Annotation of src/usr.bin/tmux/cmd-run-shell.c, Revision 1.38
1.38 ! nicm 1: /* $OpenBSD: cmd-run-shell.c,v 1.37 2016/10/09 08:06:51 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;
54: int bflag;
1.21 nicm 55: int wp_id;
1.2 nicm 56: };
57:
1.38 ! nicm 58: static void
1.14 nicm 59: cmd_run_shell_print(struct job *job, const char *msg)
60: {
61: struct cmd_run_shell_data *cdata = job->data;
1.21 nicm 62: struct window_pane *wp = NULL;
1.14 nicm 63:
1.21 nicm 64: if (cdata->wp_id != -1)
65: wp = window_pane_find_by_id(cdata->wp_id);
1.14 nicm 66: if (wp == NULL) {
1.18 nicm 67: cmdq_print(cdata->cmdq, "%s", msg);
1.14 nicm 68: return;
69: }
70:
71: if (window_pane_set_mode(wp, &window_copy_mode) == 0)
72: window_copy_init_for_output(wp);
73: if (wp->mode == &window_copy_mode)
74: window_copy_add(wp, "%s", msg);
75: }
76:
1.38 ! nicm 77: static enum cmd_retval
1.18 nicm 78: cmd_run_shell_exec(struct cmd *self, struct cmd_q *cmdq)
1.1 nicm 79: {
1.10 nicm 80: struct args *args = self->args;
1.2 nicm 81: struct cmd_run_shell_data *cdata;
1.17 nicm 82: char *shellcmd;
1.33 nicm 83: struct session *s = cmdq->state.tflag.s;
84: struct winlink *wl = cmdq->state.tflag.wl;
85: struct window_pane *wp = cmdq->state.tflag.wp;
1.17 nicm 86: struct format_tree *ft;
1.30 nicm 87: const char *cwd;
1.14 nicm 88:
1.33 nicm 89: if (cmdq->client != NULL && cmdq->client->session == NULL)
90: cwd = cmdq->client->cwd;
91: else if (s != NULL)
92: cwd = s->cwd;
93: else
94: cwd = NULL;
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;
1.18 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:
1.28 nicm 108: job_run(shellcmd, s, cwd, cmd_run_shell_callback, cmd_run_shell_free,
109: cdata);
1.2 nicm 110:
1.18 nicm 111: if (cdata->bflag)
112: return (CMD_RETURN_NORMAL);
113: return (CMD_RETURN_WAIT);
1.2 nicm 114: }
1.1 nicm 115:
1.38 ! nicm 116: static void
1.2 nicm 117: cmd_run_shell_callback(struct job *job)
118: {
119: struct cmd_run_shell_data *cdata = job->data;
1.18 nicm 120: struct cmd_q *cmdq = cdata->cmdq;
1.5 nicm 121: char *cmd, *msg, *line;
122: size_t size;
1.2 nicm 123: int retcode;
1.5 nicm 124: u_int lines;
1.7 nicm 125:
1.29 nicm 126: if (cmdq->flags & CMD_Q_DEAD)
1.7 nicm 127: return;
1.18 nicm 128: cmd = cdata->cmd;
1.2 nicm 129:
1.5 nicm 130: lines = 0;
131: do {
132: if ((line = evbuffer_readline(job->event->input)) != NULL) {
1.18 nicm 133: cmd_run_shell_print(job, line);
1.16 nicm 134: free(line);
1.5 nicm 135: lines++;
136: }
137: } while (line != NULL);
138:
139: size = EVBUFFER_LENGTH(job->event->input);
140: if (size != 0) {
141: line = xmalloc(size + 1);
142: memcpy(line, EVBUFFER_DATA(job->event->input), size);
143: line[size] = '\0';
1.2 nicm 144:
1.14 nicm 145: cmd_run_shell_print(job, line);
1.5 nicm 146: lines++;
1.2 nicm 147:
1.12 nicm 148: free(line);
1.1 nicm 149: }
150:
151: msg = NULL;
1.2 nicm 152: if (WIFEXITED(job->status)) {
153: if ((retcode = WEXITSTATUS(job->status)) != 0)
154: xasprintf(&msg, "'%s' returned %d", cmd, retcode);
155: } else if (WIFSIGNALED(job->status)) {
156: retcode = WTERMSIG(job->status);
157: xasprintf(&msg, "'%s' terminated by signal %d", cmd, retcode);
1.1 nicm 158: }
1.25 nicm 159: if (msg != NULL)
160: cmd_run_shell_print(job, msg);
161: free(msg);
1.2 nicm 162: }
163:
1.38 ! nicm 164: static void
1.2 nicm 165: cmd_run_shell_free(void *data)
166: {
167: struct cmd_run_shell_data *cdata = data;
1.18 nicm 168: struct cmd_q *cmdq = cdata->cmdq;
1.2 nicm 169:
1.18 nicm 170: if (!cmdq_free(cmdq) && !cdata->bflag)
171: cmdq_continue(cmdq);
1.2 nicm 172:
1.12 nicm 173: free(cdata->cmd);
174: free(cdata);
1.1 nicm 175: }
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