From 9ce6a82d5da13da50c33f3215399e9062026dc7b Mon Sep 17 00:00:00 2001 From: davidxu <davidxu@FreeBSD.org> Date: Tue, 22 Jan 2013 03:23:14 +0000 Subject: Make "-D skip" option work with FIFO by opening file in non-blocking mode. Reviewed by: jhb Tested by: delphij --- gnu/usr.bin/grep/grep.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'gnu') diff --git a/gnu/usr.bin/grep/grep.c b/gnu/usr.bin/grep/grep.c index 1684a82..0cab4a1 100644 --- a/gnu/usr.bin/grep/grep.c +++ b/gnu/usr.bin/grep/grep.c @@ -304,7 +304,7 @@ reset (int fd, char const *file, struct stats *stats) if (directories == SKIP_DIRECTORIES && S_ISDIR (stats->stat.st_mode)) return 0; #ifndef DJGPP - if (devices == SKIP_DEVICES && (S_ISCHR(stats->stat.st_mode) || S_ISBLK(stats->stat.st_mode) || S_ISSOCK(stats->stat.st_mode))) + if (devices == SKIP_DEVICES && (S_ISCHR(stats->stat.st_mode) || S_ISBLK(stats->stat.st_mode) || S_ISSOCK(stats->stat.st_mode) || S_ISFIFO(stats->stat.st_mode))) #else if (devices == SKIP_DEVICES && (S_ISCHR(stats->stat.st_mode) || S_ISBLK(stats->stat.st_mode))) #endif @@ -942,6 +942,7 @@ grepfile (char const *file, struct stats *stats) int desc; int count; int status; + int flags; if (! file) { @@ -950,7 +951,7 @@ grepfile (char const *file, struct stats *stats) } else { - while ((desc = open (file, O_RDONLY)) < 0 && errno == EINTR) + while ((desc = open (file, O_RDONLY | O_NONBLOCK)) < 0 && errno == EINTR) continue; if (desc < 0) @@ -990,6 +991,9 @@ grepfile (char const *file, struct stats *stats) return 1; } + flags = fcntl(desc, F_GETFL); + flags &= ~O_NONBLOCK; + fcntl(desc, F_SETFL, flags); filename = file; } -- cgit v1.1