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ghostscript
CVE-2016-9601.patch
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File CVE-2016-9601.patch of Package ghostscript
From e698d5c11d27212aa1098bc5b1673a3378563092 Mon Sep 17 00:00:00 2001 From: Robin Watts <robin.watts@artifex.com> Date: Mon, 12 Dec 2016 17:47:17 +0000 Subject: [PATCH] Squash signed/unsigned warnings in MSVC jbig2 build. Also rename "new" to "new_dict", because "new" is a bad variable name. --- jbig2.c | 4 +-- jbig2.h | 8 +++--- jbig2_generic.c | 2 +- jbig2_halftone.c | 24 ++++++++---------- jbig2_huffman.c | 10 ++++---- jbig2_huffman.h | 2 +- jbig2_image.c | 32 +++++++++++------------ jbig2_mmr.c | 66 +++++++++++++++++++++++++----------------------- jbig2_page.c | 6 ++--- jbig2_priv.h | 4 +-- jbig2_segment.c | 10 ++++---- jbig2_symbol_dict.c | 73 +++++++++++++++++++++++++++-------------------------- jbig2_symbol_dict.h | 6 ++--- jbig2_text.c | 16 ++++++------ jbig2_text.h | 2 +- 15 files changed, 134 insertions(+), 131 deletions(-) diff --git a/jbig2dec/jbig2.c b/jbig2dec/jbig2.c index deda676..54a19c9 100644 --- a/jbig2dec/jbig2.c +++ b/jbig2dec/jbig2.c @@ -434,7 +434,7 @@ typedef struct { } Jbig2WordStreamBuf; static int -jbig2_word_stream_buf_get_next_word(Jbig2WordStream *self, int offset, +jbig2_word_stream_buf_get_next_word(Jbig2WordStream *self, size_t offset, uint32_t *word) { Jbig2WordStreamBuf *z = (Jbig2WordStreamBuf *)self; @@ -448,7 +448,7 @@ jbig2_word_stream_buf_get_next_word(Jbig2WordStream *self, int offset, return -1; else { - int i; + size_t i; result = 0; for (i = 0; i < z->size - offset; i++) diff --git a/jbig2dec/jbig2.h b/jbig2dec/jbig2.h index 2714e17..626603d 100644 --- a/jbig2dec/jbig2.h +++ b/jbig2dec/jbig2.h @@ -71,18 +71,20 @@ typedef struct _Jbig2SymbolDictionary Jbig2SymbolDictionary; */ struct _Jbig2Image { - int width, height, stride; + uint32_t width; + uint32_t height; + uint32_t stride; uint8_t *data; int refcount; }; -Jbig2Image* jbig2_image_new(Jbig2Ctx *ctx, int width, int height); +Jbig2Image* jbig2_image_new(Jbig2Ctx *ctx, uint32_t width, uint32_t height); Jbig2Image* jbig2_image_clone(Jbig2Ctx *ctx, Jbig2Image *image); void jbig2_image_release(Jbig2Ctx *ctx, Jbig2Image *image); void jbig2_image_free(Jbig2Ctx *ctx, Jbig2Image *image); void jbig2_image_clear(Jbig2Ctx *ctx, Jbig2Image *image, int value); Jbig2Image *jbig2_image_resize(Jbig2Ctx *ctx, Jbig2Image *image, - int width, int height); + uint32_t width, uint32_t height); /* errors are returned from the library via a callback. If no callback is provided (a NULL argument is passed ot jbig2_ctx_new) a default diff --git a/jbig2dec/jbig2_generic.c b/jbig2dec/jbig2_generic.c index 1add900..7a37507 100644 --- a/jbig2dec/jbig2_generic.c +++ b/jbig2dec/jbig2_generic.c @@ -824,7 +824,7 @@ jbig2_immediate_generic_region(Jbig2Ctx *ctx, Jbig2Segment *segment, byte seg_flags; int8_t gbat[8]; int offset; - int gbat_bytes = 0; + uint32_t gbat_bytes = 0; Jbig2GenericRegionParams params; int code = 0; Jbig2Image *image = NULL; diff --git a/jbig2dec/jbig2_halftone.c b/jbig2dec/jbig2_halftone.c index 48d095a..eedbbc8 100644 --- a/jbig2dec/jbig2_halftone.c +++ b/jbig2dec/jbig2_halftone.c @@ -284,8 +284,8 @@ jbig2_decode_gray_scale_image(Jbig2Ctx *ctx, Jbig2Segment* segment, { uint8_t **GSVALS = NULL; size_t consumed_bytes = 0; - int i, j, code, stride; - int x, y; + uint32_t i, j, stride, x, y; + int code; Jbig2Image **GSPLANES; Jbig2GenericRegionParams