Taint: hybrid checking mode

[users/heiko/exim.git] / src / src / mytypes.h

diff --git a/src/src/mytypes.h b/src/src/mytypes.h
index d652daea3637a1ff3382882456d9efa7daa3894f..6d2f169b7fc342f9a68679cb87277322bb9e7cc5 100644 (file)
--- a/src/src/mytypes.h
+++ b/src/src/mytypes.h
@@ -94,28 +94,24 @@ functions that are called quite often; for other calls to external libraries
 #define Ulstat(s,t)        lstat(CCS(s),t)
 
 #ifdef O_BINARY                                                        /* This is for Cygwin,  */
-#define Uopen(s,n,m)       exim_open(CCS(s),(n)|O_BINARY,m)    /* where all files must */
-#define Uopen2(s,n)        exim_open2(CCS(s),(n)|O_BINARY)
+# define Uopen(s,n,m)       exim_open(CCS(s),(n)|O_BINARY,m)   /* where all files must */
+# define Uopen2(s,n)        exim_open2(CCS(s),(n)|O_BINARY)
 #else                                                          /* be opened as binary  */
-#define Uopen(s,n,m)       exim_open(CCS(s),n,m)               /* to avoid problems    */
-#define Uopen2(s,n)        exim_open2(CCS(s),n)        
+# define Uopen(s,n,m)       exim_open(CCS(s),n,m)              /* to avoid problems    */
+# define Uopen2(s,n)        exim_open2(CCS(s),n)       
 #endif                                                         /* with CRLF endings.   */
 #define Uread(f,b,l)       read(f,CS(b),l)
 #define Urename(s,t)       rename(CCS(s),CCS(t))
 #define Ustat(s,t)         stat(CCS(s),t)
-#define Ustrcat(s,t)       __Ustrcat(s, CUS(t), __FUNCTION__, __LINE__)
 #define Ustrchr(s,n)       US strchr(CCS(s),n)
 #define CUstrchr(s,n)      CUS strchr(CCS(s),n)
 #define CUstrerror(n)      CUS strerror(n)
 #define Ustrcmp(s,t)       strcmp(CCS(s),CCS(t))
-#define Ustrcpy(s,t)       __Ustrcpy(s, CUS(t), __FUNCTION__, __LINE__)
 #define Ustrcpy_nt(s,t)    strcpy(CS s, CCS t)         /* no taint check */
 #define Ustrcspn(s,t)      strcspn(CCS(s),CCS(t))
 #define Ustrftime(s,m,f,t) strftime(CS(s),m,f,t)
 #define Ustrlen(s)         (int)strlen(CCS(s))
-#define Ustrncat(s,t,n)    __Ustrncat(s, CUS(t),n, __FUNCTION__, __LINE__)
 #define Ustrncmp(s,t,n)    strncmp(CCS(s),CCS(t),n)
-#define Ustrncpy(s,t,n)    __Ustrncpy(s, CUS(t),n, __FUNCTION__, __LINE__)
 #define Ustrncpy_nt(s,t,n) strncpy(CS s, CCS t, n)     /* no taint check */
 #define Ustrpbrk(s,t)      strpbrk(CCS(s),CCS(t))
 #define Ustrrchr(s,n)      US strrchr(CCS(s),n)
@@ -128,57 +124,17 @@ functions that are called quite often; for other calls to external libraries
 #define Ustrtoul(s,t,b)    strtoul(CCS(s),CSS(t),b)
 #define Uunlink(s)         unlink(CCS(s))
 
-extern void die_tainted(const uschar *, const uschar *, int);
-
-/* Predicate: if an address is in a tainted pool.
-By extension, a variable pointing to this address is tainted.
-*/
-
-static inline BOOL
-is_tainted(const void * p)
-{
-#if defined(COMPILE_UTILITY) || defined(MACRO_PREDEF)
-return FALSE;
-
-#elif !defined(TAINT_CHECK_FAST)
-extern BOOL is_tainted_fn(const void *);
-return is_tainted_fn(p);
-
+#ifdef EM_VERSION_C
+# define Ustrcat(s,t)       strcat(CS(s), CCS(t))
+# define Ustrcpy(s,t)       strcpy(CS(s), CCS(t))
+# define Ustrncat(s,t,n)    strncat(CS(s), CCS(t), n)
+# define Ustrncpy(s,t,n)    strncpy(CS(s), CCS(t), n)
 #else
-extern void * tainted_base, * tainted_top;
-return p >= tainted_base && p < tainted_top;
-#endif
-}
-
-static inline uschar * __Ustrcat(uschar * dst, const uschar * src, const char * func, int line)
-{
-#if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
-if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrcat", CUS func, line);
-#endif
-return US strcat(CS dst, CCS src);
-}
-static inline uschar * __Ustrcpy(uschar * dst, const uschar * src, const char * func, int line)
-{
-#if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
-if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrcpy", CUS func, line);
-#endif
-return US strcpy(CS dst, CCS src);
-}
-static inline uschar * __Ustrncat(uschar * dst, const uschar * src, size_t n, const char * func, int line)
-{
-#if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
-if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrncat", CUS func, line);
-#endif
-return US strncat(CS dst, CCS src, n);
-}
-static inline uschar * __Ustrncpy(uschar * dst, const uschar * src, size_t n, const char * func, int line)
-{
-#if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
-if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrncpy", CUS func, line);
+# define Ustrcat(s,t)       __Ustrcat(s, CUS(t), __FUNCTION__, __LINE__)
+# define Ustrcpy(s,t)       __Ustrcpy(s, CUS(t), __FUNCTION__, __LINE__)
+# define Ustrncat(s,t,n)    __Ustrncat(s, CUS(t), n, __FUNCTION__, __LINE__)
+# define Ustrncpy(s,t,n)    __Ustrncpy(s, CUS(t), n, __FUNCTION__, __LINE__)
 #endif
-return US strncpy(CS dst, CCS src, n);
-}
-/*XXX will likely need unchecked copy also */
 
 #endif
 /* End of mytypes.h */