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Diffstat (limited to 'libXpm/src/CrDatFrI.c')
-rw-r--r--libXpm/src/CrDatFrI.c806
1 files changed, 403 insertions, 403 deletions
diff --git a/libXpm/src/CrDatFrI.c b/libXpm/src/CrDatFrI.c
index 0dacf5127..04bb9a046 100644
--- a/libXpm/src/CrDatFrI.c
+++ b/libXpm/src/CrDatFrI.c
@@ -1,403 +1,403 @@
-/*
- * Copyright (C) 1989-95 GROUPE BULL
- *
- * 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 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 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 NONINFRINGEMENT. IN NO EVENT SHALL
- * GROUPE BULL 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.
- *
- * Except as contained in this notice, the name of GROUPE BULL shall not be
- * used in advertising or otherwise to promote the sale, use or other dealings
- * in this Software without prior written authorization from GROUPE BULL.
- */
-
-/*****************************************************************************\
-* CrDataFI.c: *
-* *
-* XPM library *
-* Scan an image and possibly its mask and create an XPM array *
-* *
-* Developed by Arnaud Le Hors *
-\*****************************************************************************/
-
-/* October 2004, source code review by Thomas Biege <thomas@suse.de> */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-#include "XpmI.h"
-
-LFUNC(CreateColors, int, (char **dataptr, unsigned int *data_size,
- XpmColor *colors, unsigned int ncolors,
- unsigned int cpp));
-
-LFUNC(CreatePixels, void, (char **dataptr, unsigned int data_size,
- unsigned int width,
- unsigned int height, unsigned int cpp,
- unsigned int *pixels, XpmColor *colors));
-
-LFUNC(CountExtensions, void, (XpmExtension *ext, unsigned int num,
- unsigned int *ext_size,
- unsigned int *ext_nlines));
-
-LFUNC(CreateExtensions, void, (char **dataptr, unsigned int data_size,
- unsigned int offset,
- XpmExtension *ext, unsigned int num,
- unsigned int ext_nlines));
-
-int
-XpmCreateDataFromImage(
- Display *display,
- char ***data_return,
- XImage *image,
- XImage *shapeimage,
- XpmAttributes *attributes)
-{
- XpmImage xpmimage;
- XpmInfo info;
- int ErrorStatus;
-
- /* initialize return value */
- if (data_return)
- *data_return = NULL;
-
- /* create an XpmImage from the image */
- ErrorStatus = XpmCreateXpmImageFromImage(display, image, shapeimage,
- &xpmimage, attributes);
- if (ErrorStatus != XpmSuccess)
- return (ErrorStatus);
-
- /* create the data from the XpmImage */
- if (attributes) {
- xpmSetInfo(&info, attributes);
- ErrorStatus = XpmCreateDataFromXpmImage(data_return, &xpmimage, &info);
- } else
- ErrorStatus = XpmCreateDataFromXpmImage(data_return, &xpmimage, NULL);
-
- /* free the XpmImage */
- XpmFreeXpmImage(&xpmimage);
-
- return (ErrorStatus);
-}
-
-#undef RETURN
-#define RETURN(status) \
-do \
-{ \
- ErrorStatus = status; \
- goto exit; \
-} while(0)
-
-int
-XpmCreateDataFromXpmImage(
- char ***data_return,
- XpmImage *image,
- XpmInfo *info)
-{
- /* calculation variables */
- int ErrorStatus;
- char buf[BUFSIZ];
- char **header = NULL, **data, **sptr, **sptr2, *s;
- unsigned int header_size, header_nlines;
- unsigned int data_size, data_nlines;
- unsigned int extensions = 0, ext_size = 0, ext_nlines = 0;
- unsigned int offset, l, n;
-
- *data_return = NULL;
-
- extensions = info && (info->valuemask & XpmExtensions)
- && info->nextensions;
-
- /* compute the number of extensions lines and size */
- if (extensions)
- CountExtensions(info->extensions, info->nextensions,