rparams; Jbig2WordStream *ws = NULL; @@ -305,8 +305,8 @@ jbig2_decode_gray_scale_image(Jbig2Ctx *ctx, Jbig2Segment* segment, jbig2_error(ctx, JBIG2_SEVERITY_FATAL, segment->number, "failed to allocate %dx%d image for GSPLANES", GSW, GSH); /* free already allocated */ - for (j = i-1; j >= 0; --j) { - jbig2_image_release(ctx, GSPLANES[j]); + for (j = i; j > 0;) { + jbig2_image_release(ctx, GSPLANES[--j]); } jbig2_free(ctx->allocator, GSPLANES); return NULL; @@ -359,9 +359,10 @@ jbig2_decode_gray_scale_image(Jbig2Ctx *ctx, Jbig2Segment* segment, } /* C.5 step 2. Set j = GSBPP-2 */ - j = GSBPP - 2; + j = GSBPP - 1; /* C.5 step 3. decode loop */ - while(j >= 0) { + while(j > 0) { + j--; /* C.5 step 3. (a) */ if (GSMMR) { code = jbig2_decode_halftone_mmr(ctx, &rparams, data + consumed_bytes, @@ -385,7 +386,6 @@ jbig2_decode_gray_scale_image(Jbig2Ctx *ctx, Jbig2Segment* segment, GSPLANES[j]->data[i] ^= GSPLANES[j+1]->data[i]; /* C.5 step 3. (c) */ - --j; } /* allocate GSVALS */ @@ -401,8 +401,8 @@ jbig2_decode_gray_scale_image(Jbig2Ctx *ctx, Jbig2Segment* segment, jbig2_error(ctx, JBIG2_SEVERITY_FATAL, segment->number, "failed to allocate GSVALS: %d bytes", GSH * GSW); /* free already allocated */ - for (j = i-1; j >= 0; --j) { - jbig2_free(ctx->allocator, GSVALS[j]); + for (j = i; j > 0;) { + jbig2_free(ctx->allocator, GSVALS[--j]); } jbig2_free(ctx->allocator, GSVALS); GSVALS = NULL; @@ -495,7 +495,7 @@ jbig2_decode_halftone_region(Jbig2Ctx *ctx, Jbig2Segment *segment, uint8_t **GI; Jbig2Image *HSKIP = NULL; Jbig2PatternDict * HPATS; - int i; + uint32_t i; uint32_t mg, ng; int32_t x, y; uint8_t gray_val; @@ -523,7 +523,7 @@ jbig2_decode_halftone_region(Jbig2Ctx *ctx, Jbig2Segment *segment, /* calculate ceil(log2(HNUMPATS)) */ HBPP = 0; - while(HNUMPATS > (1 << ++HBPP)); + while(HNUMPATS > (1U << ++HBPP)); /* 6.6.5 point 4. decode gray-scale image as mentioned in annex C */ GI = jbig2_decode_gray_scale_image(ctx, segment, data, size, diff --git a/jbig2dec/jbig2_huffman.c b/jbig2dec/jbig2_huffman.c index 38efb99..4ba45c6 100644 --- a/jbig2dec/jbig2_huffman.c +++ b/jbig2dec/jbig2_huffman.c @@ -50,9 +50,9 @@ struct _Jbig2HuffmanState { is (offset + 4) * 8. */ uint32_t this_word; uint32_t next_word; - int offset_bits; - int offset; - int offset_limit; + uint32_t offset_bits; + uint32_t offset; + uint32_t offset_limit; Jbig2WordStream *ws; Jbig2Ctx *ctx; @@ -60,7 +60,7 @@ struct _Jbig2HuffmanState { static uint32_t -huff_get_next_word(Jbig2HuffmanState *hs, int offset) +huff_get_next_word(Jbig2HuffmanState *hs, uint32_t offset) { uint32_t word = 0; Jbig2WordStream *ws = hs->ws; @@ -215,7 +215,7 @@ void jbig2_huffman_advance(Jbig2HuffmanState *hs, int offset) /* return the offset of the huffman decode pointer (in bytes) * from the beginning of the WordStream */ -int +uint32_t jbig2_huffman_offset(Jbig2HuffmanState *hs) { return hs->offset + (hs->offset_bits >> 3); diff --git a/jbig2dec/jbig2_huffman.h b/jbig2dec/jbig2_huffman.h index 2e2fdec..303b622 100644 --- a/jbig2dec/jbig2_huffman.h +++ b/jbig2dec/jbig2_huffman.h @@ -68,7 +68,7 @@ jbig2_huffman_skip(Jbig2HuffmanState *hs); void jbig2_huffman_advance(Jbig2HuffmanState *hs, int offset); -int +uint32_t jbig2_huffman_offset(Jbig2HuffmanState *hs); int32_t diff --git a/jbig2dec/jbig2_image.c b/jbig2dec/jbig2_image.c index b21bbea..ef7239a 100644 --- a/jbig2dec/jbig2_image.c +++ b/jbig2dec/jbig2_image.c @@ -33,10 +33,10 @@ /* allocate a Jbig2Image structure and its