Function is_executable

src/cli/cli.c:878–885

Check if a path exists and is executable. * On Windows, stat() doesn't set S_IXUSR — just check existence. */

/* Check if a path exists and is executable.
 * On Windows, stat() doesn't set S_IXUSR — just check existence. */
static bool is_executable(const char *path) {
    struct stat st;
#ifdef _WIN32
    return stat(path, &st) == 0;
#else
    return stat(path, &st) == 0 && (st.st_mode & S_IXUSR);
#endif
}

/* Search for an executable named `name` in the PATH environment variable.
 * Returns the full path in `out` (max out_sz) if found, else empty string. */