freebsd-dev/usr.bin/size/size.c

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/*
* Copyright (c) 1988, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
static const char copyright[] =
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"@(#) Copyright (c) 1988, 1993\n\
The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#ifndef lint
#if 0
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static char sccsid[] = "@(#)size.c 8.2 (Berkeley) 12/9/93";
#endif
static const char rcsid[] =
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"$FreeBSD$";
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#endif /* not lint */
#include <sys/param.h>
#include <sys/file.h>
#include <err.h>
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#include <a.out.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
int show __P((int, char *));
static void usage __P((void));
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int
main(argc, argv)
int argc;
char *argv[];
{
int ch, eval;
while ((ch = getopt(argc, argv, "")) != -1)
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switch(ch) {
case '?':
default:
usage();
}
argc -= optind;
argv += optind;
eval = 0;
if (*argv)
do {
eval |= show(argc, *argv);
} while (*++argv);
else
eval |= show(1, "a.out");
exit(eval);
}
int
show(count, name)
int count;
char *name;
{
static int first = 1;
struct exec head;
u_long total;
int fd;
if ((fd = open(name, O_RDONLY, 0)) < 0) {
warn("%s", name);
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return (1);
}
if (read(fd, &head, sizeof(head)) != sizeof(head) || N_BADMAG(head)) {
(void)close(fd);
warnx("%s: not in a.out format", name);
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return (1);
}
(void)close(fd);
if (first) {
first = 0;
(void)printf("text\tdata\tbss\tdec\thex\n");
}
total = head.a_text + head.a_data + head.a_bss;
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(void)printf("%lu\t%lu\t%lu\t%lu\t%lx", (u_long)head.a_text,
(u_long)head.a_data, (u_long)head.a_bss, total, total);
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if (count > 1)
(void)printf("\t%s", name);
(void)printf("\n");
return (0);
}
static void
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usage()
{
(void)fprintf(stderr, "usage: size [file ...]\n");
exit(1);
}