associated bitmap */ -Jbig2Image* jbig2_image_new(Jbig2Ctx *ctx, int width, int height) +Jbig2Image* jbig2_image_new(Jbig2Ctx *ctx, uint32_t width, uint32_t height) { Jbig2Image *image; - int stride; + uint32_t stride; int64_t check; image = jbig2_new(ctx, Jbig2Image, 1); @@ -102,7 +102,7 @@ void jbig2_image_free(Jbig2Ctx *ctx, Jbig2Image *image) /* resize a Jbig2Image */ Jbig2Image *jbig2_image_resize(Jbig2Ctx *ctx, Jbig2Image *image, - int width, int height) + uint32_t width, uint32_t height) { if (width == image->width) { /* check for integer multiplication overflow */ @@ -142,11 +142,11 @@ int jbig2_image_compose_unopt(Jbig2Ctx *ctx, Jbig2Image *dst, Jbig2Image *src, int x, int y, Jbig2ComposeOp op) { - int i, j; - int sw = src->width; - int sh = src->height; - int sx = 0; - int sy = 0; + uint32_t i, j; + uint32_t sw = src->width; + uint32_t sh = src->height; + uint32_t sx = 0; + uint32_t sy = 0; /* clip to the dst image boundaries */ if (x < 0) { sx += -x; sw -= -x; x = 0; } @@ -208,10 +208,10 @@ int jbig2_image_compose_unopt(Jbig2Ctx *ctx, int jbig2_image_compose(Jbig2Ctx *ctx, Jbig2Image *dst, Jbig2Image *src, int x, int y, Jbig2ComposeOp op) { - int i, j; - int w, h; - int leftbyte, rightbyte; - int shift; + uint32_t i, j; + uint32_t w, h; + uint32_t leftbyte, rightbyte; + uint32_t shift; uint8_t *s, *ss; uint8_t *d, *dd; uint8_t mask, rightmask; @@ -228,8 +228,8 @@ int jbig2_image_compose(Jbig2Ctx *ctx, Jbig2Image *dst, Jbig2Image *src, if (x < 0) { w += x; x = 0; } if (y < 0) { h += y; y = 0; } - w = (x + w < dst->width) ? w : dst->width - x; - h = (y + h < dst->height) ? h : dst->height - y; + w = ((uint32_t)x + w < dst->width) ? w : ((dst->width >= (uint32_t)x) ? dst->width - (uint32_t)x : 0); + h = ((uint32_t)y + h < dst->height) ? h : ((dst->height >= (uint32_t)y) ? dst->height - (uint32_t)y : 0); #ifdef JBIG2_DEBUG jbig2_error(ctx, JBIG2_SEVERITY_DEBUG, -1, "compositing %dx%d at (%d, %d) after clipping\n", @@ -255,8 +255,8 @@ int jbig2_image_compose(Jbig2Ctx *ctx, Jbig2Image *dst, Jbig2Image *src, } #endif - leftbyte = x >> 3; - rightbyte = (x + w - 1) >> 3; + leftbyte = (uint32_t)x >> 3; + rightbyte = ((uint32_t)x + w - 1) >> 3; shift = x & 7; /* general OR case */ diff --git a/jbig2dec/jbig2_mmr.c b/jbig2dec/jbig2_mmr.c index cd7b061..14d9579 100644 --- a/jbig2dec/jbig2_mmr.c +++ b/jbig2dec/jbig2_mmr.c @@ -39,20 +39,21 @@ #include "jbig2_mmr.h" typedef struct { - int width; - int height; + uint32_t width; + uint32_t height; const byte *data; size_t size; - int data_index; - int bit_index; + uint32_t data_index; + uint32_t bit_index; uint32_t word; } Jbig2MmrCtx; +#define MINUS1 ((uint32_t)-1) static void jbig2_decode_mmr_init(Jbig2MmrCtx *mmr, int width, int height, const byte *data, size_t size) { - int i; + size_t i; uint32_t word = 0; mmr->width = width; @@ -734,14 +735,14 @@ const mmr_table_node jbig2_mmr_black_decode[] = { #define getbit(buf, x) ( ( buf[x >> 3] >> ( 7 - (x & 7) ) ) & 1 ) static int -jbig2_find_changing_element(const byte *line, int x, int w) +jbig2_find_changing_element(const byte *line, uint32_t x, uint32_t w) { int a, b; if (line == 0) - return w; + return (int)w; - if (x == -1) { + if (x == MINUS1) { a = 0; x = 0; } @@ -761,7 +762,7 @@ jbig2_find_changing_element(const byte *line, int x, int w) } static int -jbig2_find_changing_element_of_color(const byte *line, int x, int w, int color) +jbig2_find_changing_element_of_color(const byte *line, uint32_t x, uint32_t w, int