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Diffstat (limited to 'src/lib9/fmt/vsnprint.c')
-rw-r--r-- | src/lib9/fmt/vsnprint.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/src/lib9/fmt/vsnprint.c b/src/lib9/fmt/vsnprint.c new file mode 100644 index 000000000..33d6bba4d --- /dev/null +++ b/src/lib9/fmt/vsnprint.c @@ -0,0 +1,43 @@ +/* + * The authors of this software are Rob Pike and Ken Thompson, + * with contributions from Mike Burrows and Sean Dorward. + * + * Copyright (c) 2002-2006 by Lucent Technologies. + * Portions Copyright (c) 2004 Google Inc. + * + * Permission to use, copy, modify, and distribute this software for any + * purpose without fee is hereby granted, provided that this entire notice + * is included in all copies of any software which is or includes a copy + * or modification of this software and in all copies of the supporting + * documentation for such software. + * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED + * WARRANTY. IN PARTICULAR, NEITHER THE AUTHORS NOR LUCENT TECHNOLOGIES + * NOR GOOGLE INC MAKE ANY REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING + * THE MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE. + */ + +#include <u.h> +#include <libc.h> +#include "fmtdef.h" + +int +vsnprint(char *buf, int len, char *fmt, va_list args) +{ + Fmt f; + + if(len <= 0) + return -1; + f.runes = 0; + f.start = buf; + f.to = buf; + f.stop = buf + len - 1; + f.flush = 0; + f.farg = nil; + f.nfmt = 0; + VA_COPY(f.args,args); + fmtlocaleinit(&f, nil, nil, nil); + dofmt(&f, fmt); + VA_END(f.args); + *(char*)f.to = '\0'; + return (char*)f.to - buf; +} |