2 * Copyright (c) 1995, 1996, 1997, 1998, 1999 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * 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.
17 * 3. Neither the name of the Institute nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
41 #include <sys/types.h>
50 #define max(a,b) ((a) > (b) ? (a) : (b))
52 #define min(a,b) ((a) < (b) ? (a) : (b))
55 creat_files(int count
, long startsize
)
60 for (i
= 0; i
< count
; ++i
) {
64 snprintf(num
, sizeof(num
), "%d", i
);
66 fd
= open(num
, O_WRONLY
| O_CREAT
| O_EXCL
, 0777);
68 err(1, "open %s", num
);
75 len
= min(sizeof(buf
), size
);
77 ret
= write(fd
, buf
, len
);
79 err(1, "write to %s", num
);
81 errx(1, "short write to %s", num
);
85 err(1, "close %s", num
);
93 fprintf(stderr
, "%s number-of-files size-of-files\n", __progname
);
98 main(int argc
, char **argv
)
108 count
= strtol(argv
[1], &ptr
, 0);
109 if (count
== 0 && ptr
== argv
[1])
110 errx(1, "'%s' not a number", argv
[1]);
112 size
= strtol(argv
[2], &ptr
, 0);
113 if (size
== 0 && ptr
== argv
[2])
114 errx(1, "`%s' not a number", argv
[2]);
116 return creat_files(count
, size
);