int sys_lremovexattr (const char *path, const char *uname)
{
const char *name = prefix(uname);
#if defined(HAVE_LREMOVEXATTR)
return lremovexattr(path, name);
#elif defined(HAVE_REMOVEXATTR) && defined(XATTR_ADD_OPT)
int options = XATTR_NOFOLLOW;
return removexattr(path, name, options);
#elif defined(HAVE_LREMOVEEA)
return lremoveea(path, name);
#elif defined(HAVE_EXTATTR_DELETE_LINK)
return extattr_delete_link(path, EXTATTR_NAMESPACE_USER, uname);
#elif defined(HAVE_ATTR_REMOVE)
int flags = ATTR_DONTFOLLOW;
char *attrname = strchr(name,'.') + 1;
if (strncmp(name, "system", 6) == 0) flags |= ATTR_ROOT;
return attr_remove(path, attrname, flags);
#elif defined(HAVE_ATTROPEN)
int ret = -1;
int attrdirfd = solaris_attropen(path, ".", O_RDONLY|AT_SYMLINK_NOFOLLOW, 0);
if (attrdirfd >= 0) {
ret = solaris_unlinkat(attrdirfd, name);
close(attrdirfd);
}
return ret;
#else
errno = ENOSYS;
return -1;
#endif
}
static ssize_t xattr_removexattr(const char *path, const char *name,
int options)
{
if (!(options == 0 ||
options == XATTR_XATTR_NOFOLLOW)) {
return -1;
}
if (options & XATTR_XATTR_NOFOLLOW) {
return extattr_delete_link(path, EXTATTR_NAMESPACE_USER, name);
}
else {
return extattr_delete_file(path, EXTATTR_NAMESPACE_USER, name);
}
}
int
main(int argc, char *argv[])
{
char *buf, *visbuf, *p;
const char *options, *attrname;
size_t len;
ssize_t ret;
int buflen, visbuflen, ch, error, i, arg_counter, attrnamespace,
minargc;
int flag_force = 0;
int flag_nofollow = 0;
int flag_null = 0;
int flag_quiet = 0;
int flag_string = 0;
int flag_hex = 0;
visbuflen = buflen = 0;
visbuf = buf = NULL;
p = basename(argv[0]);
if (p == NULL)
p = argv[0];
if (!strcmp(p, "getextattr")) {
what = EAGET;
options = "fhqsx";
minargc = 3;
} else if (!strcmp(p, "setextattr")) {
what = EASET;
options = "fhnq";
minargc = 4;
} else if (!strcmp(p, "rmextattr")) {
what = EARM;
options = "fhq";
minargc = 3;
} else if (!strcmp(p, "lsextattr")) {
what = EALS;
options = "fhq";
minargc = 2;
} else {
usage();
}
while ((ch = getopt(argc, argv, options)) != -1) {
switch (ch) {
case 'f':
flag_force = 1;
break;
case 'h':
flag_nofollow = 1;
break;
case 'n':
flag_null = 1;
break;
case 'q':
flag_quiet = 1;
break;
case 's':
flag_string = 1;
break;
case 'x':
flag_hex = 1;
break;
case '?':
default:
usage();
}
}
argc -= optind;
argv += optind;
if (argc < minargc)
usage();
error = extattr_string_to_namespace(argv[0], &attrnamespace);
if (error)
err(-1, "%s", argv[0]);
argc--; argv++;
if (what != EALS) {
attrname = argv[0];
argc--; argv++;
} else
attrname = NULL;
if (what == EASET) {
mkbuf(&buf, &buflen, strlen(argv[0]) + 1);
strcpy(buf, argv[0]);
argc--; argv++;
}
for (arg_counter = 0; arg_counter < argc; arg_counter++) {
switch (what) {
case EARM:
if (flag_nofollow)
error = extattr_delete_link(argv[arg_counter],
attrnamespace, attrname);
else
error = extattr_delete_file(argv[arg_counter],
attrnamespace, attrname);
if (error >= 0)
continue;
break;
case EASET:
len = strlen(buf) + flag_null;
if (flag_nofollow)
ret = extattr_set_link(argv[arg_counter],
attrnamespace, attrname, buf, len);
else
ret = extattr_set_file(argv[arg_counter],
attrnamespace, attrname, buf, len);
if (ret >= 0) {
if ((size_t)ret != len && !flag_quiet) {
warnx("Set %zd bytes of %zu for %s",
ret, len, attrname);
}
continue;
}
break;
case EALS:
if (flag_nofollow)
ret = extattr_list_link(argv[arg_counter],
attrnamespace, NULL, 0);
else
ret = extattr_list_file(argv[arg_counter],
attrnamespace, NULL, 0);
if (ret < 0)
break;
mkbuf(&buf, &buflen, ret);
if (flag_nofollow)
ret = extattr_list_link(argv[arg_counter],
attrnamespace, buf, buflen);
else
ret = extattr_list_file(argv[arg_counter],
attrnamespace, buf, buflen);
if (ret < 0)
break;
if (!flag_quiet)
printf("%s\t", argv[arg_counter]);
for (i = 0; i < ret; i += ch + 1) {
/* The attribute name length is unsigned. */
ch = (unsigned char)buf[i];
printf("%s%*.*s", i ? "\t" : "",
ch, ch, buf + i + 1);
}
if (!flag_quiet || ret > 0)
printf("\n");
continue;
case EAGET:
if (flag_nofollow)
ret = extattr_get_link(argv[arg_counter],
attrnamespace, attrname, NULL, 0);
else
ret = extattr_get_file(argv[arg_counter],
attrnamespace, attrname, NULL, 0);
if (ret < 0)
break;
mkbuf(&buf, &buflen, ret);
if (flag_nofollow)
ret = extattr_get_link(argv[arg_counter],
attrnamespace, attrname, buf, buflen);
else
ret = extattr_get_file(argv[arg_counter],
attrnamespace, attrname, buf, buflen);
if (ret < 0)
break;
if (!flag_quiet)
printf("%s\t", argv[arg_counter]);
if (flag_string) {
mkbuf(&visbuf, &visbuflen, ret * 4 + 1);
strvisx(visbuf, buf, ret,
VIS_SAFE | VIS_WHITE);
printf("\"%s\"\n", visbuf);
continue;
} else if (flag_hex) {
for (i = 0; i < ret; i++)
printf("%s%02x", i ? " " : "",
buf[i]);
printf("\n");
continue;
} else {
fwrite(buf, ret, 1, stdout);
printf("\n");
continue;
}
default:
break;
}
if (!flag_quiet)
warn("%s: failed", argv[arg_counter]);
if (flag_force)
continue;
return(1);
}
return (0);
}
int sys_lremovexattr(const char *path, const char *name)
{
return extattr_delete_link(path, EXTATTR_NAMESPACE_USER, name);
}
