[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/build/uClibc/libc/inet/rpc/rcmd.c b/ap/build/uClibc/libc/inet/rpc/rcmd.c
new file mode 100644
index 0000000..fb1bd93
--- /dev/null
+++ b/ap/build/uClibc/libc/inet/rpc/rcmd.c
@@ -0,0 +1,689 @@
+/*
+ * Copyright (C) 1998 WIDE Project.
+ * 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. Neither the name of the project 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 PROJECT 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 PROJECT 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.
+ */
+/*
+ * Copyright (c) 1983, 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.
+ * 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.
+ */
+
+#if 0
+static char sccsid[] = "@(#)rcmd.c 8.3 (Berkeley) 3/26/94";
+#endif /* LIBC_SCCS and not lint */
+
+#define __UCLIBC_HIDE_DEPRECATED__
+#include <features.h>
+#include <sys/param.h>
+#include <sys/poll.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include <signal.h>
+#include <fcntl.h>
+#include <netdb.h>
+#include <unistd.h>
+#include <pwd.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdio_ext.h>
+#include <ctype.h>
+#include <string.h>
+#include <libintl.h>
+#include <stdlib.h>
+#ifdef __UCLIBC_HAS_WCHAR__
+#include <wchar.h>
+#endif
+#include <sys/uio.h>
+#include <bits/uClibc_alloc.h>
+
+
+/* some forward declarations */
+static int __ivaliduser2(FILE *hostf, u_int32_t raddr,
+ const char *luser, const char *ruser, const char *rhost);
+static int iruserok2 (u_int32_t raddr, int superuser, const char *ruser,
+ const char *luser, const char *rhost);
+
+
+int rcmd(char **ahost, u_short rport, const char *locuser, const char *remuser,
+ const char *cmd, int *fd2p)
+{
+#ifdef __UCLIBC_HAS_REENTRANT_RPC__
+ int herr;
+ struct hostent hostbuf;
+ size_t hstbuflen;
+ char *tmphstbuf;
+#endif
+ struct hostent *hp;
+ struct sockaddr_in sin, from;
+ struct pollfd pfd[2];
+ int32_t oldmask;
+ pid_t pid;
+ int s, lport, timo;
+ char c;
+
+ pid = getpid();
+
+#ifdef __UCLIBC_HAS_REENTRANT_RPC__
+ hstbuflen = 1024;
+ tmphstbuf = stack_heap_alloc(hstbuflen);
+
+ while (gethostbyname_r (*ahost, &hostbuf, tmphstbuf,
+ hstbuflen, &hp, &herr) != 0 || hp == NULL)
+ {
+ if (herr != NETDB_INTERNAL || errno != ERANGE)
+ {
+ __set_h_errno (herr);
+ stack_heap_free(tmphstbuf);
+ herror(*ahost);
+ return -1;
+ }
+ else
+ {
+ /* Enlarge the buffer. */
+ hstbuflen *= 2;
+ stack_heap_free(tmphstbuf);
+ tmphstbuf = stack_heap_alloc(hstbuflen);
+ }
+ }
+ stack_heap_free(tmphstbuf);
+#else /* call the non-reentrant version */
+ if ((hp = gethostbyname(*ahost)) == NULL) {
+ return -1;
+ }
+#endif
+ pfd[0].events = POLLIN;
+ pfd[1].events = POLLIN;
+
+ *ahost = hp->h_name;
+ oldmask = sigblock(sigmask(SIGURG)); /* __sigblock */
+ for (timo = 1, lport = IPPORT_RESERVED - 1;;) {
+ s = rresvport(&lport);
+ if (s < 0) {
+ if (errno == EAGAIN)
+ (void)fprintf(stderr,
+ "rcmd: socket: All ports in use\n");
+ else
+ (void)fprintf(stderr, "rcmd: socket: %m\n");
+ sigsetmask(oldmask); /* sigsetmask */
+ return -1;
+ }
+ fcntl(s, F_SETOWN, pid);
+ sin.sin_family = hp->h_addrtype;
+ memmove(&sin.sin_addr, hp->h_addr_list[0],
+ MIN (sizeof (sin.sin_addr), hp->h_length));
