diff options
| -rw-r--r-- | sway/commands.c | 2 | ||||
| -rw-r--r-- | sway/commands/exec.c | 16 | ||||
| -rw-r--r-- | sway/commands/exec_always.c | 85 | ||||
| -rw-r--r-- | sway/meson.build | 2 |
4 files changed, 105 insertions, 0 deletions
diff --git a/sway/commands.c b/sway/commands.c index 94a45253..5fdcdbb6 100644 --- a/sway/commands.c +++ b/sway/commands.c @@ -90,6 +90,8 @@ struct cmd_results *add_color(const char *name, char *buffer, const char *color) /* Keep alphabetized */ static struct cmd_handler handlers[] = { + { "exec", cmd_exec }, + { "exec_always", cmd_exec_always }, { "exit", cmd_exit }, }; diff --git a/sway/commands/exec.c b/sway/commands/exec.c new file mode 100644 index 00000000..dd71500a --- /dev/null +++ b/sway/commands/exec.c @@ -0,0 +1,16 @@ +#include <string.h> +#include "sway/commands.h" +#include "log.h" +#include "stringop.h" + +struct cmd_results *cmd_exec(int argc, char **argv) { + // TODO: config + /*if (!config->active) return cmd_results_new(CMD_DEFER, "exec", NULL); + if (config->reloading) { + char *args = join_args(argv, argc); + sway_log(L_DEBUG, "Ignoring 'exec %s' due to reload", args); + free(args); + return cmd_results_new(CMD_SUCCESS, NULL, NULL); + }*/ + return cmd_exec_always(argc, argv); +} diff --git a/sway/commands/exec_always.c b/sway/commands/exec_always.c new file mode 100644 index 00000000..0a252e7b --- /dev/null +++ b/sway/commands/exec_always.c @@ -0,0 +1,85 @@ +#define _XOPEN_SOURCE 500 +#include <stdlib.h> +#include <stdint.h> +#include <string.h> +#include <sys/wait.h> +#include <unistd.h> +#include "sway/commands.h" +#include "sway/workspace.h" +#include "sway/container.h" +#include "log.h" +#include "stringop.h" + +struct cmd_results *cmd_exec_always(int argc, char **argv) { + struct cmd_results *error = NULL; + // TODO: config + //if (!config->active) return cmd_results_new(CMD_DEFER, NULL, NULL); + if ((error = checkarg(argc, "exec_always", EXPECTED_MORE_THAN, 0))) { + return error; + } + + char *tmp = NULL; + if (strcmp((char*)*argv, "--no-startup-id") == 0) { + sway_log(L_INFO, "exec switch '--no-startup-id' not supported, ignored."); + if ((error = checkarg(argc - 1, "exec_always", EXPECTED_MORE_THAN, 0))) { + return error; + } + + tmp = join_args(argv + 1, argc - 1); + } else { + tmp = join_args(argv, argc); + } + + // Put argument into cmd array + char cmd[4096]; + strncpy(cmd, tmp, sizeof(cmd)); + cmd[sizeof(cmd) - 1] = 0; + free(tmp); + sway_log(L_DEBUG, "Executing %s", cmd); + + int fd[2]; + if (pipe(fd) != 0) { + sway_log(L_ERROR, "Unable to create pipe for fork"); + } + + pid_t pid; + pid_t *child = malloc(sizeof(pid_t)); // malloc'd so that Linux can avoid copying the process space + if (!child) { + return cmd_results_new(CMD_FAILURE, "exec_always", "Unable to allocate child pid"); + } + // Fork process + if ((pid = fork()) == 0) { + // Fork child process again + setsid(); + if ((*child = fork()) == 0) { + execl("/bin/sh", "/bin/sh", "-c", cmd, (void *)NULL); + // Not reached + } + close(fd[0]); + ssize_t s = 0; + while ((size_t)s < sizeof(pid_t)) { + s += write(fd[1], ((uint8_t *)child) + s, sizeof(pid_t) - s); + } + close(fd[1]); + _exit(0); // Close child process + } else if (pid < 0) { + free(child); + return cmd_results_new(CMD_FAILURE, "exec_always", "fork() failed"); + } + close(fd[1]); // close write + ssize_t s = 0; + while ((size_t)s < sizeof(pid_t)) { + s += read(fd[0], ((uint8_t *)child) + s, sizeof(pid_t) - s); + } + close(fd[0]); + // cleanup child process + wait(0); + if (*child > 0) { + sway_log(L_DEBUG, "Child process created with pid %d", *child); + // TODO: add PID to active workspace + } else { + free(child); + } + + return cmd_results_new(CMD_SUCCESS, NULL, NULL); +} diff --git a/sway/meson.build b/sway/meson.build index 9f92f5d1..b224f15f 100644 --- a/sway/meson.build +++ b/sway/meson.build @@ -3,6 +3,8 @@ sway_sources = files( 'server.c', 'commands.c', 'commands/exit.c', + 'commands/exec.c', + 'commands/exec_always.c', 'ipc-json.c', 'ipc-server.c', 'desktop/output.c', |