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ddb(9): New db_num_to_strbuf. 

Like db_num_to_str, but writes to caller-provided buffer instead of
returning pointer to static storage.
This commit is contained in:
riastradh 2022-08-30 22:37:03 +00:00
parent b672ca148d
commit 3566aefb0b
2 changed files with 17 additions and 9 deletions
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23
sys/ddb/db_lex.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: db_lex.c,v 1.26 2020/07/29 23:29:42 uwe Exp $ */
/* $NetBSD: db_lex.c,v 1.27 2022/08/30 22:37:03 riastradh Exp $ */
/*
* Mach Operating System
@ -34,7 +34,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: db_lex.c,v 1.26 2020/07/29 23:29:42 uwe Exp $");
__KERNEL_RCSID(0, "$NetBSD: db_lex.c,v 1.27 2022/08/30 22:37:03 riastradh Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -172,16 +172,23 @@ db_num_to_str(db_expr_t val)
*/
static char buf[25];
if (db_radix == 16)
snprintf(buf, sizeof(buf), "%" DDB_EXPR_FMT "x", val);
else if (db_radix == 8)
snprintf(buf, sizeof(buf), "%" DDB_EXPR_FMT "o", val);
else
snprintf(buf, sizeof(buf), "%" DDB_EXPR_FMT "u", val);
db_num_to_strbuf(val, buf, sizeof(buf));
return (buf);
}
void
db_num_to_strbuf(db_expr_t val, char *buf, size_t len)
{
if (db_radix == 16)
snprintf(buf, len, "%" DDB_EXPR_FMT "x", val);
else if (db_radix == 8)
snprintf(buf, len, "%" DDB_EXPR_FMT "o", val);
else
snprintf(buf, len, "%" DDB_EXPR_FMT "u", val);
}
void
db_flush_lex(void)
{

3
sys/ddb/db_lex.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: db_lex.h,v 1.16 2020/07/29 23:29:42 uwe Exp $ */
/* $NetBSD: db_lex.h,v 1.17 2022/08/30 22:37:03 riastradh Exp $ */
/*
* Mach Operating System
@ -34,6 +34,7 @@
*/
void db_flush_lex(void);
char *db_num_to_str(db_expr_t);
void db_num_to_strbuf(db_expr_t, char *, size_t);
int db_read_line(void);
void db_set_line(const char *, const char *);
void db_get_line(const char **, const char **);