diff options
| author | David Howells <dhowells@redhat.com> | 2017-07-04 17:25:02 +0100 |
|---|---|---|
| committer | Moyster <oysterized@gmail.com> | 2019-07-06 11:51:10 +0200 |
| commit | c3adf4ac17b9a3957e9feb108aedaca807389cee (patch) | |
| tree | 626fdb75333b45dcaaa0328745d8942122832f42 /include | |
| parent | 71f684be4b39cc2b0576db7da67195fdd958de0a (diff) | |
Provide a function to create a NUL-terminated string from unterminated data
commit f35157417215ec138c920320c746fdb3e04ef1d5 upstream.
Provide a function, kmemdup_nul(), that will create a NUL-terminated string
from an unterminated character array where the length is known in advance.
This is better than kstrndup() in situations where we already know the
string length as the strnlen() in kstrndup() is superfluous.
Change-Id: I52f8594090d324c4aa9530c0ad9d287ac43ac0fc
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/string.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/string.h b/include/linux/string.h index 5aab1f795..acad4a055 100644 --- a/include/linux/string.h +++ b/include/linux/string.h @@ -119,6 +119,7 @@ char *strreplace(char *s, char old, char new); extern char *kstrdup(const char *s, gfp_t gfp); extern char *kstrndup(const char *s, size_t len, gfp_t gfp); extern void *kmemdup(const void *src, size_t len, gfp_t gfp); +extern char *kmemdup_nul(const char *s, size_t len, gfp_t gfp); extern char **argv_split(gfp_t gfp, const char *str, int *argcp); extern void argv_free(char **argv); |