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9pfs: introduce v9fs_path_sprintf() helper

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This helper is similar to v9fs_string_sprintf(), but it includes the
terminating NUL character in the size field.

This is to avoid doing v9fs_string_sprintf((V9fsString *) &path) and
then bumping the size.

Affected users are changed to use this new helper.

Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
This commit is contained in:
Greg Kurz 2016-09-16 08:56:15 +02:00
parent abdf008640
commit e3e83f2e21
4 changed files with 21 additions and 13 deletions
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1
hw/9pfs/9p.h
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@ -327,6 +327,7 @@ static inline uint8_t v9fs_request_cancelled(V9fsPDU *pdu)
extern void v9fs_reclaim_fd(V9fsPDU *pdu);
extern void v9fs_path_init(V9fsPath *path);
extern void v9fs_path_free(V9fsPath *path);
extern void v9fs_path_sprintf(V9fsPath *path, const char *fmt, ...);
extern void v9fs_path_copy(V9fsPath *lhs, V9fsPath *rhs);
extern int v9fs_name_to_path(V9fsState *s, V9fsPath *dirpath,
const char *name, V9fsPath *path);