- &ext_size, &ext_nlines);
-
- /*
- * alloc a temporary array of char pointer for the header section which
- * is the hints line + the color table lines
- */
- header_nlines = 1 + image->ncolors; /* this may wrap and/or become 0 */
-
- /* 2nd check superfluous if we do not need header_nlines any further */
- if(header_nlines <= image->ncolors ||
- header_nlines >= UINT_MAX / sizeof(char *))
- return(XpmNoMemory);
-
- header_size = sizeof(char *) * header_nlines;
- if (header_size >= UINT_MAX / sizeof(char *))
- return (XpmNoMemory);
- header = (char **) XpmCalloc(header_size, sizeof(char *)); /* can we trust image->ncolors */
- if (!header)
- return (XpmNoMemory);
-
- /* print the hints line */
- s = buf;
-#ifndef VOID_SPRINTF
- s +=
-#endif
- sprintf(s, "%d %d %d %d", image->width, image->height,
- image->ncolors, image->cpp);
-#ifdef VOID_SPRINTF
- s += strlen(s);
-#endif
-
- if (info && (info->valuemask & XpmHotspot)) {
-#ifndef VOID_SPRINTF
- s +=
-#endif
- sprintf(s, " %d %d", info->x_hotspot, info->y_hotspot);
-#ifdef VOID_SPRINTF
- s += strlen(s);
-#endif
- }
- if (extensions) {
- strcpy(s, " XPMEXT");
- s += 7;
- }
- l = s - buf + 1;
- *header = (char *) XpmMalloc(l);
- if (!*header)
- RETURN(XpmNoMemory);
- header_size += l;
- strcpy(*header, buf);
-
- /* print colors */
- ErrorStatus = CreateColors(header + 1, &header_size,
- image->colorTable, image->ncolors, image->cpp);
-
- if (ErrorStatus != XpmSuccess)
- RETURN(ErrorStatus);
-
- /* now we know the size needed, alloc the data and copy the header lines */
- offset = image->width * image->cpp + 1;
-
- if(offset <= image->width || offset <= image->cpp)
- RETURN(XpmNoMemory);
-
- if( (image->height + ext_nlines) >= UINT_MAX / sizeof(char *))
- RETURN(XpmNoMemory);
- data_size = (image->height + ext_nlines) * sizeof(char *);
-
- if (image->height > UINT_MAX / offset ||
- image->height * offset > UINT_MAX - data_size)
- RETURN(XpmNoMemory);
- data_size += image->height * offset;
-
- if( (header_size + ext_size) >= (UINT_MAX - data_size) )
- RETURN(XpmNoMemory);
- data_size += header_size + ext_size;
-
- data = (char **) XpmMalloc(data_size);
- if (!data)
- RETURN(XpmNoMemory);
-
- data_nlines = header_nlines + image->height + ext_nlines;
- *data = (char *) (data + data_nlines);
-
- /* can header have less elements then n suggests? */
- n = image->ncolors;
- for (l = 0, sptr = data, sptr2 = header; l <= n && sptr && sptr2; l++, sptr++, sptr2++) {
- strcpy(*sptr, *sptr2);
- *(sptr + 1) = *sptr + strlen(*sptr2) + 1;
- }
-
- /* print pixels */
- data[header_nlines] = (char *) data + header_size
- + (image->height + ext_nlines) * sizeof(char *);
-
- CreatePixels(data + header_nlines, data_size-header_nlines, image->width, image->height,
- image->cpp, image->data, image->colorTable);
-
- /* print extensions */
- if (extensions)
- CreateExtensions(data + header_nlines + image->height - 1,
- data_size - header_nlines - image->height + 1, offset,
- info->extensions, info->nextensions,
- ext_nlines);
-
- *data_return = data;
- ErrorStatus = XpmSuccess;
-
-/* exit point, free only locally allocated variables */
-exit:
- if (header) {
- for (l = 0; l < header_nlines; l++)
- if (header[l])
- XpmFree(header[l]);
- XpmFree(header);
- }
- return(ErrorStatus);
-}
-
-static int
-CreateColors(
- char **dataptr,
- unsigned int *data_size,
- XpmColor *colors,
- unsigned int ncolors,
- unsigned int cpp)
-{
- char buf[BUFSIZ];
- unsigned int a, key, l;
- char *s, *s2;
- char **defaults;
