diff options
Diffstat (limited to 'lib/util/string_wrappers.h')
-rw-r--r-- | lib/util/string_wrappers.h | 56 |
1 files changed, 26 insertions, 30 deletions
diff --git a/lib/util/string_wrappers.h b/lib/util/string_wrappers.h index 75718e942b..37384fc5a3 100644 --- a/lib/util/string_wrappers.h +++ b/lib/util/string_wrappers.h @@ -41,28 +41,36 @@ size_t __unsafe_string_function_usage_here_size_t__(void); #endif /* HAVE_COMPILER_WILL_OPTIMIZE_OUT_FNS */ -#define safe_strcpy_base(dest, src, base, size) \ - safe_strcpy(dest, src, size-PTR_DIFF(dest,base)-1) +#define strlcpy_base(dest, src, base, size) \ +do { \ + const char *_strlcpy_base_src = (const char *)src; \ + strlcpy((dest), _strlcpy_base_src? _strlcpy_base_src : "", (size)-PTR_DIFF((dest),(base))); \ +} while (0) /* String copy functions - macro hell below adds 'type checking' (limited, but the best we can do in C) */ -#define fstrcpy(d,s) safe_strcpy((d),(s),sizeof(fstring)-1) -#define fstrcat(d,s) safe_strcat((d),(s),sizeof(fstring)-1) -#define nstrcpy(d,s) safe_strcpy((d), (s),sizeof(nstring)-1) -#define unstrcpy(d,s) safe_strcpy((d), (s),sizeof(unstring)-1) - -/* the addition of the DEVELOPER checks in safe_strcpy means we must - * update a lot of code. To make this a little easier here are some - * functions that provide the lengths with less pain */ - -/* overmalloc_safe_strcpy: DEPRECATED! Used when you know the - * destination buffer is longer than maxlength, but you don't know how - * long. This is not a good situation, because we can't do the normal - * sanity checks. Don't use in new code! */ - -#define overmalloc_safe_strcpy(dest,src,maxlength) \ - safe_strcpy_fn(dest,src,maxlength) +#define fstrcpy(d,s) \ +do { \ + const char *_fstrcpy_src = (const char *)(s); \ + strlcpy((d),_fstrcpy_src ? _fstrcpy_src : "",sizeof(fstring)); \ +} while (0) + +#define fstrcat(d,s) \ +do { \ + const char *_fstrcat_src = (const char *)(s); \ + strlcat((d),_fstrcat_src ? _fstrcat_src : "",sizeof(fstring)); \ +} while (0) +#define nstrcpy(d,s) \ +do { \ + const char *_nstrcpy_src = (const char *)(s); \ + strlcpy((d),_nstrcpy_src ? _nstrcpy_src : "",sizeof(fstring)); \ +} while (0) +#define unstrcpy(d,s) \ +do { \ + const char *_unstrcpy_src = (const char *)(s); \ + strlcpy((d),_unstrcpy_src ? _unstrcpy_src : "",sizeof(fstring)); \ +} while (0) #ifdef HAVE_COMPILER_WILL_OPTIMIZE_OUT_FNS @@ -70,16 +78,6 @@ size_t __unsafe_string_function_usage_here_size_t__(void); have the correct types (this works only where sizeof() returns the size of the buffer, not the size of the pointer). */ -#define safe_strcpy(d, s, max_len) \ - (CHECK_STRING_SIZE(d, max_len+1) \ - ? __unsafe_string_function_usage_here__() \ - : safe_strcpy_fn((d), (s), (max_len))) - -#define safe_strcat(d, s, max_len) \ - (CHECK_STRING_SIZE(d, max_len+1) \ - ? __unsafe_string_function_usage_here__() \ - : safe_strcat_fn((d), (s), (max_len))) - #define push_string_check(dest, src, dest_len, flags) \ (CHECK_STRING_SIZE(dest, dest_len) \ ? __unsafe_string_function_usage_here_size_t__() \ @@ -113,8 +111,6 @@ size_t __unsafe_string_function_usage_here_size_t__(void); #else -#define safe_strcpy safe_strcpy_fn -#define safe_strcat safe_strcat_fn #define push_string_check push_string_check_fn #define clistr_push clistr_push_fn #define clistr_pull clistr_pull_fn |