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Annotation of src/usr.bin/tmux/client-fn.c, Revision 1.5

1.5     ! nicm        1: /* $OpenBSD: client-fn.c,v 1.4 2009/07/30 16:32:12 nicm Exp $ */
1.1       nicm        2:
                      3: /*
                      4:  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
                      5:  *
                      6:  * Permission to use, copy, modify, and distribute this software for any
                      7:  * purpose with or without fee is hereby granted, provided that the above
                      8:  * copyright notice and this permission notice appear in all copies.
                      9:  *
                     10:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
                     11:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     12:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
                     13:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     14:  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
                     15:  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
                     16:  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
                     17:  */
                     18:
                     19: #include <sys/types.h>
                     20:
                     21: #include <stdlib.h>
                     22: #include <string.h>
1.4       nicm       23: #include <unistd.h>
1.1       nicm       24:
                     25: #include "tmux.h"
                     26:
                     27: void
                     28: client_fill_session(struct msg_command_data *data)
                     29: {
                     30:        char            *env, *ptr1, *ptr2, buf[256];
                     31:        size_t           len;
                     32:        const char      *errstr;
                     33:        long long        ll;
                     34:
                     35:        data->pid = -1;
                     36:        if ((env = getenv("TMUX")) == NULL)
                     37:                return;
                     38:
                     39:        if ((ptr2 = strrchr(env, ',')) == NULL || ptr2 == env)
                     40:                return;
                     41:        for (ptr1 = ptr2 - 1; ptr1 > env && *ptr1 != ','; ptr1--)
                     42:                ;
                     43:        if (*ptr1 != ',')
                     44:                return;
                     45:        ptr1++;
                     46:        ptr2++;
                     47:
                     48:        len = ptr2 - ptr1 - 1;
                     49:        if (len > (sizeof buf) - 1)
                     50:                return;
                     51:        memcpy(buf, ptr1, len);
                     52:        buf[len] = '\0';
                     53:
                     54:        ll = strtonum(buf, 0, LONG_MAX, &errstr);
                     55:        if (errstr != NULL)
                     56:                return;
                     57:        data->pid = ll;
                     58:
                     59:        ll = strtonum(ptr2, 0, UINT_MAX, &errstr);
                     60:        if (errstr != NULL)
                     61:                return;
                     62:        data->idx = ll;
                     63: }
                     64:
                     65: void
                     66: client_write_server(
1.3       nicm       67:     struct client_ctx *cctx, enum msgtype type, void *buf, size_t len)
1.1       nicm       68: {
1.5     ! nicm       69:        imsg_compose(&cctx->ibuf, type, PROTOCOL_VERSION, -1, -1, buf, len);
1.4       nicm       70: }
                     71:
                     72: void
                     73: client_suspend(void)
                     74: {
                     75:        struct sigaction         act;
                     76:
                     77:        memset(&act, 0, sizeof act);
                     78:        sigemptyset(&act.sa_mask);
                     79:        act.sa_flags = SA_RESTART;
                     80:
                     81:        act.sa_handler = SIG_DFL;
                     82:        if (sigaction(SIGTSTP, &act, NULL) != 0)
                     83:                fatal("sigaction failed");
                     84:
                     85:        act.sa_handler = sighandler;
                     86:        if (sigaction(SIGCONT, &act, NULL) != 0)
                     87:                fatal("sigaction failed");
                     88:
                     89:        kill(getpid(), SIGTSTP);
1.1       nicm       90: }