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motif.23530
openmotif-xpm.diff
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File openmotif-xpm.diff of Package motif.23530
Index: b/lib/Xm/XpmAttrib.c =================================================================== --- a/lib/Xm/XpmAttrib.c +++ b/lib/Xm/XpmAttrib.c @@ -43,7 +43,7 @@ #include "XpmI.h" /* 3.2 backward compatibility code */ -LFUNC(CreateOldColorTable, int, (XpmColor *ct, unsigned int ncolors, +LFUNC(CreateOldColorTable, int, (XpmColor *ct, int ncolors, XpmColor ***oldct)); LFUNC(FreeOldColorTable, void, (XpmColor **colorTable, unsigned int ncolors)); @@ -54,15 +54,12 @@ LFUNC(FreeOldColorTable, void, (XpmColor static int CreateOldColorTable(ct, ncolors, oldct) XpmColor *ct; - unsigned int ncolors; + int ncolors; XpmColor ***oldct; { XpmColor **colorTable, **color; unsigned int a; - if (ncolors >= UINT_MAX / sizeof(XpmColor *)) - return XpmNoMemory; - colorTable = (XpmColor **) XpmMalloc(ncolors * sizeof(XpmColor *)); if (!colorTable) { *oldct = NULL; Index: b/lib/Xm/XpmCrBufFrI.c =================================================================== --- a/lib/Xm/XpmCrBufFrI.c +++ b/lib/Xm/XpmCrBufFrI.c @@ -41,26 +41,22 @@ #endif -/* October 2004, source code review by Thomas Biege <thomas@suse.de> */ - #include "XpmI.h" -LFUNC(WriteColors, int, (char **dataptr, unsigned int *data_size, - unsigned int *used_size, XpmColor *colors, +LFUNC(WriteColors, int, (char **dataptr, size_t *data_size, + size_t *used_size, XpmColor *colors, unsigned int ncolors, unsigned int cpp)); -LFUNC(WritePixels, void, (char *dataptr, unsigned int data_size, - unsigned int *used_size, +LFUNC(WritePixels, void, (char *dataptr, size_t *used_size, unsigned int width, unsigned int height, unsigned int cpp, unsigned int *pixels, XpmColor *colors)); -LFUNC(WriteExtensions, void, (char *dataptr, unsigned int data_size, - unsigned int *used_size, +LFUNC(WriteExtensions, void, (char *dataptr, size_t *used_size, XpmExtension *ext, unsigned int num)); -LFUNC(ExtensionsSize, unsigned int, (XpmExtension *ext, unsigned int num)); -LFUNC(CommentsSize, int, (XpmInfo *info)); +LFUNC(ExtensionsSize, size_t, (XpmExtension *ext, unsigned int num)); +LFUNC(CommentsSize, size_t, (XpmInfo *info)); int XpmCreateBufferFromImage(display, buffer_return, image, shapeimage, attributes) @@ -117,10 +113,11 @@ XpmCreateBufferFromXpmImage(buffer_retur /* calculation variables */ int ErrorStatus; char buf[BUFSIZ]; - unsigned int cmts, extensions, ext_size = 0; - unsigned int l, cmt_size = 0; + unsigned int cmts, extensions; + size_t ext_size = 0; + size_t l, cmt_size = 0; char *ptr = NULL, *p; - unsigned int ptr_size, used_size, tmp; + size_t ptr_size, used_size, tmp; *buffer_return = NULL; @@ -142,13 +139,7 @@ XpmCreateBufferFromXpmImage(buffer_retur #ifdef VOID_SPRINTF used_size = strlen(buf); #endif - ptr_size = used_size + ext_size + cmt_size + 1; /* ptr_size can't be 0 */ - if(ptr_size <= used_size || - ptr_size <= ext_size || - ptr_size <= cmt_size) - { - return XpmNoMemory; - } + ptr_size = used_size + ext_size + cmt_size + 1; ptr = (char *) XpmMalloc(ptr_size); if (!ptr) return XpmNoMemory; @@ -159,7 +150,7 @@ XpmCreateBufferFromXpmImage(buffer_retur #ifndef VOID_SPRINTF used_size += #endif - snprintf(ptr + used_size, ptr_size-used_size, "/*%s*/\n", info->hints_cmt); + sprintf(ptr + used_size, "/*%s*/\n", info->hints_cmt); #ifdef VOID_SPRINTF used_size += strlen(info->hints_cmt) + 5; #endif @@ -177,7 +168,7 @@ XpmCreateBufferFromXpmImage(buffer_retur #ifndef VOID_SPRINTF l += #endif - snprintf(buf + l, sizeof(buf)-l, " %d %d", info->x_hotspot, info->y_hotspot); + sprintf(buf + l, " %d %d", info->x_hotspot, info->y_hotspot); #ifdef VOID_SPRINTF l = strlen(buf); #endif @@ -213,7 +204,7 @@ XpmCreateBufferFromXpmImage(buffer_retur #ifndef VOID_SPRINTF used_size += #endif - snprintf(ptr + used_size, ptr_size-used_size, "/*%s*/\n", info->colors_cmt); + snprintf(ptr + used_size, "/*%s*/\n", info->colors_cmt); #ifdef VOID_SPRINTF used_size += strlen(info->colors_cmt) + 5; #endif @@ -229,12 +220,7 @@ XpmCreateBufferFromXpmImage(buffer_retur * 4 = 1 (for '"') + 3 (for '",\n') * 1 = - 2 (because the last line does not end with ',\n') + 3 (for '};\n') */ - if(image->width > UINT_MAX / image->cpp || - (tmp = image->width * image->cpp + 4) <= 4 || - image->height > UINT_MAX / tmp || - (tmp = image->height * tmp + 1) <= 1 || - (ptr_size += tmp) <= tmp) - RETURN(XpmNoMemory); + ptr_size += image->height * (image->width * image->cpp + 4) + 1; p = (char *) XpmRealloc(ptr, ptr_size); if (!p) @@ -246,17 +232,17 @@ XpmCreateBufferFromXpmImage(buffer_retur #ifndef VOID_SPRINTF used_size += #endif - snprintf(ptr + used_size, ptr_size-used_size, "/*%s*/\n", info->pixels_cmt); + sprintf(ptr + used_size, "/*%s*/\n", info->pixels_cmt); #ifdef