endif
 
+  DEBUGASSERT(ulnum <= (unsigned long) CURL_MASK_USHORT);
   return (unsigned short)(ulnum & (unsigned long) CURL_MASK_USHORT);
 
 #ifdef __INTEL_COMPILER
@@ -149,6 +150,7 @@ unsigned char curlx_ultouc(unsigned long ulnum)
 #  pragma warning(disable:810) /* conversion may lose significant bits */
 #endif
 
+  DEBUGASSERT(ulnum <= (unsigned long) CURL_MASK_UCHAR);
   return (unsigned char)(ulnum & (unsigned long) CURL_MASK_UCHAR);
 
 #ifdef __INTEL_COMPILER
@@ -167,6 +169,7 @@ int curlx_uztosi(size_t uznum)
 #  pragma warning(disable:810) /* conversion may lose significant bits */
 #endif
 
+  DEBUGASSERT(uznum <= (size_t) CURL_MASK_SINT);
   return (int)(uznum & (size_t) CURL_MASK_SINT);
 
 #ifdef __INTEL_COMPILER
@@ -224,6 +227,7 @@ int curlx_sltosi(long slnum)
 #endif
 
   DEBUGASSERT(slnum >= 0);
+  DEBUGASSERT((unsigned long) slnum <= (unsigned long) CURL_MASK_SINT);
   return (int)(slnum & (long) CURL_MASK_SINT);
 
 #ifdef __INTEL_COMPILER
@@ -243,6 +247,7 @@ unsigned int curlx_sltoui(long slnum)
 #endif
 
   DEBUGASSERT(slnum >= 0);
+  DEBUGASSERT((unsigned long) slnum <= (unsigned long) CURL_MASK_UINT);
   return (unsigned int)(slnum & (long) CURL_MASK_UINT);
 
 #ifdef __INTEL_COMPILER
@@ -262,6 +267,7 @@ unsigned short curlx_sltous(long slnum)
 #endif
 
   DEBUGASSERT(slnum >= 0);
+  DEBUGASSERT((unsigned long) slnum <= (unsigned long) CURL_MASK_USHORT);
   return (unsigned short)(slnum & (long) CURL_MASK_USHORT);
 
 #ifdef __INTEL_COMPILER
@@ -280,6 +286,7 @@ ssize_t curlx_uztosz(size_t uznum)
 #  pragma warning(disable:810) /* conversion may lose significant bits */
 #endif
 
+  DEBUGASSERT(uznum <= (size_t) CURL_MASK_SSIZE_T);
   return (ssize_t)(uznum & (size_t) CURL_MASK_SSIZE_T);
 
 #ifdef __INTEL_COMPILER
@@ -318,6 +325,7 @@ int curlx_sztosi(ssize_t sznum)
 #endif
 
   DEBUGASSERT(sznum >= 0);
+  DEBUGASSERT((size_t) sznum <= (size_t) CURL_MASK_SINT);
   return (int)(sznum & (ssize_t) CURL_MASK_SINT);
 
 #ifdef __INTEL_COMPILER

tests/libtest/Makefile.inc

@@ -119,7 +119,7 @@ lib549_SOURCES = lib549.c $(SUPPORTFILES)
 
 lib555_SOURCES = lib555.c $(SUPPORTFILES) $(TESTUTIL) $(WARNLESS)
 
-lib552_SOURCES = lib552.c $(SUPPORTFILES)
+lib552_SOURCES = lib552.c $(SUPPORTFILES) $(WARNLESS)
 
 lib553_SOURCES = lib553.c $(SUPPORTFILES)
 
@@ -154,7 +154,7 @@ lib569_SOURCES = lib569.c $(SUPPORTFILES)
 
 lib570_SOURCES = lib570.c $(SUPPORTFILES)
 
-lib571_SOURCES = lib571.c $(SUPPORTFILES)
+lib571_SOURCES = lib571.c $(SUPPORTFILES) $(WARNLESS)
 
 lib572_SOURCES = lib572.c $(SUPPORTFILES)
 

tests/libtest/lib552.c

@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * 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
@@ -25,6 +25,7 @@
 
 #include "test.h"
 
+#include "warnless.h"
 #include "memdebug.h"
 
 struct data {
@@ -136,7 +137,8 @@ static size_t read_callback(void *ptr, size_t size, size_t nmemb, void *stream)
 
 static size_t write_callback(void *ptr, size_t size, size_t nmemb, void *stream)
 {
-  printf("%.*s", (int)(size * nmemb), (char *)ptr);
+  int amount = curlx_uztosi(size * nmemb);
+  printf("%.*s", amount, (char *)ptr);
   (void)stream;
   return size * nmemb;
 }

tests/libtest/lib571.c

@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * 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
@@ -39,6 +39,7 @@
 
 #include <curl/mprintf.h>
 
+#include "warnless.h"
 #include "memdebug.h"
 
 #define RTP_PKT_CHANNEL(p)   ((int)((unsigned char)((p)[1])))
@@ -54,12 +55,14 @@ static int rtp_packet_count = 0;
 static size_t rtp_write(void *ptr, size_t size, size_t nmemb, void *stream) {
   char *data = (char *)ptr;
   int channel = RTP_PKT_CHANNEL(data);
-  int message_size = (int)(size * nmemb) - 4;
+  int message_size;
   int coded_size = RTP_PKT_LENGTH(data);
   size_t failure = (size * nmemb) ? 0 : 1;
   int i;
   (void)stream;
 
+  message_size = curlx_uztosi(size * nmemb) - 4;
+
   printf("RTP: message size %d, channel %d\n", message_size, channel);
   if(message_size != coded_size) {
     printf("RTP embedded size (%d) does not match the write size (%d).\n",

tests/libtest/testtrace.c

@@ -113,7 +113,7 @@ int libtest_debug_cb(CURL *handle, curl_infotype type,
 
   switch (type) {
   case CURLINFO_TEXT:
-    fprintf(stderr, "%s== Info: %s", timestr, data);
+    fprintf(stderr, "%s== Info: %s", timestr, (char *)data);
   default: /* in case a new one is introduced to shock us */
     return 0;