diff options
Diffstat (limited to 'man3/getentropy.3')
| -rw-r--r-- | man3/getentropy.3 | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/man3/getentropy.3 b/man3/getentropy.3 index 697f9375b7..b341284cb0 100644 --- a/man3/getentropy.3 +++ b/man3/getentropy.3 @@ -26,7 +26,7 @@ .SH NAME getentropy \- fill a buffer with random bytes .SH SYNOPSIS -.B #include <sys/random.h> +.B #include <unistd.h> .sp .BI "int getentropy(void *" buffer ", size_t " length ); .SH DESCRIPTION @@ -43,7 +43,7 @@ argument is 256. A successful call to .BR getentropy () -always returns the requested number of bytes of entropy. +always returns zero and provides the requested number of bytes of entropy. .SH RETURN VALUE On success, this function returns zero, On error, \-1 is returned, and @@ -90,6 +90,10 @@ a cancellation point, .BR getentropy () is not a cancellation point. +In earlier versions of glibc this function was avaible under the +.BR <sys/random.h> +header. + A call to .BR getentropy () may block if the system has just booted and the kernel has |