4 char *revstr(char *str);
5 char *strupper(char *str);
6 char *strlower(char *str);
9 char *mkstr (const char *format, ... );
10 char *strconcat (const char *str, ...);
12 int safe_strcmp(const char *s1, const char *s2);
13 int safe_strcoll(const char *s1, const char *s2);
17 char *getaline(FILE *f);
26 int snprintf (char *str, size_t count, const char *fmt, ...);
28 #ifndef HAVE_VSNPRINTF
29 int vsnprintf (char *str, size_t count, const char *fmt, va_list arg);