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1136f72d PR |
1 | /* |
2 | * Copyright (c) 1993 Paul Kranenburg | |
3 | * All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms, with or without | |
6 | * modification, are permitted provided that the following conditions | |
7 | * are met: | |
8 | * 1. Redistributions of source code must retain the above copyright | |
9 | * notice, this list of conditions and the following disclaimer. | |
10 | * 2. Redistributions in binary form must reproduce the above copyright | |
11 | * notice, this list of conditions and the following disclaimer in the | |
12 | * documentation and/or other materials provided with the distribution. | |
13 | * 3. All advertising materials mentioning features or use of this software | |
14 | * must display the following acknowledgement: | |
15 | * This product includes software developed by Paul Kranenburg. | |
16 | * 4. The name of the author may not be used to endorse or promote products | |
6a61ea88 | 17 | * derived from this software without specific prior written permission |
1136f72d PR |
18 | * |
19 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | |
20 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |
21 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | |
22 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | |
23 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
24 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
25 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
26 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
27 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
28 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
29 | * | |
1c8a0fd5 | 30 | * $Id: ldd.c,v 1.3 1994/02/13 20:42:43 jkh Exp $ |
1136f72d PR |
31 | */ |
32 | ||
1136f72d PR |
33 | #include <sys/types.h> |
34 | #include <sys/stat.h> | |
35 | #include <sys/file.h> | |
36 | #include <sys/time.h> | |
37 | #include <sys/resource.h> | |
1136f72d PR |
38 | #include <sys/wait.h> |
39 | #include <a.out.h> | |
1c8a0fd5 PR |
40 | #include <err.h> |
41 | #include <fcntl.h> | |
42 | #include <stdio.h> | |
43 | #include <stdlib.h> | |
44 | #include <string.h> | |
45 | #include <unistd.h> | |
1136f72d PR |
46 | |
47 | void | |
48 | usage() | |
49 | { | |
1c8a0fd5 PR |
50 | extern char *__progname; |
51 | ||
52 | fprintf(stderr, "Usage: %s <filename> ...\n", __progname); | |
53 | exit(1); | |
1136f72d PR |
54 | } |
55 | ||
56 | int | |
57 | main(argc, argv) | |
58 | int argc; | |
59 | char *argv[]; | |
60 | { | |
1c8a0fd5 | 61 | int rval; |
1136f72d | 62 | int c; |
1136f72d PR |
63 | |
64 | while ((c = getopt(argc, argv, "")) != EOF) { | |
65 | switch (c) { | |
66 | default: | |
67 | usage(); | |
1c8a0fd5 | 68 | /*NOTREACHED*/ |
1136f72d PR |
69 | } |
70 | } | |
71 | argc -= optind; | |
72 | argv += optind; | |
73 | ||
74 | if (argc <= 0) { | |
75 | usage(); | |
1c8a0fd5 | 76 | /*NOTREACHED*/ |
1136f72d PR |
77 | } |
78 | ||
79 | /* ld.so magic */ | |
80 | setenv("LD_TRACE_LOADED_OBJECTS", "", 1); | |
81 | ||
1c8a0fd5 | 82 | rval = 0; |
1136f72d PR |
83 | while (argc--) { |
84 | int fd; | |
85 | struct exec hdr; | |
86 | int status; | |
87 | ||
88 | if ((fd = open(*argv, O_RDONLY, 0)) < 0) { | |
1c8a0fd5 | 89 | warn("%s", *argv); |
1136f72d PR |
90 | rval |= 1; |
91 | argv++; | |
92 | continue; | |
93 | } | |
94 | if (read(fd, &hdr, sizeof hdr) != sizeof hdr || | |
1c8a0fd5 PR |
95 | !(N_GETFLAG(hdr) & EX_DYNAMIC) || |
96 | hdr.a_entry < __LDPGSZ) { | |
97 | ||
98 | warnx("%s: not a dynamic executable", *argv); | |
1136f72d PR |
99 | (void)close(fd); |
100 | rval |= 1; | |
101 | argv++; | |
102 | continue; | |
103 | } | |
104 | (void)close(fd); | |
105 | ||
106 | printf("%s:\n", *argv); | |
6a61ea88 | 107 | fflush(stdout); |
1136f72d PR |
108 | |
109 | switch (fork()) { | |
110 | case -1: | |
1c8a0fd5 | 111 | err(1, "fork"); |
1136f72d PR |
112 | break; |
113 | default: | |
1c8a0fd5 PR |
114 | if (wait(&status) <= 0) { |
115 | warn("wait"); | |
116 | rval |= 1; | |
117 | } else if (WIFSIGNALED(status)) { | |
1136f72d PR |
118 | fprintf(stderr, "%s: signal %d\n", |
119 | *argv, WTERMSIG(status)); | |
120 | rval |= 1; | |
121 | } else if (WIFEXITED(status) && WEXITSTATUS(status)) { | |
122 | fprintf(stderr, "%s: exit status %d\n", | |
123 | *argv, WEXITSTATUS(status)); | |
124 | rval |= 1; | |
125 | } | |
126 | break; | |
127 | case 0: | |
1c8a0fd5 | 128 | rval |= execl(*argv, *argv, NULL) != 0; |
1136f72d PR |
129 | perror(*argv); |
130 | _exit(1); | |
131 | } | |
132 | argv++; | |
133 | } | |
134 | ||
135 | return rval; | |
136 | } |