Annotation of src/usr.bin/tmux/cmd-run-shell.c, Revision 1.34
1.34 ! nicm 1: /* $OpenBSD: cmd-run-shell.c,v 1.33 2015/12/13 14:32:38 nicm Exp $ */
1.1 nicm 2:
3: /*
4: * Copyright (c) 2009 Tiago Cunha <me@tiagocunha.org>
1.3 nicm 5: * Copyright (c) 2009 Nicholas Marriott <nicm@openbsd.org>
1.1 nicm 6: *
7: * Permission to use, copy, modify, and distribute this software for any
8: * purpose with or without fee is hereby granted, provided that the above
9: * copyright notice and this permission notice appear in all copies.
10: *
11: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15: * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
16: * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
17: * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18: */
19:
20: #include <sys/types.h>
21: #include <sys/wait.h>
22:
1.12 nicm 23: #include <stdlib.h>
1.1 nicm 24: #include <string.h>
25:
26: #include "tmux.h"
27:
28: /*
29: * Runs a command without a window.
30: */
31:
1.18 nicm 32: enum cmd_retval cmd_run_shell_exec(struct cmd *, struct cmd_q *);
1.14 nicm 33:
34: void cmd_run_shell_callback(struct job *);
35: void cmd_run_shell_free(void *);
36: void cmd_run_shell_print(struct job *, const char *);
1.2 nicm 37:
1.1 nicm 38: const struct cmd_entry cmd_run_shell_entry = {
1.34 ! nicm 39: .name = "run-shell",
! 40: .alias = "run",
! 41:
! 42: .args = { "bt:", 1, 1 },
! 43: .usage = "[-b] " CMD_TARGET_PANE_USAGE " shell-command",
! 44:
! 45: .flags = CMD_PANE_T|CMD_CANFAIL,
! 46: .exec = cmd_run_shell_exec
1.1 nicm 47: };
48:
1.2 nicm 49: struct cmd_run_shell_data {
50: char *cmd;
1.18 nicm 51: struct cmd_q *cmdq;
52: int bflag;
1.21 nicm 53: int wp_id;
1.2 nicm 54: };
55:
1.14 nicm 56: void
57: cmd_run_shell_print(struct job *job, const char *msg)
58: {
59: struct cmd_run_shell_data *cdata = job->data;
1.21 nicm 60: struct window_pane *wp = NULL;
1.14 nicm 61:
1.21 nicm 62: if (cdata->wp_id != -1)
63: wp = window_pane_find_by_id(cdata->wp_id);
1.14 nicm 64: if (wp == NULL) {
1.18 nicm 65: cmdq_print(cdata->cmdq, "%s", msg);
1.14 nicm 66: return;
67: }
68:
69: if (window_pane_set_mode(wp, &window_copy_mode) == 0)
70: window_copy_init_for_output(wp);
71: if (wp->mode == &window_copy_mode)
72: window_copy_add(wp, "%s", msg);
73: }
74:
1.13 nicm 75: enum cmd_retval
1.18 nicm 76: cmd_run_shell_exec(struct cmd *self, struct cmd_q *cmdq)
1.1 nicm 77: {
1.10 nicm 78: struct args *args = self->args;
1.2 nicm 79: struct cmd_run_shell_data *cdata;
1.17 nicm 80: char *shellcmd;
1.33 nicm 81: struct session *s = cmdq->state.tflag.s;
82: struct winlink *wl = cmdq->state.tflag.wl;
83: struct window_pane *wp = cmdq->state.tflag.wp;
1.17 nicm 84: struct format_tree *ft;
1.30 nicm 85: const char *cwd;
1.14 nicm 86:
1.33 nicm 87: if (cmdq->client != NULL && cmdq->client->session == NULL)
88: cwd = cmdq->client->cwd;
89: else if (s != NULL)
90: cwd = s->cwd;
91: else
92: cwd = NULL;
1.32 nicm 93: ft = format_create(cmdq, 0);
1.27 nicm 94: format_defaults(ft, NULL, s, wl, wp);
1.17 nicm 95: shellcmd = format_expand(ft, args->argv[0]);
96: format_free(ft);
97:
1.2 nicm 98: cdata = xmalloc(sizeof *cdata);
1.17 nicm 99: cdata->cmd = shellcmd;
1.18 nicm 100: cdata->bflag = args_has(args, 'b');
1.21 nicm 101: cdata->wp_id = wp != NULL ? (int) wp->id : -1;
1.2 nicm 102:
1.18 nicm 103: cdata->cmdq = cmdq;
104: cmdq->references++;
1.2 nicm 105:
1.28 nicm 106: job_run(shellcmd, s, cwd, cmd_run_shell_callback, cmd_run_shell_free,
107: cdata);
1.2 nicm 108:
1.18 nicm 109: if (cdata->bflag)
110: return (CMD_RETURN_NORMAL);
111: return (CMD_RETURN_WAIT);
1.2 nicm 112: }
1.1 nicm 113:
1.2 nicm 114: void
115: cmd_run_shell_callback(struct job *job)
116: {
117: struct cmd_run_shell_data *cdata = job->data;
1.18 nicm 118: struct cmd_q *cmdq = cdata->cmdq;
1.5 nicm 119: char *cmd, *msg, *line;
120: size_t size;
1.2 nicm 121: int retcode;
1.5 nicm 122: u_int lines;
1.7 nicm 123:
1.29 nicm 124: if (cmdq->flags & CMD_Q_DEAD)
1.7 nicm 125: return;
1.18 nicm 126: cmd = cdata->cmd;
1.2 nicm 127:
1.5 nicm 128: lines = 0;
129: do {
130: if ((line = evbuffer_readline(job->event->input)) != NULL) {
1.18 nicm 131: cmd_run_shell_print(job, line);
1.16 nicm 132: free(line);
1.5 nicm 133: lines++;
134: }
135: } while (line != NULL);
136:
137: size = EVBUFFER_LENGTH(job->event->input);
138: if (size != 0) {
139: line = xmalloc(size + 1);
140: memcpy(line, EVBUFFER_DATA(job->event->input), size);
141: line[size] = '\0';
1.2 nicm 142:
1.14 nicm 143: cmd_run_shell_print(job, line);
1.5 nicm 144: lines++;
1.2 nicm 145:
1.12 nicm 146: free(line);
1.1 nicm 147: }
148:
149: msg = NULL;
1.2 nicm 150: if (WIFEXITED(job->status)) {
151: if ((retcode = WEXITSTATUS(job->status)) != 0)
152: xasprintf(&msg, "'%s' returned %d", cmd, retcode);
153: } else if (WIFSIGNALED(job->status)) {
154: retcode = WTERMSIG(job->status);
155: xasprintf(&msg, "'%s' terminated by signal %d", cmd, retcode);
1.1 nicm 156: }
1.25 nicm 157: if (msg != NULL)
158: cmd_run_shell_print(job, msg);
159: free(msg);
1.2 nicm 160: }
161:
162: void
163: cmd_run_shell_free(void *data)
164: {
165: struct cmd_run_shell_data *cdata = data;
1.18 nicm 166: struct cmd_q *cmdq = cdata->cmdq;
1.2 nicm 167:
1.18 nicm 168: if (!cmdq_free(cmdq) && !cdata->bflag)
169: cmdq_continue(cmdq);
1.2 nicm 170:
1.12 nicm 171: free(cdata->cmd);
172: free(cdata);
1.1 nicm 173: }
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