VOID_SPRINTF used_size += strlen(info->pixels_cmt) + 5; #endif } - WritePixels(ptr + used_size, ptr_size - used_size, &used_size, image->width, image->height, + WritePixels(ptr + used_size, &used_size, image->width, image->height, image->cpp, image->data, image->colorTable); /* print extensions */ if (extensions) - WriteExtensions(ptr + used_size, ptr_size-used_size, &used_size, + WriteExtensions(ptr + used_size, &used_size, info->extensions, info->nextensions); /* close the array */ @@ -271,13 +257,13 @@ XpmCreateBufferFromXpmImage(buffer_retur static int WriteColors(dataptr, data_size, used_size, colors, ncolors, cpp) char **dataptr; - unsigned int *data_size; - unsigned int *used_size; + size_t *data_size; + size_t *used_size; XpmColor *colors; unsigned int ncolors; unsigned int cpp; { - char buf[BUFSIZ] = {0}; + char buf[BUFSIZ]; unsigned int a, key, l; char *s, *s2; char **defaults; @@ -287,8 +273,6 @@ WriteColors(dataptr, data_size, used_siz defaults = (char **) colors; s = buf + 1; - if(cpp > (sizeof(buf) - (s-buf))) - return(XpmNoMemory); strncpy(s, *defaults++, cpp); s += cpp; @@ -297,24 +281,14 @@ WriteColors(dataptr, data_size, used_siz #ifndef VOID_SPRINTF s += #endif - /* assume C99 compliance */ - snprintf(s, sizeof(buf) - (s-buf), "\t%s %s", xpmColorKeys[key - 1], s2); + sprintf(s, "\t%s %s", xpmColorKeys[key - 1], s2); #ifdef VOID_SPRINTF s += strlen(s); #endif - /* now let's check if s points out-of-bounds */ - if((s-buf) > sizeof(buf)) - return(XpmNoMemory); } } - if(sizeof(buf) - (s-buf) < 4) - return(XpmNoMemory); strcpy(s, "\",\n"); l = s + 3 - buf; - if( *data_size >= UINT_MAX-l || - *data_size + l <= *used_size || - (*data_size + l - *used_size) <= strlen(buf)) - return(XpmNoMemory); s = (char *) XpmRealloc(*dataptr, *data_size + l); if (!s) return (XpmNoMemory); @@ -327,10 +301,9 @@ WriteColors(dataptr, data_size, used_siz } static void -WritePixels(dataptr, data_size, used_size, width, height, cpp, pixels, colors) +WritePixels(dataptr, used_size, width, height, cpp, pixels, colors) char *dataptr; - unsigned int data_size; - unsigned int *used_size; + size_t *used_size; unsigned int width; unsigned int height; unsigned int cpp; @@ -340,65 +313,52 @@ WritePixels(dataptr, data_size, used_siz char *s = dataptr; unsigned int x, y, h; - if(height <= 1) - return; - h = height - 1; for (y = 0; y < h; y++) { *s++ = '"'; for (x = 0; x < width; x++, pixels++) { - if(cpp >= (data_size - (s-dataptr))) - return; - strncpy(s, colors[*pixels].string, cpp); /* how can we trust *pixels? :-\ */ + strncpy(s, colors[*pixels].string, cpp); s += cpp; } - if((data_size - (s-dataptr)) < 4) - return; strcpy(s, "\",\n"); s += 3; } /* duplicate some code to avoid a test in the loop */ *s++ = '"'; for (x = 0; x < width; x++, pixels++) { - if(cpp >= (data_size - (s-dataptr))) - return; - strncpy(s, colors[*pixels].string, cpp); /* how can we trust *pixels? */ + strncpy(s, colors[*pixels].string, cpp); s += cpp; } *s++ = '"'; *used_size += s - dataptr; } -static unsigned int +static size_t ExtensionsSize(ext, num) XpmExtension *ext; unsigned int num; { - unsigned int x, y, a, size; + unsigned int x, y, a; + size_t size; char **line; size = 0; - if(num == 0) - return(0); /* ok? */ for (x = 0; x < num; x++, ext++) { /* 11 = 10 (for ',\n"XPMEXT ') + 1 (for '"') */ size += strlen(ext->name) + 11; - a = ext->nlines; /* how can we trust ext->nlines to be not out-of-bounds? */ + a = ext->nlines; for (y = 0, line = ext->lines; y < a; y++, line++) /* 4 = 3 (for ',\n"') + 1 (for '"') */ size += strlen(*line) + 4; } /* 13 is for ',\n"XPMENDEXT"' */ - if(size > UINT_MAX - 13) /* unlikely */ - return(0); return size + 13; } static void -WriteExtensions(dataptr, data_size, used_size, ext, num) +WriteExtensions(dataptr, used_size, ext, num) char *dataptr; - unsigned int data_size; - unsigned int *used_size; + size_t *used_size; XpmExtension *ext; unsigned int num; { @@ -410,7 +370,7 @@ WriteExtensions(dataptr, data_size, used #ifndef VOID_SPRINTF s += 11 + #endif - snprintf(s, data_size - (s-dataptr), ",\n\"XPMEXT %s\"", ext->name); + sprintf(s, ",\n\"XPMEXT %s\"", ext->name); #ifdef VOID_SPRINTF s += strlen(ext->name) + 11; #endif @@ -419,24 +379,23 @@ WriteExtensions(dataptr, data_size, used #ifndef VOID_SPRINTF s += 4 + #endif - snprintf(s, data_size - (s-dataptr), ",\n\"%s\"", *line); + sprintf(s, ",\n\"%s\"", *line); #ifdef VOID_SPRINTF s += strlen(*line) + 4; #endif } } - strncpy(s, ",\n\"XPMENDEXT\"", data_size - (s-dataptr)-1); + strcpy(s, ",\n\"XPMENDEXT\""); *used_size += s - dataptr + 13; } -static int +static size_t CommentsSize(info) XpmInfo *info; { - int size = 0; + size_t size = 0; /* 5 = 2 (for "/_*") + 3 (for "*_/\n") */ - /* wrap possible but *very* unlikely */ if (info->hints_cmt) size += 5 + strlen(info->hints_cmt); Index: