46 lines
1021 B
C
46 lines
1021 B
C
/*
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* This file is part of the UCB release of Plan 9. It is subject to the license
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* terms in the LICENSE file found in the top-level directory of this
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* distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
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* part of the UCB release of Plan 9, including this file, may be copied,
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* modified, propagated, or distributed except according to the terms contained
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* in the LICENSE file.
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*/
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#include <u.h>
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#include <libc.h>
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#include "fmtdef.h"
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/*
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* generic routine for flushing a formatting buffer
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* to a file descriptor
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*/
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int
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_fmtFdFlush(Fmt *f)
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{
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int n;
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n = (char*)f->to - (char*)f->start;
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if(n && jehanne_write((int)(uintptr_t)f->farg, f->start, n) != n)
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return 0;
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f->to = f->start;
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return 1;
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}
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int
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jehanne_vfprint(int fd, const char *fmt, va_list args)
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{
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Fmt f;
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char buf[256];
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int n;
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jehanne_fmtfdinit(&f, fd, buf, sizeof(buf));
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//f.args = args;
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va_copy(f.args,args);
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n = jehanne_dofmt(&f, fmt);
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va_end(f.args);
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if(n > 0 && _fmtFdFlush(&f) == 0)
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return -1;
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return n;
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}
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