traceroute: fix help text to not show -6 when traceroute6 is off

[oweals/busybox.git] / libbb / read.c

diff --git a/libbb/read.c b/libbb/read.c
index b58982b325646d89c032a6b4e09aad34f37942b1..06ce29718e9e5bb24219a01be9a67a2116074037 100644 (file)
--- a/libbb/read.c
+++ b/libbb/read.c
@@ -39,18 +39,18 @@ ssize_t FAST_FUNC safe_read(int fd, void *buf, size_t count)
  * *** BIG SURPRISE! It stays even after child exits! ***
  *
  * This is a design bug in UNIX API.
- *      fcntl(0, F_SETFL, fcntl(0, F_GETFL, 0) | O_NONBLOCK);
+ *      fcntl(0, F_SETFL, fcntl(0, F_GETFL) | O_NONBLOCK);
  * will set nonblocking mode not only on _your_ stdin, but
  * also on stdin of your parent, etc.
  *
  * In general,
  *      fd2 = dup(fd1);
- *      fcntl(fd2, F_SETFL, fcntl(fd2, F_GETFL, 0) | O_NONBLOCK);
+ *      fcntl(fd2, F_SETFL, fcntl(fd2, F_GETFL) | O_NONBLOCK);
  * sets both fd1 and fd2 to O_NONBLOCK. This includes cases
  * where duping is done implicitly by fork() etc.
  *
  * We need
- *      fcntl(fd2, F_SETFD, fcntl(fd2, F_GETFD, 0) | O_NONBLOCK);
+ *      fcntl(fd2, F_SETFD, fcntl(fd2, F_GETFD) | O_NONBLOCK);
  * (note SETFD, not SETFL!) but such thing doesn't exist.
  *
  * Alternatively, we need nonblocking_read(fd, ...) which doesn't
@@ -336,7 +336,7 @@ int FAST_FUNC open_zipped(const char *fname)
                 || (ENABLE_FEATURE_SEAMLESS_BZ2 && strcmp(sfx, ".bz2") == 0)
                ) {
                        /* .gz and .bz2 both have 2-byte signature, and their
-                        * unpack_XXX_stream want this header skipped. */
+                        * unpack_XXX_stream wants this header skipped. */
                        xread(fd, &magic, 2);
 #if ENABLE_FEATURE_SEAMLESS_GZ
 #if BB_MMU