1 /* 2 * Copyright 2012 Collabora, Ltd. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining 5 * a copy of this software and associated documentation files (the 6 * "Software"), to deal in the Software without restriction, including 7 * without limitation the rights to use, copy, modify, merge, publish, 8 * distribute, sublicense, and/or sell copies of the Software, and to 9 * permit persons to whom the Software is furnished to do so, subject to 10 * the following conditions: 11 * 12 * The above copyright notice and this permission notice (including the 13 * next paragraph) shall be included in all copies or substantial 14 * portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 19 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 20 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 21 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 23 * SOFTWARE. 24 */ 25 26 #include <stdlib.h> 27 #include <stdio.h> 28 #include <errno.h> 29 #include <limits.h> 30 31 #include "test-runner.h" 32 33 static int 34 parse_count(const char *str, int *value) 35 { 36 char *end; 37 long v; 38 39 errno = 0; 40 v = strtol(str, &end, 10); 41 if ((errno == ERANGE && (v == LONG_MAX || v == LONG_MIN)) || 42 (errno != 0 && v == 0) || 43 (end == str) || 44 (*end != '\0')) { 45 return -1; 46 } 47 48 if (v < 0 || v > INT_MAX) { 49 return -1; 50 } 51 52 *value = v; 53 return 0; 54 } 55 56 int main(int argc, char *argv[]) 57 { 58 int expected; 59 60 if (argc != 2) 61 goto help_out; 62 63 if (parse_count(argv[1], &expected) < 0) 64 goto help_out; 65 66 if (count_open_fds() == expected) 67 return EXIT_SUCCESS; 68 else 69 return EXIT_FAILURE; 70 71 help_out: 72 fprintf(stderr, "Usage: %s N\n" 73 "where N is the expected number of open file descriptors.\n" 74 "This program exits with a failure if the number " 75 "does not match exactly.\n", argv[0]); 76 77 return EXIT_FAILURE; 78 } 79
