Workaround for brain-damaged __FILE__ handling on MSVC: keep Nick's name out

of the warning messages.


svn:r3199

5 files changed, 39 insertions, 10 deletions

diff --git a/src/common/compat.c b/src/common/compat.c
index 1c184de4a2..1b00c6395d 100644
--- a/src/common/compat.c
+++ b/src/common/compat.c
@@ -113,6 +113,29 @@ int tor_vsnprintf(char *str, size_t size, const char *format, va_list args)
   return r;
 }
 
+/** Take a filename and return a pointer to its final element.  This
+ * function is called on __FILE__ to fix a MSVC nit where __FILE__
+ * contains the full path to the file.  This is bad, because it
+ * confuses users to find the home directory of the person who
+ * compiled the binary in their warrning messages.
+ */
+const char *
+_tor_fix_source_file(const char *fname)
+{
+  const char *cp1, *cp2;
+  cp1 = strrchr(fname, '/');
+  cp2 = strrchr(fname, '\\');
+  if (cp1 && cp2) {
+    return (cp1<cp2)?(cp2+1):(cp1+1);
+  } else if (cp1) {
+    return cp1+1;
+  } else if (cp2) {
+    return cp2+2;
+  } else {
+    return fname;
+  }
+}
+
 #ifndef UNALIGNED_INT_ACCESS_OK
 /**
  * Read a 16-bit value beginning at <b>cp</b>.  Equivalent to
diff --git a/src/common/compat.h b/src/common/compat.h
index 20c243e500..48163a95fc 100644
--- a/src/common/compat.h
+++ b/src/common/compat.h
@@ -86,6 +86,9 @@ int tor_vsnprintf(char *str, size_t size, const char *format, va_list args);
 #define TOR_ISXDIGIT(c) isxdigit((int)(unsigned char)(c))
 #define TOR_ISDIGIT(c)   isdigit((int)(unsigned char)(c))
 
+#define _SHORT_FILE_ (_tor_fix_source_file(__FILE__))
+const char *_tor_fix_source_file(const char *fname);
+
 /* ===== Time compatibility */
 #if !defined(HAVE_GETTIMEOFDAY) && !defined(HAVE_STRUCT_TIMEVAL_TV_SEC)
 struct timeval {
diff --git a/src/common/test.h b/src/common/test.h
index 083d00eae9..12731a53bc 100644
--- a/src/common/test.h
+++ b/src/common/test.h
@@ -13,6 +13,7 @@
 
 #include <string.h>
 #include <stdio.h>
+#include "compat.h"
 