-
- /* can ncolors be trusted here? */
- for (a = 0; a < ncolors; a++, colors++, dataptr++) {
-
- defaults = (char **) colors;
- if(sizeof(buf) <= cpp)
- return(XpmNoMemory);
- strncpy(buf, *defaults++, cpp);
- s = buf + cpp;
-
- if(sizeof(buf) <= (s-buf))
- return XpmNoMemory;
-
- for (key = 1; key <= NKEYS; key++, defaults++) {
- if ((s2 = *defaults)) {
-#ifndef VOID_SPRINTF
- s +=
-#endif
- /* assume C99 compliance */
- snprintf(s, sizeof(buf)-(s-buf), "\t%s %s", xpmColorKeys[key - 1], s2);
-#ifdef VOID_SPRINTF
- s += strlen(s);
-#endif
- /* does s point out-of-bounds? */
- if(sizeof(buf) < (s-buf))
- return XpmNoMemory;
- }
- }
- /* what about using strdup()? */
- l = s - buf + 1;
- s = (char *) XpmMalloc(l);
- if (!s)
- return (XpmNoMemory);
- *data_size += l;
- *dataptr = strcpy(s, buf);
- }
- return (XpmSuccess);
-}
-
-static void
-CreatePixels(
- char **dataptr,
- unsigned int data_size,
- unsigned int width,
- unsigned int height,
- unsigned int cpp,
- unsigned int *pixels,
- XpmColor *colors)
-{
- char *s;
- unsigned int x, y, h, offset;
-
- if(height <= 1)
- return;
-
- h = height - 1;
-
- offset = width * cpp + 1;
-
- if(offset <= width || offset <= cpp)
- return;
-
- /* why trust h? */
- for (y = 0; y < h; y++, dataptr++) {
- s = *dataptr;
- /* why trust width? */
- for (x = 0; x < width; x++, pixels++) {
- if(cpp > (data_size - (s - *dataptr)))
- return;
- strncpy(s, colors[*pixels].string, cpp); /* why trust pixel? */
- s += cpp;
- }
- *s = '\0';
- if(offset > data_size)
- return;
- *(dataptr + 1) = *dataptr + offset;
- }
- /* duplicate some code to avoid a test in the loop */
- s = *dataptr;
- /* why trust width? */
- for (x = 0; x < width; x++, pixels++) {
- if(cpp > data_size - (s - *dataptr))
- return;
- strncpy(s, colors[*pixels].string, cpp); /* why should we trust *pixel? */
- s += cpp;
- }
- *s = '\0';
-}
-
-static void
-CountExtensions(
- XpmExtension *ext,
- unsigned int num,
- unsigned int *ext_size,
- unsigned int *ext_nlines)
-{
- unsigned int x, y, a, size, nlines;
- char **line;
-
- size = 0;
- nlines = 0;
- for (x = 0; x < num; x++, ext++) {
- /* 1 for the name */
- nlines += ext->nlines + 1;
- /* 8 = 7 (for "XPMEXT ") + 1 (for 0) */
- size += strlen(ext->name) + 8;
- a = ext->nlines;
- for (y = 0, line = ext->lines; y < a; y++, line++)
- size += strlen(*line) + 1;
- }
- /* 10 and 1 are for the ending "XPMENDEXT" */
- *ext_size = size + 10;
- *ext_nlines = nlines + 1;
-}
-
-static void
-CreateExtensions(
- char **dataptr,
- unsigned int data_size,
- unsigned int offset,
- XpmExtension *ext,
- unsigned int num,
- unsigned int ext_nlines)
-{
- unsigned int x, y, a, b;
- char **line;
-
- *(dataptr + 1) = *dataptr + offset;
- dataptr++;
- a = 0;
- for (x = 0; x < num; x++, ext++) {
- snprintf(*dataptr, data_size, "XPMEXT %s", ext->name);
- a++;
- if (a < ext_nlines)
- *(dataptr + 1) = *dataptr + strlen(ext->name) + 8;
- dataptr++;
- b = ext->nlines; /* can we trust these values? */
- for (y = 0, line = ext->lines; y < b; y++, line++) {
- strcpy(*dataptr, *line);
- a++;
- if (a < ext_nlines)
- *(dataptr + 1) = *dataptr + strlen(*line) + 1;
- dataptr++;
- }
- }
- strcpy(*dataptr, "XPMENDEXT");
-}
+/*
+ * Copyright (C) 1989-95 GROUPE BULL
+ *
+ * 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 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 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 NONINFRINGEMENT. IN NO EVENT SHALL
+ * GROUPE BULL 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.
