mirror/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-01-15 19:42:28 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

Fixed safe_strcpy_truncated() to get rid of compiler warnings.

Browse source
This commit is contained in:
Monty 2024-10-08 21:01:30 +03:00
parent 8b057fee62
commit 864847d1cc
1 changed files with 12 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

17
include/m_string.h
View file

@ -285,12 +285,19 @@ static inline void safe_strcpy(char *dst, size_t dst_size, const char *src)
static inline int safe_strcpy_truncated(char *dst, size_t dst_size,
const char *src)
{
DBUG_ASSERT(dst_size > 0);
strncpy(dst, src, dst_size);
if (dst[dst_size - 1])
DBUG_ASSERT(dst_size > 0);
if (dst_size == 0)
return 1;
/*
We do not want to use strncpy() as we do not want to rely on
strncpy() filling the unused dst with 0.
We cannot use strmake() here as it in debug mode fills the buffers
with 'Z'.
*/
if (strnmov(dst, src, dst_size) == dst+dst_size)
{
dst[dst_size - 1]= 0;
dst[dst_size-1]= 0;
return 1;
}
return 0;
@ -306,7 +313,7 @@ static inline int safe_strcpy_truncated(char *dst, size_t dst_size,
static inline int safe_strcat(char *dst, size_t dst_size, const char *src)
{
size_t init_len= strlen(dst);
if (unlikely(init_len > dst_size))
if (unlikely(init_len >= dst_size))
return 1;
return safe_strcpy_truncated(dst + init_len, dst_size - init_len, src);
}