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/cstrpak.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 sys/libc/cstrpak.c (limited to 'sys/libc/cstrpak.c') diff --git a/sys/libc/cstrpak.c b/sys/libc/cstrpak.c new file mode 100644 index 00000000..6236aa0d --- /dev/null +++ b/sys/libc/cstrpak.c @@ -0,0 +1,35 @@ +/* Copyright(c) 1986 Association of Universities for Research in Astronomy Inc. +*/ + +#define import_spp +#define import_libc +#include + + +/* C_STRPAK -- Pack an SPP string (type XCHAR) into a C string in a user +** supplied buffer. Return a pointer to the output buffer. +** +** N.B.: This routine should be used in preference to STRPAK in C code +** since the output string is of type char*, rather than XCHAR*. +*/ +char * +c_strpak ( + XCHAR *sppstr, /* SPP string */ + char *cstr, /* C string */ + int maxch /* max chars out, incl EOS */ +) +{ + register XCHAR *ip = sppstr; + register char *op = cstr; + register int n = maxch-1; + + if (maxch) { + if (sizeof(XCHAR) != sizeof(char) || (char *)sppstr != cstr) { + while (--n >= 0 && (*op++ = *ip++) != EOS) + ; + cstr[maxch-1] = EOS; + } + } + + return (cstr); +} -- cgit