23 lines
326 B
C
23 lines
326 B
C
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#include <u.h>
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#include <libc.h>
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int
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vsnprint(char *buf, int len, char *fmt, va_list args)
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{
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Fmt f;
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if(len <= 0)
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return -1;
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f.runes = 0;
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f.start = buf;
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f.to = buf;
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f.stop = buf + len - 1;
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f.flush = nil;
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f.farg = nil;
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f.nfmt = 0;
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f.args = args;
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dofmt(&f, fmt);
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*(char*)f.to = '\0';
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return (char*)f.to - buf;
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}
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