+ sin.sin_port = rport;
+ if (connect(s, (struct sockaddr *)&sin, sizeof(sin)) >= 0) /* __connect */
+ break;
+ (void)close(s);
+ if (errno == EADDRINUSE) {
+ lport--;
+ continue;
+ }
+ if (errno == ECONNREFUSED && timo <= 16) {
+ (void)sleep(timo); /* __sleep */
+ timo *= 2;
+ continue;
+ }
+ if (hp->h_addr_list[1] != NULL) {
+ int oerrno = errno;
+
+ (void)fprintf(stderr, "connect to address %s: ",
+ inet_ntoa(sin.sin_addr));
+ __set_errno (oerrno);
+ perror(0);
+ hp->h_addr_list++;
+ memmove(&sin.sin_addr, hp->h_addr_list[0],
+ MIN (sizeof (sin.sin_addr), hp->h_length));
+ (void)fprintf(stderr, "Trying %s...\n",
+ inet_ntoa(sin.sin_addr));
+ continue;
+ }
+ (void)fprintf(stderr, "%s: %m\n", hp->h_name);
+ sigsetmask(oldmask); /* __sigsetmask */
+ return -1;
+ }
+ lport--;
+ if (fd2p == 0) {
+ write(s, "", 1);
+ lport = 0;
+ } else {
+ char num[8];
+ int s2 = rresvport(&lport), s3;
+ socklen_t len = sizeof(from);
+
+ if (s2 < 0)
+ goto bad;
+ listen(s2, 1);
+ (void)snprintf(num, sizeof(num), "%d", lport); /* __snprintf */
+ if (write(s, num, strlen(num)+1) != strlen(num)+1) {
+ (void)fprintf(stderr,
+ "rcmd: write (setting up stderr): %m\n");
+ (void)close(s2);
+ goto bad;
+ }
+ pfd[0].fd = s;
+ pfd[1].fd = s2;
+ __set_errno (0);
+ if (poll (pfd, 2, -1) < 1 || (pfd[1].revents & POLLIN) == 0){
+ if (errno != 0)
+ (void)fprintf(stderr, "rcmd: poll (setting up stderr): %m\n");
+ else
+ (void)fprintf(stderr, "poll: protocol failure in circuit setup\n");
+ (void)close(s2);
+ goto bad;
+ }
+ s3 = accept(s2, (struct sockaddr *)&from, &len);
+ (void)close(s2);
+ if (s3 < 0) {
+ (void)fprintf(stderr,
+ "rcmd: accept: %m\n");
+ lport = 0;
+ goto bad;
+ }
+ *fd2p = s3;
+ from.sin_port = ntohs((u_short)from.sin_port);
+ if (from.sin_family != AF_INET ||
+ from.sin_port >= IPPORT_RESERVED ||
+ from.sin_port < IPPORT_RESERVED / 2) {
+ (void)fprintf(stderr,
+ "socket: protocol failure in circuit setup\n");
+ goto bad2;
+ }
+ }
+ (void)write(s, locuser, strlen(locuser)+1);
+ (void)write(s, remuser, strlen(remuser)+1);
+ (void)write(s, cmd, strlen(cmd)+1);
+ if (read(s, &c, 1) != 1) {
+ (void)fprintf(stderr,
+ "rcmd: %s: %m\n", *ahost);
+ goto bad2;
+ }
+ if (c != 0) {
+ while (read(s, &c, 1) == 1) {
+ (void)write(STDERR_FILENO, &c, 1);
+ if (c == '\n')
+ break;
+ }
+ goto bad2;
+ }
+ sigsetmask(oldmask);
+ return s;
+bad2:
+ if (lport)
+ (void)close(*fd2p);
+bad:
+ (void)close(s);
+ sigsetmask(oldmask);
+ return -1;
+}
+
+int rresvport(int *alport)
+{
+ struct sockaddr_in sin;
+ int s;
+
+ sin.sin_family = AF_INET;
+ sin.sin_addr.s_addr = INADDR_ANY;
+ s = socket(AF_INET, SOCK_STREAM, 0);
+ if (s < 0)
+ return -1;
+ for (;;) {
+ sin.sin_port = htons((u_short)*alport);
+ if (bind(s, (struct sockaddr *)&sin, sizeof(sin)) >= 0)
+ return s;
+ if (errno != EADDRINUSE) {
+ (void)close(s);
+ return -1;
+ }
+ (*alport)--;
+ if (*alport == IPPORT_RESERVED/2) {
+ (void)close(s);
+ __set_errno (EAGAIN); /* close */
+ return -1;
+ }
+ }
+
+ return -1;
+}
+libc_hidden_def(rresvport)
+
+/* This needs to be exported ... while it is not a documented interface
+ * for rcp related apps, it's a required one that is used to control the
+ * rhost behavior. Legacy sucks.
