Annotation of src/usr.bin/tmux/cmd-run-shell.c, Revision 1.31
1.31 ! nicm 1: /* $OpenBSD: cmd-run-shell.c,v 1.30 2015/10/31 08:13:58 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: cmd_run_shell_exec
1.1 nicm 44: };
45:
1.2 nicm 46: struct cmd_run_shell_data {
47: char *cmd;
1.18 nicm 48: struct cmd_q *cmdq;
49: int bflag;
1.21 nicm 50: int wp_id;
1.2 nicm 51: };
52:
1.14 nicm 53: void
54: cmd_run_shell_print(struct job *job, const char *msg)
55: {
56: struct cmd_run_shell_data *cdata = job->data;
1.21 nicm 57: struct window_pane *wp = NULL;
1.14 nicm 58:
1.21 nicm 59: if (cdata->wp_id != -1)
60: wp = window_pane_find_by_id(cdata->wp_id);
1.14 nicm 61: if (wp == NULL) {
1.18 nicm 62: cmdq_print(cdata->cmdq, "%s", msg);
1.14 nicm 63: return;
64: }
65:
66: if (window_pane_set_mode(wp, &window_copy_mode) == 0)
67: window_copy_init_for_output(wp);
68: if (wp->mode == &window_copy_mode)
69: window_copy_add(wp, "%s", msg);
70: }
71:
1.13 nicm 72: enum cmd_retval
1.18 nicm 73: cmd_run_shell_exec(struct cmd *self, struct cmd_q *cmdq)
1.1 nicm 74: {
1.10 nicm 75: struct args *args = self->args;
1.2 nicm 76: struct cmd_run_shell_data *cdata;
1.17 nicm 77: char *shellcmd;
1.23 nicm 78: struct client *c;
1.21 nicm 79: struct session *s = NULL;
80: struct winlink *wl = NULL;
81: struct window_pane *wp = NULL;
1.17 nicm 82: struct format_tree *ft;
1.30 nicm 83: const char *cwd;
1.14 nicm 84:
1.28 nicm 85: if (args_has(args, 't')) {
1.21 nicm 86: wl = cmd_find_pane(cmdq, args_get(args, 't'), &s, &wp);
1.28 nicm 87: cwd = wp->cwd;
88: } else {
1.23 nicm 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: }
1.28 nicm 95: if (cmdq->client != NULL && cmdq->client->session == NULL)
96: cwd = cmdq->client->cwd;
97: else if (s != NULL)
98: cwd = s->cwd;
99: else
1.30 nicm 100: cwd = NULL;
1.23 nicm 101: }
1.2 nicm 102:
1.31 ! nicm 103: ft = format_create(0);
1.27 nicm 104: format_defaults(ft, NULL, s, wl, wp);
1.17 nicm 105: shellcmd = format_expand(ft, args->argv[0]);
106: format_free(ft);
107:
1.2 nicm 108: cdata = xmalloc(sizeof *cdata);
1.17 nicm 109: cdata->cmd = shellcmd;
1.18 nicm 110: cdata->bflag = args_has(args, 'b');
1.21 nicm 111: cdata->wp_id = wp != NULL ? (int) wp->id : -1;
1.2 nicm 112:
1.18 nicm 113: cdata->cmdq = cmdq;
114: cmdq->references++;
1.2 nicm 115:
1.28 nicm 116: job_run(shellcmd, s, cwd, cmd_run_shell_callback, cmd_run_shell_free,
117: cdata);
1.2 nicm 118:
1.18 nicm 119: if (cdata->bflag)
120: return (CMD_RETURN_NORMAL);
121: return (CMD_RETURN_WAIT);
1.2 nicm 122: }
1.1 nicm 123:
1.2 nicm 124: void
125: cmd_run_shell_callback(struct job *job)
126: {
127: struct cmd_run_shell_data *cdata = job->data;
1.18 nicm 128: struct cmd_q *cmdq = cdata->cmdq;
1.5 nicm 129: char *cmd, *msg, *line;
130: size_t size;
1.2 nicm 131: int retcode;
1.5 nicm 132: u_int lines;
1.7 nicm 133:
1.29 nicm 134: if (cmdq->flags & CMD_Q_DEAD)
1.7 nicm 135: return;
1.18 nicm 136: cmd = cdata->cmd;
1.2 nicm 137:
1.5 nicm 138: lines = 0;
139: do {
140: if ((line = evbuffer_readline(job->event->input)) != NULL) {
1.18 nicm 141: cmd_run_shell_print(job, line);
1.16 nicm 142: free(line);
1.5 nicm 143: lines++;
144: }
145: } while (line != NULL);
146:
147: size = EVBUFFER_LENGTH(job->event->input);
148: if (size != 0) {
149: line = xmalloc(size + 1);
150: memcpy(line, EVBUFFER_DATA(job->event->input), size);
151: line[size] = '\0';
1.2 nicm 152:
1.14 nicm 153: cmd_run_shell_print(job, line);
1.5 nicm 154: lines++;
1.2 nicm 155:
1.12 nicm 156: free(line);
1.1 nicm 157: }
158:
159: msg = NULL;
1.2 nicm 160: if (WIFEXITED(job->status)) {
161: if ((retcode = WEXITSTATUS(job->status)) != 0)
162: xasprintf(&msg, "'%s' returned %d", cmd, retcode);
163: } else if (WIFSIGNALED(job->status)) {
164: retcode = WTERMSIG(job->status);
165: xasprintf(&msg, "'%s' terminated by signal %d", cmd, retcode);
1.1 nicm 166: }
1.25 nicm 167: if (msg != NULL)
168: cmd_run_shell_print(job, msg);
169: free(msg);
1.2 nicm 170: }
171:
172: void
173: cmd_run_shell_free(void *data)
174: {
175: struct cmd_run_shell_data *cdata = data;
1.18 nicm 176: struct cmd_q *cmdq = cdata->cmdq;
1.2 nicm 177:
1.18 nicm 178: if (!cmdq_free(cmdq) && !cdata->bflag)
179: cmdq_continue(cmdq);
1.2 nicm 180:
1.12 nicm 181: free(cdata->cmd);
182: free(cdata);
1.1 nicm 183: }
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