b/lib/Xm/XpmCrDatFrI.c =================================================================== --- a/lib/Xm/XpmCrDatFrI.c +++ b/lib/Xm/XpmCrDatFrI.c @@ -38,16 +38,13 @@ #endif -/* October 2004, source code review by Thomas Biege <thomas@suse.de> */ - #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, +LFUNC(CreatePixels, void, (char **dataptr, unsigned int width, unsigned int height, unsigned int cpp, unsigned int *pixels, XpmColor *colors)); @@ -55,8 +52,7 @@ LFUNC(CountExtensions, void, (XpmExtensi unsigned int *ext_size, unsigned int *ext_nlines)); -LFUNC(CreateExtensions, void, (char **dataptr, unsigned int data_size, - unsigned int offset, +LFUNC(CreateExtensions, void, (char **dataptr, unsigned int offset, XpmExtension *ext, unsigned int num, unsigned int ext_nlines)); @@ -137,12 +133,7 @@ XpmCreateDataFromXpmImage(data_return, i * is the hints line + the color table lines */ header_nlines = 1 + image->ncolors; - 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 *)); if (!header) return (XpmNoMemory); @@ -187,22 +178,8 @@ XpmCreateDataFromXpmImage(data_return, i /* 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_size = header_size + (image->height + ext_nlines) * sizeof(char *) + + image->height * offset + ext_size; data = (char **) XpmMalloc(data_size); if (!data) @@ -210,10 +187,8 @@ XpmCreateDataFromXpmImage(data_return, i 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++) { + for (l = 0, sptr = data, sptr2 = header; l <= n; l++, sptr++, sptr2++) { strcpy(*sptr, *sptr2); *(sptr + 1) = *sptr + strlen(*sptr2) + 1; } @@ -222,13 +197,12 @@ XpmCreateDataFromXpmImage(data_return, i 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, + CreatePixels(data + 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, + CreateExtensions(data + header_nlines + image->height - 1, offset, info->extensions, info->nextensions, ext_nlines); @@ -250,31 +224,23 @@ CreateColors(dataptr, data_size, colors, 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); + sprintf(s, "\t%s %s", xpmColorKeys[key - 1], s2); #ifdef VOID_SPRINTF s += strlen(s); #endif } } - /* what about using strdup()? */ l = s - buf + 1; s = (char *) XpmMalloc(l); if (!s) @@ -286,9 +252,8 @@ CreateColors(dataptr, data_size, colors, } static void -CreatePixels(dataptr, data_size, width, height, cpp, pixels, colors) +CreatePixels(dataptr, width, height, cpp, pixels, colors) char **dataptr; - unsigned int data_size; unsigned int width; unsigned int height; unsigned int cpp; @@ -298,38 +263,21 @@ CreatePixels(dataptr, data_size, width, 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? */ + strncpy(s, colors[*pixels].string, cpp); 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? */ + strncpy(s, colors[*pixels].string, cpp); s += cpp; } *s = '\0'; @@ -362,9 +310,8 @@ CountExtensions(ext, num, ext_size, ext_ } static void -CreateExtensions(dataptr, data_size, offset, ext, num, ext_nlines) +CreateExtensions(dataptr, offset, ext, num, ext_nlines) char **dataptr; - unsigned int data_size; unsigned int offset; XpmExtension *ext; unsigned int num; @@ -377,12 +324,12 @@ CreateExtensions(dataptr, data_size, off dataptr++; a = 0; for (x = 0; x < num; x++, ext++) { - snprintf(*dataptr, data_size, "XPMEXT %s", ext->name); + sprintf(*dataptr, "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? */ + b = ext->nlines; for (y = 0, line = ext->lines; y < b; y++, line++) { strcpy(*dataptr, *line); a++; Index: b/lib/Xm/XpmI.h =================================================================== --- a/lib/Xm/XpmI.h +++ b/lib/Xm/XpmI.h @@ -187,9 +187,9 @@ typedef struct { unsigned int type; union { FILE *file; - char **data; + unsigned char **data; } stream; - char *cptr; + unsigned char *cptr; unsigned int line; int CommentLength; char Comment[XPMMAXCMTLEN]; @@ -279,9 +279,9 @@ typedef struct _xpmHashAtom { } *xpmHashAtom; typedef struct { - unsigned int size; - unsigned int limit; - unsigned int used; + int size; + int limit; + int used; xpmHashAtom *atomTable; } xpmHashTable; Index: b/lib/Xm/XpmRdFToI.c =================================================================== --- a/lib/Xm/XpmRdFToI.c +++ b/lib/Xm/XpmRdFToI.c @@ -38,8 +38,6 @@ #endif -/* October 2004, source code review by Thomas Biege <thomas@suse.de> */ - #include "XpmI.h" #include <sys/stat.h> #include <sys/param.h> @@ -126,22 +124,37 @@ XpmReadFileToXpmImage(filename, image, i return (ErrorStatus); } + +/* Quote filename and prepend prefix. */ +static char *quote_file(prefix, filename, len) + const char *prefix, *filename; + size_t len; +{ + char *buf = XpmMalloc(strlen(prefix) + len * 2 + 1); + char *p = buf, *q; + + if (!buf) + return 0; + strcpy(p, prefix); + p += strlen(p); + for (q = filename; *q; q++) { + *p++ = '\\'; + *p++ = *q; + } + return buf; +} + + /* * open the given file to be read as an xpmData which is returned. */ -#ifndef NO_ZPIPE - FILE *Xpms_popen(char *cmd, const char *type); -#else -# define Xpms_popen popen -#endif - static int OpenReadFile(filename, mdata) char *filename; xpmData *mdata; { #ifndef NO_ZPIPE - char *compressfile, buf[(2*MAXPATHLEN) + 1]; + char *compressfile, *buf; # ifdef STAT_ZFILE struct stat status; # endif @@ -153,20 +166,24 @@ OpenReadFile(filename, mdata) } else { #ifndef NO_ZPIPE size_t len = strlen(filename); - - if(len == 0 || - filename[len-1] == '/') - return(XpmOpenFailed); if ((len > 2) && !strcmp(".Z", filename + (len - 2))) { mdata->type = XPMPIPE; - snprintf(buf, sizeof(buf), "uncompress -c \"%s\"", filename); - if (!