color) { if (line == 0) return w; @@ -775,9 +776,9 @@ static const byte lm[8] = { 0xFF, 0x7F, 0x3F, 0x1F, 0x0F, 0x07, 0x03, 0x01 }; static const byte rm[8] = { 0x00, 0x80, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC, 0xFE }; static void -jbig2_set_bits(byte *line, int x0, int x1) +jbig2_set_bits(byte *line, uint32_t x0, uint32_t x1) { - int a0, a1, b0, b1, a; + uint32_t a0, a1, b0, b1, a; a0 = x0 >> 3; a1 = x1 >> 3; @@ -834,8 +835,8 @@ jbig2_decode_get_run(Jbig2MmrCtx *mmr, const mmr_table_node *table, int initial_ static int jbig2_decode_mmr_line(Jbig2MmrCtx *mmr, const byte *ref, byte *dst) { - int a0 = -1; - int a1, a2, b1, b2; + uint32_t a0 = MINUS1; + uint32_t a1, a2, b1, b2; int c = 0; /* 0 is white, black is 1 */ while (1) @@ -843,7 +844,7 @@ jbig2_decode_mmr_line(Jbig2MmrCtx *mmr, const byte *ref, byte *dst) uint32_t word = mmr->word; /* printf ("%08x\n", word); */ - if (a0 >= mmr->width) + if (a0 != MINUS1 && a0 >= mmr->width) break; if ((word >> (32 - 3)) == 1) @@ -852,7 +853,7 @@ jbig2_decode_mmr_line(Jbig2MmrCtx *mmr, const byte *ref, byte *dst) jbig2_decode_mmr_consume(mmr, 3); - if (a0 == -1) + if (a0 == MINUS1) a0 = 0; if (c == 0) { @@ -862,7 +863,7 @@ jbig2_decode_mmr_line(Jbig2MmrCtx *mmr, const byte *ref, byte *dst) a2 = a1 + black_run; if (a1 > mmr->width) a1 = mmr->width; if (a2 > mmr->width) a2 = mmr->width; - if (a2 < a1 || a1 < 0) return -1; + if (a1 == MINUS1 || a2 < a1) return -1; jbig2_set_bits(dst, a1, a2); a0 = a2; /* printf ("H %d %d\n", white_run, black_run); */ @@ -875,7 +876,7 @@ jbig2_decode_mmr_line(Jbig2MmrCtx *mmr, const byte *ref, byte *dst) a2 = a1 + white_run; if (a1 > mmr->width) a1 = mmr->width; if (a2 > mmr->width) a2 = mmr->width; - if (a1 < a0 || a0 < 0) return -1; + if (a0 == MINUS1 || a1 < a0) return -1; jbig2_set_bits(dst, a0, a1); a0 = a2; /* printf ("H %d %d\n", black_run, white_run); */ @@ -890,7 +891,7 @@ jbig2_decode_mmr_line(Jbig2MmrCtx *mmr, const byte *ref, byte *dst) b2 = jbig2_find_changing_element(ref, b1, mmr->width); if (c) { - if (b2 < a0 || a0 < 0) return -1; + if (a0 == MINUS1 || b2 < a0) return -1; jbig2_set_bits(dst, a0, b2); } a0 = b2; @@ -903,7 +904,7 @@ jbig2_decode_mmr_line(Jbig2MmrCtx *mmr, const byte *ref, byte *dst) b1 = jbig2_find_changing_element_of_color(ref, a0, mmr->width, !c); if (c) { - if (b1 < a0 || a0 < 0) return -1; + if (a0 == MINUS1 || b1 < a0) return -1; jbig2_set_bits(dst, a0, b1); } a0 = b1; @@ -918,7 +919,7 @@ jbig2_decode_mmr_line(Jbig2MmrCtx *mmr, const byte *ref, byte *dst) if (b1 + 1 > mmr->width) break; if (c) { - if (b1 + 1 < a0 || a0 < 0) return -1; + if (a0 == MINUS1 || b1 + 1 < a0) return -1; jbig2_set_bits(dst, a0, b1 + 1); } a0 = b1 + 1; @@ -933,7 +934,7 @@ jbig2_decode_mmr_line(Jbig2MmrCtx *mmr, const byte *ref, byte *dst) if (b1 + 2 > mmr->width) break; if (c) { - if (b1 + 2 < a0 || a0 < 0) return -1; + if (a0 == MINUS1 || b1 + 2 < a0) return -1; jbig2_set_bits(dst, a0, b1 + 2); } a0 = b1 + 2; @@ -945,10 +946,10 @@ jbig2_decode_mmr_line(Jbig2MmrCtx *mmr, const byte *ref, byte *dst) /* printf ("VR(3)\n"); */ jbig2_decode_mmr_consume(mmr, 7); b1 = jbig2_find_changing_element_of_color(ref, a0, mmr->width, !c); - if (b1 + 3 > mmr->width) break; + if (b1 + 3 > (int)mmr->width) break; if (c) { - if (b1 + 3 < a0 || a0 < 0) return -1; + if (a0 == MINUS1 || b1 + 3 < a0) return -1; jbig2_set_bits(dst, a0, b1 + 3); } a0 = b1 + 3; @@ -960,10 +961,10 @@ jbig2_decode_mmr_line(Jbig2MmrCtx *mmr, const byte *ref, byte *dst) /* printf ("VL(1)\n"); */ jbig2_decode_mmr_consume(mmr, 3); b1 = jbig2_find_changing_element_of_color(ref, a0, mmr->width, !c); - if (b1 - 1 < 0) break; + if (b1 < 1) break; if (c) { - if (b1 - 1 < a0 || a0 < 0) return -1; + if (a0 == MINUS1 || b1 - 1 < a0) return -1; jbig2_set_bits(dst, a0, b1 - 1); } a0 = b1 - 1; @@ -975,7 +976,7 @@ jbig2_decode_mmr_line(Jbig2MmrCtx *mmr, const byte *ref, byte *dst) /* printf ("VL(2)\n"); */ jbig2_decode_mmr_consume(mmr, 6); b1 = jbig2_find_changing_element_of_color(ref, a0, mmr->width, !c); - if (b1 - 2 < 0) break; + if (b1 < 2) break; if (c) { if (b1 - 2 < a0 || a0 < 0) return -1; @@ -990,10 +991,10 @@ jbig2_decode_mmr_line(Jbig2MmrCtx *mmr, const byte *ref, byte *dst) /* printf ("VL(3)\n"); */ jbig2_decode_mmr_consume(mmr, 7); b1 = jbig2_find_changing_element_of_color(ref, a0, mmr->width, !c); - if (b1 - 3 < 0) break; + if (b1 < 3) break; if (c) { - if (b1 - 3 < a0 || a0 < 0) return -1; + if (a0 == MINUS1 || b1 - 3 < a0) return -1; jbig2_set_bits(dst, a0, b1 - 3); } a0 = b1 - 3; @@ -1015,10 +1016,10 @@ jbig2_decode_generic_mmr(Jbig2Ctx *ctx, Jbig2Image *image) { Jbig2MmrCtx mmr; - const int rowstride = image->stride; + const uint32_t rowstride = image->stride; byte *dst = image->data; byte *ref = NULL; - int y; + uint32_t y; int code = 0; jbig2_decode_mmr_init(&mmr, image->width, image->height, data, size); @@ -1055,10 +1056,10 @@ jbig2_decode_halftone_mmr(Jbig2Ctx *ctx, Jbig2Image *image, size_t* consumed_bytes) { Jbig2MmrCtx mmr; - const int rowstride = image->stride; + const uint32_t rowstride = image->stride; byte *dst = image->data; byte *ref = NULL; - int y; + uint32_t y; int code = 0; const uint32_t EOFB = 0x001001; diff --git a/jbig2dec/jbig2_page.c b/jbig2dec/jbig2_page.c index e82ff26..3d4cd46 100644 --- a/jbig2dec/jbig2_page.c +++ b/jbig2dec/jbig2_page.c @@ -171,9 +171,9 @@ int jbig2_end_of_stripe(Jbig2Ctx *ctx, Jbig2Segment *segment, const uint8_t *segment_data) { Jbig2Page page = ctx->pages[ctx->current_page]; - int end_row; + uint32_t end_row; - end_row = jbig2_get_int32(segment_data); + end_row = jbig2_get_uint32(segment_data); if (end_row < page.end_row) { jbig2_error(ctx, JBIG2_SEVERITY_WARNING, segment->number, "end of stripe segment with non-positive end row advance" @@ -274,7 +274,7 @@ jbig2_page_add_result(Jbig2Ctx *ctx, Jbig2Page *page, Jbig2Image *image, /* grow the page to accomodate a new stripe if necessary */ if (page->striped) { - int new_height = y + image->height + page->end_row; + uint32_t new_height = y + image->height + page->end_row; if (page->image->height < new_height) { jbig2_error(ctx, JBIG2_SEVERITY_DEBUG, -1, "growing page buffer to %d rows " diff --git a/jbig2dec/jbig2_priv.h b/jbig2dec/jbig2_priv.h index 978216d..c13c8fd 100644 --- a/jbig2dec/jbig2_priv.h +++ b/jbig2dec/jbig2_priv.h @@ -129,7 +129,7 @@ struct _Jbig2Page { y_resolution; /* in pixels per meter */ uint16_t stripe_size; bool striped; - int end_row; + uint32_t end_row; uint8_t flags; Jbig2Image *image; }; @@ -184,7 +184,7 @@ int jbig2_halftone_region(Jbig2Ctx *ctx, Jbig2Segment *segment, typedef struct _Jbig2WordStream Jbig2WordStream; struct _Jbig2WordStream { - int (*get_next_word) (Jbig2WordStream *self, int offset, uint32_t *word); + int (*get_next_word) (Jbig2WordStream *self, size_t offset, uint32_t *word); }; Jbig2WordStream * diff --git a/jbig2dec/jbig2_segment.c b/jbig2dec/jbig2_segment.c index 1725761..19b0161 100644 --- a/jbig2dec/jbig2_segment.c +++ b/jbig2dec/jbig2_segment.c @@ -41,10 +41,10 @@ jbig2_parse_segment_header (Jbig2Ctx *ctx, uint8_t *buf, size_t buf_size, uint8_t rtscarf; uint32_t rtscarf_long; uint32_t *referred_to_segments; - int referred_to_segment_count; - int referred_to_segment_size; - int pa_size; - int offset; + uint32_t referred_to_segment_count; + uint32_t referred_to_segment_size; + uint32_t pa_size; + uint32_t offset; /* minimum possible size of a jbig2 segment header */ if (buf_size < 11) @@ -94,7 +94,7 @@ jbig2_parse_segment_header (Jbig2Ctx *ctx, uint8_t *buf, size_t buf_size, /* 7.2.5 */ if (referred_to_segment_count) { - int i; + uint32_t i; referred_to_segments = jbig2_new(ctx, uint32_t, referred_to_segment_count * referred_to_segment_size); diff --git a/jbig2dec/jbig2_symbol_dict.c b/jbig2dec/jbig2_symbol_dict.c index e12e89b..d4dc078 100644 --- a/jbig2dec/jbig2_symbol_dict.c +++ b/jbig2dec/jbig2_symbol_dict.c @@ -92,9 +92,9 @@ jbig2_dump_symbol_dict(Jbig2Ctx *ctx, Jbig2Segment *segment) /* return a new empty symbol dict */ Jbig2SymbolDict * -jbig2_sd_new(Jbig2Ctx *ctx, int n_symbols) +jbig2_sd_new(Jbig2Ctx *ctx, uint32_t n_symbols) { - Jbig2SymbolDict *new = NULL; + Jbig2SymbolDict *new_dict = NULL; if (n_symbols < 0) { jbig2_error(ctx, JBIG2_SEVERITY_FATAL, -1, @@ -102,33 +102,33 @@ jbig2_sd_new(Jbig2Ctx *ctx, int n_symbols) return NULL; } - new = jbig2_new(ctx, Jbig2SymbolDict, 1); - if (new != NULL) { - new->glyphs = jbig2_new(ctx, Jbig2Image*, n_symbols); - new->n_symbols = n_symbols; + new_dict = jbig2_new(ctx, Jbig2SymbolDict, 1); + if (new_dict != NULL) { + new_dict->glyphs = jbig2_new(ctx, Jbig2Image*, n_symbols); + new_dict->n_symbols = n_symbols; } else { jbig2_error(ctx, JBIG2_SEVERITY_FATAL, -1, "unable to allocate new empty symbol dict"); return NULL; } - if (new->glyphs != NULL) { - memset(new->glyphs, 0, n_symbols*sizeof(Jbig2Image*)); + if (new_dict->glyphs != NULL) { + memset(new_dict->glyphs, 0, n_symbols*sizeof(Jbig2Image*)); } else { jbig2_error(ctx, JBIG2_SEVERITY_FATAL, -1, "unable to allocate glyphs for new empty symbol dict"); - jbig2_free(ctx->allocator, new); + jbig2_free(ctx->allocator, new_dict); return NULL; } - return new; + return new_dict; } /* release the memory associated with a symbol dict */ void jbig2_sd_release(Jbig2Ctx *ctx, Jbig2SymbolDict *dict) { - int i; + uint32_t i; if (dict == NULL) return; for (i = 0; i < dict->n_symbols; i++) @@ -146,12 +146,12 @@ jbig2_sd_glyph(Jbig2SymbolDict *dict, unsigned int id) } /* count the number of dictionary segments referred to by the given segment */ -int +uint32_t jbig2_sd_count_referred(Jbig2Ctx *ctx, Jbig2Segment *segment) { int index; Jbig2Segment *rsegment; - int n_dicts = 0; + uint32_t n_dicts = 0; for (index = 0; index < segment->referred_to_segment_count; index++) { rsegment = jbig2_find_segment(ctx, segment->referred_to_segments[index]); @@ -172,8 +172,8 @@ jbig2_sd_list_referred(Jbig2Ctx *ctx, Jbig2Segment *segment) int index; Jbig2Segment *rsegment; Jbig2SymbolDict **dicts; - int n_dicts = jbig2_sd_count_referred(ctx, segment); - int dindex = 0; + uint32_t n_dicts = jbig2_sd_count_referred(ctx, segment); + uint32_t dindex = 0; dicts = jbig2_new(ctx, Jbig2SymbolDict*, n_dicts); if (dicts == NULL) @@ -206,10 +206,10 @@ jbig2_sd_list_referred(Jbig2Ctx *ctx, Jbig2Segment *segment) /* generate a new symbol dictionary by concatenating a list of existing dictionaries */ Jbig2SymbolDict * -jbig2_sd_cat(Jbig2Ctx *ctx, int n_dicts, Jbig2SymbolDict **dicts) +jbig2_sd_cat(Jbig2Ctx *ctx, uint32_t n_dicts, Jbig2SymbolDict **dicts) { - int i,j,k, symbols; - Jbig2SymbolDict *new = NULL; + uint32_t i,j,k, symbols; + Jbig2SymbolDict *new_dict = NULL; /* count the imported symbols and allocate a new array */ symbols = 0; @@ -217,18 +217,18 @@ jbig2_sd_cat(Jbig2Ctx *ctx, int n_dicts, Jbig2SymbolDict **dicts) symbols += dicts[i]->n_symbols; /* fill a new array with cloned glyph pointers */ - new = jbig2_sd_new(ctx, symbols); - if (new != NULL) { + new_dict = jbig2_sd_new(ctx, symbols); + if (new_dict != NULL) { k = 0; for (i = 0; i < n_dicts; i++) for (j = 0; j < dicts[i]->n_symbols; j++) - new->glyphs[k++] = jbig2_image_clone(ctx, dicts[i]->glyphs[j]); + new_dict->glyphs[k++] = jbig2_image_clone(ctx, dicts[i]->glyphs[j]); } else { jbig2_error(ctx, JBIG2_SEVERITY_WARNING, -1, "failed to allocate new symbol dictionary"); } - return new; + return new_dict; } @@ -476,7 +476,7 @@ jbig2_decode_symbol_dict(Jbig2Ctx *ctx, if (REFAGGNINST > 1) { Jbig2Image *image; - int i; + uint32_t i; if (tparams == NULL) { @@ -571,7 +571,7 @@ jbig2_decode_symbol_dict(Jbig2Ctx *ctx, uint32_t ID; int32_t RDX, RDY; int BMSIZE = 0; - int ninsyms = params->SDNUMINSYMS; + uint32_t ninsyms = params->SDNUMINSYMS; int code1 = 0; int code2 = 0; int code3 = 0; @@ -679,8 +679,9 @@ jbig2_decode_symbol_dict(Jbig2Ctx *ctx, if (params->SDHUFF && !params->SDREFAGG) { /* 6.5.9 */ Jbig2Image *image; - int BMSIZE = jbig2_huffman_get(hs, params->SDHUFFBMSIZE, &code); - int j, x; + uint32_t BMSIZE = jbig2_huffman_get(hs, params->SDHUFFBMSIZE, &code); + uint32_t j; + int x; if (code || (BMSIZE < 0)) { jbig2_error(ctx, JBIG2_SEVERITY_FATAL, segment->number, @@ -782,23 +783,23 @@ jbig2_decode_symbol_dict(Jbig2Ctx *ctx, } else { - int i = 0; - int j = 0; - int k; + uint32_t i = 0; + uint32_t j = 0; + uint32_t k; int exflag = 0; - int64_t limit = params->SDNUMINSYMS + params->SDNUMNEWSYMS; - int32_t exrunlength; + uint32_t limit = params->SDNUMINSYMS + params->SDNUMNEWSYMS; + uint32_t exrunlength; int zerolength = 0; while (i < limit) { if (params->SDHUFF) exrunlength = jbig2_huffman_get(hs, SBHUFFRSIZE, &code); else - code = jbig2_arith_int_decode(IAEX, as, &exrunlength); + code = jbig2_arith_int_decode(IAEX, as, (int32_t *)&exrunlength); /* prevent infinite loop */ zerolength = exrunlength > 0 ? 0 : zerolength + 1; if (code || (exrunlength > limit - i) || (exrunlength < 0) || (zerolength > 4) || - (exflag && (exrunlength > params->SDNUMEXSYMS - j))) { + (exflag && (exrunlength + j > params->SDNUMEXSYMS))) { if (code) jbig2_error(ctx, JBIG2_SEVERITY_FATAL, segment->number, "failed to decode exrunlength for exported symbols"); @@ -891,8 +892,8 @@ jbig2_symbol_dictionary(Jbig2Ctx *ctx, Jbig2Segment *segment, { Jbig2SymbolDictParams params; uint16_t flags; - int sdat_bytes; - int offset; + uint32_t sdat_bytes; + uint32_t offset; Jbig2ArithCx *GB_stats = NULL; Jbig2ArithCx *GR_stats = NULL; int table_index = 0; @@ -1063,7 +1064,7 @@ jbig2_symbol_dictionary(Jbig2Ctx *ctx, Jbig2Segment *segment, /* 7.4.2.2 (2) */ { - int n_dicts = jbig2_sd_count_referred(ctx, segment); + uint32_t n_dicts = jbig2_sd_count_referred(ctx, segment); Jbig2SymbolDict **dicts = NULL; if (n_dicts > 0) { diff --git a/jbig2dec/jbig2_symbol_dict.h b/jbig2dec/jbig2_symbol_dict.h index ae88f1a..966c1ff 100644 --- a/jbig2dec/jbig2_symbol_dict.h +++ b/jbig2dec/jbig2_symbol_dict.h @@ -37,7 +37,7 @@ jbig2_sd_glyph(Jbig2SymbolDict *dict, unsigned