/* basename.c -- return the last element in a path */ #if HAVE_CONFIG_H# include <config.h>#endif #include <backupfile.h> #ifndef FILESYSTEM_PREFIX_LEN#define FILESYSTEM_PREFIX_LEN(f) 0#endif #ifndef ISSLASH#define ISSLASH(c) ((c) == '/')#endif /* In general, we can't use the builtin `basename' function if available,   since it has different meanings in different environments.   In some environments the builtin `basename' modifies its argument.  */ char *base_name (name)     char const *name;{  char const *base = name += FILESYSTEM_PREFIX_LEN (name);   for (; *name; name++)    if (ISSLASH (*name))      base = name + 1;   return (char *) base;}