+ *
+ * Except as contained in this notice, the name of GROUPE BULL shall not be
+ * used in advertising or otherwise to promote the sale, use or other dealings
+ * in this Software without prior written authorization from GROUPE BULL.
+ */
+
+/*****************************************************************************\
+* CrDataFI.c: *
+* *
+* XPM library *
+* Scan an image and possibly its mask and create an XPM array *
+* *
+* Developed by Arnaud Le Hors *
+\*****************************************************************************/
+
+/* October 2004, source code review by Thomas Biege <thomas@suse.de> */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include "XpmI.h"
+
+LFUNC(CreateColors, int, (char **dataptr, unsigned int *data_size,
+ XpmColor *colors, unsigned int ncolors,
+ unsigned int cpp));
+
+LFUNC(CreatePixels, void, (char **dataptr, unsigned int data_size,
+ unsigned int width,
+ unsigned int height, unsigned int cpp,
+ unsigned int *pixels, XpmColor *colors));
+
+LFUNC(CountExtensions, void, (XpmExtension *ext, unsigned int num,
+ unsigned int *ext_size,
+ unsigned int *ext_nlines));
+
+LFUNC(CreateExtensions, void, (char **dataptr, unsigned int data_size,
+ unsigned int offset,
+ XpmExtension *ext, unsigned int num,
+ unsigned int ext_nlines));
+
+int
+XpmCreateDataFromImage(
+ Display *display,
+ char ***data_return,
+ XImage *image,
+ XImage *shapeimage,
+ XpmAttributes *attributes)
+{
+ XpmImage xpmimage;
+ XpmInfo info;
+ int ErrorStatus;
+
+ /* initialize return value */
+ if (data_return)
+ *data_return = NULL;
+
+ /* create an XpmImage from the image */
+ ErrorStatus = XpmCreateXpmImageFromImage(display, image, shapeimage,
+ &xpmimage, attributes);
+ if (ErrorStatus != XpmSuccess)
+ return (ErrorStatus);
+
+ /* create the data from the XpmImage */
+ if (attributes) {
+ xpmSetInfo(&info, attributes);
+ ErrorStatus = XpmCreateDataFromXpmImage(data_return, &xpmimage, &info);
+ } else
+ ErrorStatus = XpmCreateDataFromXpmImage(data_return, &xpmimage, NULL);
+
+ /* free the XpmImage */
+ XpmFreeXpmImage(&xpmimage);
+
+ return (ErrorStatus);
+}
+
+#undef RETURN
+#define RETURN(status) \
+do \
+{ \
+ ErrorStatus = status; \
+ goto exit; \
+} while(0)
+
+int
+XpmCreateDataFromXpmImage(
+ char ***data_return,
+ XpmImage *image,
+ XpmInfo *info)
+{
+ /* calculation variables */
+ int ErrorStatus;
+ char buf[BUFSIZ];
+ char **header = NULL, **data, **sptr, **sptr2, *s;
+ unsigned int header_size, header_nlines;
+ unsigned int data_size, data_nlines;
+ unsigned int extensions = 0, ext_size = 0, ext_nlines = 0;
+ unsigned int offset, l, n;
+
+ *data_return = NULL;
+
+ extensions = info && (info->valuemask & XpmExtensions)
+ && info->nextensions;
+
+ /* compute the number of extensions lines and size */
+ if (extensions)
+ CountExtensions(info->extensions, info->nextensions,
+ &ext_size, &ext_nlines);
+
+ /*
+ * alloc a temporary array of char pointer for the header section which
+ * is the hints line + the color table lines
+ */
+ header_nlines = 1 + image->ncolors; /* this may wrap and/or become 0 */
+
+ /* 2nd check superfluous if we do not need header_nlines any further */
+ if(header_nlines <= image->ncolors ||
