#include "spawn.h" #include #include #include #include #include #define MAX_ARGS_COUNT 20 #define ARGS_SIZE (MAX_ARGS_COUNT + 1) #define MON_ARG_SIZE 2 struct Command { const char *name; size_t monitor_arg_index; const char *args[ARGS_SIZE]; }; static struct Command commands[] = { { .name = "menu", .monitor_arg_index = 6, .args = { "rofi", "-modi", "drun", "-show", "drun", "-monitor", "-1", "-show-icons", NULL, }, }, { .name = "term", .monitor_arg_index = 0, .args = { "ptterm", NULL }, }, { .name = "firefox", .monitor_arg_index = 0, .args = { "firefox", NULL }, }, }; void spawn_command( const char *const name, void (*const callback)(), const int monitor ) { if (name == NULL || monitor < 0 || monitor > 9) return; for ( size_t command_index = 0; command_index < sizeof(commands) / sizeof(struct Command); ++command_index ) { const struct Command *const command = &commands[command_index]; if (strcmp(name, command->name) != 0) continue; // We discard const modifier // because we will only change newly allocated version. char **args = (char**)command->args; char monitor_buffer[2] = { '0' + monitor, '\0' }; if (command->monitor_arg_index != 0) { args = malloc(sizeof(char*) * ARGS_SIZE); if (args == NULL) return; for (size_t arg_index = 0;; ++arg_index) { // We discard const modifier // because we will only change newly allocated version. args[arg_index] = (char*)command->args[arg_index]; if (args[arg_index] == NULL) break; } args[command->monitor_arg_index] = monitor_buffer; } if (fork() == 0) { callback(); setsid(); execvp(args[0], args); fprintf(stderr, "polytreewm: execvp %s", args[0]); perror(" failed"); exit(EXIT_SUCCESS); } if (command->monitor_arg_index != 0) free(args); return; } }