Annotation of src/usr.bin/tmux/cmd-run-shell.c, Revision 1.24
1.24 ! nicm 1: /* $OpenBSD: cmd-run-shell.c,v 1.23 2013/03/25 16:04:07 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: cmd_run_shell_exec
1.1 nicm 45: };
46:
1.2 nicm 47: struct cmd_run_shell_data {
48: char *cmd;
1.18 nicm 49: struct cmd_q *cmdq;
50: int bflag;
1.21 nicm 51: int wp_id;
1.2 nicm 52: };
53:
1.14 nicm 54: void
55: cmd_run_shell_print(struct job *job, const char *msg)
56: {
57: struct cmd_run_shell_data *cdata = job->data;
1.21 nicm 58: struct window_pane *wp = NULL;
1.14 nicm 59:
1.21 nicm 60: if (cdata->wp_id != -1)
61: wp = window_pane_find_by_id(cdata->wp_id);
1.14 nicm 62: if (wp == NULL) {
1.18 nicm 63: cmdq_print(cdata->cmdq, "%s", msg);
1.14 nicm 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:
1.13 nicm 73: enum cmd_retval
1.18 nicm 74: cmd_run_shell_exec(struct cmd *self, struct cmd_q *cmdq)
1.1 nicm 75: {
1.10 nicm 76: struct args *args = self->args;
1.2 nicm 77: struct cmd_run_shell_data *cdata;
1.17 nicm 78: char *shellcmd;
1.23 nicm 79: struct client *c;
1.21 nicm 80: struct session *s = NULL;
81: struct winlink *wl = NULL;
82: struct window_pane *wp = NULL;
1.17 nicm 83: struct format_tree *ft;
1.14 nicm 84:
1.21 nicm 85: if (args_has(args, 't'))
86: wl = cmd_find_pane(cmdq, args_get(args, 't'), &s, &wp);
1.23 nicm 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: }
1.2 nicm 95:
1.17 nicm 96: ft = format_create();
1.21 nicm 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);
1.17 nicm 103: shellcmd = format_expand(ft, args->argv[0]);
104: format_free(ft);
105:
1.2 nicm 106: cdata = xmalloc(sizeof *cdata);
1.17 nicm 107: cdata->cmd = shellcmd;
1.18 nicm 108: cdata->bflag = args_has(args, 'b');
1.21 nicm 109: cdata->wp_id = wp != NULL ? (int) wp->id : -1;
1.2 nicm 110:
1.18 nicm 111: cdata->cmdq = cmdq;
112: cmdq->references++;
1.2 nicm 113:
1.22 nicm 114: job_run(shellcmd, s, cmd_run_shell_callback, cmd_run_shell_free, cdata);
1.2 nicm 115:
1.18 nicm 116: if (cdata->bflag)
117: return (CMD_RETURN_NORMAL);
118: return (CMD_RETURN_WAIT);
1.2 nicm 119: }
1.1 nicm 120:
1.2 nicm 121: void
122: cmd_run_shell_callback(struct job *job)
123: {
124: struct cmd_run_shell_data *cdata = job->data;
1.18 nicm 125: struct cmd_q *cmdq = cdata->cmdq;
1.5 nicm 126: char *cmd, *msg, *line;
127: size_t size;
1.2 nicm 128: int retcode;
1.5 nicm 129: u_int lines;
1.7 nicm 130:
1.18 nicm 131: if (cmdq->dead)
1.7 nicm 132: return;
1.18 nicm 133: cmd = cdata->cmd;
1.2 nicm 134:
1.5 nicm 135: lines = 0;
136: do {
137: if ((line = evbuffer_readline(job->event->input)) != NULL) {
1.18 nicm 138: cmd_run_shell_print(job, line);
1.16 nicm 139: free(line);
1.5 nicm 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';
1.2 nicm 149:
1.14 nicm 150: cmd_run_shell_print(job, line);
1.5 nicm 151: lines++;
1.2 nicm 152:
1.12 nicm 153: free(line);
1.1 nicm 154: }
155:
156: msg = NULL;
1.2 nicm 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);
1.1 nicm 163: }
164: if (msg != NULL) {
1.14 nicm 165: if (lines == 0)
1.18 nicm 166: cmdq_info(cmdq, "%s", msg);
1.1 nicm 167: else
1.14 nicm 168: cmd_run_shell_print(job, msg);
1.12 nicm 169: free(msg);
1.1 nicm 170: }
1.2 nicm 171: }
172:
173: void
174: cmd_run_shell_free(void *data)
175: {
176: struct cmd_run_shell_data *cdata = data;
1.18 nicm 177: struct cmd_q *cmdq = cdata->cmdq;
1.2 nicm 178:
1.18 nicm 179: if (!cmdq_free(cmdq) && !cdata->bflag)
180: cmdq_continue(cmdq);
1.2 nicm 181:
1.12 nicm 182: free(cdata->cmd);
183: free(cdata);
1.1 nicm 184: }
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