int which_main(int argc, char **argv) { int status = EXIT_SUCCESS; char *p; if (argc <= 1 || argv[1][0] == '-') { bb_show_usage(); } /* We shouldn't do this. Ever. Not our business. if (!getenv("PATH")) { putenv((char*)bb_PATH_root_path); } */ while (--argc > 0) { argv++; if (strchr(*argv, '/')) { if (execable_file(*argv)) { puts(*argv); continue; } } else { p = find_execable(*argv); if (p) { puts(p); free(p); continue; } } status = EXIT_FAILURE; } fflush_stdout_and_exit(status); }
int which_main(int argc, char **argv) { int status = EXIT_SUCCESS; char *p; if (argc <= 1 || argv[1][0] == '-') { bb_show_usage(); } if (!getenv("PATH")) { setenv("PATH", "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin", 1); } while (--argc > 0) { argv++; if (strchr(*argv, '/')) { if (execable_file(*argv)) { puts(*argv); continue; } } else { p = find_execable(*argv); if (p) { puts(p); free(p); continue; } } status = EXIT_FAILURE; } fflush_stdout_and_exit(status); }
/* search $PATH for an executable file; * return 1 if found; * return 0 otherwise; */ int exists_execable(const char *filename) { char *ret = find_execable(filename); if (ret) { free(ret); return 1; } return 0; }
/* search $PATH for an executable file; * return 1 if found; * return 0 otherwise; */ int FAST_FUNC exists_execable(const char *filename) { char *path = xstrdup(getenv("PATH")); char *tmp = path; char *ret = find_execable(filename, &tmp); free(path); if (ret) { free(ret); return 1; } return 0; }