/* Miscellaneous utilities.
- Copyright (C) 2019 Free Software Foundation, Inc.
+ Copyright (C) 2019-2020 Free Software Foundation, Inc.
This file is part of libctf.
lp->l_prev = p->l_prev;
}
+/* Return 1 if the list is empty. */
+
+int
+ctf_list_empty_p (ctf_list_t *lp)
+{
+ return (lp->l_next == NULL && lp->l_prev == NULL);
+}
+
/* Convert a 32-bit ELF symbol into Elf64 and return a pointer to it. */
Elf64_Sym *
return dst;
}
-/* Same as strdup(3C), but use ctf_alloc() to do the memory allocation. */
-
-_libctf_malloc_ char *
-ctf_strdup (const char *s1)
-{
- char *s2 = ctf_alloc (strlen (s1) + 1);
-
- if (s2 != NULL)
- (void) strcpy (s2, s1);
-
- return s2;
-}
-
-/* A string appender working on dynamic strings. */
+/* A string appender working on dynamic strings. Returns NULL on OOM. */
char *
ctf_str_append (char *s, const char *append)
return s;
}
+/* A version of ctf_str_append that returns the old string on OOM. */
+
+char *
+ctf_str_append_noerr (char *s, const char *append)
+{
+ char *new_s;
+
+ new_s = ctf_str_append (s, append);
+ if (!new_s)
+ return s;
+ return new_s;
+}
+
/* A realloc() that fails noisily if called with any ctf_str_num_users. */
void *
ctf_realloc (ctf_file_t *fp, void *ptr, size_t size)