glibc/inet/ruserpass.c
Ulrich Drepper 86187531d3 Update.
1997-11-06 00:06  Ulrich Drepper  <drepper@cygnus.com>

	* argp/argp-help.c: Optimize a bit by using mempcpy.
	* elf/dl-load.c: Likewise.
	* elf/dl-lookup.c: Likewise.
	* inet/rcmd.c: Likewise.
	* io/ftw.c: Likewise.
	* libio/fileops.c: Likewise.
	* libio/genops.c: Likewise.
	* libio/obprintf.c: Likewise.
	* nss/nsswitch.c: Likewise.
	* posix/execvp.c: Likewise.
	* posix/getopt.c: Likewise.
	* posix/glob.c: Likewise.
	* posix/wordexp.c: Likewise.
	* stdio-common/vfprintf.c: Likewise.
	* stdlib/canonicalize.c: Likewise.
	* stdlib/msort.c: Likewise.
	* string/argz-replace.c: Likewise.
	* sysdeps/generic/putenv.c: Likewise.
	* sysdeps/generic/setenv.c: Likewise.
	* sysdeps/posix/getcwd.c: Likewise.
	* sysdeps/posix/ttyname.c: Likewise.
	* sysdeps/posix/writev.c: Likewise.
	* time/strftime.c: Likewise.
	* time/tzfile.c: Likewise.

	* login/utmp_daemon.c: Use memcpy instead of strcpy where possible.
	* sunrpc/svcauth_des.c: Likewise.
	* sysdeps/unix/sysv/linux/gethostname.c: Likewise.

	* misc/tsearch.c: Use memcpy return value if possible.
	* posix/regex.c: Likewise.
	* sysdeps/unix/readdir_r.c: Likewise.
	* wcsmbc/wcsdup.c: Likewise.

	* nss/digits_dots.c: Little optimization.

	* inet/ruserpass.c (ruserpass): Optimize by using stpcpy.
	(struct toktab): Make tokstr field a const char *.

	* elf/dl-profile.c: Fix typo.

	* inet/ether_ntoh.c: Don't use relative #include path.
	* inet/gethstbynm.c: Likewise.
	* resolv/inet_pton.c: Likewise.
	* shadow/sgetspent_r.c: Likewise.

	* libio/oldfileops.c (_IO_old_file_jumps): Use correct sync and write
	callbacks.  Patch by NIIBE Yutaka <gniibe@mri.co.jp>.

	* posix/confstr.c: Correct string for _CS_LFS_CFLAGS.
	Handle _CS_XBS5_* constants.
	* posix/unistd.h: Add comment describing _XBS5_* constants.
	* sysdeps/generic/bits/confname.h: Add _CS_XBS5_* constants.

	* posix/regex.c: Indent preprocessor code.

	* posix/wordexp.c: Using _itoa_word instead of sprintf.

	* stdlib/canonicalize.c: Avoid unnecessary copying.  Handle NULL
	and "" arguments correctly according to SUS.
	* stdlib/test-canon.c: Test "" and NULL argument handling.

	* sysdeps/posix/writev.c: Correct condition to leave the loop.

1997-11-05 18:13  Ulrich Drepper  <drepper@cygnus.com>

	* nss/getXXbyYY.c: Set buffer to NULL if realloc fails so that possible
	next call starts with malloc again.
	Proposed by Joe Keane <jgk@jgk.org>.

1997-11-04 23:57  Ulrich Drepper  <drepper@cygnus.com>

	* configure.in: Correct gcc -pipe test.
	Patch by Zack Weinberg <zack@rabi.phys.columbia.edu>.

	* posix/glob.c: Cleanups.  Patch by H.J. Lu <hjl@lucon.org>.

1997-11-04  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* manual/creature.texi (Feature Test Macros): Add _POSIX_C_SOURCE
	definition.
1997-11-06 00:02:46 +00:00

