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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.bin/tmux/cmd-if-shell.c	Lines:	0	86	0.0 %
Date:	2016-12-06	Branches:	0	48	0.0 %


/* $OpenBSD: cmd-if-shell.c,v 1.43 2016/04/29 17:12:12 nicm Exp $ */

/*
 * Copyright (c) 2009 Tiago Cunha <me@tiagocunha.org>
 * Copyright (c) 2009 Nicholas Marriott <nicm@openbsd.org>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <sys/types.h>
#include <sys/wait.h>

#include <stdlib.h>
#include <string.h>

#include "tmux.h"

/*
 * Executes a tmux command if a shell command returns true or false.
 */

enum cmd_retval	 cmd_if_shell_exec(struct cmd *, struct cmd_q *);

void	cmd_if_shell_callback(struct job *);
void	cmd_if_shell_done(struct cmd_q *);
void	cmd_if_shell_free(void *);

const struct cmd_entry cmd_if_shell_entry = {
	.name = "if-shell",
	.alias = "if",

	.args = { "bFt:", 2, 3 },
	.usage = "[-bF] " CMD_TARGET_PANE_USAGE " shell-command command "
		 "[command]",

	.tflag = CMD_PANE_CANFAIL,

	.flags = 0,
	.exec = cmd_if_shell_exec
};

struct cmd_if_shell_data {
	char			*cmd_if;
	char			*cmd_else;

	struct cmd_q		*cmdq;
	struct mouse_event	 mouse;

	int			 bflag;
	int			 references;
};

enum cmd_retval
cmd_if_shell_exec(struct cmd *self, struct cmd_q *cmdq)
{
	struct args			*args = self->args;
	struct cmd_if_shell_data	*cdata;
	char				*shellcmd, *cmd, *cause;
	struct cmd_list			*cmdlist;
	struct session			*s = cmdq->state.tflag.s;
	struct winlink			*wl = cmdq->state.tflag.wl;
	struct window_pane		*wp = cmdq->state.tflag.wp;
	struct format_tree		*ft;
	const char			*cwd;

	if (cmdq->client != NULL && cmdq->client->session == NULL)
		cwd = cmdq->client->cwd;
	else if (s != NULL)
		cwd = s->cwd;
	else
		cwd = NULL;

	ft = format_create(cmdq, 0);
	format_defaults(ft, cmdq->state.c, s, wl, wp);
	shellcmd = format_expand(ft, args->argv[0]);
	format_free(ft);

	if (args_has(args, 'F')) {
		cmd = NULL;
		if (*shellcmd != '0' && *shellcmd != '\0')
			cmd = args->argv[1];
		else if (args->argc == 3)
			cmd = args->argv[2];
		free(shellcmd);
		if (cmd == NULL)
			return (CMD_RETURN_NORMAL);
		if (cmd_string_parse(cmd, &cmdlist, NULL, 0, &cause) != 0) {
			if (cause != NULL) {
				cmdq_error(cmdq, "%s", cause);
				free(cause);
			}
			return (CMD_RETURN_ERROR);
		}
		cmdq_run(cmdq, cmdlist, &cmdq->item->mouse);
		cmd_list_free(cmdlist);
		return (CMD_RETURN_NORMAL);
	}

	cdata = xmalloc(sizeof *cdata);

	cdata->cmd_if = xstrdup(args->argv[1]);
	if (args->argc == 3)
		cdata->cmd_else = xstrdup(args->argv[2]);
	else
		cdata->cmd_else = NULL;

	cdata->bflag = args_has(args, 'b');

	cdata->cmdq = cmdq;
	memcpy(&cdata->mouse, &cmdq->item->mouse, sizeof cdata->mouse);
	cmdq->references++;

	cdata->references = 1;
	job_run(shellcmd, s, cwd, cmd_if_shell_callback, cmd_if_shell_free,
	    cdata);
	free(shellcmd);

	if (cdata->bflag)
		return (CMD_RETURN_NORMAL);
	return (CMD_RETURN_WAIT);
}

void
cmd_if_shell_callback(struct job *job)
{
	struct cmd_if_shell_data	*cdata = job->data;
	struct cmd_q			*cmdq = cdata->cmdq, *cmdq1;
	struct cmd_list			*cmdlist;
	char				*cause, *cmd;

