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git://sourceware.org/git/newlib-cygwin.git
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56 lines
1.7 KiB
C
56 lines
1.7 KiB
C
/*************************************************************************\
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* Copyright (C) Michael Kerrisk, 2018. *
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* *
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* This program is free software. You may use, modify, and redistribute it *
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* under the terms of the GNU General Public License as published by the *
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* Free Software Foundation, either version 3 or (at your option) any *
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* later version. This program is distributed without any warranty. See *
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* the file COPYING.gpl-v3 for details. *
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\*************************************************************************/
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/* Listing 57-4 */
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/* us_xfr_cl.c
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An example UNIX domain stream socket client. This client transmits contents
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of stdin to a server socket.
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See also us_xfr_sv.c.
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*/
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#include "us_xfr.h"
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int
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main(int argc, char *argv[])
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{
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struct sockaddr_un addr;
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int sfd;
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ssize_t numRead;
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char buf[BUF_SIZE];
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sfd = socket(AF_UNIX, SOCK_STREAM, 0); /* Create client socket */
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if (sfd == -1)
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errExit("socket");
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/* Construct server address, and make the connection */
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memset(&addr, 0, sizeof(struct sockaddr_un));
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addr.sun_family = AF_UNIX;
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strncpy(addr.sun_path, SV_SOCK_PATH, sizeof(addr.sun_path) - 1);
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if (connect(sfd, (struct sockaddr *) &addr,
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sizeof(struct sockaddr_un)) == -1)
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errExit("connect");
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/* Copy stdin to socket */
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while ((numRead = read(STDIN_FILENO, buf, BUF_SIZE)) > 0)
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if (write(sfd, buf, numRead) != numRead)
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fatal("partial/failed write");
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if (numRead == -1)
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errExit("read");
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exit(EXIT_SUCCESS); /* Closes our socket; server sees EOF */
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}
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