Forgot to check in xfdopen(). My bad.

Failure of fdopen() is most likely failure of malloc() for the FILE structure.

2 files changed, 10 insertions, 0 deletions

diff --git a/lib/lib.h b/lib/lib.h
index 98f4aadd..f66a70c7 100644
--- a/lib/lib.h
+++ b/lib/lib.h
@@ -106,6 +106,7 @@ int xcreate(char *path, int flags, int mode);
 int xopen(char *path, int flags);
 void xclose(int fd);
 int xdup(int fd);
+FILE *xfdopen(int fd, char *mode);
 FILE *xfopen(char *path, char *mode);
 size_t xread(int fd, void *buf, size_t len);
 void xreadall(int fd, void *buf, size_t len);
diff --git a/lib/xwrap.c b/lib/xwrap.c
index adf3e752..9f1dc996 100644
--- a/lib/xwrap.c
+++ b/lib/xwrap.c
@@ -172,6 +172,15 @@ int xdup(int fd)
   return fd;
 }
 
+FILE *xfdopen(int fd, char *mode)
+{
+  FILE *f = fdopen(fd, mode);
+
+  if (!f) perror_exit("xfdopen");
+
+  return f;
+}
+
 // Die unless we can open/create a file, returning FILE *.
 FILE *xfopen(char *path, char *mode)
 {