297 lines
7.4 KiB
C

/*
* Copyright (c) 1985, 1993, 1994
* The Regents of the University of California. 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 the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*/
#ifndef lint
static char sccsid[] = "@(#)ruserpass.c 8.3 (Berkeley) 4/2/94";
#endif /* not lint */
#include <sys/types.h>
#include <sys/stat.h>
#include <assert.h>
#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
/* #include "ftp_var.h" */
static int token __P((void));
static FILE *cfile;
#define DEFAULT 1
#define LOGIN 2
#define PASSWD 3
#define ACCOUNT 4
#define MACDEF 5
#define ID 10
#define MACHINE 11
static char tokval[100];
static struct toktab {
const char *tokstr;
int tval;
} toktab[]= {
{ "default", DEFAULT },
{ "login", LOGIN },
{ "password", PASSWD },
{ "passwd", PASSWD },
{ "account", ACCOUNT },
{ "machine", MACHINE },
{ "macdef", MACDEF },
{ NULL, 0 }
};
int
ruserpass(host, aname, apass)
char *host, **aname, **apass;
{
char *hdir, *buf, *tmp;
char myname[1024], *mydomain;
int t, i, c, usedefault = 0;
struct stat stb;
hdir = __secure_getenv("HOME");
if (hdir == NULL) {
/* If we can't get HOME, fail instead of trying ".",
which is no improvement. This really should call
getpwuid(getuid()). */
/*hdir = ".";*/
return -1;
}
buf = alloca (strlen (hdir) + 8);
__stpcpy (__stpcpy (buf, hdir), "/.netrc");
cfile = fopen(buf, "r");
if (cfile == NULL) {
if (errno != ENOENT)
warn("%s", buf);
return (0);
}
if (gethostname(myname, sizeof(myname)) < 0)
myname[0] = '\0';
if ((mydomain = strchr(myname, '.')) == NULL)
mydomain = "";
next:
while ((t = token())) switch(t) {
case DEFAULT:
usedefault = 1;
/* FALL THROUGH */
case MACHINE:
if (!usedefault) {
if (token() != ID)
continue;
/*
* Allow match either for user's input host name
* or official hostname. Also allow match of
* incompletely-specified host in local domain.
*/
if (strcasecmp(host, tokval) == 0)
goto match;
/* if (strcasecmp(hostname, tokval) == 0)
goto match;
if ((tmp = strchr(hostname, '.')) != NULL &&
strcasecmp(tmp, mydomain) == 0 &&
strncasecmp(hostname, tokval, tmp-hostname) == 0 &&
tokval[tmp - hostname] == '\0')
goto match; */
if ((tmp = strchr(host, '.')) != NULL &&
strcasecmp(tmp, mydomain) == 0 &&
strncasecmp(host, tokval, tmp - host) == 0 &&
tokval[tmp - host] == '\0')
goto match;
continue;
}
match:
while ((t = token()) && t != MACHINE && t != DEFAULT) switch(t) {
case LOGIN:
if (token())
if (*aname == 0) {
*aname = malloc((unsigned) strlen(tokval) + 1);
(void) strcpy(*aname, tokval);
} else {
if (strcmp(*aname, tokval))
goto next;
}
break;
case PASSWD:
if (strcmp(*aname, "anonymous") &&
fstat(fileno(cfile), &stb) >= 0 &&
(stb.st_mode & 077) != 0) {
warnx(_("Error: .netrc file is readable by others."));
warnx(_("Remove password or make file unreadable by others."));
goto bad;
}
if (token() && *apass == 0) {
*apass = malloc((unsigned) strlen(tokval) + 1);
(void) strcpy(*apass, tokval);
}
break;
case ACCOUNT:
#if 0
if (fstat(fileno(cfile), &stb) >= 0
&& (stb.st_mode & 077) != 0) {
warnx("Error: .netrc file is readable by others.");
warnx("Remove account or make file unreadable by others.");
goto bad;
}
if (token() && *aacct == 0) {
*aacct = malloc((unsigned) strlen(tokval) + 1);
(void) strcpy(*aacct, tokval);
}
#endif
break;
case MACDEF:
#if 0
if (proxy) {
(void) fclose(cfile);
return (0);
}
while ((c=getc(cfile)) != EOF && c == ' ' || c == '\t');
if (c == EOF || c == '\n') {
printf("Missing macdef name argument.\n");
goto bad;
}
if (macnum == 16) {
printf("Limit of 16 macros have already been defined\n");
goto bad;
}
tmp = macros[macnum].mac_name;
*tmp++ = c;
for (i=0; i < 8 && (c=getc(cfile)) != EOF &&
!isspace(c); ++i) {
*tmp++ = c;
}
if (c == EOF) {
printf("Macro definition missing null line terminator.\n");
goto bad;
}
*tmp = '\0';
if (c != '\n') {
while ((c=getc(cfile)) != EOF && c != '\n');
}
if (c == EOF) {
printf("Macro definition missing null line terminator.\n");
goto bad;
}
if (macnum == 0) {
macros[macnum].mac_start = macbuf;
}
else {
macros[macnum].mac_start = macros[macnum-1].mac_end + 1;
}
tmp = macros[macnum].mac_start;
while (tmp != macbuf + 4096) {
if ((c=getc(cfile)) == EOF) {
printf("Macro definition missing null line terminator.\n");
goto bad;
}
*tmp = c;
if (*tmp == '\n') {
if (*(tmp-1) == '\0') {
macros[macnum++].mac_end = tmp - 1;
break;
}
*tmp = '\0';
}
tmp++;
}
if (tmp == macbuf + 4096) {
printf("4K macro buffer exceeded\n");
goto bad;
}
#endif
break;
default:
warnx(_("Unknown .netrc keyword %s"), tokval);
break;
}
goto done;
}
done:
(void) fclose(cfile);
return (0);
bad:
(void) fclose(cfile);
return (-1);
}
static int
token()
{
char *cp;
int c;
struct toktab *t;
if (feof(cfile) || ferror(cfile))
return (0);
while ((c = getc(cfile)) != EOF &&
(c == '\n' || c == '\t' || c == ' ' || c == ','))
continue;
if (c == EOF)
return (0);
cp = tokval;
if (c == '"') {
while ((c = getc(cfile)) != EOF && c != '"') {
if (c == '\\')
c = getc(cfile);
*cp++ = c;
}
} else {
*cp++ = c;
while ((c = getc(cfile)) != EOF
&& c != '\n' && c != '\t' && c != ' ' && c != ',') {
if (c == '\\')
c = getc(cfile);
*cp++ = c;
}
}
*cp = 0;
if (tokval[0] == 0)
return (0);
for (t = toktab; t->tokstr; t++)
if (!strcmp(t->tokstr, tokval))
return (t->tval);
return (ID);
}