1 /* Id */
2
3 /*
4 * Copyright (c) 2009 Tiago Cunha <me@tiagocunha.org>
5 * Copyright (c) 2009 Nicholas Marriott <nicm@openbsd.org>
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
23 #include <stdlib.h>
24 #include <string.h>
25
26 #include "tmux.h"
27
28 /*
29 * Runs a command without a window.
30 */
31
32 enum cmd_retval cmd_run_shell_exec(struct cmd *, struct cmd_q *);
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 *);
37
38 const struct cmd_entry cmd_run_shell_entry = {
39 "run-shell", "run",
40 "bt:", 1, 1,
41 "[-b] " CMD_TARGET_PANE_USAGE " shell-command",
42 0,
43 NULL,
44 cmd_run_shell_exec
45 };
46
47 struct cmd_run_shell_data {
48 char *cmd;
49 struct cmd_q *cmdq;
50 int bflag;
51 int wp_id;
52 };
53
54 void
cmd_run_shell_print(struct job * job,const char * msg)55 cmd_run_shell_print(struct job *job, const char *msg)
56 {
57 struct cmd_run_shell_data *cdata = job->data;
58 struct window_pane *wp = NULL;
59
60 if (cdata->wp_id != -1)
61 wp = window_pane_find_by_id(cdata->wp_id);
62 if (wp == NULL) {
63 cmdq_print(cdata->cmdq, "%s", msg);
64 return;
65 }
66
67 if (window_pane_set_mode(wp, &window_copy_mode) == 0)
68 window_copy_init_for_output(wp);
69 if (wp->mode == &window_copy_mode)
70 window_copy_add(wp, "%s", msg);
71 }
72
73 enum cmd_retval
cmd_run_shell_exec(struct cmd * self,struct cmd_q * cmdq)74 cmd_run_shell_exec(struct cmd *self, struct cmd_q *cmdq)
75 {
76 struct args *args = self->args;
77 struct cmd_run_shell_data *cdata;
78 char *shellcmd;
79 struct client *c;
80 struct session *s = NULL;
81 struct winlink *wl = NULL;
82 struct window_pane *wp = NULL;
83 struct format_tree *ft;
84
85 if (args_has(args, 't'))
86 wl = cmd_find_pane(cmdq, args_get(args, 't'), &s, &wp);
87 else {
88 c = cmd_find_client(cmdq, NULL, 1);
89 if (c != NULL && c->session != NULL) {
90 s = c->session;
91 wl = s->curw;
92 wp = wl->window->active;
93 }
94 }
95
96 ft = format_create();
97 if (s != NULL)
98 format_session(ft, s);
99 if (s != NULL && wl != NULL)
100 format_winlink(ft, s, wl);
101 if (wp != NULL)
102 format_window_pane(ft, wp);
103 shellcmd = format_expand(ft, args->argv[0]);
104 format_free(ft);
105
106 cdata = xmalloc(sizeof *cdata);
107 cdata->cmd = shellcmd;
108 cdata->bflag = args_has(args, 'b');
109 cdata->wp_id = wp != NULL ? (int) wp->id : -1;
110
111 cdata->cmdq = cmdq;
112 cmdq->references++;
113
114 job_run(shellcmd, s, cmd_run_shell_callback, cmd_run_shell_free, cdata);
115
116 if (cdata->bflag)
117 return (CMD_RETURN_NORMAL);
118 return (CMD_RETURN_WAIT);
119 }
120
121 void
cmd_run_shell_callback(struct job * job)122 cmd_run_shell_callback(struct job *job)
123 {
124 struct cmd_run_shell_data *cdata = job->data;
125 struct cmd_q *cmdq = cdata->cmdq;
126 char *cmd, *msg, *line;
127 size_t size;
128 int retcode;
129 u_int lines;
130
131 if (cmdq->dead)
132 return;
133 cmd = cdata->cmd;
134
135 lines = 0;
136 do {
137 if ((line = evbuffer_readline(job->event->input)) != NULL) {
138 cmd_run_shell_print(job, line);
139 free(line);
140 lines++;
141 }
142 } while (line != NULL);
143
144 size = EVBUFFER_LENGTH(job->event->input);
145 if (size != 0) {
146 line = xmalloc(size + 1);
147 memcpy(line, EVBUFFER_DATA(job->event->input), size);
148 line[size] = '\0';
149
150 cmd_run_shell_print(job, line);
151 lines++;
152
153 free(line);
154 }
155
156 msg = NULL;
157 if (WIFEXITED(job->status)) {
158 if ((retcode = WEXITSTATUS(job->status)) != 0)
159 xasprintf(&msg, "'%s' returned %d", cmd, retcode);
160 } else if (WIFSIGNALED(job->status)) {
161 retcode = WTERMSIG(job->status);
162 xasprintf(&msg, "'%s' terminated by signal %d", cmd, retcode);
163 }
164 if (msg != NULL) {
165 if (lines == 0)
166 cmdq_info(cmdq, "%s", msg);
167 else
168 cmd_run_shell_print(job, msg);
169 free(msg);
170 }
171 }
172
173 void
cmd_run_shell_free(void * data)174 cmd_run_shell_free(void *data)
175 {
176 struct cmd_run_shell_data *cdata = data;
177 struct cmd_q *cmdq = cdata->cmdq;
178
179 if (!cmdq_free(cmdq) && !cdata->bflag)
180 cmdq_continue(cmdq);
181
182 free(cdata->cmd);
183 free(cdata);
184 }
185