int id); /* return a new empty symbol dict */ Jbig2SymbolDict * -jbig2_sd_new(Jbig2Ctx *ctx, int n_symbols); +jbig2_sd_new(Jbig2Ctx *ctx, uint32_t n_symbols); /* release the memory associated with a symbol dict */ void @@ -46,12 +46,12 @@ jbig2_sd_release(Jbig2Ctx *ctx, Jbig2SymbolDict *dict); /* generate a new symbol dictionary by concatenating a list of existing dictionaries */ Jbig2SymbolDict * -jbig2_sd_cat(Jbig2Ctx *ctx, int n_dicts, +jbig2_sd_cat(Jbig2Ctx *ctx, uint32_t n_dicts, Jbig2SymbolDict **dicts); /* count the number of dictionary segments referred to by the given segment */ -int +uint32_t jbig2_sd_count_referred(Jbig2Ctx *ctx, Jbig2Segment *segment); /* return an array of pointers to symbol dictionaries referred diff --git a/jbig2dec/jbig2_text.c b/jbig2dec/jbig2_text.c index 5c9df26..dddc97e 100644 --- a/jbig2dec/jbig2_text.c +++ b/jbig2dec/jbig2_text.c @@ -56,7 +56,7 @@ int jbig2_decode_text_region(Jbig2Ctx *ctx, Jbig2Segment *segment, const Jbig2TextRegionParams *params, - const Jbig2SymbolDict * const *dicts, const int n_dicts, + const Jbig2SymbolDict * const *dicts, const uint32_t n_dicts, Jbig2Image *image, const byte *data, const size_t size, Jbig2ArithCx *GR_stats, Jbig2ArithState *as, Jbig2WordStream *ws) @@ -467,19 +467,19 @@ cleanup2: int jbig2_text_region(Jbig2Ctx *ctx, Jbig2Segment *segment, const byte *segment_data) { - int offset = 0; + uint32_t offset = 0; Jbig2RegionSegmentInfo region_info; Jbig2TextRegionParams params; Jbig2Image *image = NULL; Jbig2SymbolDict **dicts = NULL; - int n_dicts = 0; + uint32_t n_dicts = 0; uint16_t flags = 0; uint16_t huffman_flags = 0; Jbig2ArithCx *GR_stats = NULL; int code = 0; Jbig2WordStream *ws = NULL; Jbig2ArithState *as = NULL; - int table_index = 0; + uint32_t table_index = 0; const Jbig2HuffmanParams *huffman_params = NULL; /* 7.4.1 */ @@ -826,7 +826,7 @@ jbig2_text_region(Jbig2Ctx *ctx, Jbig2Segment *segment, const byte *segment_data "unable to retrive symbol dictionaries! previous parsing error?"); goto cleanup1; } else { - int index; + uint32_t index; if (dicts[0] == NULL) { code =jbig2_error(ctx, JBIG2_SEVERITY_WARNING, segment->number, "unable to find first referenced symbol dictionary!"); @@ -877,8 +877,8 @@ jbig2_text_region(Jbig2Ctx *ctx, Jbig2Segment *segment, const byte *segment_data } if (!params.SBHUFF) { - int SBSYMCODELEN, index; - int SBNUMSYMS = 0; + uint32_t SBSYMCODELEN, index; + uint32_t SBNUMSYMS = 0; for (index = 0; index < n_dicts; index++) { SBNUMSYMS += dicts[index]->n_symbols; } @@ -896,7 +896,7 @@ jbig2_text_region(Jbig2Ctx *ctx, Jbig2Segment *segment, const byte *segment_data } /* Table 31 */ - for (SBSYMCODELEN = 0; (1 << SBSYMCODELEN) < SBNUMSYMS; SBSYMCODELEN++); + for (SBSYMCODELEN = 0; (1U << SBSYMCODELEN) < SBNUMSYMS; SBSYMCODELEN++); params.IAID = jbig2_arith_iaid_ctx_new(ctx, SBSYMCODELEN); params.IARI = jbig2_arith_int_ctx_new(ctx); params.IARDW = jbig2_arith_int_ctx_new(ctx); diff --git a/jbig2dec/jbig2_text.h b/jbig2dec/jbig2_text.h index f52e840..6c1944e 100644 --- a/jbig2dec/jbig2_text.h +++ b/jbig2dec/jbig2_text.h @@ -70,7 +70,7 @@ typedef struct { int jbig2_decode_text_region(Jbig2Ctx *ctx, Jbig2Segment *segment, const Jbig2TextRegionParams *params, - const Jbig2SymbolDict * const *dicts, const int n_dicts, + const Jbig2SymbolDict * const *dicts, const uint32_t n_dicts, Jbig2Image *image, const byte *data, const size_t size, Jbig2ArithCx *GR_stats,
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