	if (cmdq->flags & CMD_Q_DEAD)
		return;

	if (!WIFEXITED(job->status) || WEXITSTATUS(job->status) != 0)
		cmd = cdata->cmd_else;
	else
		cmd = cdata->cmd_if;
	if (cmd == NULL)
		return;

	if (cmd_string_parse(cmd, &cmdlist, NULL, 0, &cause) != 0) {
		if (cause != NULL) {
			cmdq_error(cmdq, "%s", cause);
			free(cause);
		}
		return;
	}

	cmdq1 = cmdq_new(cmdq->client);
	cmdq1->flags |= cmdq->flags & CMD_Q_NOHOOKS;
	cmdq1->emptyfn = cmd_if_shell_done;
	cmdq1->data = cdata;

	cdata->references++;
	cmdq_run(cmdq1, cmdlist, &cdata->mouse);
	cmd_list_free(cmdlist);
}

void
cmd_if_shell_done(struct cmd_q *cmdq1)
{
	struct cmd_if_shell_data	*cdata = cmdq1->data;
	struct cmd_q			*cmdq = cdata->cmdq;

	if (cmdq1->client_exit >= 0)
		cmdq->client_exit = cmdq1->client_exit;
	cmdq_free(cmdq1);

	if (--cdata->references != 0)
		return;

	if (!cmdq_free(cmdq) && !cdata->bflag)
		cmdq_continue(cmdq);

	free(cdata->cmd_else);
	free(cdata->cmd_if);
	free(cdata);
}

void
cmd_if_shell_free(void *data)
{
	struct cmd_if_shell_data	*cdata = data;
	struct cmd_q			*cmdq = cdata->cmdq;

	if (--cdata->references != 0)
		return;

	if (!cmdq_free(cmdq) && !cdata->bflag)
		cmdq_continue(cmdq);

