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a6b4c0df5f
* Merged version 2.1 of GoAhead webserver. This update was submitted by Antti P Miettinen <antti.p.miettinen@nokia.com>. * NOTES, base64.c, ejIntrn.h, emfdb.c, emfdb.h, md5.h, md5c.c, um.c, um.h: New files. * wbase64.c: Removed. * Makefile.am, asp.c, balloc.c, default.c, ej.h, ejlex.c, ejparse.c, form.c, h.c, handler.c, mime.c, misc.c, ringq.c, rom.c, security.c, socket.c, sym.c, uemf.c, uemf.h, url.c, value.c, webcomp.c, webmain.c, webpage.c, webrom.c, webs.c, webs.h, websuemf.c, wsIntrn.h: Modified.
192 lines
3.9 KiB
C
192 lines
3.9 KiB
C
/*
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* rom.c -- Support for ROMed page retrieval.
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*
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* Copyright (c) GoAhead Software Inc., 1995-2000. All Rights Reserved.
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*
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* See the file "license.txt" for usage and redistribution license requirements
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*/
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/******************************** Description *********************************/
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/*
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* This module provides web page retrieval from compiled web pages. Use the
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* webcomp program to compile web pages and link into the GoAhead WebServer.
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* This module uses a hashed symbol table for fast page lookup.
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*
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* Usage: webcomp -f webPageFileList -p Prefix >webrom.c
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*/
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/********************************* Includes ***********************************/
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#include <stdlib.h>
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#include "wsIntrn.h"
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/******************************** Local Data **********************************/
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#if WEBS_PAGE_ROM
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sym_fd_t romTab; /* Symbol table for web pages */
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/*********************************** Code *************************************/
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/*
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* Open the ROM module
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*/
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int websRomOpen()
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{
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websRomPageIndexType *wip;
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int nchars;
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char_t name[SYM_MAX];
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romTab = symOpen(WEBS_SYM_INIT);
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for (wip = websRomPageIndex; wip->path; wip++) {
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gstrncpy(name, wip->path, SYM_MAX);
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nchars = gstrlen(name) - 1;
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if (nchars > 0 &&
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(name[nchars] == '/' || name[nchars] == '\\')) {
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name[nchars] = '\0';
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}
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symEnter(romTab, name, valueInteger((int) wip), 0);
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}
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return 0;
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}
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/******************************************************************************/
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/*
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* Close the ROM module
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*/
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void websRomClose()
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{
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symClose(romTab);
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}
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/******************************************************************************/
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/*
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* Open a web page
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*/
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int websRomPageOpen(webs_t wp, char_t *path, int mode, int perm)
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{
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websRomPageIndexType *wip;
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sym_t *sp;
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a_assert(websValid(wp));
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a_assert(path && *path);
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if ((sp = symLookup(romTab, path)) == NULL) {
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return -1;
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}
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wip = (websRomPageIndexType*) sp->content.value.integer;
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wip->pos = 0;
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return (wp->docfd = wip - websRomPageIndex);
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}
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/******************************************************************************/
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/*
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* Close a web page
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*/
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void websRomPageClose(int fd)
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{
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}
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/******************************************************************************/
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/*
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* Stat a web page
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*/
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int websRomPageStat(char_t *path, websStatType *sbuf)
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{
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websRomPageIndexType *wip;
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sym_t *sp;
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a_assert(path && *path);
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if ((sp = symLookup(romTab, path)) == NULL) {
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return -1;
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}
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wip = (websRomPageIndexType*) sp->content.value.integer;
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memset(sbuf, 0, sizeof(websStatType));
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sbuf->size = wip->size;
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if (wip->page == NULL) {
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sbuf->isDir = 1;
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}
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return 0;
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}
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/******************************************************************************/
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/*
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* Read a web page
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*/
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int websRomPageReadData(webs_t wp, char *buf, int nBytes)
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{
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websRomPageIndexType *wip;
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int len;
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a_assert(websValid(wp));
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a_assert(buf);
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a_assert(wp->docfd >= 0);
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wip = &websRomPageIndex[wp->docfd];
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len = min(wip->size - wip->pos, nBytes);
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memcpy(buf, &wip->page[wip->pos], len);
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wip->pos += len;
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return len;
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}
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/******************************************************************************/
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/*
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* Position a web page
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*/
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long websRomPageSeek(webs_t wp, long offset, int origin)
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{
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websRomPageIndexType *wip;
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long pos;
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a_assert(websValid(wp));
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a_assert(origin == SEEK_SET || origin == SEEK_CUR || origin == SEEK_END);
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a_assert(wp->docfd >= 0);
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wip = &websRomPageIndex[wp->docfd];
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if (origin != SEEK_SET && origin != SEEK_CUR && origin != SEEK_END) {
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errno = EINVAL;
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return -1;
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}
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if (wp->docfd < 0) {
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errno = EBADF;
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return -1;
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}
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pos = offset;
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switch (origin) {
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case SEEK_CUR:
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pos = wip->pos + offset;
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break;
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case SEEK_END:
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pos = wip->size + offset;
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break;
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default:
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break;
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}
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if (pos < 0) {
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errno = EBADF;
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return -1;
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}
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return (wip->pos = pos);
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}
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#endif /* WEBS_PAGE_ROM */
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/******************************************************************************/
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