sys-fs/xfsprogs: Added musl fix.

Package-Manager: Portage-2.3.6, Repoman-2.3.3

2 files changed, 118 insertions, 0 deletions

diff --git a/sys-fs/xfsprogs/files/xfsprogs-4.12.0-fix_musl.patch b/sys-fs/xfsprogs/files/xfsprogs-4.12.0-fix_musl.patch
new file mode 100644
index 000000000000..efc57e4f693d
--- /dev/null
+++ b/sys-fs/xfsprogs/files/xfsprogs-4.12.0-fix_musl.patch
@@ -0,0 +1,117 @@
+From 21253610f9ef87db8e2a75b863b7fcfbd0cdb421 Mon Sep 17 00:00:00 2001
+From: "Darrick J. Wong" <darrick.wong@oracle.com>
+Date: Tue, 25 Jul 2017 13:45:01 -0500
+Subject: [PATCH] In patch 4944defad4 ("xfs_db: redirect printfs when
+ metadumping to stdout"), we solved the problem of xfs_db printfs ending up in
+ the metadump stream by reassigning stdout for the duration of a stdout
+ metadump.  Unfortunately, musl doesn't allow stdout to be reassigned (in
+ their view "extern FILE *stdout" means "extern FILE * const stdout"), so we
+ abandon the old approach in favor of playing games with dup() to switch the
+ raw file descriptors.
+
+While we're at it, fix a regression where an unconverted outf test
+allows progress info to end up in the metadump stream.
+
+Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
+---
+ db/metadump.c | 47 ++++++++++++++++++++++++++++++++++++-----------
+ 1 file changed, 36 insertions(+), 11 deletions(-)
+
+diff --git a/db/metadump.c b/db/metadump.c
+index 96641e0..4e2f648 100644
+--- a/db/metadump.c
++++ b/db/metadump.c
+@@ -78,6 +78,7 @@ static int		obfuscate = 1;
+ static int		zero_stale_data = 1;
+ static int		show_warnings = 0;
+ static int		progress_since_warning = 0;
++static bool		stdout_metadump;
+ 
+ void
+ metadump_init(void)
+@@ -137,7 +138,7 @@ print_progress(const char *fmt, ...)
+ 	va_end(ap);
+ 	buf[sizeof(buf)-1] = '\0';
+ 
+-	f = (outf == stdout) ? stderr : stdout;
++	f = stdout_metadump ? stderr : stdout;
+ 	fprintf(f, "\r%-59s", buf);
+ 	fflush(f);
+ 	progress_since_warning = 1;
+@@ -2750,7 +2751,8 @@ metadump_f(
+ 	xfs_agnumber_t	agno;
+ 	int		c;
+ 	int		start_iocur_sp;
+-	bool		stdout_metadump = false;
++	int		outfd = -1;
++	int		ret;
+ 	char		*p;
+ 
+ 	exitcode = 1;
+@@ -2870,16 +2872,35 @@ metadump_f(
+ 		 * metadump operation so that dbprintf and other messages
+ 		 * are sent to the console instead of polluting the
+ 		 * metadump stream.
++		 *
++		 * We get to do this the hard way because musl doesn't
++		 * allow reassignment of stdout.
+ 		 */
+-		outf = stdout;
+-		stdout = stderr;
++		fflush(stdout);
++		outfd = dup(STDOUT_FILENO);
++		if (outfd < 0) {
++			perror("opening dump stream");
++			goto out;
++		}
++		ret = dup2(STDERR_FILENO, STDOUT_FILENO);
++		if (ret < 0) {
++			perror("redirecting stdout");
++			close(outfd);
++			goto out;
++		}
++		outf = fdopen(outfd, "a");
++		if (outf == NULL) {
++			fprintf(stderr, "cannot create dump stream\n");
++			dup2(outfd, 1);
++			close(outfd);
++			goto out;
++		}
+ 		stdout_metadump = true;
+ 	} else {
+ 		outf = fopen(argv[optind], "wb");
+ 		if (outf == NULL) {
+ 			print_warning("cannot create dump file");
+-			free(metablock);
+-			return 0;
++			goto out;
+ 		}
+ 	}
+ 
+@@ -2907,15 +2928,19 @@ metadump_f(
+ 	if (progress_since_warning)
+ 		fputc('\n', stdout_metadump ? stderr : stdout);
+ 
+-	if (stdout_metadump)
+-		stdout = outf;
+-	else
+-		fclose(outf);
++	if (stdout_metadump) {
++		fflush(outf);
++		fflush(stdout);
++		ret = dup2(outfd, STDOUT_FILENO);
++		if (ret < 0)
++			perror("un-redirecting stdout");
++	}
++	fclose(outf);
+ 
+ 	/* cleanup iocur stack */
+ 	while (iocur_sp > start_iocur_sp)
+ 		pop_cur();
+-
++out:
+ 	free(metablock);
+ 
+ 	return 0;
+-- 
+2.13.3
diff --git a/sys-fs/xfsprogs/xfsprogs-4.12.0.ebuild b/sys-fs/xfsprogs/xfsprogs-4.12.0.ebuild
index 0cfd1dd972a3..4736e0b82b64 100644
--- a/sys-fs/xfsprogs/xfsprogs-4.12.0.ebuild
+++ b/sys-fs/xfsprogs/xfsprogs-4.12.0.ebuild
@@ -31,6 +31,7 @@ PATCHES=(
 	"${FILESDIR}"/${PN}-4.12.0-sharedlibs.patch
 	"${FILESDIR}"/${PN}-4.7.0-libxcmd-link.patch
 	"${FILESDIR}"/${PN}-4.9.0-underlinking.patch
+	"${FILESDIR}"/${PN}-4.12.0-fix_musl.patch
 )
 
 pkg_setup() {