	free(cdata->cmd_else);
	free(cdata->cmd_if);
	free(cdata);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: cmd-if-shell.c,v 1.43 2016/04/29 17:12:12 nicm Exp $ */
2
3			/*
4			* Copyright (c) 2009 Tiago Cunha <me@tiagocunha.org>
5			* Copyright (c) 2009 Nicholas Marriott <nicm@openbsd.org>
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
23			#include <stdlib.h>
24			#include <string.h>
25
26			#include "tmux.h"
27
28			/*
29			* Executes a tmux command if a shell command returns true or false.
30			*/
31
32			enum cmd_retval cmd_if_shell_exec(struct cmd , struct cmd_q );
33
34			void cmd_if_shell_callback(struct job *);
35			void cmd_if_shell_done(struct cmd_q *);
36			void cmd_if_shell_free(void *);
37
38			const struct cmd_entry cmd_if_shell_entry = {
39			.name = "if-shell",
40			.alias = "if",
41
42			.args = { "bFt:", 2, 3 },
43			.usage = "[-bF] " CMD_TARGET_PANE_USAGE " shell-command command "
44			"[command]",
45
46			.tflag = CMD_PANE_CANFAIL,
47
48			.flags = 0,
49			.exec = cmd_if_shell_exec
50			};
51
52			struct cmd_if_shell_data {
53			char *cmd_if;
54			char *cmd_else;
55
56			struct cmd_q *cmdq;
57			struct mouse_event mouse;
58
59			int bflag;
60			int references;
61			};
62
63			enum cmd_retval
64			cmd_if_shell_exec(struct cmd self, struct cmd_q cmdq)
65			{
66			struct args *args = self->args;
67			struct cmd_if_shell_data *cdata;
68			char shellcmd, cmd, *cause;
69			struct cmd_list *cmdlist;
70			struct session *s = cmdq->state.tflag.s;
71			struct winlink *wl = cmdq->state.tflag.wl;
72			struct window_pane *wp = cmdq->state.tflag.wp;
73			struct format_tree *ft;
74			const char *cwd;
75
76			if (cmdq->client != NULL && cmdq->client->session == NULL)
77			cwd = cmdq->client->cwd;
78			else if (s != NULL)
79			cwd = s->cwd;
80			else
81			cwd = NULL;
82
83			ft = format_create(cmdq, 0);
84			format_defaults(ft, cmdq->state.c, s, wl, wp);
85			shellcmd = format_expand(ft, args->argv[0]);
86			format_free(ft);
87
88			if (args_has(args, 'F')) {
89			cmd = NULL;
90			if (shellcmd != '0' && shellcmd != '\0')
91			cmd = args->argv[1];
92			else if (args->argc == 3)
93			cmd = args->argv[2];
94			free(shellcmd);
95			if (cmd == NULL)
96			return (CMD_RETURN_NORMAL);
97			if (cmd_string_parse(cmd, &cmdlist, NULL, 0, &cause) != 0) {
98			if (cause != NULL) {
99			cmdq_error(cmdq, "%s", cause);
100			free(cause);
101			}
102			return (CMD_RETURN_ERROR);
103			}
104			cmdq_run(cmdq, cmdlist, &cmdq->item->mouse);
105			cmd_list_free(cmdlist);
106			return (CMD_RETURN_NORMAL);
107			}
108
109			cdata = xmalloc(sizeof *cdata);
110
111			cdata->cmd_if = xstrdup(args->argv[1]);
112			if (args->argc == 3)
113			cdata->cmd_else = xstrdup(args->argv[2]);
114			else
115			cdata->cmd_else = NULL;
116
117			cdata->bflag = args_has(args, 'b');
118
119			cdata->cmdq = cmdq;
120			memcpy(&cdata->mouse, &cmdq->item->mouse, sizeof cdata->mouse);
121			cmdq->references++;
122
123			cdata->references = 1;
124			job_run(shellcmd, s, cwd, cmd_if_shell_callback, cmd_if_shell_free,
125			cdata);
126			free(shellcmd);
127
128			if (cdata->bflag)
129			return (CMD_RETURN_NORMAL);
130			return (CMD_RETURN_WAIT);
131			}
132
133			void
134			cmd_if_shell_callback(struct job *job)
135			{
136			struct cmd_if_shell_data *cdata = job->data;
137			struct cmd_q cmdq = cdata->cmdq, cmdq1;
138			struct cmd_list *cmdlist;
139			char cause, cmd;
140
141			if (cmdq->flags & CMD_Q_DEAD)
142			return;
143
144			if (!WIFEXITED(job->status) \|\| WEXITSTATUS(job->status) != 0)
145			cmd = cdata->cmd_else;
146			else
147			cmd = cdata->cmd_if;
148			if (cmd == NULL)
149			return;
150
151			if (cmd_string_parse(cmd, &cmdlist, NULL, 0, &cause) != 0) {
152			if (cause != NULL) {
153			cmdq_error(cmdq, "%s", cause);
154			free(cause);
155			}
156			return;
157			}
158
159			cmdq1 = cmdq_new(cmdq->client);
160			cmdq1->flags \|= cmdq->flags & CMD_Q_NOHOOKS;
161			cmdq1->emptyfn = cmd_if_shell_done;
162			cmdq1->data = cdata;
163
164			cdata->references++;
165			cmdq_run(cmdq1, cmdlist, &cdata->mouse);
166			cmd_list_free(cmdlist);
167			}
168
169			void
170			cmd_if_shell_done(struct cmd_q *cmdq1)
171			{
172			struct cmd_if_shell_data *cdata = cmdq1->data;
173			struct cmd_q *cmdq = cdata->cmdq;
174
175			if (cmdq1->client_exit >= 0)
176			cmdq->client_exit = cmdq1->client_exit;
177			cmdq_free(cmdq1);
178
179			if (--cdata->references != 0)
180			return;
181
182			if (!cmdq_free(cmdq) && !cdata->bflag)
183			cmdq_continue(cmdq);
184
185			free(cdata->cmd_else);
186			free(cdata->cmd_if);
187			free(cdata);
188			}
189
190			void
191			cmd_if_shell_free(void *data)
192			{
193			struct cmd_if_shell_data *cdata = data;
194			struct cmd_q *cmdq = cdata->cmdq;
195
196			if (--cdata->references != 0)
197			return;
198
199			if (!cmdq_free(cmdq) && !cdata->bflag)
200			cmdq_continue(cmdq);
201
202			free(cdata->cmd_else);
203			free(cdata->cmd_if);
204			free(cdata);
205			}