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30 #if defined(LIBC_SCCS) && !defined(lint)
31 static char sccsid[] = "@(#)rexec.c 8.1 (Berkeley) 6/4/93";
32 #endif /* LIBC_SCCS and not lint */
34 #include <sys/types.h>
35 #include <sys/socket.h>
37 #include <netinet/in.h>
49 libc_freeres_ptr (static char *ahostbuf);
52 rexec_af(ahost, rport, name, pass, cmd, fd2p, af)
55 const char *name, *pass, *cmd;
59 struct sockaddr_storage from;
60 struct addrinfo hints, *res0;
61 const char *orig_name = name;
62 const char *orig_pass = pass;
67 char servbuff[NI_MAXSERV];
69 __snprintf(servbuff, sizeof(servbuff), "%d", ntohs(rport));
70 servbuff[sizeof(servbuff) - 1] = '\0';
72 memset(&hints, '\0', sizeof(hints));
74 hints.ai_socktype = SOCK_STREAM;
75 hints.ai_flags = AI_CANONNAME;
76 gai = getaddrinfo(*ahost, servbuff, &hints, &res0);
82 if (res0->ai_canonname){
84 ahostbuf = strdup (res0->ai_canonname);
85 if (ahostbuf == NULL) {
86 perror ("rexec: strdup");
95 ruserpass(res0->ai_canonname, &name, &pass);
97 s = __socket(res0->ai_family, res0->ai_socktype, 0);
99 perror("rexec: socket");
102 if (__connect(s, res0->ai_addr, res0->ai_addrlen) < 0) {
103 if (errno == ECONNREFUSED && timo <= 16) {
109 perror(res0->ai_canonname);
113 (void) __write(s, "", 1);
120 struct sockaddr_storage ss;
125 s2 = __socket(res0->ai_family, res0->ai_socktype, 0);
131 sa2len = sizeof (sa2);
132 if (__getsockname(s2, &sa2.sa, &sa2len) < 0) {
133 perror("getsockname");
136 } else if (sa2len != SA_LEN(&sa2.sa)) {
142 if (!getnameinfo(&sa2.sa, sa2len,
143 NULL, 0, servbuff, sizeof(servbuff),
145 port = atoi(servbuff);
146 (void) sprintf(num, "%u", port);
147 (void) __write(s, num, strlen(num)+1);
148 { socklen_t len = sizeof (from);
149 s3 = TEMP_FAILURE_RETRY (accept(s2, (struct sockaddr *)&from,
161 struct iovec iov[3] =
163 [0] = { .iov_base = (void *) name, .iov_len = strlen (name) + 1 },
164 /* should public key encypt the password here */
165 [1] = { .iov_base = (void *) pass, .iov_len = strlen (pass) + 1 },
166 [2] = { .iov_base = (void *) cmd, .iov_len = strlen (cmd) + 1 }
168 (void) TEMP_FAILURE_RETRY (__writev (s, iov, 3));
170 /* We don't need the memory allocated for the name and the password
171 in ruserpass anymore. */
172 if (name != orig_name)
173 free ((char *) name);
174 if (pass != orig_pass)
175 free ((char *) pass);
177 if (__read(s, &c, 1) != 1) {
182 while (__read(s, &c, 1) == 1) {
183 (void) __write(2, &c, 1);
193 (void) __close(*fd2p);
198 libc_hidden_def (rexec_af)
201 rexec(ahost, rport, name, pass, cmd, fd2p)
204 const char *name, *pass, *cmd;
207 return rexec_af(ahost, rport, name, pass, cmd, fd2p, AF_INET);