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/*
* Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it would be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* Further, this software is distributed without any warranty that it is
* free of the rightful claim of any third person regarding infringement
* or the like. Any license provided herein, whether implied or
* otherwise, applies only to this software file. Patent licenses, if
* any, provided herein do not apply to combinations of this program with
* other software, or any other product whatsoever.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write the Free Software Foundation, Inc., 59
* Temple Place - Suite 330, Boston MA 02111-1307, USA.
*
* Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
* Mountain View, CA 94043, or:
*
* http://www.sgi.com
*
* For further information regarding this notice, see:
*
* http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
*/
#include <asm/types.h>
#include <sys/types.h>
#include <sys/param.h>
#include <sys/stat.h>
#include <stdio.h>
#include <fcntl.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <attributes.h>
#define SETOP 1 /* do a SET operation */
#define GETOP 2 /* do a GET operation */
#define REMOVEOP 3 /* do a REMOVE operation */
#define LISTOP 4 /* do a LIST operation */
static char *progname;
void
usage(void)
{
fprintf(stderr,
"Usage: %s [-LRq] -s attrname [-V attrvalue] pathname # set value\n"
" %s [-LRq] -g attrname pathname # get value\n"
" %s [-LRq] -r attrname pathname # remove attr\n"
" %s [-LRq] -l pathname # list attrs\n"
" -s reads a value from stdin and -g writes a value to stdout\n",
progname, progname, progname, progname);
exit(1);
}
int
main(int argc, char **argv)
{
char *attrname, *attrvalue, *filename, *buffer;
int attrlength;
int opflag, ch, error, follow, verbose, rootflag, i;
attrlist_t *alist;
attrlist_ent_t *aep;
attrlist_cursor_t cursor;
progname = basename(argv[0]);
/*
* Pick up and validate the arguments.
*/
verbose = 1;
follow = opflag = rootflag = 0;
attrname = attrvalue = NULL;
while ((ch = getopt(argc, argv, "s:V:g:r:lqLR")) != EOF) {
switch (ch) {
case 's':
if ((opflag != 0) && (opflag != SETOP)) {
fprintf(stderr,
"Only one of -s, -g, -r, or -l allowed\n");
usage();
}
opflag = SETOP;
attrname = optarg;
break;
case 'V':
if ((opflag != 0) && (opflag != SETOP)) {
fprintf(stderr,
"-V only allowed with -s\n");
usage();
}
opflag = SETOP;
attrvalue = optarg;
break;
case 'g':
if (opflag) {
fprintf(stderr,
"Only one of -s, -g, -r, or -l allowed\n");
usage();
}
opflag = GETOP;
attrname = optarg;
break;
case 'r':
if (opflag) {
fprintf(stderr,
"Only one of -s, -g, -r, or -l allowed\n");
usage();
}
opflag = REMOVEOP;
attrname = optarg;
break;
case 'l':
if (opflag) {
fprintf(stderr,
"Only one of -s, -g, -r, or -l allowed\n");
usage();
}
opflag = LISTOP;
break;
case 'L':
follow++;
break;
case 'R':
rootflag++;
break;
case 'q':
verbose = 0;
break;
default:
fprintf(stderr, "Unrecognized option: %c\n", (char)ch);
usage();
break;
}
}
if (optind != argc-1) {
fprintf(stderr, "A filename to operate on is required\n");
usage();
}
filename = argv[optind];
/*
* Break out into option-specific processing.
*/
switch (opflag) {
case SETOP:
if (attrvalue == NULL) {
attrvalue = malloc(ATTR_MAX_VALUELEN);
if (attrvalue == NULL) {
perror("malloc");
exit(1);
}
attrlength =
fread(attrvalue, 1, ATTR_MAX_VALUELEN, stdin);
} else {
attrlength = strlen(attrvalue);
}
error = attr_set(filename, attrname, attrvalue,
attrlength,
(!follow ? ATTR_DONTFOLLOW : 0) |
(rootflag ? ATTR_ROOT : 0));
if (error) {
perror("attr_set");
fprintf(stderr, "Could not set \"%s\" for %s\n",
attrname, filename);
exit(1);
}
if (verbose) {
printf("Attribute \"%s\" set to a %d byte value "
"for %s:\n",
attrname, attrlength, filename);
fwrite(attrvalue, 1, attrlength, stdout);
printf("\n");
}
break;
case GETOP:
attrvalue = malloc(ATTR_MAX_VALUELEN);
if (attrvalue == NULL) {
perror("malloc");
exit(1);
}
attrlength = ATTR_MAX_VALUELEN;
error = attr_get(filename, attrname, attrvalue,
&attrlength,
(!follow ? ATTR_DONTFOLLOW : 0) |
(rootflag ? ATTR_ROOT : 0));
if (error) {
perror("attr_get");
fprintf(stderr, "Could not get \"%s\" for %s\n",
attrname, filename);
exit(1);
}
if (verbose) {
printf("Attribute \"%s\" had a %d byte value for %s:\n",
attrname, attrlength, filename);
}
fwrite(attrvalue, 1, attrlength, stdout);
if (verbose) {
printf("\n");
}
break;
case REMOVEOP:
error = attr_remove(filename, attrname,
(!follow ? ATTR_DONTFOLLOW : 0) |
(rootflag ? ATTR_ROOT : 0));
if (error) {
perror("attr_remove");
fprintf(stderr, "Could not remove \"%s\" for %s\n",
attrname, filename);
exit(1);
}
break;
case LISTOP:
if ((buffer = malloc(ATTR_MAX_VALUELEN)) == NULL) {
perror("malloc");
exit(1);
}
memset((char *)&cursor, 0, sizeof(cursor));
do {
error = attr_list(filename, buffer, ATTR_MAX_VALUELEN,
(!follow ? ATTR_DONTFOLLOW : 0) |
(rootflag ? ATTR_ROOT : 0),
&cursor);
if (error) {
perror("attr_list");
fprintf(stderr, "Could not list attributes for %s\n",
filename);
exit(1);
}
alist = (attrlist_t *)buffer;
for (i = 0; i < alist->al_count; i++) {
aep = (attrlist_ent_t *)&buffer[ alist->al_offset[i] ];
if (verbose) {
printf("Attribute \"%s\" has a %d byte value for %s\n",
aep->a_name,
aep->a_valuelen,
filename);
} else {
printf("%s\n", aep->a_name);
}
}
} while (alist->al_more);
break;
default:
fprintf(stderr,
"At least one of -s, -g, -r, or -l is required\n");
usage();
break;
}
return(0);
}
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