Annotation of src/usr.bin/tmux/cmd-run-shell.c, Revision 1.18
1.18 ! nicm 1: /* $OpenBSD: cmd-run-shell.c,v 1.17 2013/03/24 09:33:35 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;
1.14 nicm 52: u_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;
59: struct window_pane *wp;
60:
61: wp = window_pane_find_by_id(cdata->wp_id);
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;
79: struct session *s;
80: struct winlink *wl;
1.14 nicm 81: struct window_pane *wp;
1.17 nicm 82: struct format_tree *ft;
1.14 nicm 83:
1.18 ! nicm 84: wl = cmd_find_pane(cmdq, args_get(args, 't'), &s, &wp);
1.17 nicm 85: if (wl == NULL)
1.14 nicm 86: return (CMD_RETURN_ERROR);
1.2 nicm 87:
1.17 nicm 88: ft = format_create();
89: format_session(ft, s);
90: format_winlink(ft, s, wl);
91: format_window_pane(ft, wp);
92: shellcmd = format_expand(ft, args->argv[0]);
93: format_free(ft);
94:
1.2 nicm 95: cdata = xmalloc(sizeof *cdata);
1.17 nicm 96: cdata->cmd = shellcmd;
1.18 ! nicm 97: cdata->bflag = args_has(args, 'b');
1.14 nicm 98: cdata->wp_id = wp->id;
1.2 nicm 99:
1.18 ! nicm 100: cdata->cmdq = cmdq;
! 101: cmdq->references++;
1.2 nicm 102:
1.11 nicm 103: job_run(shellcmd, cmd_run_shell_callback, cmd_run_shell_free, cdata);
1.2 nicm 104:
1.18 ! nicm 105: if (cdata->bflag)
! 106: return (CMD_RETURN_NORMAL);
! 107: return (CMD_RETURN_WAIT);
1.2 nicm 108: }
1.1 nicm 109:
1.2 nicm 110: void
111: cmd_run_shell_callback(struct job *job)
112: {
113: struct cmd_run_shell_data *cdata = job->data;
1.18 ! nicm 114: struct cmd_q *cmdq = cdata->cmdq;
1.5 nicm 115: char *cmd, *msg, *line;
116: size_t size;
1.2 nicm 117: int retcode;
1.5 nicm 118: u_int lines;
1.7 nicm 119:
1.18 ! nicm 120: if (cmdq->dead)
1.7 nicm 121: return;
1.18 ! nicm 122: cmd = cdata->cmd;
1.2 nicm 123:
1.5 nicm 124: lines = 0;
125: do {
126: if ((line = evbuffer_readline(job->event->input)) != NULL) {
1.18 ! nicm 127: cmd_run_shell_print(job, line);
1.16 nicm 128: free(line);
1.5 nicm 129: lines++;
130: }
131: } while (line != NULL);
132:
133: size = EVBUFFER_LENGTH(job->event->input);
134: if (size != 0) {
135: line = xmalloc(size + 1);
136: memcpy(line, EVBUFFER_DATA(job->event->input), size);
137: line[size] = '\0';
1.2 nicm 138:
1.14 nicm 139: cmd_run_shell_print(job, line);
1.5 nicm 140: lines++;
1.2 nicm 141:
1.12 nicm 142: free(line);
1.1 nicm 143: }
144:
145: msg = NULL;
1.2 nicm 146: if (WIFEXITED(job->status)) {
147: if ((retcode = WEXITSTATUS(job->status)) != 0)
148: xasprintf(&msg, "'%s' returned %d", cmd, retcode);
149: } else if (WIFSIGNALED(job->status)) {
150: retcode = WTERMSIG(job->status);
151: xasprintf(&msg, "'%s' terminated by signal %d", cmd, retcode);
1.1 nicm 152: }
153: if (msg != NULL) {
1.14 nicm 154: if (lines == 0)
1.18 ! nicm 155: cmdq_info(cmdq, "%s", msg);
1.1 nicm 156: else
1.14 nicm 157: cmd_run_shell_print(job, msg);
1.12 nicm 158: free(msg);
1.1 nicm 159: }
1.2 nicm 160: }
161:
162: void
163: cmd_run_shell_free(void *data)
164: {
165: struct cmd_run_shell_data *cdata = data;
1.18 ! nicm 166: struct cmd_q *cmdq = cdata->cmdq;
1.2 nicm 167:
1.18 ! nicm 168: if (!cmdq_free(cmdq) && !cdata->bflag)
! 169: cmdq_continue(cmdq);
1.2 nicm 170:
1.12 nicm 171: free(cdata->cmd);
172: free(cdata);
1.1 nicm 173: }
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