X-Git-Url: https://git.decadent.org.uk/gitweb/?p=nfs-utils.git;a=blobdiff_plain;f=support%2Fnfs%2Ffstab.c;h=ba7e580eb08f97978bee156a9e81ecc6dc4b0120;hp=23ea927cc8b80624463345679a18fe5bda16db6c;hb=ae5ec51e0ddc99dc5552e51bd5c095084dbb61aa;hpb=3eb4c9aaa218f2af4bbea2073f02e419c50d3d3d

diff --git a/support/nfs/fstab.c b/support/nfs/fstab.c
index 23ea927..ba7e580 100644
--- a/support/nfs/fstab.c
+++ b/support/nfs/fstab.c
@@ -80,8 +80,11 @@ mtab_is_writable() {
 
 struct mntentchn mounttable;
 static int got_mtab = 0;
+struct mntentchn fstab;
+static int got_fstab = 0;
 
 static void read_mounttable(void);
+static void read_fstab(void);
 
 static struct mntentchn *
 mtab_head() {
@@ -90,6 +93,14 @@ mtab_head() {
 	return &mounttable;
 }
 
+static struct mntentchn *
+fstab_head()
+{
+	if (!got_fstab)
+		read_fstab();
+	return &fstab;
+}
+
 static void
 my_free(const void *s) {
 	if (s)
@@ -167,6 +178,27 @@ read_mounttable() {
         read_mntentchn(mfp, fnam, mc);
 }
 
+static void
+read_fstab()
+{
+	mntFILE *mfp = NULL;
+	const char *fnam;
+	struct mntentchn *mc = &fstab;
+
+	got_fstab = 1;
+	mc->nxt = mc->prev = NULL;
+
+	fnam = _PATH_FSTAB;
+	mfp = nfs_setmntent (fnam, "r");
+	if (mfp == NULL || mfp->mntent_fp == NULL) {
+		int errsv = errno;
+		error(_("warning: can't open %s: %s"),
+			_PATH_FSTAB, strerror (errsv));
+		return;
+	}
+	read_mntentchn(mfp, fnam, mc);
+}
+
 /*
  * Given the directory name NAME, and the place MCPREV we found it last time,
  * try to find more occurrences.
@@ -201,6 +233,32 @@ getmntdevbackward (const char *name, struct mntentchn *mcprev) {
 	return NULL;
 }
 
+/* Find the dir FILE in fstab.  */
+struct mntentchn *
+getfsfile (const char *file)
+{
+	struct mntentchn *mc, *mc0;
+
+	mc0 = fstab_head();
+	for (mc = mc0->nxt; mc && mc != mc0; mc = mc->nxt)
+		if (streq(mc->m.mnt_dir, file))
+			return mc;
+	return NULL;
+}
+
+/* Find the device SPEC in fstab.  */
+struct mntentchn *
+getfsspec (const char *spec)
+{
+	struct mntentchn *mc, *mc0;
+
+	mc0 = fstab_head();
+	for (mc = mc0->nxt; mc && mc != mc0; mc = mc->nxt)
+		if (streq(mc->m.mnt_fsname, spec))
+			return mc;
+	return NULL;
+}
+
 /* Updating mtab ----------------------------------------------*/
 
 /* Flag for already existing lock file. */