1 /* 2 * This file and its contents are supplied under the terms of the 3 * Common Development and Distribution License ("CDDL"), version 1.0. 4 * You may only use this file in accordance with the terms of version 5 * 1.0 of the CDDL. 6 * 7 * A full copy of the text of the CDDL should have accompanied this 8 * source. A copy of the CDDL is also available via the Internet at 9 * http://www.illumos.org/license/CDDL. 10 */ 11 12 /* 13 * Copyright (c) 2016 by Delphix. All rights reserved. 14 */ 15 16 #include <stdio.h> 17 #include <stdlib.h> 18 #include <fcntl.h> 19 #include <string.h> 20 #include <errno.h> 21 #include <unistd.h> 22 #include <sys/param.h> 23 24 static void 25 usage(const char *msg, int exit_value) 26 { 27 (void) fprintf(stderr, "usage: mkfiles basename max_file [min_file]\n" 28 "%s\n", msg); 29 exit(exit_value); 30 } 31 32 int 33 main(int argc, char **argv) 34 { 35 unsigned int numfiles = 0; 36 unsigned int first_file = 0; 37 unsigned int i; 38 char buf[MAXPATHLEN]; 39 40 if (argc < 3 || argc > 4) 41 usage("Invalid number of arguments", 1); 42 43 if (sscanf(argv[2], "%u", &numfiles) != 1) 44 usage("Invalid maximum file", 2); 45 46 if (argc == 4 && sscanf(argv[3], "%u", &first_file) != 1) 47 usage("Invalid first file", 3); 48 49 for (i = first_file; i < first_file + numfiles; i++) { 50 int fd; 51 (void) snprintf(buf, MAXPATHLEN, "%s%u", argv[1], i); 52 if ((fd = open(buf, O_CREAT | O_EXCL, O_RDWR)) == -1) { 53 (void) fprintf(stderr, "Failed to create %s %s\n", buf, 54 strerror(errno)); 55 return (4); 56 } else if (fchown(fd, getuid(), getgid()) < 0) { 57 (void) fprintf(stderr, "Failed to chown %s %s\n", buf, 58 strerror(errno)); 59 return (5); 60 } 61 (void) close(fd); 62 } 63 return (0); 64 } 65