(mdata->stream.file = Xpms_popen(buf, "r"))) + buf = quote_file("uncompress -c ", filename, len); + if (!buf) + return (XpmNoMemory); + mdata->stream.file = popen(buf, "r"); + XpmFree(buf); + if (!mdata->stream.file) return (XpmOpenFailed); } else if ((len > 3) && !strcmp(".gz", filename + (len - 3))) { mdata->type = XPMPIPE; - snprintf(buf, sizeof(buf), "gunzip -qc \"%s\"", filename); - if (!(mdata->stream.file = Xpms_popen(buf, "r"))) + buf = quote_file("gunzip -qc ", filename, len); + if (!buf) + return (XpmNoMemory); + mdata->stream.file = popen(buf, "r"); + XpmFree(buf); + if (!mdata->stream.file) return (XpmOpenFailed); } else { @@ -174,30 +191,34 @@ OpenReadFile(filename, mdata) if (!(compressfile = (char *) XpmMalloc(len + 4))) return (XpmNoMemory); - snprintf(compressfile, len+4, "%s.Z", filename); + sprintf(compressfile, "%s.Z", filename); if (!stat(compressfile, &status)) { - snprintf(buf, sizeof(buf), "uncompress -c \"%s\"", compressfile); - if (!(mdata->stream.file = Xpms_popen(buf, "r"))) { - XpmFree(compressfile); + buf = quote_file("uncompress -c ", compressfile, len + 2); + XpmFree(compressfile); + if (!buf) + return (XpmNoMemory); + mdata->stream.file = popen(buf, "r"); + XpmFree(buf); + if (!mdata->stream.file) return (XpmOpenFailed); - } mdata->type = XPMPIPE; } else { - snprintf(compressfile, len+4, "%s.gz", filename); + sprintf(compressfile, "%s.gz", filename); if (!stat(compressfile, &status)) { - snprintf(buf, sizeof(buf), "gunzip -c \"%s\"", compressfile); - if (!(mdata->stream.file = Xpms_popen(buf, "r"))) { - XpmFree(compressfile); + buf = quote_file("gunzip -c ", compressfile, len + 3); + XpmFree(compressfile); + if (!buf) + return (XpmNoMemory); + mdata->stream.file = popen(buf, "r"); + XpmFree(buf); + if (!mdata->stream.file) return (XpmOpenFailed); - } mdata->type = XPMPIPE; } else { + XpmFree(compressfile); # endif #endif if (!(mdata->stream.file = fopen(filename, "r"))) { -#if !defined(NO_ZPIPE) && defined(STAT_ZFILE) - XpmFree(compressfile); -#endif return (XpmOpenFailed); } mdata->type = XPMFILE; @@ -205,7 +226,6 @@ OpenReadFile(filename, mdata) # ifdef STAT_ZFILE } } - XpmFree(compressfile); # endif } #endif @@ -228,7 +248,7 @@ xpmDataClose(mdata) break; #ifndef NO_ZPIPE case XPMPIPE: - fclose(mdata->stream.file); + pclose(mdata->stream.file); break; #endif } Index: b/lib/Xm/XpmWrFFrI.c =================================================================== --- a/lib/Xm/XpmWrFFrI.c +++ b/lib/Xm/XpmWrFFrI.c @@ -38,8 +38,6 @@ #endif -/* October 2004, source code review by Thomas Biege <thomas@suse.de> */ - #include "XpmI.h" #if !defined(NO_ZPIPE) && defined(WIN32) # define popen _popen @@ -100,7 +98,7 @@ XpmWriteFileFromXpmImage(filename, image XpmInfo *info; { xpmData mdata; - char *name, *dot, *s, new_name[BUFSIZ] = {0}; + char *name, *dot, *s, new_name[BUFSIZ]; int ErrorStatus; /* open file to write */ @@ -247,10 +245,13 @@ WritePixels(file, width, height, cpp, pi char *s, *p, *buf; unsigned int x, y, h; + if (height == 0) + return XpmFileInvalid; + h = height - 1; - if (cpp != 0 && width >= (UINT_MAX - 3)/cpp) + if (cpp != 0 && width >= ((size_t)-1 - 3)/cpp) return XpmNoMemory; - p = buf = (char *) XpmMalloc(width * cpp + 3); + p = buf = (char *) XpmMalloc((size_t)width * cpp + 3); if (!buf) return (XpmNoMemory); *buf = '"'; @@ -297,21 +298,35 @@ WriteExtensions(file, ext, num) fprintf(file, ",\n\"XPMENDEXT\""); } +/* Quote filename and prepend prefix. */ +static char *quote_file(prefix, filename, len) + const char *prefix, *filename; + size_t len; +{ + char *buf = XpmMalloc(strlen(prefix) + len * 2 + 1); + char *p = buf, *q; + + if (!buf) + return 0; + strcpy(p, prefix); + p += strlen(p); + for (q = filename; *q; q++) { + *p++ = '\\'; + *p++ = *q; + } + return buf; +} + /* * open the given file to be written as an xpmData which is returned */ -#ifndef NO_ZPIPE - FILE *Xpms_popen(char *cmd, const char *type); -#else -# define Xpms_popen popen -#endif static int OpenWriteFile(filename, mdata) char *filename; xpmData *mdata; { #ifndef NO_ZPIPE - char buf[BUFSIZ]; + char *buf; #endif @@ -321,19 +336,23 @@ OpenWriteFile(filename, mdata) } else { #ifndef NO_ZPIPE size_t len = strlen(filename); - - if(len == 0) - return(XpmOpenFailed); - if (len > 2 && !strcmp(".Z", filename + (len - 2))) { - snprintf(buf, sizeof(buf), "compress > \"%s\"", filename); - if (!