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Diffstat (limited to 'src/libbio/bprint.c')
-rw-r--r-- | src/libbio/bprint.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/src/libbio/bprint.c b/src/libbio/bprint.c new file mode 100644 index 000000000..2e3867ae6 --- /dev/null +++ b/src/libbio/bprint.c @@ -0,0 +1,54 @@ +/* +http://code.google.com/p/inferno-os/source/browse/libbio/bprint.c + + Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved. + Revisions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com). 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. +*/ + +#include <u.h> +#include <libc.h> +#include <bio.h> + +int +Bprint(Biobuf *bp, char *fmt, ...) +{ + va_list ap; + char *ip, *ep, *out; + int n; + + ep = (char*)bp->ebuf; + ip = ep + bp->ocount; + va_start(ap, fmt); + out = vseprint(ip, ep, fmt, ap); + va_end(ap); + if(out == nil || out >= ep-5) { + Bflush(bp); + ip = ep + bp->ocount; + va_start(ap, fmt); + out = vseprint(ip, ep, fmt, ap); + va_end(ap); + if(out >= ep-5) + return Beof; + } + n = out-ip; + bp->ocount += n; + return n; +} |