1 /* Id */ 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 * Runs a command without a window. 30 */ 31 32 enum cmd_retval cmd_run_shell_exec(struct cmd *, struct cmd_q *); 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 *); 37 38 const struct cmd_entry cmd_run_shell_entry = { 39 "run-shell", "run", 40 "bt:", 1, 1, 41 "[-b] " CMD_TARGET_PANE_USAGE " shell-command", 42 0, 43 NULL, 44 cmd_run_shell_exec 45 }; 46 47 struct cmd_run_shell_data { 48 char *cmd; 49 struct cmd_q *cmdq; 50 int bflag; 51 int wp_id; 52 }; 53 54 void 55 cmd_run_shell_print(struct job *job, const char *msg) 56 { 57 struct cmd_run_shell_data *cdata = job->data; 58 struct window_pane *wp = NULL; 59 60 if (cdata->wp_id != -1) 61 wp = window_pane_find_by_id(cdata->wp_id); 62 if (wp == NULL) { 63 cmdq_print(cdata->cmdq, "%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 73 enum cmd_retval 74 cmd_run_shell_exec(struct cmd *self, struct cmd_q *cmdq) 75 { 76 struct args *args = self->args; 77 struct cmd_run_shell_data *cdata; 78 char *shellcmd; 79 struct client *c; 80 struct session *s = NULL; 81 struct winlink *wl = NULL; 82 struct window_pane *wp = NULL; 83 struct format_tree *ft; 84 85 if (args_has(args, 't')) 86 wl = cmd_find_pane(cmdq, args_get(args, 't'), &s, &wp); 87 else { 88 c = cmd_find_client(cmdq, NULL, 1); 89 if (c != NULL && c->session != NULL) { 90 s = c->session; 91 wl = s->curw; 92 wp = wl->window->active; 93 } 94 } 95 96 ft = format_create(); 97 if (s != NULL) 98 format_session(ft, s); 99 if (s != NULL && wl != NULL) 100 format_winlink(ft, s, wl); 101 if (wp != NULL) 102 format_window_pane(ft, wp); 103 shellcmd = format_expand(ft, args->argv[0]); 104 format_free(ft); 105 106 cdata = xmalloc(sizeof *cdata); 107 cdata->cmd = shellcmd; 108 cdata->bflag = args_has(args, 'b'); 109 cdata->wp_id = wp != NULL ? (int) wp->id : -1; 110 111 cdata->cmdq = cmdq; 112 cmdq->references++; 113 114 job_run(shellcmd, s, cmd_run_shell_callback, cmd_run_shell_free, cdata); 115 116 if (cdata->bflag) 117 return (CMD_RETURN_NORMAL); 118 return (CMD_RETURN_WAIT); 119 } 120 121 void 122 cmd_run_shell_callback(struct job *job) 123 { 124 struct cmd_run_shell_data *cdata = job->data; 125 struct cmd_q *cmdq = cdata->cmdq; 126 char *cmd, *msg, *line; 127 size_t size; 128 int retcode; 129 u_int lines; 130 131 if (cmdq->dead) 132 return; 133 cmd = cdata->cmd; 134 135 lines = 0; 136 do { 137 if ((line = evbuffer_readline(job->event->input)) != NULL) { 138 cmd_run_shell_print(job, line); 139 free(line); 140 lines++; 141 } 142 } while (line != NULL); 143 144 size = EVBUFFER_LENGTH(job->event->input); 145 if (size != 0) { 146 line = xmalloc(size + 1); 147 memcpy(line, EVBUFFER_DATA(job->event->input), size); 148 line[size] = '\0'; 149 150 cmd_run_shell_print(job, line); 151 lines++; 152 153 free(line); 154 } 155 156 msg = NULL; 157 if (WIFEXITED(job->status)) { 158 if ((retcode = WEXITSTATUS(job->status)) != 0) 159 xasprintf(&msg, "'%s' returned %d", cmd, retcode); 160 } else if (WIFSIGNALED(job->status)) { 161 retcode = WTERMSIG(job->status); 162 xasprintf(&msg, "'%s' terminated by signal %d", cmd, retcode); 163 } 164 if (msg != NULL) { 165 if (lines == 0) 166 cmdq_info(cmdq, "%s", msg); 167 else 168 cmd_run_shell_print(job, msg); 169 free(msg); 170 } 171 } 172 173 void 174 cmd_run_shell_free(void *data) 175 { 176 struct cmd_run_shell_data *cdata = data; 177 struct cmd_q *cmdq = cdata->cmdq; 178 179 if (!cmdq_free(cmdq) && !cdata->bflag) 180 cmdq_continue(cmdq); 181 182 free(cdata->cmd); 183 free(cdata); 184 } 185