| File: | mi/midash.c |
| Location: | line 78, column 21 |
| Description: | Division by zero |
| 1 | /*********************************************************** | |||
| 2 | ||||
| 3 | Copyright 1987, 1998 The Open Group | |||
| 4 | ||||
| 5 | Permission to use, copy, modify, distribute, and sell this software and its | |||
| 6 | documentation for any purpose is hereby granted without fee, provided that | |||
| 7 | the above copyright notice appear in all copies and that both that | |||
| 8 | copyright notice and this permission notice appear in supporting | |||
| 9 | documentation. | |||
| 10 | ||||
| 11 | The above copyright notice and this permission notice shall be included in | |||
| 12 | all copies or substantial portions of the Software. | |||
| 13 | ||||
| 14 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |||
| 15 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |||
| 16 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |||
| 17 | OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN | |||
| 18 | AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |||
| 19 | CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |||
| 20 | ||||
| 21 | Except as contained in this notice, the name of The Open Group shall not be | |||
| 22 | used in advertising or otherwise to promote the sale, use or other dealings | |||
| 23 | in this Software without prior written authorization from The Open Group. | |||
| 24 | ||||
| 25 | Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts. | |||
| 26 | ||||
| 27 | All Rights Reserved | |||
| 28 | ||||
| 29 | Permission to use, copy, modify, and distribute this software and its | |||
| 30 | documentation for any purpose and without fee is hereby granted, | |||
| 31 | provided that the above copyright notice appear in all copies and that | |||
| 32 | both that copyright notice and this permission notice appear in | |||
| 33 | supporting documentation, and that the name of Digital not be | |||
| 34 | used in advertising or publicity pertaining to distribution of the | |||
| 35 | software without specific, written prior permission. | |||
| 36 | ||||
| 37 | DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING | |||
| 38 | ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL | |||
| 39 | DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR | |||
| 40 | ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, | |||
| 41 | WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, | |||
| 42 | ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS | |||
| 43 | SOFTWARE. | |||
| 44 | ||||
| 45 | ******************************************************************/ | |||
| 46 | #ifdef HAVE_DIX_CONFIG_H1 | |||
| 47 | #include <dix-config.h> | |||
| 48 | #endif | |||
| 49 | ||||
| 50 | #include "regionstr.h" | |||
| 51 | #include "mistruct.h" | |||
| 52 | ||||
| 53 | void | |||
| 54 | miStepDash(int dist, /* distance to step */ | |||
| 55 | int *pDashIndex, /* current dash */ | |||
| 56 | unsigned char *pDash, /* dash list */ | |||
| 57 | int numInDashList, /* total length of dash list */ | |||
| 58 | int *pDashOffset /* offset into current dash */ | |||
| 59 | ) | |||
| 60 | { | |||
| 61 | int dashIndex, dashOffset; | |||
| 62 | int totallen; | |||
| 63 | int i; | |||
| 64 | ||||
| 65 | dashIndex = *pDashIndex; | |||
| 66 | dashOffset = *pDashOffset; | |||
| 67 | if (dist < pDash[dashIndex] - dashOffset) { | |||
| ||||
| 68 | *pDashOffset = dashOffset + dist; | |||
| 69 | return; | |||
| 70 | } | |||
| 71 | dist -= pDash[dashIndex] - dashOffset; | |||
| 72 | if (++dashIndex == numInDashList) | |||
| 73 | dashIndex = 0; | |||
| 74 | totallen = 0; | |||
| 75 | for (i = 0; i < numInDashList; i++) | |||
| 76 | totallen += pDash[i]; | |||
| 77 | if (totallen <= dist) | |||
| 78 | dist = dist % totallen; | |||
| ||||
| 79 | while (dist >= pDash[dashIndex]) { | |||
| 80 | dist -= pDash[dashIndex]; | |||
| 81 | if (++dashIndex == numInDashList) | |||
| 82 | dashIndex = 0; | |||
| 83 | } | |||
| 84 | *pDashIndex = dashIndex; | |||
| 85 | *pDashOffset = dist; | |||
| 86 | } |