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Update.

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2000-01-17  Ulrich Drepper  <drepper@cygnus.com>

	* inet/rcmd.c: Implement rcmd_af, rresvport_af, ruserok_af, and
	iruserok_af.
	* inet/rexec.c: Implement rexec_af.
	Patch by Hideaki YOSHIFUJI <yoshfuji@ecei.tohoku.ac.jp>.

	* resolv/netdb.h: Add declarations of rcmd_af, rexec_af, ruserok_af,
	and rresvport_af.
This commit is contained in:
Ulrich Drepper
2000-01-18 06:46:32 +00:00
parent 0482576eec
commit 2d29aba941
4 changed files with 381 additions and 186 deletions
Download Patch File Download Diff File Expand all files Collapse all files

88
inet/rexec.c
View File

@@ -44,62 +44,62 @@ static char sccsid[] = "@(#)rexec.c 8.1 (Berkeley) 6/4/93";
#include <unistd.h>
int rexecoptions;
char ahostbuf[NI_MAXHOST];
int
rexec(ahost, rport, name, pass, cmd, fd2p)
rexec_af(ahost, rport, name, pass, cmd, fd2p, af)
char **ahost;
int rport;
const char *name, *pass, *cmd;
int *fd2p;
sa_family_t af;
{
struct sockaddr_in sin, sin2, from;
struct hostent hostbuf, *hp;
struct sockaddr_storage sa2, from;
struct addrinfo hints, *res0;
const char *orig_name = name;
const char *orig_pass = pass;
size_t hstbuflen;
char *hsttmpbuf;
u_short port;
int s, timo = 1, s3;
char c;
int herr;
int gai, ok;
char servbuff[NI_MAXSERV];
hstbuflen = 1024;
hsttmpbuf = __alloca (hstbuflen);
while (__gethostbyname_r (*ahost, &hostbuf, hsttmpbuf, hstbuflen,
&hp, &herr) != 0
|| hp == NULL)
if (herr != NETDB_INTERNAL || errno != ERANGE)
{
__set_h_errno (herr);
herror(*ahost);
return -1;
}
else
{
/* Enlarge the buffer. */
hstbuflen *= 2;
hsttmpbuf = __alloca (hstbuflen);
}
snprintf(servbuff, sizeof(servbuff), "%d", rport);
servbuff[sizeof(servbuff) - 1] = '\0';
*ahost = hp->h_name;
ruserpass(hp->h_name, &name, &pass);
memset(&hints, 0, sizeof(hints));
hints.ai_family = af;
hints.ai_socktype = SOCK_STREAM;
hints.ai_flags = AI_CANONNAME;
if (gai = getaddrinfo(*ahost, servbuff, &hints, &res0)){
/* XXX: set errno? */
return -1;
}
if (res0->ai_canonname){
strncpy(ahostbuf, res0->ai_canonname, sizeof(ahostbuf));
ahostbuf[sizeof(ahostbuf)-1] = '\0';
*ahost = ahostbuf;
}
else{
*ahost = NULL;
}
ruserpass(res0->ai_canonname, &name, &pass);
retry:
s = __socket(AF_INET, SOCK_STREAM, 0);
s = __socket(res0->ai_family, res0->ai_socktype, 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 (__connect(s, (struct sockaddr *)&sin, sizeof(sin)) < 0) {
if (__connect(s, res0->ai_addr, res0->ai_addrlen) < 0) {
if (errno == ECONNREFUSED && timo <= 16) {
(void) __close(s);
__sleep(timo);
timo *= 2;
goto retry;
}
perror(hp->h_name);
perror(res0->ai_canonname);
return (-1);
}
if (fd2p == 0) {
@@ -107,22 +107,26 @@ retry:
port = 0;
} else {
char num[32];
int s2, sin2len;
int s2, sa2len;
s2 = __socket(AF_INET, SOCK_STREAM, 0);
s2 = __socket(res0->ai_family, res0->ai_socktype, 0);
if (s2 < 0) {
(void) __close(s);
return (-1);
}
listen(s2, 1);
sin2len = sizeof (sin2);
if (getsockname(s2, (struct sockaddr *)&sin2, &sin2len) < 0 ||
sin2len != sizeof (sin2)) {
sa2len = sizeof (sa2);
if (getsockname(s2, (struct sockaddr *)&sa2, &sa2len) < 0 ||
sa2len != __libc_sa_len(sa2.__ss_family)) {
perror("getsockname");
(void) __close(s2);
goto bad;
}
port = ntohs((u_short)sin2.sin_port);
port = 0;
if (!getnameinfo((struct sockaddr *)&sa2, sa2len,
NULL, 0, servbuff, sizeof(servbuff),
NI_NUMERICSERV))
port = atoi(servbuff);
(void) sprintf(num, "%u", port);
(void) __write(s, num, strlen(num)+1);
{ int len = sizeof (from);
@@ -160,10 +164,22 @@ retry:
}
goto bad;
}
freeaddrinfo(res0);
return (s);
bad:
if (port)
(void) __close(*fd2p);
(void) __close(s);
freeaddrinfo(res0);
return (-1);
}
int
rexec(ahost, rport, name, pass, cmd, fd2p)
char **ahost;
int rport;
const char *name, *pass, *cmd;
int *fd2p;
{
return rexec_af(ahost, rport, name, pass, cmd, fd2p, AF_INET);
}