(mdata->stream.file = Xpms_popen(buf, "w"))) + buf = quote_file("compress > ", filename, len); + if (!buf) + return XpmNoMemory; + mdata->stream.file = popen(buf, "w"); + XpmFree(buf); + if (!mdata->stream.file) return (XpmOpenFailed); mdata->type = XPMPIPE; } else if (len > 3 && !strcmp(".gz", filename + (len - 3))) { - snprintf(buf, sizeof(buf), "gzip -q > \"%s\"", filename); - if (!(mdata->stream.file = Xpms_popen(buf, "w"))) + buf = quote_file("gzip -q > ", filename, len); + if (!buf) + return XpmNoMemory; + mdata->stream.file = popen(buf, "w"); + XpmFree(buf); + if (!mdata->stream.file) return (XpmOpenFailed); mdata->type = XPMPIPE; @@ -364,7 +383,7 @@ xpmDataClose(mdata) break; #ifndef NO_ZPIPE case XPMPIPE: - fclose(mdata->stream.file); + pclose(mdata->stream.file); break; #endif } Index: b/lib/Xm/Xpmcreate.c =================================================================== --- a/lib/Xm/Xpmcreate.c +++ b/lib/Xm/Xpmcreate.c @@ -44,8 +44,6 @@ #endif -/* October 2004, source code review by Thomas Biege <thomas@suse.de> */ - #include "XpmI.h" #include <ctype.h> @@ -567,7 +565,7 @@ CreateColors(display, attributes, colors */ } else { #endif - unsigned int i; + int i; ncols = visual->map_entries; cols = (XColor *) XpmCalloc(ncols, sizeof(XColor)); @@ -806,9 +804,6 @@ XpmCreateImageFromXpmImage(display, imag ErrorStatus = XpmSuccess; - if (image->ncolors >= UINT_MAX / sizeof(Pixel)) - return (XpmNoMemory); - /* malloc pixels index tables */ image_pixels = (Pixel *) XpmMalloc(sizeof(Pixel) * image->ncolors); if (!image_pixels) @@ -952,12 +947,6 @@ CreateXImage(display, visual, depth, for return (XpmNoMemory); #ifndef FOR_MSW - if (height != 0 && (*image_return)->bytes_per_line >= INT_MAX / height) { - XDestroyImage(*image_return); - return (XpmNoMemory); - } - if((*image_return)->bytes_per_line == 0 || height == 0) - return XpmNoMemory; /* now that bytes_per_line must have been set properly alloc data */ (*image_return)->data = (char *) XpmMalloc((*image_return)->bytes_per_line * height); @@ -986,7 +975,7 @@ CreateXImage(display, visual, depth, for LFUNC(_putbits, void, (register char *src, int dstoffset, register int numbits, register char *dst)); -LFUNC(_XReverse_Bytes, int, (register unsigned char *bpt, register unsigned int nb)); +LFUNC(_XReverse_Bytes, int, (register unsigned char *bpt, register int nb)); static unsigned char Const _reverse_byte[0x100] = { 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0, @@ -1026,12 +1015,12 @@ static unsigned char Const _reverse_byte static int _XReverse_Bytes(bpt, nb) register unsigned char *bpt; - register unsigned int nb; + register int nb; { do { *bpt = _reverse_byte[*bpt]; bpt++; - } while (--nb > 0); /* is nb user-controled? */ + } while (--nb > 0); return 0; } @@ -1180,8 +1169,8 @@ PutImagePixels(image, width, height, pix depth = image->depth; if (depth == 1) { ibu = image->bitmap_unit; - for (y = 0; y < height; y++) /* how can we trust height */ - for (x = 0; x < width; x++, iptr++) { /* how can we trust width */ + for (y = 0; y < height; y++) + for (x = 0; x < width; x++, iptr++) { pixel = pixels[*iptr]; for (i = 0, px = pixel; i < sizeof(unsigned long); i++, px >>= 8) @@ -1298,7 +1287,7 @@ PutImagePixels32(image, width, height, p #else /* WITHOUT_SPEEDUPS */ - unsigned int bpl = image->bytes_per_line; + int bpl = image->bytes_per_line; unsigned char *data_ptr, *max_data; data = (unsigned char *) image->data; @@ -1394,7 +1383,7 @@ PutImagePixels16(image, width, height, p Pixel pixel; - unsigned int bpl = image->bytes_per_line; + int bpl = image->bytes_per_line; unsigned char *data_ptr, *max_data; data = (unsigned char *) image->data; @@ -1461,7 +1450,7 @@ PutImagePixels8(image, width, height, pi #else /* WITHOUT_SPEEDUPS */ - unsigned int bpl = image->bytes_per_line; + int bpl = image->bytes_per_line; char *data_ptr, *max_data; data = image->data; @@ -1679,9 +1668,6 @@ PutPixel1(ximage, x, y, pixel) Pixel px; int nbytes; - if(x < 0 || y < 0) - return 0; - for (i=0, px=pixel; i<sizeof(unsigned long); i++, px>>=8) ((unsigned char *)&pixel)[i] = px; src = &ximage->data[XYINDEX(x, y, ximage)]; @@ -1713,10 +1699,7 @@ PutPixel(ximage, x, y, pixel) register int i; register char *data; Pixel px; - unsigned int nbytes, ibpp; - - if(x < 0 || y < 0) - return 0; + int nbytes, ibpp; ibpp = ximage->bits_per_pixel; if (ximage->depth == 4) @@ -1749,9 +1732,6 @@ PutPixel32(ximage, x, y, pixel) { unsigned char *addr; - if(x < 0 || y < 0) - return 0; - addr = &((unsigned char *)ximage->data) [ZINDEX32(x, y, ximage)]; *((unsigned long *)addr) = pixel; return 1; @@ -1766,9 +1746,6 @@ PutPixel32MSB(ximage, x, y, pixel) { unsigned char *addr; - if(x < 0 || y < 0) - return 0; - addr = &((unsigned char *)ximage->data) [ZINDEX32(x, y, ximage)]; addr[0] = pixel >> 24; addr[1] = pixel >> 16; @@ -1786,9 +1763,6 @@ PutPixel32LSB(ximage, x, y, pixel) { unsigned char *addr; - if(x < 0 || y < 0) - return 0; - addr = &((unsigned char *)ximage->data) [ZINDEX32(x, y, ximage)]; addr[3] = pixel >> 24; addr[2] = pixel >> 16; @@ -1806,9 +1780,6 @@ PutPixel16MSB(ximage, x, y, pixel) { unsigned char *addr; - if(x < 0 || y < 0) - return 0; - addr = &((unsigned char *)ximage->data) [ZINDEX16(x, y, ximage)]; addr[0] = pixel >> 8; addr[1] = pixel; @@ -1824,9 +1795,6 @@ PutPixel16LSB(ximage, x, y, pixel) { unsigned char *addr; - if(x < 0 || y < 0) - return 0; - addr = &((unsigned char *)ximage->data) [ZINDEX16(x, y, ximage)]; addr[1] = pixel >> 8; addr[0] = pixel; @@ -1840,9 +1808,6 @@ PutPixel8(ximage, x, y, pixel) int y; unsigned long pixel; { - if(x < 0 || y < 0) - return 0; - ximage->data[ZINDEX8(x, y, ximage)] = pixel; return 1; } @@ -1854,9 +1819,6 @@ PutPixel1MSB(ximage, x, y, pixel) int y; unsigned long pixel; { - if(x < 0 || y < 0) - return 0; - if (pixel & 1) ximage->data[ZINDEX1(x, y, ximage)] |= 0x80 >> (x & 7); else @@ -1871,9 +1833,6 @@ PutPixel1LSB(ximage, x, y, pixel) int y; unsigned long pixel; { - if(x < 0 || y < 0) - return 0; - if (pixel & 1) ximage->data[ZINDEX1(x, y, ximage)] |= 1 << (x & 7); else @@ -2033,9 +1992,6 @@ xpmParseDataAndCreate(display, data, ima xpmGetCmt(data, &colors_cmt); /* malloc pixels index tables */ - if (ncolors >= UINT_MAX / sizeof(Pixel)) - RETURN (XpmNoMemory); - image_pixels = (Pixel *) XpmMalloc(sizeof(Pixel) * ncolors); if (!image_pixels) RETURN(XpmNoMemory); @@ -2251,9 +2207,6 @@ ParseAndPutPixels(dc, data, width, heigh { unsigned short colidx[256]; - if (ncolors > 256) - return (XpmFileInvalid); - bzero((char *)colidx, 256 * sizeof(short)); for (a = 0; a < ncolors; a++) colidx[(unsigned char)colorTable[a].string[0]] = a + 1; @@ -2294,11 +2247,11 @@ if (cidx[f]) XpmFree(cidx[f]);} /* array of pointers malloced by need */ unsigned short *cidx[256]; - unsigned int char1; + int char1; bzero((char *)cidx, 256 * sizeof(unsigned short *)); /* init */ for (a = 0; a < ncolors; a++) { - char1 = (unsigned char) colorTable[a].string[0]; + char1 = colorTable[a].string[0]; if (cidx[char1] == NULL) { /* get new memory */ cidx[char1] = (unsigned short *) XpmCalloc(256, sizeof(unsigned short)); @@ -2352,9 +2305,6 @@ if (cidx[f]) XpmFree(cidx[f]);} char *s; char buf[BUFSIZ]; - if (cpp >= sizeof(buf)) - return (XpmFileInvalid); - buf[cpp] = '\0'; if (USE_HASHTABLE) { xpmHashAtom *slot; Index: b/lib/Xm/Xpmdata.c =================================================================== --- a/lib/Xm/Xpmdata.c +++ b/lib/Xm/Xpmdata.c @@ -33,8 +33,6 @@ * Developed by Arnaud Le Hors * \*****************************************************************************/ -/* October 2004, source code review by Thomas Biege <thomas@suse.de> */ - /* Official version number */ static char *RCS_Version = "$XpmVersion: 3.4i $"; @@ -281,7 +279,7 @@ xpmNextWord(mdata, buf, buflen) } ungetc(c, file); } - return (n); /* this returns bytes read + 1 */ + return (n); } /* @@ -299,7 +297,7 @@ xpmGetString(mdata, sptr, l) if (!mdata->type || mdata->type == XPMBUFFER) { if (mdata->cptr) { - char *start = mdata->cptr; + unsigned char *start = mdata->cptr; while ((c = *mdata->cptr) && c != mdata->Eos) mdata->cptr++; n = mdata->cptr - start + 1; @@ -378,7 +376,7 @@ xpmGetCmt(mdata, cmt) { if (!mdata->type) *cmt = NULL; - else if (mdata->CommentLength != 0 && mdata->CommentLength < UINT_MAX - 1) { + else if (mdata->CommentLength) { if( (*cmt = (char *) XpmMalloc(mdata->CommentLength + 1)) == NULL) return XpmNoMemory; strncpy(*cmt, mdata->Comment, mdata->CommentLength); @@ -408,7 +406,7 @@ int xpmParseHeader(mdata) xpmData *mdata; { - char buf[BUFSIZ+1] = {0}; + char buf[BUFSIZ+1]; int l, n = 0; if (mdata->type) { Index: b/lib/Xm/Xpmhashtab.c =================================================================== --- a/lib/Xm/Xpmhashtab.c +++ b/lib/Xm/Xpmhashtab.c @@ -141,17 +141,17 @@ HashTableGrows(table) xpmHashTable *table; { xpmHashAtom *atomTable = table->atomTable; - unsigned int size = table->size; + int size = table->size; xpmHashAtom *t, *p; int i; - unsigned int oldSize = size; + int oldSize = size; t = atomTable; HASH_TABLE_GROWS - table->size = size; - table->limit = size / 3; - if (size >= UINT_MAX / sizeof(*atomTable)) + if (size <= 0) return (XpmNoMemory); + table->size = size; + table->limit = size / 3; atomTable = (xpmHashAtom *) XpmMalloc(size * sizeof(*atomTable)); if (!atomTable) return (XpmNoMemory); @@ -212,8 +212,6 @@ xpmHashTableInit(table) table->size = INITIAL_HASH_SIZE; table->limit = table->size / 