version 1.6, 2000/11/28 04:24:12 |
version 1.17, 2003/06/02 10:25:57 |
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/* -*- mode: C; coding: euc-japan -*- */ |
/* -*- mode: C; coding: euc-japan -*- */ |
/* $OpenXM: OpenXM/src/ox_toolkit/oxf.c,v 1.5 2000/11/24 05:49:27 ohara Exp $ */ |
/* $OpenXM: OpenXM/src/ox_toolkit/oxf.c,v 1.16 2003/05/29 15:50:49 ohara Exp $ */ |
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/* |
/* |
This module includes functions for sending/receiveng CMO's. |
This module includes functions for sending/receiveng CMO's. |
Some commnets is written in Japanese by the EUC-JP coded |
Some commnets are written in Japanese by the EUC-JP coded |
character set. |
character set. |
*/ |
*/ |
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#include <sys/param.h> |
#include <sys/param.h> |
#include <time.h> |
#include <time.h> |
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#if defined(__sun__) |
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#include <netdb.h> |
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#include <sys/types.h> |
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#include <netinet/in.h> |
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#endif |
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#include "mysocket.h" |
#include "mysocket.h" |
#include "ox_toolkit.h" |
#include "ox_toolkit.h" |
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Line 26 static int send_int32_nbo(OXFILE *oxfp, int int32); |
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Line 32 static int send_int32_nbo(OXFILE *oxfp, int int32); |
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static int receive_int32_lbo(OXFILE *oxfp); |
static int receive_int32_lbo(OXFILE *oxfp); |
static int receive_int32_nbo(OXFILE *oxfp); |
static int receive_int32_nbo(OXFILE *oxfp); |
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/* enable write buffering */ |
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int oxf_setbuffer(OXFILE *oxfp, char *buf, int size) |
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{ |
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if (buf == NULL && size > 0) { |
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buf = MALLOC(size); |
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} |
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if (oxfp->wbuf != NULL) { |
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oxf_flush(oxfp); |
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} |
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oxfp->wbuf = buf; |
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oxfp->wbuf_size = size; |
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oxfp->wbuf_count = 0; |
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} |
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int oxf_read(void *buffer, size_t size, size_t num, OXFILE *oxfp) |
int oxf_read(void *buffer, size_t size, size_t num, OXFILE *oxfp) |
{ |
{ |
int n = read(oxfp->fd, buffer, size*num); |
int n = read(oxfp->fd, buffer, size*num); |
Line 37 int oxf_read(void *buffer, size_t size, size_t num, OX |
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Line 57 int oxf_read(void *buffer, size_t size, size_t num, OX |
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int oxf_write(void *buffer, size_t size, size_t num, OXFILE *oxfp) |
int oxf_write(void *buffer, size_t size, size_t num, OXFILE *oxfp) |
{ |
{ |
return write(oxfp->fd, buffer, size*num); |
size_t sz = size*num; |
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if (oxfp->wbuf == NULL) { /* no buffering */ |
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return write(oxfp->fd, buffer, sz); |
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} |
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if ((oxfp->wbuf_count + sz) >= oxfp->wbuf_size) { |
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oxf_flush(oxfp); |
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return write(oxfp->fd, buffer, sz); |
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} |
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memcpy(oxfp->wbuf + oxfp->wbuf_count, buffer, sz); |
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oxfp->wbuf_count += sz; |
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return sz; |
} |
} |
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/* sending an object of int32 type with Network Byte Order. |
/* sending an object of int32 type with Network Byte Order. |
Line 73 static int receive_int32_lbo(OXFILE *oxfp) |
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Line 103 static int receive_int32_lbo(OXFILE *oxfp) |
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return tag; |
return tag; |
} |
} |
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/* socket システムコールなどで socket を開いたのち、 |
/* (1) getting the fd by socket(2). |
fdopen(sd, "a+") でバッファリングする(予定)。("w+" ではない) |
(2) preparing a buffer by fdopen(fd, "a+"). (not "w+") |
バッファリングの後、バイトオーダを決定し、 |
(3) determing the byte order of the OX connection. |
oxf_setopt() で関数ポインタを設定し直す。*/ |
(4) setting function pointers by oxf_setopt(). |
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*/ |
OXFILE *oxf_open(int fd) |
OXFILE *oxf_open(int fd) |
{ |
{ |
OXFILE *oxfp = (OXFILE *)malloc(sizeof(OXFILE)); |
OXFILE *oxfp = (OXFILE *)MALLOC(sizeof(OXFILE)); |
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oxfp = (OXFILE *)MALLOC(sizeof(OXFILE)); |
oxfp->fd = fd; |
oxfp->fd = fd; |
oxfp->send_int32 = send_int32_nbo; |
oxfp->send_int32 = send_int32_nbo; |
oxfp->receive_int32 = receive_int32_nbo; |
oxfp->receive_int32 = receive_int32_nbo; |
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oxfp->serial_number = 0; |
oxfp->control = NULL; |
oxfp->control = NULL; |
oxfp->error = 0; |
oxfp->error = 0; |
oxfp->mathcap = NULL; |
oxfp->mathcap = NULL; |
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oxfp->wbuf = NULL; |
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oxfp->wbuf_size = 0; |
