Date: Wed, 14 Dec 2016 21:26:43 +0000 (UTC) From: Brooks Davis <brooks@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r310092 - head/sbin/mount Message-ID: <201612142126.uBELQh2J023535@repo.freebsd.org>
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Author: brooks Date: Wed Dec 14 21:26:43 2016 New Revision: 310092 URL: https://svnweb.freebsd.org/changeset/base/310092 Log: Add a free_iovec() function to reset iovec's. The primary purpose is to call nmount() in a loop with new iovec's so free_iovec takes arguments by reference and resets their values. Reviewed by: cem MFC after: 1 week Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D8513 Modified: head/sbin/mount/getmntopts.c head/sbin/mount/mntopts.h Modified: head/sbin/mount/getmntopts.c ============================================================================== --- head/sbin/mount/getmntopts.c Wed Dec 14 21:14:43 2016 (r310091) +++ head/sbin/mount/getmntopts.c Wed Dec 14 21:26:43 2016 (r310092) @@ -181,3 +181,17 @@ build_iovec_argf(struct iovec **iov, int va_end(ap); build_iovec(iov, iovlen, name, strdup(val), (size_t)-1); } + +/* + * Free the iovec and reset to NULL with zero length. Useful for calling + * nmount in a loop. + */ +void +free_iovec(struct iovec **iov, int *iovlen) +{ + int i; + + for (i = 0; i < *iovlen; i++) + free((*iov)[i].iov_base); + free(*iov); +} Modified: head/sbin/mount/mntopts.h ============================================================================== --- head/sbin/mount/mntopts.h Wed Dec 14 21:14:43 2016 (r310091) +++ head/sbin/mount/mntopts.h Wed Dec 14 21:26:43 2016 (r310092) @@ -99,3 +99,4 @@ int checkpath(const char *, char resolve extern int getmnt_silent; void build_iovec(struct iovec **iov, int *iovlen, const char *name, void *val, size_t len); void build_iovec_argf(struct iovec **iov, int *iovlen, const char *name, const char *fmt, ...); +void free_iovec(struct iovec **iovec, int *iovlen);
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