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2d15f59859
by reading argv[0] from the process group leader of the group that owns the tty (tcgetpgrp()). This can't be done portably so some OS-dependent code is introduced (ugh); OpenBSD, FreeBSD and Linux are supported at the moment. A new window flag, automatic-rename, is available: if this is set to off, the window name is not changed. Specifying a name with the new-window, new-session or rename-window commands will automatically set this flag to off for the window in question. To disable it entirely set the option to off globally (setw -g automatic-rename off).
56 lines
1.4 KiB
C
56 lines
1.4 KiB
C
/* $Id: osdep-linux.c,v 1.1 2009-01-20 19:35:03 nicm Exp $ */
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/*
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* Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifdef __linux__
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <stdio.h>
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#include <unistd.h>
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#include "tmux.h"
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char *
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get_argv0(pid_t pgrp)
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{
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FILE *f;
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char *path, *buf;
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size_t len;
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int ch;
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xasprintf(&path, "/proc/%lld/cmdline", (long long) pgrp);
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if ((f = fopen(path, "r")) == NULL)
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return (NULL);
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len = 0;
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buf = NULL;
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while ((ch = fgetc(f)) != EOF) {
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if (ch == '\0')
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break;
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buf = xrealloc(buf, 1, len + 2);
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buf[len++] = ch;
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}
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if (buf != NULL)
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buf[len] = '\0';
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return (buf);
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}
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#endif
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