diff options
Diffstat (limited to 'xorg-server/hw/dmx/config/dmxparse.c')
| -rw-r--r-- | xorg-server/hw/dmx/config/dmxparse.c | 610 |
1 files changed, 610 insertions, 0 deletions
diff --git a/xorg-server/hw/dmx/config/dmxparse.c b/xorg-server/hw/dmx/config/dmxparse.c new file mode 100644 index 000000000..0bf947051 --- /dev/null +++ b/xorg-server/hw/dmx/config/dmxparse.c @@ -0,0 +1,610 @@ +/* + * Copyright 2002 Red Hat Inc., Durham, North Carolina. + * + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation on the rights to use, copy, modify, merge, + * publish, distribute, sublicense, and/or sell copies of the Software, + * and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial + * portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NON-INFRINGEMENT. IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +/* + * Authors: + * Rickard E. (Rik) Faith <faith@redhat.com> + * + */ + +/** \file + * + * This file provides support routines and helper functions to be used + * by the DMX configuration file parser. + * + * Because the DMX configuration file parsing should be capable of being + * used in a stand-alone fashion (i.e., independent from the DMX server + * source tree), no dependencies on other DMX routines are made. */ + +#ifdef HAVE_DMX_CONFIG_H +#include <dmx-config.h> +#endif + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <stdarg.h> +#include "dmxparse.h" + +/** A general error logging routine that does not depend on the dmxLog + * functions. */ +void dmxConfigLog(const char *format, ...) +{ + va_list args; + + va_start(args, format); + vprintf(format, args); /* RATS: All calls to dmxConfigLog from + * dmxparse.c and dmxprint.c use a + * trusted format. */ + va_end(args); +} + +void *dmxConfigAlloc(unsigned long bytes) +{ + void *area = malloc(bytes); + if (!area) { + dmxConfigLog("dmxConfigAlloc: out of memory\n"); + return NULL; + } + memset(area, 0, bytes); + return area; +} + +void *dmxConfigRealloc(void *orig, unsigned long orig_bytes, + unsigned long bytes) +{ + unsigned char *area = realloc(orig, bytes); + if (!area) { + dmxConfigLog("dmxConfigRealloc: out of memory\n"); + return NULL; + } + memset(area + orig_bytes, 0, bytes - orig_bytes); + return area; +} + +const char *dmxConfigCopyString(const char *string, int length) +{ + char *copy; + + if (!length) length = strlen(string); + copy = dmxConfigAlloc(length + 1); + if (length) strncpy(copy, string, length); + copy[length] = '\0'; + return copy; +} + +void dmxConfigFree(void *area) +{ + if (area) free(area); +} + +DMXConfigTokenPtr dmxConfigCreateToken(int token, int line, + const char *comment) +{ + DMXConfigTokenPtr pToken = dmxConfigAlloc(sizeof(*pToken)); + pToken->token = token; + pToken->line = line; + pToken->comment = comment; + return pToken; +} + +void dmxConfigFreeToken(DMXConfigTokenPtr p) +{ + if (!p) return; + dmxConfigFree((void *)p->comment); + dmxConfigFree(p); +} + +DMXConfigStringPtr dmxConfigCreateString(int token, int line, + const char *comment, + const char *string) +{ + DMXConfigStringPtr