OrionLibC
Barry Importing existing Orion LibC 03048a9 (2 years, 2 months ago)diff --git a/unistd/read.c b/unistd/read.c new file mode 100644 index 0000000..f4d2d75 --- /dev/null +++ b/unistd/read.c @@ -0,0 +1,16 @@ +#include <stddef.h> +#include <sys/syscall.h> +#include <errno.h> + +/* Read from a file */ +int +read(int fd, void *buf, size_t count) +{ + int ret; + asm volatile("int $0x80" : "=a" (ret) : "0" (SYSCALL_READ), + "c" (3), "S" (&fd)); + if (ret >= 0) + return ret; + errno = -ret; + return -1; +}