diff options
Diffstat (limited to 'winsup/cygwin/libc/rexec.cc')
| -rw-r--r-- | winsup/cygwin/libc/rexec.cc | 411 |
1 files changed, 0 insertions, 411 deletions
diff --git a/winsup/cygwin/libc/rexec.cc b/winsup/cygwin/libc/rexec.cc deleted file mode 100644 index a09828675..000000000 --- a/winsup/cygwin/libc/rexec.cc +++ /dev/null @@ -1,411 +0,0 @@ -/* - * Copyright (c) 1980, 1993 - * 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. - * - * $FreeBSD$ - */ - -/* CV 2006-07-04: Tweaked for inclusion into Cygwin. */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)rexec.c 8.1 (Berkeley) 6/4/93"; -#endif /* LIBC_SCCS and not lint */ - -#ifdef __CYGWIN__ -#include "winsup.h" -#include "sigproc.h" -#include "cygtls.h" -#include <wininet.h> -#endif - -#include <sys/types.h> -#include <sys/uio.h> -#include <sys/socket.h> -#include <sys/param.h> -#include <sys/stat.h> - -#include <netinet/in.h> - -#include <stdio.h> -#include <unistd.h> -#include <string.h> -#include <netdb.h> -#include <errno.h> -#include <ctype.h> -#include <err.h> -#include <stdlib.h> -#include <unistd.h> - -extern "C" { - int cygwin_accept (int, struct sockaddr *, socklen_t *); - int cygwin_connect (int, const struct sockaddr *, socklen_t); - int cygwin_getsockname (int, struct sockaddr *, socklen_t *); - void cygwin_herror (const char *); - int cygwin_listen (int, int); - int cygwin_socket (int, int, int); -} - -/* - * Options and other state info. - */ -struct macel { - char mac_name[9]; /* macro name */ - char *mac_start; /* start of macro in macbuf */ - char *mac_end; /* end of macro in macbuf */ -}; - -int macnum; /* number of defined macros */ -struct macel macros[16]; -char macbuf[4096]; - -static FILE *cfile; - -#define DEFAULT 1 -#define LOGIN 2 -#define PASSWD 3 -#define ACCOUNT 4 -#define MACDEF 5 -#define ID 10 -#define MACH 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", MACH }, - { "macdef", MACDEF }, - { NULL, 0 } -}; - -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); -} - -static int -ruserpass(const char *host, char **aname, char **apass, char **aacct) -{ - const char *hdir; - char buf[BUFSIZ], *tmp; - char myname[INTERNET_MAX_HOST_NAME_LENGTH + 1]; - const char *mydomain; - int t, i, c, usedefault = 0; - struct __stat64 stb; - - hdir = getenv("HOME"); - if (hdir == NULL) - hdir = "."; - if (strlen(hdir) + 8 > sizeof(buf)) - return (0); - (void) sprintf(buf, "%s/.netrc", hdir); - cfile = fopen(buf, "r"); - if (cfile == NULL) { - if (errno != ENOENT) - warn("%s", buf); - return (0); - } - if (cygwin_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 MACH: - 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 ((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 != MACH && t != DEFAULT) switch(t) { - - case LOGIN: - if (token()) { - if (*aname == 0) { - *aname = (char *) malloc((unsigned) strlen(tokval) + 1); - (void) strcpy(*aname, tokval); - } else { - if (strcmp(*aname, tokval)) - goto next; - } - } - break; - case PASSWD: - if ((*aname == 0 || strcmp(*aname, "anonymous")) && - fstat64(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 = (char *) malloc((unsigned) strlen(tokval) + 1); - (void) strcpy(*apass, tokval); - } - break; - case ACCOUNT: - if (fstat64(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 && *aacct == 0) { - *aacct = (char *) malloc((unsigned) strlen(tokval) + 1); - (void) strcpy(*aacct, tokval); - } - break; - case MACDEF: - 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; - } - break; - default: - warnx("Unknown .netrc keyword %s", tokval); - break; - } - goto done; - } -done: - (void) fclose(cfile); - return (0); -bad: - (void) fclose(cfile); - return (-1); -} - -extern "C" int -cygwin_rexec (char **ahost, unsigned short rport, char *name, char *pass, - char *cmd, int *fd2p) -{ - struct sockaddr_in sin, sin2, from; - struct hostent *hp; - u_short port = 0; - int s, timo = 1, s3; - char c; - char ahostbuf[INTERNET_MAX_HOST_NAME_LENGTH + 1]; - - myfault efault; - if (efault.faulted (EFAULT)) - return -1; - - hp = cygwin_gethostbyname(*ahost); - if (hp == 0) { - cygwin_herror(*ahost); - return (-1); - } - *ahost = strcpy (ahostbuf, hp->h_name); - ruserpass(hp->h_name, &name, &pass, NULL); - if (!name) - name = getlogin (); - if (!pass) - pass = almost_null; -retry: - s = cygwin_socket(AF_INET, SOCK_STREAM, 0); - if (s < 0) { - perror("rexec: socket"); - return (-1); - } - sin.sin_family = hp->h_addrtype; - sin.sin_port = rport; - bcopy(hp->h_addr, (caddr_t)&sin.sin_addr, hp->h_length); - if (cygwin_connect(s, (struct sockaddr *)&sin, sizeof(sin)) < 0) { - if (errno == ECONNREFUSED && timo <= 16) { - (void) close(s); - sleep(timo); - timo *= 2; - goto retry; - } - perror(hp->h_name); - return (-1); - } - if (fd2p == 0) { - (void) write(s, "", 1); - } else { - char num[8]; - int s2, sin2len; - - s2 = cygwin_socket(AF_INET, SOCK_STREAM, 0); - if (s2 < 0) { - (void) close(s); - return (-1); - } - cygwin_listen(s2, 1); - sin2len = sizeof (sin2); - if (cygwin_getsockname(s2, (struct sockaddr *)&sin2, &sin2len) < 0 || - sin2len != sizeof (sin2)) { - perror("getsockname"); - (void) close(s2); - goto bad; - } - port = ntohs((u_short)sin2.sin_port); - (void) sprintf(num, "%u", port); - (void) write(s, num, strlen(num)+1); - { int len = sizeof (from); - s3 = cygwin_accept(s2, (struct sockaddr *)&from, &len); - close(s2); - if (s3 < 0) { - perror("accept"); - port = 0; - goto bad; - } - } - *fd2p = s3; - } - (void) write(s, name, strlen(name) + 1); - /* should public key encypt the password here */ - (void) write(s, pass, strlen(pass) + 1); - (void) write(s, cmd, strlen(cmd) + 1); - if (read(s, &c, 1) != 1) { - perror(*ahost); - goto bad; - } - if (c != 0) { - while (read(s, &c, 1) == 1) { - (void) write(2, &c, 1); - if (c == '\n') - break; - } - goto bad; - } - return (s); -bad: - if (port) - (void) close(*fd2p); - (void) close(s); - return (-1); -} |