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author | paul <paul@FreeBSD.org> | 1993-11-03 23:41:59 +0000 |
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committer | paul <paul@FreeBSD.org> | 1993-11-03 23:41:59 +0000 |
commit | 66fdbc00cfad3be604d07da78b916f4c04f96dbc (patch) | |
tree | ae9c655d7f7352058dd703d580c1f70430c1e5f7 /usr.bin/ldd/ldd.c | |
parent | 7f9e326f196003559252a070bd773ee08a76b244 (diff) | |
download | FreeBSD-src-66fdbc00cfad3be604d07da78b916f4c04f96dbc.zip FreeBSD-src-66fdbc00cfad3be604d07da78b916f4c04f96dbc.tar.gz |
Imported NetBSD's ld for shared libs.
Diffstat (limited to 'usr.bin/ldd/ldd.c')
-rw-r--r-- | usr.bin/ldd/ldd.c | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/usr.bin/ldd/ldd.c b/usr.bin/ldd/ldd.c new file mode 100644 index 0000000..65b0bc1 --- /dev/null +++ b/usr.bin/ldd/ldd.c @@ -0,0 +1,139 @@ +/* + * Copyright (c) 1993 Paul Kranenburg + * 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 Paul Kranenburg. + * 4. The name of the author may not be used to endorse or promote products + * derived from this software withough specific prior written permission + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. + * + * $Id: ldd.c,v 1.3 1993/10/31 14:54:29 pk Exp $ + */ + +#include <sys/param.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <errno.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/file.h> +#include <sys/time.h> +#include <sys/resource.h> +#include <fcntl.h> +#include <sys/wait.h> +#include <a.out.h> + +static char *progname; + +void +usage() +{ + fprintf(stderr, "Usage: %s <filename> ...\n", progname); +} + +int +main(argc, argv) +int argc; +char *argv[]; +{ + int rval = 0; + int c; + extern int optind; + + if ((progname = strrchr(argv[0], '/')) == NULL) + progname = argv[0]; + else + progname++; + + while ((c = getopt(argc, argv, "")) != EOF) { + switch (c) { + default: + usage(); + exit(1); + } + } + argc -= optind; + argv += optind; + + if (argc <= 0) { + usage(); + exit(1); + } + + /* ld.so magic */ + setenv("LD_TRACE_LOADED_OBJECTS", "", 1); + + while (argc--) { + int fd; + struct exec hdr; + int status; + + if ((fd = open(*argv, O_RDONLY, 0)) < 0) { + perror(*argv); + rval |= 1; + argv++; + continue; + } + if (read(fd, &hdr, sizeof hdr) != sizeof hdr || + !(N_GETFLAG(hdr) & EX_DYNAMIC)) { + fprintf(stderr, "%s: not a dynamic executable\n", + *argv); + (void)close(fd); + rval |= 1; + argv++; + continue; + } + (void)close(fd); + + printf("%s:\n", *argv); + + switch (fork()) { + case -1: + perror("fork"); + exit(1); + break; + default: + if (wait(&status) <= 0) + perror("wait"); + + if (WIFSIGNALED(status)) { + fprintf(stderr, "%s: signal %d\n", + *argv, WTERMSIG(status)); + rval |= 1; + } else if (WIFEXITED(status) && WEXITSTATUS(status)) { + fprintf(stderr, "%s: exit status %d\n", + *argv, WEXITSTATUS(status)); + rval |= 1; + } + break; + case 0: + rval != execl(*argv, *argv, NULL) != 0; + perror(*argv); + _exit(1); + } + argv++; + } + + return rval; +} |