From fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4 Mon Sep 17 00:00:00 2001 From: Joseph Hunkeler Date: Wed, 8 Jul 2015 20:46:52 -0400 Subject: Initial commit --- sys/libc/cungetl.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 sys/libc/cungetl.c (limited to 'sys/libc/cungetl.c') diff --git a/sys/libc/cungetl.c b/sys/libc/cungetl.c new file mode 100644 index 00000000..5e0fa40c --- /dev/null +++ b/sys/libc/cungetl.c @@ -0,0 +1,31 @@ +/* Copyright(c) 1986 Association of Universities for Research in Astronomy Inc. +*/ + +#define import_spp +#define import_libc +#define import_xnames +#include + +#define MAX_STRLEN SZ_COMMAND + + +/* C_UNGETLINE -- Push a string back into the input stream. Pushback is last +** in first out, i.e., the last string pushed back is the first one read by +** GETC. Strings (and single characters) may be pushed back until the FIO +** pushback buffer overflows. +*/ +int +c_ungetline ( + XINT fd, /* file */ + char *str /* string to be pushed back */ +) +{ + XINT x_fd = fd; + XCHAR spp_str[MAX_STRLEN]; + + + iferr (UNGETLINE (&x_fd, c_strupk (str, spp_str, MAX_STRLEN))) + return (ERR); + else + return (OK); +} -- cgit