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annotate rogue4/vers.c @ 176:db1c9a21a7c3

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srogue: prevent overflowing the score file name. If SCOREFILE is not defined, roguehome() is called to find a directory for the score file. It copies up to PATH_MAX-20 bytes from an environment variable to a static buffer. Later these are strcpy()'d to scorefile, which is of size LINLEN. Unfortunately LINLEN is 80 and PATH_MAX is at least 256. On Linux, it happens to be 4096. I haven't yet managed to crash or exploit it, but there are surely no beneficial consequences, so roguehome() has been modified to check the length, and the string it returns is also checked in main().
author John "Elwin" Edwards
date Sun, 02 Aug 2015 12:14:47 -0400
parents 9535a08ddc39
children
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9535a08ddc39 Import Rogue 5.2 from the Roguelike Restoration Project (r1490)
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1 /*
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2 * Rogue: Exploring the Dungeons of Doom
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3 * Copyright (C) 1980, 1981, 1982 Michael Toy, Ken Arnold and Glenn Wichman
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4 * All rights reserved.
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5 *
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6 * See the file LICENSE.TXT for full copyright and licensing information.
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7 */
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8
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9 /*
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10 * Version number. Whenever a new version number is desired, use sccs
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11 * to get vers.c. encstr is declared here to force it to be loaded
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12 * before the version number, and therefore not to be written in saved
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13 * games.
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14 */
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16 char *release = "5.2";
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17 char encstr[] = "\211g\321_-\251b\324\237;\255\263\214g\"\327\224.,\252|9\265=\357+\343;\311]\341`\251\b\231)\266Y\325\251";
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18 char version[] = "@(#)vers.c 5.2 (Berkeley) 4/11/82";