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cutils: Provide strchrnul

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strchrnul is a GNU extension and thus unavailable on a number of targets.
In the review for a commit removing strchrnul from 9p, I was asked to
create a qemu_strchrnul helper to factor out this functionality.
Do so, and use it in a number of other places in the code base that inlined
the replacement pattern in a place where strchrnul could be used.

Signed-off-by: Keno Fischer <keno@juliacomputing.com>
Acked-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Greg Kurz <groug@kaod.org>
This commit is contained in:
Keno Fischer 2018-06-29 12:32:10 +02:00 • committed by Greg Kurz
parent 609ef9f451
commit 5c99fa375d
8 changed files with 51 additions and 20 deletions
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8
include/qemu/cutils.h
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@ -122,6 +122,14 @@ int qemu_strnlen(const char *s, int max_len);
* Returns: the pointer originally in @input.
*/
char *qemu_strsep(char **input, const char *delim);
#ifdef HAVE_STRCHRNUL
static inline const char *qemu_strchrnul(const char *s, int c)
{
return strchrnul(s, c);
}
#else
const char *qemu_strchrnul(const char *s, int c);
#endif
time_t mktimegm(struct tm *tm);
int qemu_fdatasync(int fd);
int fcntl_setfl(int fd, int flag);