diff options
Diffstat (limited to 'sys/boot/common/loader.8')
| -rw-r--r-- | sys/boot/common/loader.8 | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/sys/boot/common/loader.8 b/sys/boot/common/loader.8 index 1d70aca..85c214f 100644 --- a/sys/boot/common/loader.8 +++ b/sys/boot/common/loader.8 @@ -642,9 +642,19 @@ Reads a single character from a file. .It Ic fload Pq Ar fd -- Process file .Em fd . -.It Ic fopen Pq Ar addr len -- fd +.It Ic fopen Pq Ar addr len mode Li -- Ar fd Open a file. -Returns a file descriptor, or -1 in case of failure. +Returns a file descriptor, or \-1 in case of failure. The +.Ar mode +parameter selects whether the file is to be opened for read access, write +access, or both. +The constants +.Dv O_RDONLY , O_WRONLY , +and +.Dv O_RDWR +are defined in +.Pa /boot/support.4th , +indicating read only, write only, and read-write access, respectively. .It Xo .Ic fread .Pq Ar fd addr len -- len' |
