// Print help message for the specified command. #include "config.h" // IWYU pragma: keep #include "print_help.h" #include #include #include #include "common.h" #define CMD_LEN 1024 #define HELP_ERR "Could not show help message\n" void print_help(const char *c, int fd) { char cmd[CMD_LEN]; int printed = snprintf(cmd, CMD_LEN, "fish -c '__fish_print_help %s >&%d'", c, fd); if (printed < CMD_LEN && system(cmd) == -1) { write_loop(2, HELP_ERR, std::strlen(HELP_ERR)); } }