+ */
+int __check_rhosts_file = 1;
+
+int ruserok(const char *rhost, int superuser, const char *ruser,
+ const char *luser)
+{
+ struct hostent *hp;
+ u_int32_t addr;
+ char **ap;
+#ifdef __UCLIBC_HAS_REENTRANT_RPC__
+ size_t buflen;
+ char *buffer;
+ int herr;
+ struct hostent hostbuf;
+#endif
+
+#ifdef __UCLIBC_HAS_REENTRANT_RPC__
+ buflen = 1024;
+ buffer = stack_heap_alloc(buflen);
+
+ while (gethostbyname_r (rhost, &hostbuf, buffer,
+ buflen, &hp, &herr) != 0 || hp == NULL)
+ {
+ if (herr != NETDB_INTERNAL || errno != ERANGE) {
+ stack_heap_free(buffer);
+ return -1;
+ } else
+ {
+ /* Enlarge the buffer. */
+ buflen *= 2;
+ stack_heap_free(buffer);
+ buffer = stack_heap_alloc(buflen);
+ }
+ }
+ stack_heap_free(buffer);
+#else
+ if ((hp = gethostbyname(rhost)) == NULL) {
+ return -1;
+ }
+#endif
+ for (ap = hp->h_addr_list; *ap; ++ap) {
+ memmove(&addr, *ap, sizeof(addr));
+ if (iruserok2(addr, superuser, ruser, luser, rhost) == 0)
+ return 0;
+ }
+ return -1;
+}
+
+
+/* Extremely paranoid file open function. */
+static FILE *
+iruserfopen (const char *file, uid_t okuser)
+{
+ struct stat st;
+ char *cp = NULL;
+ FILE *res = NULL;
+
+ /* If not a regular file, if owned by someone other than user or
+ root, if writeable by anyone but the owner, or if hardlinked
+ anywhere, quit. */
+ if (lstat (file, &st))
+ cp = "lstat failed";
+ else if (!S_ISREG (st.st_mode))
+ cp = "not regular file";
+ else
+ {
+ res = fopen (file, "r");
+ if (!res)
+ cp = "cannot open";
+ else if (fstat (fileno (res), &st) < 0)
+ cp = "fstat failed";
+ else if (st.st_uid && st.st_uid != okuser)
+ cp = "bad owner";
+ else if (st.st_mode & (S_IWGRP|S_IWOTH))
+ cp = "writeable by other than owner";
+ else if (st.st_nlink > 1)
+ cp = "hard linked somewhere";
+ }
+
+ /* If there were any problems, quit. */
+ if (cp != NULL)
+ {
+ if (res)
+ fclose (res);
+ return NULL;
+ }
+
+ return res;
+}
+
+
+/*
+ * New .rhosts strategy: We are passed an ip address. We spin through
+ * hosts.equiv and .rhosts looking for a match. When the .rhosts only
+ * has ip addresses, we don't have to trust a nameserver. When it
+ * contains hostnames, we spin through the list of addresses the nameserver
+ * gives us and look for a match.
+ *
+ * Returns 0 if ok, -1 if not ok.
