Annotation of src/usr.bin/tmux/cmd-run-shell.c, Revision 1.27
1.27 ! nicm 1: /* $OpenBSD: cmd-run-shell.c,v 1.26 2014/10/20 22:29:25 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;
1.14 nicm 83:
1.21 nicm 84: if (args_has(args, 't'))
85: wl = cmd_find_pane(cmdq, args_get(args, 't'), &s, &wp);
1.23 nicm 86: else {
87: c = cmd_find_client(cmdq, NULL, 1);
88: if (c != NULL && c->session != NULL) {
89: s = c->session;
90: wl = s->curw;
91: wp = wl->window->active;
92: }
93: }
1.2 nicm 94:
1.17 nicm 95: ft = format_create();
1.27 ! nicm 96: format_defaults(ft, NULL, s, wl, wp);
1.17 nicm 97: shellcmd = format_expand(ft, args->argv[0]);
98: format_free(ft);
99:
1.2 nicm 100: cdata = xmalloc(sizeof *cdata);
1.17 nicm 101: cdata->cmd = shellcmd;
1.18 nicm 102: cdata->bflag = args_has(args, 'b');
1.21 nicm 103: cdata->wp_id = wp != NULL ? (int) wp->id : -1;
1.2 nicm 104:
1.18 nicm 105: cdata->cmdq = cmdq;
106: cmdq->references++;
1.2 nicm 107:
1.22 nicm 108: job_run(shellcmd, s, cmd_run_shell_callback, cmd_run_shell_free, cdata);
1.2 nicm 109:
1.18 nicm 110: if (cdata->bflag)
111: return (CMD_RETURN_NORMAL);
112: return (CMD_RETURN_WAIT);
1.2 nicm 113: }
1.1 nicm 114:
1.2 nicm 115: void
116: cmd_run_shell_callback(struct job *job)
117: {
118: struct cmd_run_shell_data *cdata = job->data;
1.18 nicm 119: struct cmd_q *cmdq = cdata->cmdq;
1.5 nicm 120: char *cmd, *msg, *line;
121: size_t size;
1.2 nicm 122: int retcode;
1.5 nicm 123: u_int lines;
1.7 nicm 124:
1.18 nicm 125: if (cmdq->dead)
1.7 nicm 126: return;
1.18 nicm 127: cmd = cdata->cmd;
1.2 nicm 128:
1.5 nicm 129: lines = 0;
130: do {
131: if ((line = evbuffer_readline(job->event->input)) != NULL) {
1.18 nicm 132: cmd_run_shell_print(job, line);
1.16 nicm 133: free(line);
1.5 nicm 134: lines++;
135: }
136: } while (line != NULL);
137:
138: size = EVBUFFER_LENGTH(job->event->input);
139: if (size != 0) {
140: line = xmalloc(size + 1);
141: memcpy(line, EVBUFFER_DATA(job->event->input), size);
142: line[size] = '\0';
1.2 nicm 143:
1.14 nicm 144: cmd_run_shell_print(job, line);
1.5 nicm 145: lines++;
1.2 nicm 146:
1.12 nicm 147: free(line);
1.1 nicm 148: }
149:
150: msg = NULL;
1.2 nicm 151: if (WIFEXITED(job->status)) {
152: if ((retcode = WEXITSTATUS(job->status)) != 0)
153: xasprintf(&msg, "'%s' returned %d", cmd, retcode);
154: } else if (WIFSIGNALED(job->status)) {
155: retcode = WTERMSIG(job->status);
156: xasprintf(&msg, "'%s' terminated by signal %d", cmd, retcode);
1.1 nicm 157: }
1.25 nicm 158: if (msg != NULL)
159: cmd_run_shell_print(job, msg);
160: free(msg);
1.2 nicm 161: }
162:
163: void
164: cmd_run_shell_free(void *data)
165: {
166: struct cmd_run_shell_data *cdata = data;
1.18 nicm 167: struct cmd_q *cmdq = cdata->cmdq;
1.2 nicm 168:
1.18 nicm 169: if (!cmdq_free(cmdq) && !cdata->bflag)
170: cmdq_continue(cmdq);
1.2 nicm 171:
1.12 nicm 172: free(cdata->cmd);
173: free(cdata);
1.1 nicm 174: }