[PATCH] lscp: support opening mounted filesystem by directory pathname

[dexen deVries <dexen.devries-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

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I wonder if submission as an attachment will work alright.

-- 
dexen deVries

[[[↓][→]]]

> how does a C compiler get to be that big? what is all that code doing?

iterators, string objects, and a full set of C macros that ensure
boundary conditions and improve interfaces.

ron minnich, in response to Charles Forsyth

http://9fans.net/archive/2011/02/90

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From d680318225635932b633210a97d39dac09fe44ec Mon Sep 17 00:00:00 2001
From: dexen deVries <dexen.devries-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Date: Wed, 2 Mar 2011 10:53:11 +0100
Subject: [PATCH] lscp: support opening mounted filesystem by directory pathname

---
 bin/lscp.c |   23 ++++++++++++++++++-----
 1 files changed, 18 insertions(+), 5 deletions(-)

diff --git a/bin/lscp.c b/bin/lscp.c
index df9a0af..44e9dcb 100644
--- a/bin/lscp.c
+++ b/bin/lscp.c
@@ -28,6 +28,14 @@
 #include "config.h"
 #endif	/* HAVE_CONFIG_H */
 
+#if HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif	/* HAVE_SYS_TYPES_H */
+
+#if HAVE_SYS_STAT_H
+#include <sys/stat.h>
+#endif	/* HAVE_SYS_STAT_H */
+
 #include <stdio.h>
 
 #if HAVE_STDLIB_H
@@ -324,7 +332,8 @@ int main(int argc, char *argv[])
 {
 	struct nilfs *nilfs;
 	struct nilfs_cpstat cpstat;
-	char *dev, *progname;
+	struct stat statbuf;
+	char *pathname, *progname;
 	int c, mode, rvs, status, ret;
 #ifdef _GNU_SOURCE
 	int option_index;
@@ -384,15 +393,19 @@ int main(int argc, char *argv[])
 		fprintf(stderr, "%s: too many arguments\n", progname);
 		exit(1);
 	} else if (optind == argc - 1) {
-		dev = argv[optind++];
+		pathname = argv[optind++];
 	} else {
-		dev = NULL;
+		pathname = NULL;
 	}
 
-	nilfs = nilfs_open(dev, NULL, NILFS_OPEN_RDONLY);
+	stat(pathname, &statbuf);
+	if (S_ISDIR(statbuf.st_mode))
+		nilfs = nilfs_open(NULL, pathname, NILFS_OPEN_RDONLY);
+	else
+		nilfs = nilfs_open(pathname, NULL, NILFS_OPEN_RDONLY);
 	if (nilfs == NULL) {
 		fprintf(stderr, "%s: %s: cannot open NILFS\n",
-			progname, dev);
+			progname, pathname);
 		exit(EXIT_FAILURE);
 	}
 
-- 
1.7.4.1