pString = dmxConfigAlloc(sizeof(*pString)); + + pString->token = token; + pString->line = line; + pString->comment = comment; + pString->string = string; + return pString; +} + +void dmxConfigFreeString(DMXConfigStringPtr p) +{ + DMXConfigStringPtr next; + + if (!p) return; + do { + next = p->next; + dmxConfigFree((void *)p->comment); + dmxConfigFree((void *)p->string); + dmxConfigFree(p); + } while ((p = next)); +} + +DMXConfigNumberPtr dmxConfigCreateNumber(int token, int line, + const char *comment, + int number) +{ + DMXConfigNumberPtr pNumber = dmxConfigAlloc(sizeof(*pNumber)); + + pNumber->token = token; + pNumber->line = line; + pNumber->comment = comment; + pNumber->number = number; + return pNumber; +} + +void dmxConfigFreeNumber(DMXConfigNumberPtr p) +{ + if (!p) return; + dmxConfigFree((void *)p->comment); + dmxConfigFree(p); +} + +DMXConfigPairPtr dmxConfigCreatePair(int token, int line, + const char *comment, + int x, int y, + int xsign, int ysign) +{ + DMXConfigPairPtr pPair = dmxConfigAlloc(sizeof(*pPair)); + + pPair->token = token; + pPair->line = line; + pPair->comment = comment; + pPair->x = x; + pPair->y = y; + pPair->xsign = (xsign < 0) ? -1 : 1; + pPair->ysign = (ysign < 0) ? -1 : 1; + return pPair; +} + +void dmxConfigFreePair(DMXConfigPairPtr p) +{ + if (!p) return; + dmxConfigFree((void *)p->comment); + dmxConfigFree(p); +} + +DMXConfigCommentPtr dmxConfigCreateComment(int token, int line, + const char *comment) +{ + DMXConfigCommentPtr pComment = dmxConfigAlloc(sizeof(*pComment)); + + pComment->token = token; + pComment->line = line; + pComment->comment = comment; + return pComment; +} + +void dmxConfigFreeComment(DMXConfigCommentPtr p) +{ + if (!p) return; + dmxConfigFree((void *)p->comment); + dmxConfigFree(p); +} + +DMXConfigPartDimPtr dmxConfigCreatePartDim(DMXConfigPairPtr pDim, + DMXConfigPairPtr pOffset) +{ + DMXConfigPartDimPtr pPart = dmxConfigAlloc(sizeof(*pPart)); + pPart->dim = pDim; + pPart->offset = pOffset; + return pPart; +} + +void dmxConfigFreePartDim(DMXConfigPartDimPtr p) +{ + if (!p) return; + dmxConfigFreePair(p->dim); + dmxConfigFreePair(p->offset); + dmxConfigFree(p); +} + +DMXConfigFullDimPtr dmxConfigCreateFullDim(DMXConfigPartDimPtr pScrn, + DMXConfigPartDimPtr pRoot) +{ + DMXConfigFullDimPtr pFull = dmxConfigAlloc(sizeof(*pFull)); + pFull->scrn = pScrn; + pFull->root = pRoot; + return pFull; +} + +void dmxConfigFreeFullDim(DMXConfigFullDimPtr p) +{ + if (!p) return; + dmxConfigFreePartDim(p->scrn); + dmxConfigFreePartDim(p->root); + dmxConfigFree(p); +} + +DMXConfigDisplayPtr dmxConfigCreateDisplay(DMXConfigTokenPtr pStart, + DMXConfigStringPtr pName, + DMXConfigFullDimPtr pDim, + DMXConfigPairPtr pOrigin, + DMXConfigTokenPtr pEnd) +{ + DMXConfigDisplayPtr pDisplay = dmxConfigAlloc(sizeof(*pDisplay)); + + memset(pDisplay, 0, sizeof(*pDisplay)); + + pDisplay->start = pStart; + pDisplay->dname = pName; + pDisplay->dim = pDim; + pDisplay->origin = pOrigin; + pDisplay->end = pEnd; + + pDisplay->name = pName ? pName->string : NULL; + pDisplay->rootXOrigin = pOrigin ? pOrigin->x : 0; + pDisplay->rootYOrigin = pOrigin ? pOrigin->y : 0; + + if (pDim && pDim->scrn && pDim->scrn->dim) { + pDisplay->scrnWidth = pDim->scrn->dim->x; + pDisplay->scrnHeight = pDim->scrn->dim->y; + } + if (pDim && pDim->scrn && pDim->scrn->offset) { + pDisplay->scrnX = pDim->scrn->offset->x; + pDisplay->scrnY = pDim->scrn->offset->y; + pDisplay->scrnXSign = pDim->scrn->offset->xsign; + pDisplay->scrnYSign = pDim->scrn->offset->ysign; + } + + if (pDim && pDim->root) { + if (pDim->root->dim) { + pDisplay->rootWidth = pDim->root->dim->x; + pDisplay->rootHeight = pDim->root->dim->y; + } + if (pDim->root->offset) { + pDisplay->rootX = pDim->root->offset->x; + pDisplay->rootY = pDim->root->offset->y; + pDisplay->rootXSign = pDim->root->offset->xsign; + pDisplay->rootYSign = pDim->root->offset->ysign; + } + } else { /* If no root specification, copy width + * and height from scrn -- leave offset + * as zero, since it is relative to + * scrn. */ + pDisplay->rootWidth = pDisplay->scrnWidth; + pDisplay->rootHeight = pDisplay->scrnHeight; + } + + + return pDisplay; +} + +void dmxConfigFreeDisplay(DMXConfigDisplayPtr p) +{ + if (!p) return; + dmxConfigFreeToken(p->start); + dmxConfigFreeString(p->dname); + dmxConfigFreeFullDim(p->dim); + dmxConfigFreeToken(p->end); + dmxConfigFree(p); +} + +DMXConfigWallPtr dmxConfigCreateWall(DMXConfigTokenPtr pStart, + DMXConfigPairPtr pWallDim, + DMXConfigPairPtr pDisplayDim, + DMXConfigStringPtr pNameList, + DMXConfigTokenPtr pEnd) +{ + DMXConfigWallPtr pWall = dmxConfigAlloc(sizeof(*pWall)); + + pWall->start = pStart; + pWall->wallDim = pWallDim; + pWall->displayDim = pDisplayDim; + pWall->nameList = pNameList; + pWall->end = pEnd; + + pWall->width = pDisplayDim ? pDisplayDim->x : 0; + pWall->height = pDisplayDim ? pDisplayDim->y : 0; + pWall->xwall = pWallDim ? pWallDim->x : 0; + pWall->ywall = pWallDim ? pWallDim->y : 0; + + return pWall; +} + +void dmxConfigFreeWall(DMXConfigWallPtr p) +{ + if (!p) return; + dmxConfigFreeToken(p->start); + dmxConfigFreePair(p->wallDim); + dmxConfigFreePair(p->displayDim); + dmxConfigFreeString(p->nameList); + dmxConfigFreeToken(p->end); + dmxConfigFree(p); +} + +DMXConfigOptionPtr dmxConfigCreateOption(DMXConfigTokenPtr pStart, + DMXConfigStringPtr pOption, + DMXConfigTokenPtr pEnd) +{ + int length = 0; + int offset = 0; + DMXConfigStringPtr p; + DMXConfigOptionPtr option = dmxConfigAlloc(sizeof(*option)); + + for (p = pOption; p; p = p->next) { + if (p->string) length += strlen(p->string) + 1; + } + + option->string = dmxConfigAlloc(length + 1); + + for (p = pOption; p; p = p->next) { + if (p->string) { + int len = strlen(p->string); + strncpy(option->string + offset, p->string, len); + offset += len; + if (p->next) option->string[offset++] = ' '; + } + } + option->string[offset] = '\0'; + + option->start = pStart; + option->option = pOption; + option->end = pEnd; + + return option; +} + +void dmxConfigFreeOption(DMXConfigOptionPtr p) +{ + if (!p) return; + if (p->string) free(p->string); + dmxConfigFreeToken(p->start); + dmxConfigFreeString(p->option); + dmxConfigFreeToken(p->end); + dmxConfigFree(p); +} + +const char **dmxConfigLookupParam(DMXConfigParamPtr p, const char *key, + int *argc) +{ + DMXConfigParamPtr pt; + + for (pt = p; pt; pt = pt->next) { + if (pt->argv && !strcasecmp(pt->argv[0], key)) { + *argc = pt->argc; + return pt->argv; + } + } + *argc = 0; + return NULL; +} + +DMXConfigParamPtr dmxConfigCreateParam(DMXConfigTokenPtr pStart, + DMXConfigTokenPtr pOpen, + DMXConfigStringPtr pParam, + DMXConfigTokenPtr pClose, + DMXConfigTokenPtr pEnd) +{ + DMXConfigParamPtr param = dmxConfigAlloc(sizeof(*param)); + DMXConfigStringPtr pt; + + param->argc = 0; + param->argv = NULL; + for (pt = pParam; pt; pt = pt->next) { + if (pt->string) { + param->argv = realloc(param->argv, + (param->argc+2) * sizeof(*param->argv)); + param->argv[param->argc] = pt->string; + ++param->argc; + } + } + if (param->argv) param->argv[param->argc] = NULL; + + param->start = pStart; + param->open = pOpen; + param->param = pParam; + param->close = pClose; + param->end = pEnd; + + return param; +} + +void dmxConfigFreeParam(DMXConfigParamPtr p) +{ + DMXConfigParamPtr next; + + if (!p) return; + do { + next = p->next; + dmxConfigFreeToken(p->start); + dmxConfigFreeToken(p->open); + dmxConfigFreeString(p->param); + dmxConfigFreeToken(p->close); + dmxConfigFreeToken(p->end); + dmxConfigFree(p->argv); + dmxConfigFree(p); + } while ((p = next)); +} + +DMXConfigSubPtr dmxConfigCreateSub(DMXConfigType type, + DMXConfigCommentPtr comment, + DMXConfigDisplayPtr display, + DMXConfigWallPtr wall, + DMXConfigOptionPtr option, + DMXConfigParamPtr param) +{ + DMXConfigSubPtr pSub = dmxConfigAlloc(sizeof(*pSub)); + pSub->type = type; + switch (type) { + case dmxConfigComment: pSub->comment = comment; break; + case dmxConfigDisplay: pSub->display = display; break; + case dmxConfigWall: pSub->wall = wall; break; + case dmxConfigOption: pSub->option = option; break; + case dmxConfigParam: pSub->param = param; break; + default: dmxConfigLog("Type %d not supported in subentry\n", type); break; + } + return pSub; +} + +void dmxConfigFreeSub(DMXConfigSubPtr sub) +{ + DMXConfigSubPtr pt; + + for (pt = sub; pt; pt = pt->next) { + switch (pt->type) { + case dmxConfigComment: dmxConfigFreeComment(pt->comment); break; + case dmxConfigDisplay: dmxConfigFreeDisplay(pt->display); break; + case dmxConfigWall: dmxConfigFreeWall(pt->wall); break; + case dmxConfigOption: dmxConfigFreeOption(pt->option); break; + case dmxConfigParam: dmxConfigFreeParam(pt->param); break; + default: + dmxConfigLog("Type %d not supported in subentry\n", pt->type); + break; + } + } + dmxConfigFree(sub); +} + +DMXConfigSubPtr dmxConfigSubComment(DMXConfigCommentPtr comment) +{ + return dmxConfigCreateSub(dmxConfigComment, comment, NULL, NULL, NULL, + NULL); +} + +DMXConfigSubPtr dmxConfigSubDisplay(DMXConfigDisplayPtr display) +{ + return dmxConfigCreateSub(dmxConfigDisplay, NULL, display, NULL, NULL, + NULL); +} + +DMXConfigSubPtr