version 1.7, 2000/11/28 22:11:14 |
version 1.8, 2000/12/01 07:27:03 |
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/* -*- mode: C; coding: euc-japan -*- */ |
/* -*- mode: C; coding: euc-japan -*- */ |
/* $OpenXM: OpenXM/src/ox_toolkit/oxf.c,v 1.6 2000/11/28 04:24:12 ohara Exp $ */ |
/* $OpenXM: OpenXM/src/ox_toolkit/oxf.c,v 1.7 2000/11/28 22:11:14 ohara Exp $ */ |
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/* |
/* |
This module includes functions for sending/receiveng CMO's. |
This module includes functions for sending/receiveng CMO's. |
Line 272 int oxc_start(char *remote_host, short port, char *pas |
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Line 272 int oxc_start(char *remote_host, short port, char *pas |
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} |
} |
} |
} |
return pid; |
return pid; |
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} |
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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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/* pipe_*_info で送る情報の形式の定義 */ |
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/* Integer port : 4byte, ポート番号, Network byte order |
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String hostname: ホスト名 |
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String password: パスワード |
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String は C のストリングではなくて、cmo_string のような、長さ付きの |
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ストリングである。ただし、\0 文字を含む。 |
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すなわち、"Hello" は (int32)6 H e l l o \0 に展開される(合計10byte)。 |
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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)+1; |
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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); |
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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); |
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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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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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/* Example: oxf_execute_cmd(oxfp, "ox_sm1"); */ |
/* Example: oxf_execute_cmd(oxfp, "ox_sm1"); */ |