3; table->used = 0; - if (table->size >= UINT_MAX / sizeof(*atomTable)) - return (XpmNoMemory); atomTable = (xpmHashAtom *) XpmMalloc(table->size * sizeof(*atomTable)); if (!atomTable) return (XpmNoMemory); Index: b/lib/Xm/Xpmparse.c =================================================================== --- a/lib/Xm/Xpmparse.c +++ b/lib/Xm/Xpmparse.c @@ -44,29 +44,8 @@ #endif -/* October 2004, source code review by Thomas Biege <thomas@suse.de> */ - #include "XpmI.h" #include <ctype.h> -#include <string.h> - -#ifdef HAS_STRLCAT -# define STRLCAT(dst, src, dstsize) do { \ - if (strlcat(dst, src, dstsize) >= (dstsize)) \ - return (XpmFileInvalid); } while(0) -# define STRLCPY(dst, src, dstsize) do { \ - if (strlcpy(dst, src, dstsize) >= (dstsize)) \ - return (XpmFileInvalid); } while(0) -#else -# define STRLCAT(dst, src, dstsize) do { \ - if ((strlen(dst) + strlen(src)) < (dstsize)) \ - strcat(dst, src); \ - else return (XpmFileInvalid); } while(0) -# define STRLCPY(dst, src, dstsize) do { \ - if (strlen(src) < (dstsize)) \ - strcpy(dst, src); \ - else return (XpmFileInvalid); } while(0) -#endif LFUNC(ParsePixels, int, (xpmData *data, unsigned int width, unsigned int height, unsigned int ncolors, @@ -236,7 +215,7 @@ xpmParseValues(data, width, height, ncol unsigned int *extensions; { unsigned int l; - char buf[BUFSIZ + 1]; + char buf[BUFSIZ]; if (!data->format) { /* XPM 2 or 3 */ @@ -334,6 +313,17 @@ xpmParseValues(data, width, height, ncol *hotspot = 0; *extensions = 0; } + + /* Do some plausibility checks. */ + if (*width == 0 || *height == 0 || *ncolors == 0 || *cpp == 0) + return XpmFileInvalid; + if (*cpp > 8) + return XpmFileInvalid; + if (*width > (INT_MAX / 8 + 1) / *height) + return XpmFileInvalid; + if (*ncolors > (INT_MAX / 8 + 1) / (*width * *height)) + return XpmFileInvalid; + return (XpmSuccess); } @@ -345,10 +335,10 @@ xpmParseColors(data, ncolors, cpp, color XpmColor **colorTablePtr; xpmHashTable *hashtable; { - unsigned int key, l, a, b, len; + unsigned int key, l, a, b; unsigned int curkey; /* current color key */ unsigned int lastwaskey; /* key read */ - char buf[BUFSIZ + 1]; + char buf[BUFSIZ]; char curbuf[BUFSIZ]; /* current buffer */ char **sptr, *s; XpmColor *color; @@ -356,8 +346,6 @@ xpmParseColors(data, ncolors, cpp, color char **defaults; int ErrorStatus; - if (ncolors >= UINT_MAX / sizeof(XpmColor)) - return (XpmNoMemory); colorTable = (XpmColor *) XpmCalloc(ncolors, sizeof(XpmColor)); if (!colorTable) return (XpmNoMemory); @@ -369,10 +357,6 @@ xpmParseColors(data, ncolors, cpp, color /* * read pixel value */ - if (cpp >= UINT_MAX - 1) { - xpmFreeColorTable(colorTable, ncolors); - return (XpmNoMemory); - } color->string = (char *) XpmMalloc(cpp + 1); if (!color->string) { xpmFreeColorTable(colorTable, ncolors); @@ -410,14 +394,13 @@ xpmParseColors(data, ncolors, cpp, color } if (!lastwaskey && key < NKEYS) { /* open new key */ if (curkey) { /* flush string */ - len = strlen(curbuf) + 1; - s = (char *) XpmMalloc(len); + s = (char *) XpmMalloc(strlen(curbuf) + 1); if (!s) { xpmFreeColorTable(colorTable, ncolors); return (XpmNoMemory); } defaults[curkey] = s; - memcpy(s, curbuf, len); + strcpy(s, curbuf); } curkey = key + 1; /* set new key */ *curbuf = '\0'; /* reset curbuf */ @@ -427,10 +410,14 @@ xpmParseColors(data, ncolors, cpp, color xpmFreeColorTable(colorTable, ncolors); return (XpmFileInvalid); } + if (strlen(curbuf) + l + 2 >= sizeof(curbuf)) { + xpmFreeColorTable(colorTable, ncolors); + return (XpmNoMemory); + } if (!lastwaskey) - STRLCAT(curbuf, " ", sizeof(curbuf));/* append space */ + strcat(curbuf, " "); /* append space */ buf[l] = '\0'; - STRLCAT(curbuf, buf, sizeof(curbuf)); /* append buf */ + strcat(curbuf, buf);/* append buf */ lastwaskey = 0; } } @@ -438,13 +425,12 @@ xpmParseColors(data, ncolors, cpp, color xpmFreeColorTable(colorTable, ncolors); return (XpmFileInvalid); } - len = strlen(curbuf) + 1; /* integer overflow just theoretically possible */ - s = defaults[curkey] = (char *) XpmMalloc(len); + s = defaults[curkey] = (char *) XpmMalloc(strlen(curbuf) + 1); if (!s) { xpmFreeColorTable(colorTable, ncolors); return (XpmNoMemory); } - memcpy(s, curbuf, len); + strcpy(s, curbuf); } } else { /* XPM 1 */ /* get to the beginning of the first string */ @@ -457,10 +443,6 @@ xpmParseColors(data, ncolors, cpp, color /* * read pixel value */ - if (cpp >= UINT_MAX - 1) { - xpmFreeColorTable(colorTable, ncolors); - return (XpmNoMemory); - } color->string = (char *) XpmMalloc(cpp + 1); if (!color->string) { xpmFreeColorTable(colorTable, ncolors); @@ -488,21 +470,24 @@ xpmParseColors(data, ncolors, cpp, color xpmNextString(data); /* get to the next string */ *curbuf = '\0'; /* init curbuf */ while ((l = xpmNextWord(data, buf, BUFSIZ))) { + if (strlen(curbuf) + l + 2 >= sizeof(curbuf)) { + xpmFreeColorTable(colorTable, ncolors); + return (XpmNoMemory); + } if (*curbuf != '\0') - STRLCAT(curbuf, " ", sizeof(curbuf));/* append space */ + strcat(curbuf, " ");/* append space */ buf[l] = '\0'; - STRLCAT(curbuf, buf, sizeof(curbuf)); /* append buf */ + strcat(curbuf, buf); /* append buf */ } - len = strlen(curbuf) + 1; - s = (char *) XpmMalloc(len); + s = (char *) XpmMalloc(strlen(curbuf) + 1); if (!s) { xpmFreeColorTable(colorTable, ncolors); return (XpmNoMemory); } - memcpy(s, curbuf, len); + strcpy(s, curbuf); color->c_color = s; *curbuf = '\0'; /* reset curbuf */ - if (a < ncolors - 1) /* can we trust ncolors -> leave data's bounds */ + if (a < ncolors - 1) xpmNextString(data); /* get to the next string */ } } @@ -521,12 +506,9 @@ ParsePixels(data, width, height, ncolors xpmHashTable *hashtable; unsigned int **pixels; { - unsigned int *iptr, *iptr2 = NULL; /* found by Egbert Eich */ + unsigned int *iptr, *iptr2; unsigned int a, x, y; - if ((height > 0 && width >= UINT_MAX / height) || - width * height >= UINT_MAX / sizeof(unsigned int)) - return XpmNoMemory; #ifndef FOR_MSW iptr2 = (unsigned int *) XpmMalloc(sizeof(unsigned int) * width * height); #else @@ -550,11 +532,6 @@ ParsePixels(data, width, height, ncolors { unsigned short colidx[256]; - if (ncolors > 256) { - XpmFree(iptr2); /* found by Egbert Eich */ - return (XpmFileInvalid); - } - bzero((char *)colidx, 256 * sizeof(short)); for (a = 0; a < ncolors; a++) colidx[(unsigned char)colorTable[a].string[0]] = a + 1; @@ -589,11 +566,11 @@ do \ /* array of pointers malloced by need */ unsigned short *cidx[256]; - unsigned int char1; + int char1; bzero((char *)cidx, 256 * sizeof(unsigned short *)); /* init */ for (a = 0; a < ncolors; a++) { - char1 = (unsigned char) colorTable[a].string[0]; + char1 = colorTable[a].string[0]; if (cidx[char1] == NULL) { /* get new memory */ cidx[char1] = (unsigned short *) XpmCalloc(256, sizeof(unsigned short)); @@ -636,11 +613,6 @@ do \ char *s; char buf[BUFSIZ]; - if (cpp >= sizeof(buf)) { - XpmFree(iptr2); /* found by Egbert Eich */ - return (XpmFileInvalid); - } - buf[cpp] = '\0'; if (USE_HASHTABLE) { xpmHashAtom *slot; Index: b/lib/Xm/Xpmscan.c =================================================================== --- a/lib/Xm/Xpmscan.c +++ b/lib/Xm/Xpmscan.c @@ -43,8 +43,6 @@ #endif -/* October 2004, source code review by Thomas Biege <thomas@suse.de> */ - #include "XpmI.h" #define MAXPRINTABLE 92 /* number of printable ascii chars @@ -100,8 +98,7 @@ LFUNC(MSWGetImagePixels, int, (Display * LFUNC(ScanTransparentColor, int, (XpmColor *color, unsigned int cpp, XpmAttributes *attributes)); -LFUNC(ScanOtherColors, int, (Display *display, XpmColor *colors, - unsigned int ncolors, +LFUNC(ScanOtherColors, int, (Display *display, XpmColor *colors, int ncolors, Pixel *pixels, unsigned int mask, unsigned int cpp, XpmAttributes *attributes)); @@ -228,17 +225,11 @@ XpmCreateXpmImageFromImage(display, imag else cpp = 0; - if ((height > 0 && width >= UINT_MAX / height) || - width * height >= UINT_MAX / sizeof(unsigned int)) - RETURN(XpmNoMemory); pmap.pixelindex = (unsigned int *) XpmCalloc(width * height, sizeof(unsigned int)); if (!pmap.pixelindex) RETURN(XpmNoMemory); - if (pmap.size >= UINT_MAX / sizeof(Pixel)) - RETURN(XpmNoMemory); - pmap.pixels = (Pixel *) XpmMalloc(sizeof(Pixel) * pmap.size); if (!pmap.pixels) RETURN(XpmNoMemory); @@ -293,8 +284,7 @@ XpmCreateXpmImageFromImage(display, imag * get rgb values and a string of char, and possibly a name for each * color */ - if (pmap.ncolors >= UINT_MAX / sizeof(XpmColor)) - RETURN(XpmNoMemory); + colorTable = (XpmColor *) XpmCalloc(pmap.ncolors, sizeof(XpmColor)); if (!colorTable) RETURN(XpmNoMemory); @@ -342,8 +332,6 @@ ScanTransparentColor(color, cpp, attribu /* first get a character string */ a = 0; - if (cpp >= UINT_MAX - 1) - return (XpmNoMemory); if (!(s = color->string = (char *) XpmMalloc(cpp + 1))) return (XpmNoMemory); *s++ = printable[c = a % MAXPRINTABLE]; @@ -391,7 +379,7 @@ static int ScanOtherColors(display, colors, ncolors, pixels, mask, cpp, attributes) Display *display; XpmColor *colors; - unsigned int ncolors; + int ncolors; Pixel *pixels; unsigned int mask; unsigned int cpp; @@ -435,8 +423,6 @@ ScanOtherColors(display, colors, ncolors } /* first get character strings and rgb values */ - if (ncolors >= UINT_MAX / sizeof(XColor) || cpp >= UINT_MAX - 1) - return (XpmNoMemory); xcolors = (XColor *) XpmMalloc(sizeof(XColor) * ncolors); if (!xcolors) return (XpmNoMemory); @@ -604,9 +590,6 @@ GetImagePixels(image, width, height, pma ibpp = image->bits_per_pixel; offset = image->xoffset; - if (image->bitmap_unit < 0) - return (XpmNoMemory); - if ((image->bits_per_pixel | image->depth) == 1) { ibu = image->bitmap_unit; for (y = 0; y < height; y++)
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