Annotation of src/usr.bin/tmux/cmd-run-shell.c, Revision 1.26
1.26 ! nicm 1: /* $OpenBSD: cmd-run-shell.c,v 1.25 2014/04/17 07:55:43 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();
1.21 nicm 96: if (s != NULL)
97: format_session(ft, s);
98: if (s != NULL && wl != NULL)
99: format_winlink(ft, s, wl);
100: if (wp != NULL)
101: format_window_pane(ft, wp);
1.17 nicm 102: shellcmd = format_expand(ft, args->argv[0]);
103: format_free(ft);
104:
1.2 nicm 105: cdata = xmalloc(sizeof *cdata);
1.17 nicm 106: cdata->cmd = shellcmd;
1.18 nicm 107: cdata->bflag = args_has(args, 'b');
1.21 nicm 108: cdata->wp_id = wp != NULL ? (int) wp->id : -1;
1.2 nicm 109:
1.18 nicm 110: cdata->cmdq = cmdq;
111: cmdq->references++;
1.2 nicm 112:
1.22 nicm 113: job_run(shellcmd, s, cmd_run_shell_callback, cmd_run_shell_free, cdata);
1.2 nicm 114:
1.18 nicm 115: if (cdata->bflag)
116: return (CMD_RETURN_NORMAL);
117: return (CMD_RETURN_WAIT);
1.2 nicm 118: }
1.1 nicm 119:
1.2 nicm 120: void
121: cmd_run_shell_callback(struct job *job)
122: {
123: struct cmd_run_shell_data *cdata = job->data;
1.18 nicm 124: struct cmd_q *cmdq = cdata->cmdq;
1.5 nicm 125: char *cmd, *msg, *line;
126: size_t size;
1.2 nicm 127: int retcode;
1.5 nicm 128: u_int lines;
1.7 nicm 129:
1.18 nicm 130: if (cmdq->dead)
1.7 nicm 131: return;
1.18 nicm 132: cmd = cdata->cmd;
1.2 nicm 133:
1.5 nicm 134: lines = 0;
135: do {
136: if ((line = evbuffer_readline(job->event->input)) != NULL) {
1.18 nicm 137: cmd_run_shell_print(job, line);
1.16 nicm 138: free(line);
1.5 nicm 139: lines++;
140: }
141: } while (line != NULL);
142:
143: size = EVBUFFER_LENGTH(job->event->input);
144: if (size != 0) {
145: line = xmalloc(size + 1);
146: memcpy(line, EVBUFFER_DATA(job->event->input), size);
147: line[size] = '\0';
1.2 nicm 148:
1.14 nicm 149: cmd_run_shell_print(job, line);
1.5 nicm 150: lines++;
1.2 nicm 151:
1.12 nicm 152: free(line);
1.1 nicm 153: }
154:
155: msg = NULL;
1.2 nicm 156: if (WIFEXITED(job->status)) {
157: if ((retcode = WEXITSTATUS(job->status)) != 0)
158: xasprintf(&msg, "'%s' returned %d", cmd, retcode);
159: } else if (WIFSIGNALED(job->status)) {
160: retcode = WTERMSIG(job->status);
161: xasprintf(&msg, "'%s' terminated by signal %d", cmd, retcode);
1.1 nicm 162: }
1.25 nicm 163: if (msg != NULL)
164: cmd_run_shell_print(job, msg);
165: free(msg);
1.2 nicm 166: }
167:
168: void
169: cmd_run_shell_free(void *data)
170: {
171: struct cmd_run_shell_data *cdata = data;
1.18 nicm 172: struct cmd_q *cmdq = cdata->cmdq;
1.2 nicm 173:
1.18 nicm 174: if (!cmdq_free(cmdq) && !cdata->bflag)
175: cmdq_continue(cmdq);
1.2 nicm 176:
1.12 nicm 177: free(cdata->cmd);
178: free(cdata);
1.1 nicm 179: }
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