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oxfp->wbuf_count = 0; |
return oxfp; |
return oxfp; |
/* oxfp->fp = fdopen(fd, "a+"); */ |
/* oxfp->fp = fdopen(fd, "a+"); */ |
/* return (oxfp->fp != NULL)? oxfp: NULL; */ |
/* return (oxfp->fp != NULL)? oxfp: NULL; */ |
} |
} |
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int oxf_fileno(OXFILE *oxfp) |
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{ |
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return oxfp->fd; |
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} |
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OXFILE *oxf_control(OXFILE *oxfp) |
OXFILE *oxf_control(OXFILE *oxfp) |
{ |
{ |
return oxfp->control; |
return oxfp->control; |
Line 114 void oxf_determine_byteorder_client(OXFILE *oxfp) |
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Line 154 void oxf_determine_byteorder_client(OXFILE *oxfp) |
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oxf_setopt(oxfp, mode); |
oxf_setopt(oxfp, mode); |
} |
} |
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/* Server 側ではこちらを用いる */ |
/* If the program is an OX server, then you must use this function. */ |
/* いまの実装は dup されていることが前提になっている */ |
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void oxf_determine_byteorder_server(OXFILE *oxfp) |
void oxf_determine_byteorder_server(OXFILE *oxfp) |
{ |
{ |
int offer = OX_BYTE_LITTLE_ENDIAN; |
int offer = OX_BYTE_LITTLE_ENDIAN; |
Line 130 void oxf_determine_byteorder_server(OXFILE *oxfp) |
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Line 169 void oxf_determine_byteorder_server(OXFILE *oxfp) |
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void oxf_flush(OXFILE *oxfp) |
void oxf_flush(OXFILE *oxfp) |
{ |
{ |
/* fflush(oxfp->fp); */ |
if (oxfp->wbuf != NULL) { |
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write(oxfp->fd, oxfp->wbuf, oxfp->wbuf_count); |
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oxfp->wbuf_count = 0; |
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} |
} |
} |
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void oxf_close(OXFILE *oxfp) |
void oxf_close(OXFILE *oxfp) |
{ |
{ |
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oxf_flush(oxfp); |
close(oxfp->fd); |
close(oxfp->fd); |
/* fclose(oxfp->fp); */ |
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} |
} |
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#define OXF_SETOPT_NBO 0 |
#define OXF_SETOPT_NBO 0 |
Line 165 int oxf_listen(short *portp) |
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Line 207 int oxf_listen(short *portp) |
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OXFILE *oxf_connect_active(char *hostname, short port) |
OXFILE *oxf_connect_active(char *hostname, short port) |
{ |
{ |
int fd = mysocketOpen(hostname, port); |
int fd = mysocketOpen(hostname, port); |
return oxf_open(fd); |
return (fd < 0)? NULL: oxf_open(fd); |
} |
} |
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OXFILE *oxf_connect_passive(int listened) |
OXFILE *oxf_connect_passive(int listened) |
{ |
{ |
int fd = mysocketAccept(listened); |
int fd = mysocketAccept(listened); |
return oxf_open(fd); |
return (fd < 0)? NULL: oxf_open(fd); |
} |
} |
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#define LENGTH_OF_ONETIME_PASSWORD 64 |
#define LENGTH_OF_ONETIME_PASSWORD 64 |
Line 196 char *generate_otp() |
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Line 238 char *generate_otp() |
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int oxf_confirm_client(OXFILE *oxfp, char *passwd) |
int oxf_confirm_client(OXFILE *oxfp, char *passwd) |
{ |
{ |
int len = strlen(passwd)+1; |
int len = strlen(passwd)+1; |
char *buf = alloca(len); |
char *buf = ALLOCA(len); |
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oxf_read(buf, 1, len, oxfp); |
oxf_read(buf, 1, len, oxfp); |
return !strcmp(passwd, buf); |
return !strcmp(passwd, buf); |
Line 232 char *which(char *exe, const char *env) |
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Line 274 char *which(char *exe, const char *env) |
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char *tok; |
char *tok; |
char *path; |
char *path; |
char delim[] = ":"; |
char delim[] = ":"; |
char *e = alloca(strlen(env)+1); |
char *e = ALLOCA(strlen(env)+1); |
strcpy(e, env); |
strcpy(e, env); |
tok = strtok(e, delim); |
tok = strtok(e, delim); |
while (tok != NULL) { |
while (tok != NULL) { |
path = malloc(strlen(tok)+strlen(exe)+2); |
path = MALLOC(strlen(tok)+strlen(exe)+2); |
sprintf(path, "%s/%s", tok, exe); |
sprintf(path, "%s/%s", tok, exe); |
if (access(path, X_OK&R_OK) == 0) { |
if (access(path, X_OK&R_OK) == 0) { |
return path; |
return path; |
} |
} |
free(path); |
FREE(path); |
tok = strtok(NULL, delim); |
tok = strtok(NULL, delim); |
} |
} |
return NULL; |
return NULL; |
Line 258 int oxc_start(char *remote_host, short port, char *pas |
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Line 300 int oxc_start(char *remote_host, short port, char *pas |
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if (gethostname(localhost, MAXHOSTNAMELEN)==0) { |
if (gethostname(localhost, MAXHOSTNAMELEN)==0) { |
if ((pid = fork()) == 0) { |
if ((pid = fork()) == 0) { |
sprintf(ports, "%d", port); |
sprintf(ports, "%d", port); |
#ifdef DEBUG |
ox_printf("oxf.c:: oxc_start() does %s(ssh) -f %s -h %s -p %s -c %s\n", remote_host, cmd, localhost, ports, passwd); |
fprintf(stderr, "oxf.c:: oxc_start() does %s(ssh) -f %s -h %s -p %s -c %s\n", remote_host, cmd, localhost, ports, passwd); |
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#endif |
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execlp("ssh", remote_host, "-f", cmd, |
execlp("ssh", remote_host, "-f", cmd, |
"-h", localhost, "-p", ports,"-c", passwd, NULL); |
"-h", localhost, "-p", ports,"-c", passwd, NULL); |
} |
} |
Line 268 int oxc_start(char *remote_host, short port, char *pas |
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Line 308 int oxc_start(char *remote_host, short port, char *pas |
