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authorRich Felker <dalias@aerifal.cx>2012-05-06 09:03:19 -0400
committerRich Felker <dalias@aerifal.cx>2012-05-06 09:03:19 -0400
commit106e75f7121b009c069733dcb8a70fe5e4380ab0 (patch)
tree0dad01735b2dd4e08e8b87acfbd34c029e0f30a2 /src/misc/isastream.c
parent98c9af500125df41fdb46d7e384b00982d72493a (diff)
downloadmusl-106e75f7121b009c069733dcb8a70fe5e4380ab0.tar.gz
add isastream (obsolete STREAMS junk)
apparently some packages see stropts.h and want to be able to use this. the implementation checks that the file descriptor is valid by using fcntl/F_GETFD so it can report an error if not (as specified).
Diffstat (limited to 'src/misc/isastream.c')
-rw-r--r--src/misc/isastream.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/misc/isastream.c b/src/misc/isastream.c
new file mode 100644
index 00000000..4dafdb08
--- /dev/null
+++ b/src/misc/isastream.c
@@ -0,0 +1,7 @@
+#include <stropts.h>
+#include <fcntl.h>
+
+int isastream(int fd)
+{
+ return fcntl(fd, F_GETFD) < 0 ? -1 : 0;
+}