Import sources from 2011-03-30 iso image - sys/include
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Taru Karttunen
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281
sys/include/httpd.h
Executable file
281
sys/include/httpd.h
Executable file
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#pragma lib "libhttpd.a"
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#pragma src "/sys/src/libhttpd"
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typedef struct HConnect HConnect;
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typedef struct HContent HContent;
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typedef struct HContents HContents;
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typedef struct HETag HETag;
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typedef struct HFields HFields;
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typedef struct Hio Hio;
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typedef struct Htmlesc Htmlesc;
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typedef struct HttpHead HttpHead;
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typedef struct HttpReq HttpReq;
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typedef struct HRange HRange;
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typedef struct HSPairs HSPairs;
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typedef struct Bin Bin;
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#pragma incomplete Bin
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enum
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{
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HMaxWord = 32*1024,
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HBufSize = 32*1024,
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/*
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* error messages
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*/
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HInternal = 0,
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HTempFail,
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HUnimp,
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HBadReq,
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HBadSearch,
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HNotFound,
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HUnauth,
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HSyntax,
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HNoSearch,
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HNoData,
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HExpectFail,
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HUnkVers,
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HBadCont,
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HOK,
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};
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/*
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* table of html character escape codes
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*/
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struct Htmlesc
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{
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char *name;
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Rune value;
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};
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struct HContent
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{
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HContent *next;
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char *generic;
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char *specific;
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float q; /* desirability of this kind of file */
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int mxb; /* max uchars until worthless */
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};
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struct HContents
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{
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HContent *type;
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HContent *encoding;
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};
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/*
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* generic http header with a list of tokens,
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* each with an optional list of parameters
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*/
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struct HFields
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{
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char *s;
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HSPairs *params;
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HFields *next;
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};
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/*
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* list of pairs a strings
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* used for tag=val pairs for a search or form submission,
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* and attribute=value pairs in headers.
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*/
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struct HSPairs
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{
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char *s;
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char *t;
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HSPairs *next;
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};
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/*
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* byte ranges within a file
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*/
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struct HRange
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{
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int suffix; /* is this a suffix request? */
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ulong start;
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ulong stop; /* ~0UL -> not given */
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HRange *next;
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};
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/*
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* list of http/1.1 entity tags
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*/
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struct HETag
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{
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char *etag;
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int weak;
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HETag *next;
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};
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/*
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* HTTP custom IO
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* supports chunked transfer encoding
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* and initialization of the input buffer from a string.
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*/
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enum
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{
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Hnone,
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Hread,
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Hend,
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Hwrite,
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Herr,
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Hsize = HBufSize
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};
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struct Hio {
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Hio *hh; /* next lower layer Hio, or nil if reads from fd */
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int fd; /* associated file descriptor */
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ulong seek; /* of start */
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uchar state; /* state of the file */
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uchar xferenc; /* chunked transfer encoding state */
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uchar *pos; /* current position in the buffer */
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uchar *stop; /* last character active in the buffer */
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uchar *start; /* start of data buffer */
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ulong bodylen; /* remaining length of message body */
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uchar buf[Hsize+32];
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};
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/*
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* request line
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*/
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struct HttpReq
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{
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char *meth;
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char *uri;
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char *urihost;
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char *search;
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int vermaj;
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int vermin;
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HSPairs *searchpairs;
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};
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/*
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* header lines
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*/
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struct HttpHead
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{
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int closeit; /* http1.1 close connection after this request? */
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uchar persist; /* http/1.1 requests a persistent connection */
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uchar expectcont; /* expect a 100-continue */
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uchar expectother; /* expect anything else; should reject with ExpectFail */
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ulong contlen; /* if != ~0UL, length of included message body */
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HFields *transenc; /* if present, encoding of included message body */
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char *client;
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char *host;
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HContent *okencode;
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HContent *oklang;
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HContent *oktype;
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HContent *okchar;
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ulong ifmodsince;
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ulong ifunmodsince;
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ulong ifrangedate;
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HETag *ifmatch;
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HETag *ifnomatch;
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HETag *ifrangeetag;
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HRange *range;
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char *authuser; /* authorization info */
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char *authpass;
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HSPairs *cookie; /* if present, list of cookies */
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HSPairs *authinfo; /* digest authorization */
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/*
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* experimental headers
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*/
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int fresh_thresh;
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int fresh_have;
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};
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/*
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* all of the state for a particular connection
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*/
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struct HConnect
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{
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void *private; /* for the library clients */
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void (*replog)(HConnect*, char*, ...); /* called when reply sent */
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char *scheme; /* "http" vs. "https" */
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char *port; /* may be arbitrary, i.e., neither 80 nor 443 */
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HttpReq req;
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HttpHead head;
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Bin *bin;
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ulong reqtime; /* time at start of request */
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char xferbuf[HBufSize]; /* buffer for making up or transferring data */
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uchar header[HBufSize + 2]; /* room for \n\0 */
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uchar *hpos;
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uchar *hstop;
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Hio hin;
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Hio hout;
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};
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/*
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* configuration for all connections within the server
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*/
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extern char* hmydomain;
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extern char* hversion;
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extern Htmlesc htmlesc[];
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/*
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* .+2,/^$/ | sort -bd +1
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*/
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void *halloc(HConnect *c, ulong size);
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Hio *hbodypush(Hio *hh, ulong len, HFields *te);
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int hbuflen(Hio *h, void *p);
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int hcheckcontent(HContent*, HContent*, char*, int);
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void hclose(Hio*);
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ulong hdate2sec(char*);
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int hdatefmt(Fmt*);
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int hfail(HConnect*, int, ...);
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int hflush(Hio*);
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int hgetc(Hio*);
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int hgethead(HConnect *c, int many);
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int hinit(Hio*, int, int);
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int hiserror(Hio *h);
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int hlflush(Hio*);
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int hload(Hio*, char*);
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char *hlower(char*);
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HContent *hmkcontent(HConnect *c, char *generic, char *specific, HContent *next);
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HFields *hmkhfields(HConnect *c, char *s, HSPairs *p, HFields *next);
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char *hmkmimeboundary(HConnect *c);
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HSPairs *hmkspairs(HConnect *c, char *s, char *t, HSPairs *next);
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int hmoved(HConnect *c, char *uri);
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void hokheaders(HConnect *c);
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int hparseheaders(HConnect*, int timeout);
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HSPairs *hparsequery(HConnect *c, char *search);
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int hparsereq(HConnect *c, int timeout);
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int hprint(Hio*, char*, ...);
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int hputc(Hio*, int);
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void *hreadbuf(Hio *h, void *vsave);
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int hredirected(HConnect *c, char *how, char *uri);
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void hreqcleanup(HConnect *c);
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HFields *hrevhfields(HFields *hf);
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HSPairs *hrevspairs(HSPairs *sp);
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char *hstrdup(HConnect *c, char *s);
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int http11(HConnect*);
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int httpfmt(Fmt*);
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char *httpunesc(HConnect *c, char *s);
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int hunallowed(HConnect *, char *allowed);
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int hungetc(Hio *h);
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char *hunload(Hio*);
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int hurlfmt(Fmt*);
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char *hurlunesc(HConnect *c, char *s);
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int hwrite(Hio*, void*, int);
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int hxferenc(Hio*, int);
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#pragma varargck argpos hprint 2
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/*
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* D is httpd format date conversion
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* U is url escape convertsion
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* H is html escape conversion
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*/
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#pragma varargck type "D" long
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#pragma varargck type "D" ulong
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#pragma varargck type "U" char*
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#pragma varargck type "H" char*
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