Annotation of src/usr.bin/tmux/cmd-run-shell.c, Revision 1.40
1.40 ! nicm 1: /* $OpenBSD: cmd-run-shell.c,v 1.39 2016/10/15 23:06:39 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:
1.38 nicm 32: static enum cmd_retval cmd_run_shell_exec(struct cmd *, struct cmd_q *);
1.14 nicm 33:
1.38 nicm 34: static void cmd_run_shell_callback(struct job *);
35: static void cmd_run_shell_free(void *);
36: static 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 = {
1.34 nicm 39: .name = "run-shell",
40: .alias = "run",
41:
42: .args = { "bt:", 1, 1 },
43: .usage = "[-b] " CMD_TARGET_PANE_USAGE " shell-command",
44:
1.35 nicm 45: .tflag = CMD_PANE_CANFAIL,
46:
47: .flags = 0,
1.34 nicm 48: .exec = cmd_run_shell_exec
1.1 nicm 49: };
50:
1.2 nicm 51: struct cmd_run_shell_data {
52: char *cmd;
1.18 nicm 53: struct cmd_q *cmdq;
1.21 nicm 54: int wp_id;
1.2 nicm 55: };
56:
1.38 nicm 57: static void
1.14 nicm 58: cmd_run_shell_print(struct job *job, const char *msg)
59: {
60: struct cmd_run_shell_data *cdata = job->data;
1.21 nicm 61: struct window_pane *wp = NULL;
1.14 nicm 62:
1.21 nicm 63: if (cdata->wp_id != -1)
64: wp = window_pane_find_by_id(cdata->wp_id);
1.14 nicm 65: if (wp == NULL) {
1.18 nicm 66: cmdq_print(cdata->cmdq, "%s", msg);
1.14 nicm 67: return;
68: }
69:
70: if (window_pane_set_mode(wp, &window_copy_mode) == 0)
71: window_copy_init_for_output(wp);
72: if (wp->mode == &window_copy_mode)
73: window_copy_add(wp, "%s", msg);
74: }
75:
1.38 nicm 76: static enum cmd_retval
1.18 nicm 77: cmd_run_shell_exec(struct cmd *self, struct cmd_q *cmdq)
1.1 nicm 78: {
1.10 nicm 79: struct args *args = self->args;
1.2 nicm 80: struct cmd_run_shell_data *cdata;
1.17 nicm 81: char *shellcmd;
1.33 nicm 82: struct session *s = cmdq->state.tflag.s;
83: struct winlink *wl = cmdq->state.tflag.wl;
84: struct window_pane *wp = cmdq->state.tflag.wp;
1.17 nicm 85: struct format_tree *ft;
1.30 nicm 86: const char *cwd;
1.14 nicm 87:
1.33 nicm 88: if (cmdq->client != NULL && cmdq->client->session == NULL)
89: cwd = cmdq->client->cwd;
90: else if (s != NULL)
91: cwd = s->cwd;
92: else
93: cwd = NULL;
1.40 ! nicm 94:
1.32 nicm 95: ft = format_create(cmdq, 0);
1.36 nicm 96: format_defaults(ft, cmdq->state.c, s, wl, wp);
1.17 nicm 97: shellcmd = format_expand(ft, args->argv[0]);
98: format_free(ft);
99:
1.37 nicm 100: cdata = xcalloc(1, sizeof *cdata);
1.17 nicm 101: cdata->cmd = shellcmd;
1.39 nicm 102:
103: if (args_has(args, 't') && wp != NULL)
104: cdata->wp_id = wp->id;
105: else
106: cdata->wp_id = -1;
1.2 nicm 107:
1.40 ! nicm 108: if (args_has(args, 't') && wp != NULL)
! 109: cdata->wp_id = wp->id;
! 110: else
! 111: cdata->wp_id = -1;
! 112:
! 113: if (!args_has(args, 'b'))
! 114: cdata->cmdq = cmdq;
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:
1.40 ! nicm 119: if (args_has(args, 'b'))
1.18 nicm 120: return (CMD_RETURN_NORMAL);
121: return (CMD_RETURN_WAIT);
1.2 nicm 122: }
1.1 nicm 123:
1.38 nicm 124: static void
1.2 nicm 125: cmd_run_shell_callback(struct job *job)
126: {
127: struct cmd_run_shell_data *cdata = job->data;
1.40 ! nicm 128: char *cmd = cdata->cmd, *msg, *line;
1.5 nicm 129: size_t size;
1.2 nicm 130: int retcode;
1.5 nicm 131: u_int lines;
1.7 nicm 132:
1.5 nicm 133: lines = 0;
134: do {
135: if ((line = evbuffer_readline(job->event->input)) != NULL) {
1.18 nicm 136: cmd_run_shell_print(job, line);
1.16 nicm 137: free(line);
1.5 nicm 138: lines++;
139: }
140: } while (line != NULL);
141:
142: size = EVBUFFER_LENGTH(job->event->input);
143: if (size != 0) {
144: line = xmalloc(size + 1);
145: memcpy(line, EVBUFFER_DATA(job->event->input), size);
146: line[size] = '\0';
1.2 nicm 147:
1.14 nicm 148: cmd_run_shell_print(job, line);
1.5 nicm 149: lines++;
1.2 nicm 150:
1.12 nicm 151: free(line);
1.1 nicm 152: }
153:
154: msg = NULL;
1.2 nicm 155: if (WIFEXITED(job->status)) {
156: if ((retcode = WEXITSTATUS(job->status)) != 0)
157: xasprintf(&msg, "'%s' returned %d", cmd, retcode);
158: } else if (WIFSIGNALED(job->status)) {
159: retcode = WTERMSIG(job->status);
160: xasprintf(&msg, "'%s' terminated by signal %d", cmd, retcode);
1.1 nicm 161: }
1.25 nicm 162: if (msg != NULL)
163: cmd_run_shell_print(job, msg);
164: free(msg);
1.40 ! nicm 165:
! 166: if (cdata->cmdq != NULL)
! 167: cdata->cmdq->flags &= ~CMD_Q_WAITING;
1.2 nicm 168: }
169:
1.38 nicm 170: static void
1.2 nicm 171: cmd_run_shell_free(void *data)
172: {
173: struct cmd_run_shell_data *cdata = data;
174:
1.12 nicm 175: free(cdata->cmd);
176: free(cdata);
1.1 nicm 177: }
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