I have an old project that is mixed C and C++. It makes extensive use of C strings and of strcpy
,strcat
,strncpy
,strncat
etc. I've uncovered a number of buffer overflows, and I'd like to use more secure functions, such as strcpy_s
. MSVC includes those functions, but I need something that will work on various platforms - linux, osx, and windows at the least.
I do know of strlcpy
, but as plenty of people have noted (example), it really isn't an improvement.
So: Are there any free implementations of strcpy_s
, strcat_s
, etc, or of the entire TR24731-1
?
I need something that's either public domain
or BSD
, but if you know of implementations under other licenses, go ahead and list them - I'm sure someone else will benefit.
Try with the Safe C library. It's under the MIT license and according to this list implements the functions you're looking for:
The Safe C Library provides bound checking memory and string functions per ISO/IEC TR24731. These functions are alternative functions to the existing standard C library that promote safer, more secure programming