Use err(3). Add missing flags in usage string.
This commit is contained in:
Philippe Charnier
parent
e89ac5b08b
commit
885a85b6c1
@ -30,7 +30,7 @@
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)nm.1 8.1 (Berkeley) 6/6/93
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.\" $Id$
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.\" $Id: nm.1,v 1.7 1997/02/22 19:56:28 peter Exp $
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.\"
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.Dd June 6, 1993
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.Dt NM 1
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@ -39,9 +39,9 @@
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.Nm nm
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.Nd display name list (symbol table)
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.Sh SYNOPSIS
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.Nm nm
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.Nm
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.Op Fl agnoprtuwW
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.Ar
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.Op Ar
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.Sh DESCRIPTION
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The symbol table (name list) of each object in
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.Ar file(s)
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@ -121,6 +121,6 @@ The output is sorted alphabetically.
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.Xr stab 5
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.Sh HISTORY
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An
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.Nm nm
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.Nm
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command appeared in
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.At v1 .
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@ -30,7 +30,7 @@
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)nm.1 8.1 (Berkeley) 6/6/93
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.\" $Id$
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.\" $Id: nm.1,v 1.7 1997/02/22 19:56:28 peter Exp $
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.\"
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.Dd June 6, 1993
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.Dt NM 1
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@ -39,9 +39,9 @@
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.Nm nm
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.Nd display name list (symbol table)
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.Sh SYNOPSIS
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.Nm nm
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.Nm
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.Op Fl agnoprtuwW
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.Ar
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.Op Ar
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.Sh DESCRIPTION
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The symbol table (name list) of each object in
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.Ar file(s)
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@ -121,6 +121,6 @@ The output is sorted alphabetically.
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.Xr stab 5
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.Sh HISTORY
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An
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.Nm nm
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.Nm
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command appeared in
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.At v1 .
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@ -35,27 +35,31 @@
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*/
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#ifndef lint
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static char copyright[] =
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static const char copyright[] =
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"@(#) Copyright (c) 1989, 1993\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)nm.c 8.1 (Berkeley) 6/6/93";
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#endif
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static const char rcsid[] =
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"$Id$";
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#endif /* not lint */
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#include <sys/types.h>
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#include <a.out.h>
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#include <stab.h>
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#include <ar.h>
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#include <dirent.h>
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#include <ranlib.h>
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#include <unistd.h>
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#include <errno.h>
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#include <ctype.h>
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#include <dirent.h>
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#include <err.h>
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#include <ranlib.h>
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#include <stab.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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int ignore_bad_archive_entries = 1;
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int print_only_external_symbols;
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@ -76,7 +80,7 @@ int (*sfunc)() = fname;
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#define SYMBOL_BIND(x) (((x) >> 4) & 0xf)
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void *emalloc();
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void usage __P(( void ));
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static void usage __P(( void ));
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int process_file __P(( char * ));
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int show_archive __P(( char *, FILE * ));
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int show_objfile __P(( char *, FILE * ));
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@ -165,7 +169,7 @@ process_file(fname)
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char magic[SARMAG];
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if (!(fp = fopen(fname, "r"))) {
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(void)fprintf(stderr, "nm: cannot read %s.\n", fname);
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warnx("cannot read %s", fname);
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return(1);
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}
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@ -177,7 +181,7 @@ process_file(fname)
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* header, and skip back to the beginning
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*/
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if (fread((char *)&exec_head, sizeof(exec_head), (size_t)1, fp) != 1) {
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(void)fprintf(stderr, "nm: %s: bad format.\n", fname);
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warnx("%s: bad format", fname);
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(void)fclose(fp);
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return(1);
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}
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@ -187,8 +191,7 @@ process_file(fname)
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if (N_BADMAG(exec_head)) {
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if (fread(magic, sizeof(magic), (size_t)1, fp) != 1 ||
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strncmp(magic, ARMAG, SARMAG)) {
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(void)fprintf(stderr,
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"nm: %s: not object file or archive.\n", fname);
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warnx("%s: not object file or archive", fname);
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(void)fclose(fp);
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return(1);
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}
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@ -239,8 +242,7 @@ show_archive(fname, fp)
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while (fread((char *)&ar_head, sizeof(ar_head), (size_t)1, fp) == 1) {
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/* bad archive entry - stop processing this archive */
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if (strncmp(ar_head.ar_fmag, ARFMAG, sizeof(ar_head.ar_fmag))) {
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(void)fprintf(stderr,
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"nm: %s: bad format archive header", fname);
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warnx("%s: bad format archive header", fname);
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(void)free(name);
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return(1);
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}
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@ -261,12 +263,12 @@ show_archive(fname, fp)
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if (len <= 0 || len > MAXNAMLEN)