+ header_nlines >= UINT_MAX / sizeof(char *))
+ return(XpmNoMemory);
+
+ header_size = sizeof(char *) * header_nlines;
+ if (header_size >= UINT_MAX / sizeof(char *))
+ return (XpmNoMemory);
+ header = (char **) XpmCalloc(header_size, sizeof(char *)); /* can we trust image->ncolors */
+ if (!header)
+ return (XpmNoMemory);
+
+ /* print the hints line */
+ s = buf;
+#ifndef VOID_SPRINTF
+ s +=
+#endif
+ sprintf(s, "%d %d %d %d", image->width, image->height,
+ image->ncolors, image->cpp);
+#ifdef VOID_SPRINTF
+ s += strlen(s);
+#endif
+
+ if (info && (info->valuemask & XpmHotspot)) {
+#ifndef VOID_SPRINTF
+ s +=
+#endif
+ sprintf(s, " %d %d", info->x_hotspot, info->y_hotspot);
+#ifdef VOID_SPRINTF
+ s += strlen(s);
+#endif
+ }
+ if (extensions) {
+ strcpy(s, " XPMEXT");
+ s += 7;
+ }
+ l = s - buf + 1;
+ *header = (char *) XpmMalloc(l);
+ if (!*header)
+ RETURN(XpmNoMemory);
+ header_size += l;
+ strcpy(*header, buf);
+
+ /* print colors */
+ ErrorStatus = CreateColors(header + 1, &header_size,
+ image->colorTable, image->ncolors, image->cpp);
+
+ if (ErrorStatus != XpmSuccess)
+ RETURN(ErrorStatus);
+
+ /* now we know the size needed, alloc the data and copy the header lines */
+ offset = image->width * image->cpp + 1;
+
+ if(offset <= image->width || offset <= image->cpp)
+ RETURN(XpmNoMemory);
+
+ if( (image->height + ext_nlines) >= UINT_MAX / sizeof(char *))
+ RETURN(XpmNoMemory);
+ data_size = (image->height + ext_nlines) * sizeof(char *);
+
+ if (image->height > UINT_MAX / offset ||
+ image->height * offset > UINT_MAX - data_size)
+ RETURN(XpmNoMemory);
+ data_size += image->height * offset;
+
+ if( (header_size + ext_size) >= (UINT_MAX - data_size) )
+ RETURN(XpmNoMemory);
+ data_size += header_size + ext_size;
+
+ data = (char **) XpmMalloc(data_size);
+ if (!data)
+ RETURN(XpmNoMemory);
+
+ data_nlines = header_nlines + image->height + ext_nlines;
+ *data = (char *) (data + data_nlines);
+
+ /* can header have less elements then n suggests? */
+ n = image->ncolors;
+ for (l = 0, sptr = data, sptr2 = header; l <= n && sptr && sptr2; l++, sptr++, sptr2++) {
+ strcpy(*sptr, *sptr2);
+ *(sptr + 1) = *sptr + strlen(*sptr2) + 1;
+ }
+
+ /* print pixels */
+ data[header_nlines] = (char *) data + header_size
+ + (image->height + ext_nlines) * sizeof(char *);
+
+ CreatePixels(data + header_nlines, data_size-header_nlines, image->width, image->height,
+ image->cpp, image->data, image->colorTable);
+
+ /* print extensions */
+ if (extensions)
+ CreateExtensions(data + header_nlines + image->height - 1,
+ data_size - header_nlines - image->height + 1, offset,
+ info->extensions, info->nextensions,
+ ext_nlines);
+
+ *data_return = data;
+ ErrorStatus = XpmSuccess;
+
+/* exit point, free only locally allocated variables */
+exit:
+ if (header) {
+ for (l = 0; l < header_nlines; l++)
+ if (header[l])
+ XpmFree(header[l]);
+ XpmFree(header);
+ }
+ return(ErrorStatus);
+}
+
+static int
+CreateColors(
+ char **dataptr,
+ unsigned int *data_size,
+ XpmColor *colors,
+ unsigned int ncolors,
+ unsigned int cpp)
+{
+ char buf[BUFSIZ];
+ unsigned int a, key, l;
+ char *s, *s2;
+ char **defaults;
+
+ /* can ncolors be trusted here? */