 #define STMT_BEGIN  do {
 #define STMT_END    } while (0)
@@ -29,7 +30,7 @@ extern int have_failed;
   STMT_BEGIN                                                    \
     have_failed = 1;                                            \
     printf("\nFile %s: line %d (%s): assertion failed.",        \
-      __FILE__,                                                 \
+      _SHORT_FILE_,                                             \
       __LINE__,                                                 \
       PRETTY_FUNCTION);                                         \
     return;                                                     \
@@ -40,7 +41,7 @@ extern int have_failed;
   if (expr) { printf("."); fflush(stdout); } else {             \
     have_failed = 1;                                            \
     printf("\nFile %s: line %d (%s): assertion failed: (%s)\n", \
-      __FILE__,                                                 \
+      _SHORT_FILE_,                                             \
       __LINE__,                                                 \
       PRETTY_FUNCTION,                                          \
       #expr);                                                   \
@@ -54,7 +55,7 @@ extern int have_failed;
     have_failed = 1;                                            \
     printf("\nFile %s: line %d (%s): Assertion failed: (%s==%s)\n"\
            "      (%ld != %ld)\n",                              \
-      __FILE__,                                                 \
+      _SHORT_FILE_,                                             \
       __LINE__,                                                 \
       PRETTY_FUNCTION,                                          \
       #expr1, #expr2,                                           \
@@ -69,7 +70,7 @@ extern int have_failed;
     have_failed = 1;                                            \
     printf("\nFile %s: line %d (%s): Assertion failed: (%s!=%s)\n"\
            "      (%ld == %ld)\n",                              \
-      __FILE__,                                                 \
+      _SHORT_FILE_,                                             \
       __LINE__,                                                 \
       PRETTY_FUNCTION,                                          \
       #expr1, #expr2,                                           \
@@ -84,7 +85,7 @@ extern int have_failed;
     have_failed = 1;                                            \
     printf("\nFile %s: line %d (%s): Assertion failed: (%s==%s)\n"\
            "      (\"%s\" != \"%s\")\n",                        \
-      __FILE__,                                                 \
+      _SHORT_FILE_,                                             \
       __LINE__,                                                 \
       PRETTY_FUNCTION,                                          \
       #expr1, #expr2,                                           \
@@ -99,7 +100,7 @@ extern int have_failed;
     have_failed = 1;                                            \
     printf("\nFile %s: line %d (%s): Assertion failed: (%s!=%s)\n"\
            "      (\"%s\" == \"%s\")\n",                        \
-      __FILE__,                                                 \
+      _SHORT_FILE_,                                             \
       __LINE__,                                                 \
       PRETTY_FUNCTION,                                          \
       #expr1, #expr2,                                           \
@@ -113,7 +114,7 @@ extern int have_failed;
     if (!memcmp(v1,v2,(len))) { printf("."); fflush(stdout); } else {\
     have_failed = 1;                                            \
     printf("\nFile %s: line %d (%s): Assertion failed: (%s==%s)\n", \
-      __FILE__,                                                 \
+      _SHORT_FILE_,                                             \
       __LINE__,                                                 \
       PRETTY_FUNCTION,                                          \
       #expr1, #expr2);                                          \
@@ -126,7 +127,7 @@ extern int have_failed;
     if (memcmp(v1,v2,(len))) { printf("."); fflush(stdout); } else {\
     have_failed = 1;                                            \
     printf("\nFile %s: line %d (%s): Assertion failed: (%s!=%s)\n", \
-      __FILE__,                                                 \
+      _SHORT_FILE_,                                             \
       __LINE__,                                                 \
       PRETTY_FUNCTION,                                          \
       #expr1, #expr2);                                          \
diff --git a/src/common/tortls.h b/src/common/tortls.h
index 7c6248e8a6..33fe573a50 100644
--- a/src/common/tortls.h
+++ b/src/common/tortls.h
@@ -12,6 +12,7 @@
  **/
 
 #include "../common/crypto.h"
+#include "../common/compat.h"
 
 /* Opaque structure to hold a TLS connection. */
 typedef struct tor_tls_st tor_tls;
@@ -42,7 +43,7 @@ unsigned long tor_tls_get_n_bytes_written(tor_tls *tls);
 
 /* Log and abort if there are unhandled TLS errors in OpenSSL's error stack.
  */
-#define assert_no_tls_errors() _assert_no_tls_errors(__FILE__,__LINE__)
+#define assert_no_tls_errors() _assert_no_tls_errors(_SHORT_FILE_,__LINE__)
 
 void _assert_no_tls_errors(const char *fname, int line);
 
diff --git a/src/common/util.h b/src/common/util.h
index 9fe7262aab..f1b1bff613 100644
--- a/src/common/util.h
+++ b/src/common/util.h
@@ -13,6 +13,7 @@
 
 #include "orconfig.h"
 #include "torint.h"
+#include "compat.h"
 #include <stdio.h>
 #ifdef HAVE_SYS_TIME_H
 #include <sys/time.h>
@@ -38,7 +39,7 @@
 #define tor_assert(expr) do {                                 \
  if (!(expr)) {                                               \
    log(LOG_ERR, "%s:%d: %s: Assertion %s failed; aborting.",  \
-       __FILE__, __LINE__, __FUNCTION__, #expr);              \
+       _SHORT_FILE_, __LINE__, __FUNCTION__, #expr);          \
    assert(expr); /* write to console too. */                  \
    abort();  /* unreached */                                  \
  } } while (0)