dmxConfigSubWall(DMXConfigWallPtr wall) +{ + return dmxConfigCreateSub(dmxConfigWall, NULL, NULL, wall, NULL, NULL); +} + +DMXConfigSubPtr dmxConfigSubOption(DMXConfigOptionPtr option) +{ + return dmxConfigCreateSub(dmxConfigOption, NULL, NULL, NULL, option, NULL); +} + +DMXConfigSubPtr dmxConfigSubParam(DMXConfigParamPtr param) +{ + return dmxConfigCreateSub(dmxConfigParam, NULL, NULL, NULL, NULL, param); +} + +extern DMXConfigSubPtr dmxConfigAddSub(DMXConfigSubPtr head, + DMXConfigSubPtr sub) +{ + DMXConfigSubPtr pt; + + if (!head) return sub; + for (pt = head; pt->next; pt = pt->next); + pt->next = sub; + return head; +} + +DMXConfigVirtualPtr dmxConfigCreateVirtual(DMXConfigTokenPtr pStart, + DMXConfigStringPtr pName, + DMXConfigPairPtr pDim, + DMXConfigTokenPtr pOpen, + DMXConfigSubPtr pSubentry, + DMXConfigTokenPtr pClose) +{ + DMXConfigVirtualPtr pVirtual = dmxConfigAlloc(sizeof(*pVirtual)); + + pVirtual->start = pStart; + pVirtual->vname = pName; + pVirtual->dim = pDim; + pVirtual->open = pOpen; + pVirtual->subentry = pSubentry; + pVirtual->close = pClose; + + pVirtual->name = pName ? pName->string : NULL; + pVirtual->width = pDim ? pDim->x : 0; + pVirtual->height = pDim ? pDim->y : 0; + + return pVirtual; +} + +void dmxConfigFreeVirtual(DMXConfigVirtualPtr virtual) +{ + dmxConfigFreeToken(virtual->start); + dmxConfigFreeString(virtual->vname); + dmxConfigFreePair(virtual->dim); + dmxConfigFreeToken(virtual->open); + dmxConfigFreeSub(virtual->subentry); + dmxConfigFreeToken(virtual->close); + dmxConfigFree(virtual); +} + +DMXConfigEntryPtr dmxConfigCreateEntry(DMXConfigType type, + DMXConfigCommentPtr comment, + DMXConfigVirtualPtr virtual) +{ + DMXConfigEntryPtr pEntry = dmxConfigAlloc(sizeof(*pEntry)); + pEntry->type = type; + switch (type) { + case dmxConfigComment: pEntry->comment = comment; break; + case dmxConfigVirtual: pEntry->virtual = virtual; break; + default: dmxConfigLog("Type %d not supported in entry\n", type); break; + } + return pEntry; +} + +void dmxConfigFreeEntry(DMXConfigEntryPtr entry) +{ + DMXConfigEntryPtr pt; + + for (pt = entry; pt; pt = pt->next) { + switch (pt->type) { + case dmxConfigComment: dmxConfigFreeComment(pt->comment); break; + case dmxConfigVirtual: dmxConfigFreeVirtual(pt->virtual); break; + default: + dmxConfigLog("Type %d not supported in entry\n", pt->type); + break; + } + } + dmxConfigFree(entry); +} + +DMXConfigEntryPtr dmxConfigAddEntry(DMXConfigEntryPtr head, + DMXConfigType type, + DMXConfigCommentPtr comment, + DMXConfigVirtualPtr virtual) +{ + DMXConfigEntryPtr child = dmxConfigCreateEntry(type, comment, virtual); + DMXConfigEntryPtr pt; + + if (!head) return child; + + for (pt = head; pt->next; pt = pt->next); + pt->next = child; + + return head; +} + +DMXConfigEntryPtr dmxConfigEntryComment(DMXConfigCommentPtr comment) +{ + return dmxConfigCreateEntry(dmxConfigComment, comment, NULL); +} + +DMXConfigEntryPtr dmxConfigEntryVirtual(DMXConfigVirtualPtr virtual) +{ + return dmxConfigCreateEntry(dmxConfigVirtual, NULL, virtual); +} |