svn commit: r213056 - head/sbin/geom/class/eli

[Pawel Jakub Dawidek]

Author: pjd
Date: Thu Sep 23 10:50:17 2010
New Revision: 213056
URL: http://svn.freebsd.org/changeset/base/213056

Log:
  Simplify code a bit by using g_*() API from libgeom.
  
  MFC after:    1 week

Modified:
  head/sbin/geom/class/eli/geom_eli.c

Modified: head/sbin/geom/class/eli/geom_eli.c
==============================================================================
--- head/sbin/geom/class/eli/geom_eli.c Thu Sep 23 10:43:37 2010        
(r213055)
+++ head/sbin/geom/class/eli/geom_eli.c Thu Sep 23 10:50:17 2010        
(r213056)
@@ -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);
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