release/src/router/vsftpd/secbuf.h

   1 #ifndef VSF_SECBUF_H
   2 #define VSF_SECBUF_H
   3
   4 /* vsf_secbuf_alloc()
   5  * PURPOSE
   6  * Allocate a "secure buffer". A secure buffer is one which will attempt to
   7  * catch out of bounds accesses by crashing the program (rather than
   8  * corrupting memory). It works by using UNIX memory protection. It isn't
   9  * foolproof.
  10  * PARAMETERS
  11  * p_ptr        - pointer to a pointer which is to contain the secure buffer.
  12  *                Any previous buffer pointed to is freed.
  13  * size         - size in bytes required for the secure buffer.
  14  */
  15 void vsf_secbuf_alloc(char** p_ptr, unsigned int size);
  16
  17 /* vsf_secbuf_free()
  18  * PURPOSE
  19  * Frees a "secure buffer".
  20  * PARAMETERS
  21  * p_ptr        - pointer to a pointer containing the buffer to be freed. The
  22  *                buffer pointer is nullified by this call.
  23  */
  24 void vsf_secbuf_free(char** p_ptr);
  25
  26 #endif /* VSF_SECBUF_H */
  27