From mboxrd@z Thu Jan 1 00:00:00 1970 From: dexen deVries Subject: [PATCH 3/8] dumpseg: support opening mounted filesystem by directory pathname Date: Thu, 3 Mar 2011 13:47:47 +0100 Message-ID: <1299156472-4707-3-git-send-email-dexen.devries@gmail.com> References: <20110302.232110.169818198.ryusuke@osrg.net> <1299156472-4707-1-git-send-email-dexen.devries@gmail.com> Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:from:to:subject:date:message-id:x-mailer :in-reply-to:references:x-face; bh=cNeZLlEp/2pPOeaapSFtBzaHmPxKV4PCdXBmGwf9YNA=; b=D7LFOULJHAHJDhGFuR3N1fWHezzFNgxlKM5DJkvtuI6W4VYYBAGzflbyQrlHBAhGXg j987P0zoFotfFEA46dTa/rZwJvy+hHDoWDoRPlZui1V67gB6yiQ8V4+ShyQ5bKBHfqNU KT3gnump2EQt6c81uo8iQgwsCyHn9i054Q9A4= In-Reply-To: <1299156472-4707-1-git-send-email-dexen.devries-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> Sender: linux-nilfs-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-nilfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org --- bin/dumpseg.c | 35 +++++++++++++++++++++++++++++------ 1 files changed, 29 insertions(+), 6 deletions(-) diff --git a/bin/dumpseg.c b/bin/dumpseg.c index 0ee6aee..1910296 100644 --- a/bin/dumpseg.c +++ b/bin/dumpseg.c @@ -28,6 +28,14 @@ #include "config.h" #endif /* HAVE_CONFIG_H */ +#if HAVE_SYS_TYPES_H +#include +#endif /* HAVE_SYS_TYPES_H */ + +#if HAVE_SYS_STAT_H +#include +#endif /* HAVE_SYS_STAT_H */ + #include #if HAVE_STDLIB_H @@ -169,17 +177,19 @@ static void dumpseg_print_segment(struct nilfs *nilfs, int main(int argc, char *argv[]) { struct nilfs *nilfs; + struct stat statbuf; __u64 segnum; - char *dev, *endptr, *progname; + char *dev, *dir, *pathname, *endptr, *progname; void *seg; ssize_t segsize; - int c, i, status; + int c, i, status, ret; unsigned long val; #ifdef _GNU_SOURCE int option_index; #endif /* _GNU_SOURCE */ opterr = 0; + dev = dir = NULL; if ((progname = strrchr(argv[0], '/')) == NULL) progname = argv[0]; @@ -214,14 +224,27 @@ int main(int argc, char *argv[]) } else { val = strtoul(argv[optind], &endptr, DUMPSEG_BASE); if (*endptr == '\0') - dev = NULL; + pathname = NULL; else - dev = argv[optind++]; + pathname = argv[optind++]; } - nilfs = nilfs_open(dev, NULL, NILFS_OPEN_RAW); + + if (pathname) { + ret = stat(pathname, &statbuf); + if (ret == -1) { + fprintf(stderr, "%s: cannot open %s: %s\n", + progname, pathname, strerror(errno)); + exit(EXIT_FAILURE); + } + if (S_ISDIR(statbuf.st_mode)) + dir = pathname; + else + dev = pathname; + } + nilfs = nilfs_open(dev, dir, NILFS_OPEN_RAW); if (nilfs == NULL) { - fprintf(stderr, "%s: %s: cannot open NILFS\n", progname, dev); + fprintf(stderr, "%s: %s: cannot open NILFS\n", progname, pathname); exit(1); } -- 1.7.4.1 -- To unsubscribe from this list: send the line "unsubscribe linux-nilfs" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html