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Simplify code a bit by using g_*() API from libgeom.

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MFC after:	1 week
This commit is contained in:
Pawel Jakub Dawidek 2010-09-23 10:50:17 +00:00
parent 5e6dce4bf0
commit 5cd61a1fb7
1 changed files with 10 additions and 19 deletions
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29
sbin/geom/class/eli/geom_eli.c
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@ -1268,7 +1268,7 @@ eli_resize(struct gctl_req *req)
struct g_eli_metadata md;
const char *prov;
unsigned char *sector;
unsigned secsize;
ssize_t secsize;
off_t mediasize, oldsize;
int nargs, provfd;
@ -1283,21 +1283,15 @@ eli_resize(struct gctl_req *req)
sector = NULL;
secsize = 0;
provfd = open(prov, O_RDWR);
if (provfd == -1 && errno == ENOENT && prov[0] != '/') {
char devprov[MAXPATHLEN];
snprintf(devprov, sizeof(devprov), "%s%s", _PATH_DEV, prov);
provfd = open(devprov, O_RDWR);
}
provfd = g_open(prov, 1);
if (provfd == -1) {
gctl_error(req, "Cannot open %s: %s.", prov, strerror(errno));
goto out;
}
mediasize = g_get_mediasize(prov);
secsize = g_get_sectorsize(prov);
if (mediasize == 0 || secsize == 0) {
mediasize = g_mediasize(provfd);
secsize = g_sectorsize(provfd);
if (mediasize == -1 || secsize == -1) {
gctl_error(req, "Cannot get information about %s: %s.", prov,
strerror(errno));
goto out;
@ -1316,8 +1310,7 @@ eli_resize(struct gctl_req *req)
}
/* Read metadata from the 'oldsize' offset. */
if (pread(provfd, sector, secsize, oldsize - secsize) !=
(ssize_t)secsize) {
if (pread(provfd, sector, secsize, oldsize - secsize) != secsize) {
gctl_error(req, "Cannot read old metadata: %s.",
strerror(errno));
goto out;
@ -1344,23 +1337,21 @@ eli_resize(struct gctl_req *req)
*/
md.md_provsize = mediasize;
eli_metadata_encode(&md, sector);
if (pwrite(provfd, sector, secsize, mediasize - secsize) !=
(ssize_t)secsize) {
if (pwrite(provfd, sector, secsize, mediasize - secsize) != secsize) {
gctl_error(req, "Cannot write metadata: %s.", strerror(errno));
goto out;
}
/* Now trash the old metadata. */
arc4rand(sector, secsize);
if (pwrite(provfd, sector, secsize, oldsize - secsize) !=
(ssize_t)secsize) {
if (pwrite(provfd, sector, secsize, oldsize - secsize) != secsize) {
gctl_error(req, "Failed to clobber old metadata: %s.",
strerror(errno));
goto out;
}
out:
if (provfd > 0)
close(provfd);
if (provfd >= 0)
(void)g_close(provfd);
if (sector != NULL) {
bzero(sector, secsize);
free(sector);