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{
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fprintf(stderr, "nm: Illegal length for format 1 long name.\n");
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warnx("illegal length for format 1 long name");
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goto skip;
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}
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if (fread(ar_name, 1, len, fp) != len)
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{
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(void)fprintf(stderr, "nm: EOF reading format 1 long name.\n");
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warnx("EOF reading format 1 long name");
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(void)free(name);
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return(1);
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}
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@ -296,15 +298,14 @@ show_archive(fname, fp)
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/* get and check current object's header */
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if (fread((char *)&exec_head, sizeof(exec_head), (size_t)1, fp) != 1) {
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(void)fprintf(stderr, "nm: %s: premature EOF.\n", name);
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warnx("%s: premature EOF", name);
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(void)free(name);
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return(1);
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}
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if (N_BADMAG(exec_head)) {
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if (!ignore_bad_archive_entries) {
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(void)fprintf(stderr,
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"nm: %s: bad format.\n", name);
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warnx("%s: bad format", name);
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rval = 1;
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}
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} else {
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@ -322,8 +323,7 @@ show_archive(fname, fp)
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#define even(x) (((x) + 1) & ~1)
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skip: if (fseek(fp, last_ar_off + even(atol(ar_head.ar_size)),
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SEEK_SET)) {
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(void)fprintf(stderr,
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"nm: %s: %s\n", fname, strerror(errno));
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warn("%s", fname);
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(void)free(name);
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return(1);
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}
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@ -351,8 +351,7 @@ show_objfile(objname, fp)
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/* read a.out header */
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if (fread((char *)&head, sizeof(head), (size_t)1, fp) != 1) {
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(void)fprintf(stderr,
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"nm: %s: cannot read header.\n", objname);
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warnx("%s: cannot read header", objname);
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return(1);
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}
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@ -361,28 +360,24 @@ show_objfile(objname, fp)
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* to the beginning of the a.out header
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*/
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if (fseek(fp, (long)-sizeof(head), SEEK_CUR)) {
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(void)fprintf(stderr,
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"nm: %s: %s\n", objname, strerror(errno));
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warn("%s", objname);
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return(1);
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}
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/* stop if this is no valid object file */
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if (N_BADMAG(head)) {
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(void)fprintf(stderr,
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"nm: %s: bad format.\n", objname);
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warnx("%s: bad format", objname);
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return(1);
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}
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/* stop if the object file contains no symbol table */
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if (!head.a_syms) {
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(void)fprintf(stderr,
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"nm: %s: no name list.\n", objname);
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warnx("%s: no name list", objname);
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return(1);
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}
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if (fseek(fp, (long)N_SYMOFF(head), SEEK_CUR)) {
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(void)fprintf(stderr,
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"nm: %s: %s\n", objname, strerror(errno));
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warn("%s", objname);
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return(1);
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}
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@ -390,8 +385,7 @@ show_objfile(objname, fp)
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names = emalloc((size_t)head.a_syms);
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nrawnames = head.a_syms / sizeof(*names);
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if (fread((char *)names, (size_t)head.a_syms, (size_t)1, fp) != 1) {
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(void)fprintf(stderr,
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"nm: %s: cannot read symbol table.\n", objname);
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warnx("%s: cannot read symbol table", objname);
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(void)free((char *)names);
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return(1);
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}
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@ -402,8 +396,7 @@ show_objfile(objname, fp)
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* _including_ the size specification itself.
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*/
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if (fread((char *)&stabsize, sizeof(stabsize), (size_t)1, fp) != 1) {
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(void)fprintf(stderr,
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"nm: %s: cannot read stab size.\n", objname);
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warnx("%s: cannot read stab size", objname);
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(void)free((char *)names);
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return(1);
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}
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@ -415,8 +408,7 @@ show_objfile(objname, fp)
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*/
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stabsize -= 4; /* we already have the size */
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if (fread(stab + 4, (size_t)stabsize, (size_t)1, fp) != 1) {
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(void)fprintf(stderr,
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"nm: %s: stab truncated..\n", objname);
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warnx("%s: stab truncated..", objname);
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(void)free((char *)names);
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(void)free(stab);
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return(1);
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@ -672,13 +664,12 @@ emalloc(size)
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/* NOSTRICT */
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if ( (p = malloc(size)) )
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return(p);
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(void)fprintf(stderr, "nm: %s\n", strerror(errno));
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exit(1);
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err(1, NULL);
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}
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void
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static void
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usage(void)
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{
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(void)fprintf(stderr, "usage: nm [-agnopruw] [file ...]\n");
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(void)fprintf(stderr, "usage: nm [-agnoprtuwW] [file ...]\n");
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exit(1);
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}
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