+ */
+static int
+iruserok2 (u_int32_t raddr, int superuser, const char *ruser, const char *luser,
+ const char *rhost)
+{
+ FILE *hostf = NULL;
+ int isbad = -1;
+
+ if (!superuser)
+ hostf = iruserfopen (_PATH_HEQUIV, 0);
+
+ if (hostf) {
+ isbad = __ivaliduser2 (hostf, raddr, luser, ruser, rhost);
+ fclose (hostf);
+
+ if (!isbad)
+ return 0;
+ }
+
+ if (__check_rhosts_file || superuser) {
+ char *pbuf;
+ struct passwd *pwd;
+ size_t dirlen;
+ uid_t uid;
+
+#ifdef __UCLIBC_HAS_REENTRANT_RPC__
+ size_t buflen = sysconf (_SC_GETPW_R_SIZE_MAX);
+ struct passwd pwdbuf;
+ char *buffer = stack_heap_alloc(buflen);
+
+ if (getpwnam_r (luser, &pwdbuf, buffer,
+ buflen, &pwd) != 0 || pwd == NULL)
+ {
+ stack_heap_free(buffer);
+ return -1;
+ }
+ stack_heap_free(buffer);
+#else
+ if ((pwd = getpwnam(luser)) == NULL)
+ return -1;
+#endif
+
+ dirlen = strlen (pwd->pw_dir);
+ pbuf = malloc (dirlen + sizeof "/.rhosts");
+ strcpy (pbuf, pwd->pw_dir);
+ strcat (pbuf, "/.rhosts");
+
+ /* Change effective uid while reading .rhosts. If root and
+ reading an NFS mounted file system, can't read files that
+ are protected read/write owner only. */
+ uid = geteuid ();
+ seteuid (pwd->pw_uid);
+ hostf = iruserfopen (pbuf, pwd->pw_uid);
+ free(pbuf);
+
+ if (hostf != NULL) {
+ isbad = __ivaliduser2 (hostf, raddr, luser, ruser, rhost);
+ fclose (hostf);
+ }
+
+ seteuid (uid);
+ return isbad;
+ }
+ return -1;
+}
+
+/* This is the exported version. */
+int iruserok (u_int32_t raddr, int superuser, const char * ruser, const char * luser);
+int iruserok (u_int32_t raddr, int superuser, const char * ruser, const char * luser)
+{
+ return iruserok2 (raddr, superuser, ruser, luser, "-");
+}
+
+
+/*
+ * XXX
+ * Don't make static, used by lpd(8).
+ *
+ * This function is not used anymore. It is only present because lpd(8)
+ * calls it (!?!). We simply call __invaliduser2() with an illegal rhost
+ * argument. This means that netgroups won't work in .rhost/hosts.equiv
+ * files. If you want lpd to work with netgroups, fix lpd to use ruserok()
+ * or PAM.
+ * Returns 0 if ok, -1 if not ok.
+ */
+int
+__ivaliduser(FILE *hostf, u_int32_t raddr, const char *luser, const char *ruser);
+int
+__ivaliduser(FILE *hostf, u_int32_t raddr, const char *luser, const char *ruser)
+{
+ return __ivaliduser2(hostf, raddr, luser, ruser, "-");
+}
+
+
+/* Returns 1 on positive match, 0 on no match, -1 on negative match. */
+static int
+__icheckhost (u_int32_t raddr, char *lhost, const char *rhost)
+{
+ struct hostent *hp;
+ u_int32_t laddr;
+ int negate=1; /* Multiply return with this to get -1 instead of 1 */
+ char **pp;
+
+#ifdef __UCLIBC_HAS_REENTRANT_RPC__
+ int save_errno;
+ size_t buflen;
+ char *buffer;
+ struct hostent hostbuf;
+ int herr;
+#endif
+
+#ifdef HAVE_NETGROUP
+ /* Check nis netgroup. */
+ if (strncmp ("+@", lhost, 2) == 0)
+ return innetgr (&lhost[2], rhost, NULL, NULL);
+
+ if (strncmp ("-@", lhost, 2) == 0)
+ return -innetgr (&lhost[2], rhost, NULL, NULL);
+#endif /* HAVE_NETGROUP */
+
+ /* -host */
+ if (strncmp ("-", lhost,1) == 0) {
+ negate = -1;
+ lhost++;
+ } else if (strcmp ("+",lhost) == 0) {
+ return 1; /* asking for trouble, but ok.. */
+ }
+
+ /* Try for raw ip address first. */