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return pid; |
return pid; |
} |
} |
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/* Remarks: ssh determines remote host by his name, i.e. by arg[0]. */ |
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int oxc_start_with_pipe(char *remote_host, int port, char *passwd) |
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{ |
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char localhost[MAXHOSTNAMELEN]; |
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char ports[128]; |
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int pid = 0; |
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char *cmd = "oxc"; |
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int pipefd[2]; |
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if (gethostname(localhost, MAXHOSTNAMELEN)==0) { |
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if (pipe(pipefd) < 0) { |
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return -1; |
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} |
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if ((pid = fork()) == 0) { |
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dup2(pipefd[1], 0); |
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close(pipefd[0]); |
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close(pipefd[1]); |
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execlp("ssh", remote_host, cmd, NULL); |
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exit(1); |
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} |
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close(pipefd[1]); |
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pipe_send_info(pipefd[0], localhost, port, passwd); |
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} |
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return pid; |
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} |
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static void pipe_send_string(int fd, char *s) |
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{ |
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int len = strlen(s); |
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int lenN = htonl(len); |
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write(fd, &lenN, sizeof(int)); |
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write(fd, s, len+1); |
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} |
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static char *pipe_read_string() |
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{ |
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int len; |
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char *s; |
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read(0, &len, sizeof(int)); |
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len = ntohl(len)+1; |
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s = MALLOC(len); |
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read(0, s, len); |
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return s; |
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} |
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/* The data format used by pipe_send_info() is defined in OX-RFC-101. */ |
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void pipe_send_info(int fd, char *hostname, int port, char *password) |
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{ |
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port = htonl(port); |
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write(fd, &port, sizeof(int)); |
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pipe_send_string(fd, hostname); |
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pipe_send_string(fd, password); |
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} |
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void pipe_read_info(char **hostname, int *port, char **password) |
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{ |
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if (read(0, port, sizeof(int)) > 0) { |
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*port = ntohl(*port); |
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*hostname = pipe_read_string(); |
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*password = pipe_read_string(); |
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return 0; |
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} |
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return -1; |
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} |
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/* Example: oxf_execute_cmd(oxfp, "ox_sm1"); */ |
/* Example: oxf_execute_cmd(oxfp, "ox_sm1"); */ |
OXFILE *oxf_execute_cmd(OXFILE *oxfp, char *cmd) |
OXFILE *oxf_execute_cmd(OXFILE *oxfp, char *cmd) |
{ |
{ |
Line 275 OXFILE *oxf_execute_cmd(OXFILE *oxfp, char *cmd) |
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Line 380 OXFILE *oxf_execute_cmd(OXFILE *oxfp, char *cmd) |
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int listened; |
int listened; |
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if ((listened = oxf_listen(&port)) != -1) { |
if ((listened = oxf_listen(&port)) != -1) { |
send_ox_cmo(oxfp, (cmo *)new_cmo_int32(port)); |
cmo_list *args = list_appendl(NULL, list_append(new_cmo_list(), new_cmo_int32(port)), new_cmo_string(cmd), NULL); |
send_ox_cmo(oxfp, (cmo *)new_cmo_string(cmd)); |
send_ox_cmo(oxfp, (cmo *)args); |
send_ox_cmo(oxfp, (cmo *)new_cmo_int32(2)); /* number of arguments */ |
send_ox_command(oxfp, SM_control_spawn_server); |
send_ox_cmo(oxfp, (cmo *)new_cmo_string("oxc_open")); |
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send_ox_command(oxfp, SM_executeFunction); |
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return oxf_connect_passive(listened); |
return oxf_connect_passive(listened); |
} |
} |
return NULL; |
return NULL; |