Annotation of src/usr.bin/tmux/cmd-run-shell.c, Revision 1.17
1.17 ! nicm 1: /* $OpenBSD: cmd-run-shell.c,v 1.16 2013/03/22 15:55:22 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:
1.13 nicm 32: enum cmd_retval cmd_run_shell_exec(struct cmd *, struct cmd_ctx *);
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",
1.14 nicm 40: "t:", 1, 1,
41: CMD_TARGET_PANE_USAGE " 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;
1.15 nicm 50: struct cmd_ctx *ctx;
1.14 nicm 51: u_int wp_id;
1.2 nicm 52: };
53:
1.14 nicm 54: void
55: cmd_run_shell_print(struct job *job, const char *msg)
56: {
57: struct cmd_run_shell_data *cdata = job->data;
1.15 nicm 58: struct cmd_ctx *ctx = cdata->ctx;
1.14 nicm 59: struct window_pane *wp;
60:
61: wp = window_pane_find_by_id(cdata->wp_id);
62: if (wp == NULL) {
63: ctx->print(ctx, "%s", msg);
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
1.1 nicm 74: cmd_run_shell_exec(struct cmd *self, struct cmd_ctx *ctx)
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:
1.17 ! nicm 84: wl = cmd_find_pane(ctx, args_get(args, 't'), &s, &wp);
! 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;
1.14 nicm 97: cdata->wp_id = wp->id;
1.2 nicm 98:
1.15 nicm 99: cdata->ctx = ctx;
100: cmd_ref_ctx(ctx);
1.2 nicm 101:
1.11 nicm 102: job_run(shellcmd, cmd_run_shell_callback, cmd_run_shell_free, cdata);
1.2 nicm 103:
1.13 nicm 104: return (CMD_RETURN_YIELD); /* don't let client exit */
1.2 nicm 105: }
1.1 nicm 106:
1.2 nicm 107: void
108: cmd_run_shell_callback(struct job *job)
109: {
110: struct cmd_run_shell_data *cdata = job->data;
1.15 nicm 111: struct cmd_ctx *ctx = cdata->ctx;
1.5 nicm 112: char *cmd, *msg, *line;
113: size_t size;
1.2 nicm 114: int retcode;
1.5 nicm 115: u_int lines;
1.7 nicm 116:
117: if (ctx->cmdclient != NULL && ctx->cmdclient->flags & CLIENT_DEAD)
118: return;
119: if (ctx->curclient != NULL && ctx->curclient->flags & CLIENT_DEAD)
120: return;
1.2 nicm 121:
1.5 nicm 122: lines = 0;
123: do {
124: if ((line = evbuffer_readline(job->event->input)) != NULL) {
1.14 nicm 125: cmd_run_shell_print (job, line);
1.16 nicm 126: free(line);
1.5 nicm 127: lines++;
128: }
129: } while (line != NULL);
130:
131: size = EVBUFFER_LENGTH(job->event->input);
132: if (size != 0) {
133: line = xmalloc(size + 1);
134: memcpy(line, EVBUFFER_DATA(job->event->input), size);
135: line[size] = '\0';
1.2 nicm 136:
1.14 nicm 137: cmd_run_shell_print(job, line);
1.5 nicm 138: lines++;
1.2 nicm 139:
1.12 nicm 140: free(line);
1.1 nicm 141: }
142:
1.5 nicm 143: cmd = cdata->cmd;
144:
1.1 nicm 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)
155: ctx->info(ctx, "%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;
1.15 nicm 166: struct cmd_ctx *ctx = cdata->ctx;
1.2 nicm 167:
1.15 nicm 168: if (ctx->cmdclient != NULL)
1.9 nicm 169: ctx->cmdclient->flags |= CLIENT_EXIT;
1.15 nicm 170: cmd_free_ctx(ctx);
1.2 nicm 171:
1.12 nicm 172: free(cdata->cmd);
173: free(cdata);
1.1 nicm 174: }
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