| File: | src/games/sail/main.c |
| Warning: | line 51, column 2 The return value from the call to 'setegid' is not checked. If an error occurs in 'setegid', the following code may execute with unexpected privileges |
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| 1 | /* $OpenBSD: main.c,v 1.11 2016/01/08 20:26:33 mestre Exp $ */ |
| 2 | /* $NetBSD: main.c,v 1.3 1995/04/22 10:37:01 cgd Exp $ */ |
| 3 | |
| 4 | /* |
| 5 | * Copyright (c) 1983, 1993 |
| 6 | * The Regents of the University of California. All rights reserved. |
| 7 | * |
| 8 | * Redistribution and use in source and binary forms, with or without |
| 9 | * modification, are permitted provided that the following conditions |
| 10 | * are met: |
| 11 | * 1. Redistributions of source code must retain the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer. |
| 13 | * 2. Redistributions in binary form must reproduce the above copyright |
| 14 | * notice, this list of conditions and the following disclaimer in the |
| 15 | * documentation and/or other materials provided with the distribution. |
| 16 | * 3. Neither the name of the University nor the names of its contributors |
| 17 | * may be used to endorse or promote products derived from this software |
| 18 | * without specific prior written permission. |
| 19 | * |
| 20 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 21 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 22 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 23 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 24 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 25 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 26 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 27 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 28 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 29 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 30 | * SUCH DAMAGE. |
| 31 | */ |
| 32 | |
| 33 | #include <err.h> |
| 34 | #include <fcntl.h> |
| 35 | #include <stdlib.h> |
| 36 | #include <string.h> |
| 37 | #include <unistd.h> |
| 38 | |
| 39 | #include "extern.h" |
| 40 | |
| 41 | int |
| 42 | main(int argc, char **argv) |
| 43 | { |
| 44 | extern char *__progname; |
| 45 | char *p; |
| 46 | int i; |
| 47 | int fd; |
| 48 | |
| 49 | gid = getgid(); |
| 50 | egid = getegid(); |
| 51 | setegid(gid); |
The return value from the call to 'setegid' is not checked. If an error occurs in 'setegid', the following code may execute with unexpected privileges | |
| 52 | |
| 53 | fd = open("/dev/null", O_RDONLY0x0000); |
| 54 | if (fd < 3) |
| 55 | return 1; |
| 56 | close(fd); |
| 57 | |
| 58 | p = __progname; |
| 59 | if (strcmp(p, "driver") == 0 || strcmp(p, "saildriver") == 0) |
| 60 | mode = MODE_DRIVER2; |
| 61 | else if (strcmp(p, "sail.log") == 0) |
| 62 | mode = MODE_LOGGER3; |
| 63 | else |
| 64 | mode = MODE_PLAYER1; |
| 65 | while ((p = *++argv) && *p == '-') |
| 66 | switch (p[1]) { |
| 67 | case 'd': |
| 68 | mode = MODE_DRIVER2; |
| 69 | break; |
| 70 | case 's': |
| 71 | mode = MODE_LOGGER3; |
| 72 | break; |
| 73 | case 'D': |
| 74 | debug++; |
| 75 | break; |
| 76 | case 'x': |
| 77 | randomize++; |
| 78 | break; |
| 79 | case 'l': |
| 80 | longfmt++; |
| 81 | break; |
| 82 | case 'b': |
| 83 | nobells++; |
| 84 | break; |
| 85 | default: |
| 86 | errx(1, "unknown flag %s", p); |
| 87 | } |
| 88 | if (*argv) |
| 89 | game = atoi(*argv); |
| 90 | else |
| 91 | game = -1; |
| 92 | if ((i = setjmp(restart))) |
| 93 | mode = i; |
| 94 | switch (mode) { |
| 95 | case MODE_PLAYER1: |
| 96 | pl_main(); |
| 97 | case MODE_DRIVER2: |
| 98 | return dr_main(); |
| 99 | case MODE_LOGGER3: |
| 100 | return lo_main(); |
| 101 | default: |
| 102 | warnx("Unknown mode %d", mode); |
| 103 | abort(); |
| 104 | } |
| 105 | } |