subr.c revision 9c9af2590af49bb395bc8d2eace0f2d4ea16d165
/*
* Copyright (c) 2000, Boris Popov
* 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 Boris Popov.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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: subr.c,v 1.19 2005/02/09 00:23:45 lindak Exp $
*/
#include <sys/types.h>
#include <sys/errno.h>
#include <sys/time.h>
#include <unistd.h>
#include <ctype.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <errno.h>
#include <sysexits.h>
#include <libintl.h>
#include <netsmb/netbios.h>
#include <netsmb/smb_lib.h>
#include <netsmb/nb_lib.h>
#include <cflib.h>
#include <err.h>
uid_t real_uid, eff_uid;
static int smblib_initialized;
struct rcfile *smb_rc;
int
smb_lib_init(void)
{
int error;
if (smblib_initialized)
return (0);
if ((error = nls_setlocale("")) != 0) {
fprintf(stdout, dgettext(TEXT_DOMAIN,
"%s: can't initialise locale\n"), __progname);
return (error);
}
smblib_initialized++;
return (0);
}
/*
* Private version of strerror(3C) that
* knows our special error codes.
*/
char *
smb_strerror(int err)
{
char *msg;
switch (err) {
case EBADRPC:
msg = dgettext(TEXT_DOMAIN,
"remote call failed");
break;
case EAUTH:
msg = dgettext(TEXT_DOMAIN,
"authentication failed");
break;
default:
msg = strerror(err);
break;
}
return (msg);
}
/*
* Print a (descriptive) error message
* error values:
* 0 - no specific error code available;
* 1..32767 - system error
*/
void
smb_error(const char *fmt, int error, ...) {
va_list ap;
const char *cp;
int errtype;
fprintf(stderr, "%s: ", __progname);
va_start(ap, error);
vfprintf(stderr, fmt, ap);
va_end(ap);
if (error == -1) {
error = errno;
errtype = SMB_SYS_ERROR;
} else {
errtype = error & SMB_ERRTYPE_MASK;
error &= ~SMB_ERRTYPE_MASK;
}
switch (errtype) {
case SMB_SYS_ERROR:
if (error)
fprintf(stderr, ": syserr = %s\n", smb_strerror(error));
else
fprintf(stderr, "\n");
break;
case SMB_RAP_ERROR:
fprintf(stderr, ": raperr = %d (0x%04x)\n", error, error);
break;
case SMB_NB_ERROR:
cp = nb_strerror(error);
if (cp == NULL)
fprintf(stderr, ": nberr = unknown (0x%04x)\n", error);
else
fprintf(stderr, ": nberr = %s\n", cp);
break;
default:
fprintf(stderr, "\n");
}
}
char *
smb_printb(char *dest, int flags, const struct smb_bitname *bnp) {
int first = 1;
strcpy(dest, "<");
for (; bnp->bn_bit; bnp++) {
if (flags & bnp->bn_bit) {
strcat(dest, bnp->bn_name);
first = 0;
}
if (!first && (flags & bnp[1].bn_bit))
strcat(dest, "|");
}
strcat(dest, ">");
return (dest);
}
extern int home_nsmbrc;
#ifdef DEBUG
#include "queue.h"
#include "rcfile_priv.h"
struct rcsection *rc_findsect(struct rcfile *rcp, const char *sectname);
struct rckey *rc_sect_findkey(struct rcsection *rsp, const char *keyname);
void
dump_props(char *where)
{
struct rcsection *rsp = NULL;
struct rckey *rkp = NULL;
printf("Settings %s\n", where);
SLIST_FOREACH(rsp, &smb_rc->rf_sect, rs_next) {
printf("section=%s\n", rsp->rs_name);
fflush(stdout);
SLIST_FOREACH(rkp, &rsp->rs_keys, rk_next) {
printf(" key=%s, value=%s\n",
rkp->rk_name, rkp->rk_value);
fflush(stdout);
}
}
}
#endif
/*
* first read ~/.smbrc, next try to merge SMB_CFG_FILE - if that fails
* because SMB_CFG_FILE doesn't exist, try to merge OLD_SMB_CFG_FILE
*/
int
smb_open_rcfile(struct smb_ctx *ctx)
{
char *home, *fn;
int error, len;
smb_rc = NULL;
#ifdef DEPRECATED
fn = SMB_CFG_FILE;
error = rc_merge(fn, &smb_rc);
if (error == ENOENT) {
/*
* OK, try to read a config file in the old location.
*/
fn = OLD_SMB_CFG_FILE;
error = rc_merge(fn, &smb_rc);
}
#endif
fn = "/usr/sbin/sharectl get smbfs";
error = rc_merge_pipe(fn, &smb_rc);
if (error != 0 && error != ENOENT)
fprintf(stderr, dgettext(TEXT_DOMAIN,
"Can't open %s: %s\n"), fn, smb_strerror(errno));
#ifdef DEBUG
if (smb_debug)
dump_props("after reading global repository");
#endif
home = getenv("HOME");
if (home == NULL && ctx && ctx->ct_home)
home = ctx->ct_home;
if (home) {
len = strlen(home) + 20;
fn = malloc(len);
snprintf(fn, len, "%s/.nsmbrc", home);
home_nsmbrc = 1;
error = rc_merge(fn, &smb_rc);
if (error != 0 && error != ENOENT) {
fprintf(stderr, dgettext(TEXT_DOMAIN,
"Can't open %s: %s\n"), fn, smb_strerror(errno));
}
free(fn);
}
home_nsmbrc = 0;
#ifdef DEBUG
if (smb_debug)
dump_props("after reading user settings");
#endif
if (smb_rc == NULL) {
return (ENOENT);
}
return (0);
}
void
smb_simplecrypt(char *dst, const char *src)
{
int ch, pos;
*dst++ = '$';
*dst++ = '$';
*dst++ = '1';
pos = 27;
while (*src) {
ch = *src++;
if (isascii(ch))
ch = (isupper(ch) ? ('A' + (ch - 'A' + 13) % 26) :
islower(ch) ? ('a' + (ch - 'a' + 13) % 26) : ch);
ch ^= pos;
pos += 13;
sprintf(dst, "%02x", ch);
dst += 2;
}
*dst = 0;
}
int
smb_simpledecrypt(char *dst, const char *src)
{
char *ep, hexval[3];
int len, ch, pos;
if (strncmp(src, "$$1", 3) != 0)
return (EINVAL);
src += 3;
len = strlen(src);
if (len & 1)
return (EINVAL);
len /= 2;
hexval[2] = 0;
pos = 27;
while (len--) {
hexval[0] = *src++;
hexval[1] = *src++;
ch = strtoul(hexval, &ep, 16);
if (*ep != 0)
return (EINVAL);
ch ^= pos;
pos += 13;
if (isascii(ch))
ch = (isupper(ch) ? ('A' + (ch - 'A' + 13) % 26) :
islower(ch) ? ('a' + (ch - 'a' + 13) % 26) : ch);
*dst++ = ch;
}
*dst = 0;
return (0);
}
#undef __progname
char *__progname = NULL;
char *
smb_getprogname()
{
char *p;
if (__progname == NULL) {
__progname = (char *)getexecname();
if ((p = strrchr(__progname, '/')) != 0)
__progname = p + 1;
}
return (__progname);
}