Annotation of src/usr.bin/tmux/cmd-run-shell.c, Revision 1.23
1.23 ! nicm 1: /* $OpenBSD: cmd-run-shell.c,v 1.22 2013/03/25 11:43:01 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 = {
39: "run-shell", "run",
1.18 nicm 40: "bt:", 1, 1,
41: "[-b] " CMD_TARGET_PANE_USAGE " shell-command",
1.10 nicm 42: 0,
43: NULL,
44: NULL,
45: cmd_run_shell_exec
1.1 nicm 46: };
47:
1.2 nicm 48: struct cmd_run_shell_data {
49: char *cmd;
1.18 nicm 50: struct cmd_q *cmdq;
51: int bflag;
1.21 nicm 52: int wp_id;
1.2 nicm 53: };
54:
1.14 nicm 55: void
56: cmd_run_shell_print(struct job *job, const char *msg)
57: {
58: struct cmd_run_shell_data *cdata = job->data;
1.21 nicm 59: struct window_pane *wp = NULL;
1.14 nicm 60:
1.21 nicm 61: if (cdata->wp_id != -1)
62: wp = window_pane_find_by_id(cdata->wp_id);
1.14 nicm 63: if (wp == NULL) {
1.18 nicm 64: cmdq_print(cdata->cmdq, "%s", msg);
1.14 nicm 65: return;
66: }
67:
68: if (window_pane_set_mode(wp, &window_copy_mode) == 0)
69: window_copy_init_for_output(wp);
70: if (wp->mode == &window_copy_mode)
71: window_copy_add(wp, "%s", msg);
72: }
73:
1.13 nicm 74: enum cmd_retval
1.18 nicm 75: cmd_run_shell_exec(struct cmd *self, struct cmd_q *cmdq)
1.1 nicm 76: {
1.10 nicm 77: struct args *args = self->args;
1.2 nicm 78: struct cmd_run_shell_data *cdata;
1.17 nicm 79: char *shellcmd;
1.23 ! nicm 80: struct client *c;
1.21 nicm 81: struct session *s = NULL;
82: struct winlink *wl = NULL;
83: struct window_pane *wp = NULL;
1.17 nicm 84: struct format_tree *ft;
1.14 nicm 85:
1.21 nicm 86: if (args_has(args, 't'))
87: wl = cmd_find_pane(cmdq, args_get(args, 't'), &s, &wp);
1.23 ! nicm 88: else {
! 89: c = cmd_find_client(cmdq, NULL, 1);
! 90: if (c != NULL && c->session != NULL) {
! 91: s = c->session;
! 92: wl = s->curw;
! 93: wp = wl->window->active;
! 94: }
! 95: }
1.2 nicm 96:
1.17 nicm 97: ft = format_create();
1.21 nicm 98: if (s != NULL)
99: format_session(ft, s);
100: if (s != NULL && wl != NULL)
101: format_winlink(ft, s, wl);
102: if (wp != NULL)
103: format_window_pane(ft, wp);
1.17 nicm 104: shellcmd = format_expand(ft, args->argv[0]);
105: format_free(ft);
106:
1.2 nicm 107: cdata = xmalloc(sizeof *cdata);
1.17 nicm 108: cdata->cmd = shellcmd;
1.18 nicm 109: cdata->bflag = args_has(args, 'b');
1.21 nicm 110: cdata->wp_id = wp != NULL ? (int) wp->id : -1;
1.2 nicm 111:
1.18 nicm 112: cdata->cmdq = cmdq;
113: cmdq->references++;
1.2 nicm 114:
1.22 nicm 115: job_run(shellcmd, s, cmd_run_shell_callback, cmd_run_shell_free, cdata);
1.2 nicm 116:
1.18 nicm 117: if (cdata->bflag)
118: return (CMD_RETURN_NORMAL);
119: return (CMD_RETURN_WAIT);
1.2 nicm 120: }
1.1 nicm 121:
1.2 nicm 122: void
123: cmd_run_shell_callback(struct job *job)
124: {
125: struct cmd_run_shell_data *cdata = job->data;
1.18 nicm 126: struct cmd_q *cmdq = cdata->cmdq;
1.5 nicm 127: char *cmd, *msg, *line;
128: size_t size;
1.2 nicm 129: int retcode;
1.5 nicm 130: u_int lines;
1.7 nicm 131:
1.18 nicm 132: if (cmdq->dead)
1.7 nicm 133: return;
1.18 nicm 134: cmd = cdata->cmd;
1.2 nicm 135:
1.5 nicm 136: lines = 0;
137: do {
138: if ((line = evbuffer_readline(job->event->input)) != NULL) {
1.18 nicm 139: cmd_run_shell_print(job, line);
1.16 nicm 140: free(line);
1.5 nicm 141: lines++;
142: }
143: } while (line != NULL);
144:
145: size = EVBUFFER_LENGTH(job->event->input);
146: if (size != 0) {
147: line = xmalloc(size + 1);
148: memcpy(line, EVBUFFER_DATA(job->event->input), size);
149: line[size] = '\0';
1.2 nicm 150:
1.14 nicm 151: cmd_run_shell_print(job, line);
1.5 nicm 152: lines++;
1.2 nicm 153:
1.12 nicm 154: free(line);
1.1 nicm 155: }
156:
157: msg = NULL;
1.2 nicm 158: if (WIFEXITED(job->status)) {
159: if ((retcode = WEXITSTATUS(job->status)) != 0)
160: xasprintf(&msg, "'%s' returned %d", cmd, retcode);
161: } else if (WIFSIGNALED(job->status)) {
162: retcode = WTERMSIG(job->status);
163: xasprintf(&msg, "'%s' terminated by signal %d", cmd, retcode);
1.1 nicm 164: }
165: if (msg != NULL) {
1.14 nicm 166: if (lines == 0)
1.18 nicm 167: cmdq_info(cmdq, "%s", msg);
1.1 nicm 168: else
1.14 nicm 169: cmd_run_shell_print(job, msg);
1.12 nicm 170: free(msg);
1.1 nicm 171: }
1.2 nicm 172: }
173:
174: void
175: cmd_run_shell_free(void *data)
176: {
177: struct cmd_run_shell_data *cdata = data;
1.18 nicm 178: struct cmd_q *cmdq = cdata->cmdq;
1.2 nicm 179:
1.18 nicm 180: if (!cmdq_free(cmdq) && !cdata->bflag)
181: cmdq_continue(cmdq);
1.2 nicm 182:
1.12 nicm 183: free(cdata->cmd);
184: free(cdata);
1.1 nicm 185: }
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