[PATCH] tools: include: add proper strscpy() declaration

[Lucas Poupeau]

Remove the macro hack and add a proper implementation in tools/lib/string.c.
This avoids unsafe strcpy usage when strscpy is expected and fixes
potential compilation warnings regarding str_error_r.

Fixes: 9e3d665 ("memblock test: fix implicit declaration of function 'strscpy'")
Suggested-by: Maxwell Doose <m32285159@xxxxxxxxx>
Reviewed-by: Wei Yang <richard.weiyang@xxxxxxxxx>
Signed-off-by: Lucas Poupeau <lucasp.linux@xxxxxxxxx>
---
 tools/include/linux/string.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/include/linux/string.h b/tools/include/linux/string.h
index 51ad3cf4fa82..d6e53109e786 100644
--- a/tools/include/linux/string.h
+++ b/tools/include/linux/string.h
@@ -12,7 +12,7 @@ void argv_free(char **argv);
 
 int strtobool(const char *s, bool *res);
 
-#define strscpy strcpy
+ssize_t strscpy(char *dest, const char *src, size_t count);
 
 /*
  * glibc based builds needs the extern while uClibc doesn't.
-- 
2.54.0