diff options
Diffstat (limited to 'contrib/syslinux-4.02/com32/lib/sys/read.c')
-rw-r--r-- | contrib/syslinux-4.02/com32/lib/sys/read.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/contrib/syslinux-4.02/com32/lib/sys/read.c b/contrib/syslinux-4.02/com32/lib/sys/read.c new file mode 100644 index 0000000..e097ade --- /dev/null +++ b/contrib/syslinux-4.02/com32/lib/sys/read.c @@ -0,0 +1,51 @@ +/* ----------------------------------------------------------------------- * + * + * Copyright 2004-2008 H. Peter Anvin - All Rights Reserved + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom + * the Software is furnished to do so, subject to the following + * conditions: + * + * The above copyright notice and this permission notice shall + * be included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * ----------------------------------------------------------------------- */ + +/* + * read.c + * + * Reading from a file descriptor + */ + +#include <errno.h> +#include <string.h> +#include <com32.h> +#include <minmax.h> +#include <klibc/compiler.h> +#include "file.h" + +ssize_t read(int fd, void *buf, size_t count) +{ + struct file_info *fp = &__file_info[fd]; + + if (fd >= NFILES || !fp->iop) { + errno = EBADF; + return -1; + } + + return fp->iop->read(fp, buf, count); +} |