+ for (a = 0; a < ncolors; a++, colors++, dataptr++) {
+
+ defaults = (char **) colors;
+ if(sizeof(buf) <= cpp)
+ return(XpmNoMemory);
+ strncpy(buf, *defaults++, cpp);
+ s = buf + cpp;
+
+ if(sizeof(buf) <= (s-buf))
+ return XpmNoMemory;
+
+ for (key = 1; key <= NKEYS; key++, defaults++) {
+ if ((s2 = *defaults)) {
+#ifndef VOID_SPRINTF
+ s +=
+#endif
+ /* assume C99 compliance */
+ snprintf(s, sizeof(buf)-(s-buf), "\t%s %s", xpmColorKeys[key - 1], s2);
+#ifdef VOID_SPRINTF
+ s += strlen(s);
+#endif
+ /* does s point out-of-bounds? */
+ if(sizeof(buf) < (s-buf))
+ return XpmNoMemory;
+ }
+ }
+ /* what about using strdup()? */
+ l = s - buf + 1;
+ s = (char *) XpmMalloc(l);
+ if (!s)
+ return (XpmNoMemory);
+ *data_size += l;
+ *dataptr = strcpy(s, buf);
+ }
+ return (XpmSuccess);
+}
+
+static void
+CreatePixels(
+ char **dataptr,
+ unsigned int data_size,
+ unsigned int width,
+ unsigned int height,
+ unsigned int cpp,
+ unsigned int *pixels,
+ XpmColor *colors)
+{
+ char *s;
+ unsigned int x, y, h, offset;
+
+ if(height <= 1)
+ return;
+
+ h = height - 1;
+
+ offset = width * cpp + 1;
+
+ if(offset <= width || offset <= cpp)
+ return;
+
+ /* why trust h? */
+ for (y = 0; y < h; y++, dataptr++) {
+ s = *dataptr;
+ /* why trust width? */
+ for (x = 0; x < width; x++, pixels++) {
+ if(cpp > (data_size - (s - *dataptr)))
+ return;
+ strncpy(s, colors[*pixels].string, cpp); /* why trust pixel? */
+ s += cpp;
+ }
+ *s = '\0';
+ if(offset > data_size)
+ return;
+ *(dataptr + 1) = *dataptr + offset;
+ }
+ /* duplicate some code to avoid a test in the loop */
+ s = *dataptr;
+ /* why trust width? */
+ for (x = 0; x < width; x++, pixels++) {
+ if(cpp > data_size - (s - *dataptr))
+ return;
+ strncpy(s, colors[*pixels].string, cpp); /* why should we trust *pixel? */
+ s += cpp;
+ }
+ *s = '\0';
+}
+
+static void
+CountExtensions(
+ XpmExtension *ext,
+ unsigned int num,
+ unsigned int *ext_size,
+ unsigned int *ext_nlines)
+{
+ unsigned int x, y, a, size, nlines;
+ char **line;
+
+ size = 0;
+ nlines = 0;
+ for (x = 0; x < num; x++, ext++) {
+ /* 1 for the name */
+ nlines += ext->nlines + 1;
+ /* 8 = 7 (for "XPMEXT ") + 1 (for 0) */
+ size += strlen(ext->name) + 8;
+ a = ext->nlines;
+ for (y = 0, line = ext->lines; y < a; y++, line++)
+ size += strlen(*line) + 1;
+ }
+ /* 10 and 1 are for the ending "XPMENDEXT" */
+ *ext_size = size + 10;
+ *ext_nlines = nlines + 1;
+}
+
+static void
+CreateExtensions(
+ char **dataptr,
+ unsigned int data_size,
+ unsigned int offset,
+ XpmExtension *ext,
+ unsigned int num,
+ unsigned int ext_nlines)
+{
+ unsigned int x, y, a, b;
+ char **line;
+
+ *(dataptr + 1) = *dataptr + offset;
+ dataptr++;
+ a = 0;
+ for (x = 0; x < num; x++, ext++) {
+ snprintf(*dataptr, data_size, "XPMEXT %s", ext->name);
+ a++;
+ if (a < ext_nlines)
+ *(dataptr + 1) = *dataptr + strlen(ext->name) + 8;
+ dataptr++;
+ b = ext->nlines; /* can we trust these values? */
+ for (y = 0, line = ext->lines; y < b; y++, line++) {
+ strcpy(*dataptr, *line);
+ a++;
+ if (a < ext_nlines)
+ *(dataptr + 1) = *dataptr + strlen(*line) + 1;
+ dataptr++;
+ }
+ }
+ strcpy(*dataptr, "XPMENDEXT");
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-21 07:09:41 +0000