+ if (isdigit (*lhost) && (laddr = inet_addr (lhost)) != INADDR_NONE)
+ return negate * (! (raddr ^ laddr));
+
+ /* Better be a hostname. */
+#ifdef __UCLIBC_HAS_REENTRANT_RPC__
+ buflen = 1024;
+ buffer = malloc(buflen);
+ save_errno = errno;
+
+ while (gethostbyname_r (lhost, &hostbuf, buffer, buflen, &hp, &herr)
+ != 0) {
+ free(buffer);
+ return (0);
+ }
+ free(buffer);
+ __set_errno (save_errno);
+#else
+ hp = gethostbyname(lhost);
+#endif /* __UCLIBC_HAS_REENTRANT_RPC__ */
+
+ if (hp == NULL)
+ return 0;
+
+ /* Spin through ip addresses. */
+ for (pp = hp->h_addr_list; *pp; ++pp)
+ if (!memcmp (&raddr, *pp, sizeof (u_int32_t)))
+ return negate;
+
+ /* No match. */
+ return (0);
+}
+
+/* Returns 1 on positive match, 0 on no match, -1 on negative match. */
+static int
+__icheckuser (const char *luser, const char *ruser)
+{
+
+ /*
+ luser is user entry from .rhosts/hosts.equiv file
+ ruser is user id on remote host
+ */
+
+#ifdef HAVE_NETGROUP
+ /* [-+]@netgroup */
+ if (strncmp ("+@", luser, 2) == 0)
+ return innetgr (&luser[2], NULL, ruser, NULL);
+
+ if (strncmp ("-@", luser,2) == 0)
+ return -innetgr (&luser[2], NULL, ruser, NULL);
+#endif /* HAVE_NETGROUP */
+
+ /* -user */
+ if (strncmp ("-", luser, 1) == 0)
+ return -(strcmp (&luser[1], ruser) == 0);
+
+ /* + */
+ if (strcmp ("+", luser) == 0)
+ return 1;
+
+ /* simple string match */
+ return strcmp (ruser, luser) == 0;
+}
+
+/*
+ * Returns 1 for blank lines (or only comment lines) and 0 otherwise
+ */
+static int
+__isempty(char *p)
+{
+ while (*p && isspace (*p)) {
+ ++p;
+ }
+
+ return (*p == '\0' || *p == '#') ? 1 : 0 ;
+}
+
+/*
+ * Returns 0 if positive match, -1 if _not_ ok.
+ */
+static int
+__ivaliduser2(FILE *hostf, u_int32_t raddr, const char *luser,
+ const char *ruser, const char *rhost)
+{
+ register const char *user;
+ register char *p;
+ int hcheck, ucheck;
+ char *buf = NULL;
+ size_t bufsize = 0;
+ int retval = -1;
+
+ while (getline (&buf, &bufsize, hostf) > 0) {
+ buf[bufsize - 1] = '\0'; /* Make sure it's terminated. */
+ p = buf;
+
+ /* Skip empty or comment lines */
+ if (__isempty (p)) {
+ continue;
+ }
+
+ /* Skip lines that are too long. */
+ if (strchr (p, '\n') == NULL) {
+ int ch = getc_unlocked (hostf);
+
+ while (ch != '\n' && ch != EOF)
+ ch = getc_unlocked (hostf);
+ continue;
+ }
+
+ for (;*p && !isspace(*p); ++p) {
+ *p = tolower (*p);
+ }
+
+ /* Next we want to find the permitted name for the remote user. */
+ if (*p == ' ' || *p == '\t') {
+ /* <nul> terminate hostname and skip spaces */
+ for (*p++='\0'; *p && isspace (*p); ++p);
+
+ user = p; /* this is the user's name */
+ while (*p && !isspace (*p))
+ ++p; /* find end of user's name */
+ } else
+ user = p;
+
+ *p = '\0'; /* <nul> terminate username (+host?) */
+
+ /* buf -> host(?) ; user -> username(?) */
+
+ /* First check host part */
+ hcheck = __icheckhost (raddr, buf, rhost);
+
+ if (hcheck < 0)
+ break;
+
+ if (hcheck) {
+ /* Then check user part */
+ if (! (*user))
+ user = luser;
+
+ ucheck = __icheckuser (user, ruser);
+
+ /* Positive 'host user' match? */
+ if (ucheck > 0) {
+ retval = 0;
+ break;
+ }
+
+ /* Negative 'host -user' match? */
+ if (ucheck < 0)
+ break;
+
+ /* Neither, go on looking for match */
+ }
+ }
+
+ free (buf);
+
+ return retval;
+}