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#include <u.h>
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#include <libc.h>
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#include <bin.h>
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#include <httpd.h>
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/*
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 * read in some header lines, either one or all of them.
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 * copy results into header log buffer.
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 */
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int
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hgethead(HConnect *c, int many)
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{
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	Hio *hin;
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	char *s, *p, *pp;
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	int n;
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	hin = &c->hin;
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	for(;;){
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		s = (char*)hin->pos;
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		pp = s;
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		while(p = memchr(pp, '\n', (char*)hin->stop - pp)){
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			if(!many || p == pp || (p == pp + 1 && *pp == '\r')){
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				pp = p + 1;
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				break;
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			}
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			pp = p + 1;
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		}
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		hin->pos = (uchar*)pp;
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		n = pp - s;
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		if(c->hstop + n > &c->header[HBufSize])
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			return -1;
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		memmove(c->hstop, s, n);
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		c->hstop += n;
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		*c->hstop = '\0';
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		if(p != nil)
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			return 0;
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		if(hreadbuf(hin, hin->pos) == nil || hin->state == Hend)
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			return -1;
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	}
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}