+extern void *solv_malloc(size_t);
+extern void *solv_malloc2(size_t, size_t);
+extern void *solv_calloc(size_t, size_t);
+extern void *solv_realloc(void *, size_t);
+extern void *solv_realloc2(void *, size_t, size_t);
+extern void *solv_extend_realloc(void *, size_t, size_t, size_t);
+extern void *solv_free(void *);
+extern char *solv_strdup(const char *);
+extern void solv_oom(size_t, size_t);
+extern unsigned int solv_timems(unsigned int subtract);
+extern void solv_sort(void *base, size_t nmemb, size_t size, int (*compar)(const void *, const void *, void *), void *compard);
+extern char *solv_dupjoin(const char *str1, const char *str2, const char *str3);
+extern char *solv_dupappend(const char *str1, const char *str2, const char *str3);
+extern int solv_hex2bin(const char **strp, unsigned char *buf, int bufl);
+extern char *solv_bin2hex(const unsigned char *buf, int l, char *str);
+extern size_t solv_validutf8(const char *buf);
+extern char *solv_latin1toutf8(const char *buf);
+extern char *solv_replacebadutf8(const char *buf, int replchar);
+
+
+static inline void *solv_extend(void *buf, size_t len, size_t nmemb, size_t size, size_t block)
+{
+ if (nmemb == 1)
+ {
+ if ((len & block) == 0)
+ buf = solv_extend_realloc(buf, len + 1, size, block);
+ }
+ else
+ {
+ if (((len - 1) | block) != ((len + nmemb - 1) | block))
+ buf = solv_extend_realloc(buf, len + nmemb, size, block);
+ }
+ return buf;
+}
+
+/**
+ * extend an array by reallocation and zero's the new section
+ * buf old pointer
+ * len current size
+ * nmbemb number of elements to add
+ * size size of each element
+ * block block size used to allocate the elements
+ */
+static inline void *solv_zextend(void *buf, size_t len, size_t nmemb, size_t size, size_t block)
+{
+ buf = solv_extend(buf, len, nmemb, size, block);
+ memset((char *)buf + len * size, 0, nmemb * size);
+ return buf;
+}
+
+static inline void *solv_extend_resize(void *buf, size_t len, size_t size, size_t block)
+{
+ if (len)
+ buf = solv_extend_realloc(buf, len, size, block);
+ return buf;
+}
+
+static inline void *solv_calloc_block(size_t len, size_t size, size_t block)
+{
+ void *buf;
+ if (!len)
+ return 0;
+ buf = solv_extend_realloc((void *)0, len, size, block);
+ memset(buf, 0, ((len + block) & ~block) * size);
+ return buf;
+}
+
+static inline void *solv_memdup(void *buf, size_t len)
+{
+ void *newbuf;
+ if (!buf)
+ return 0;
+ newbuf = solv_malloc(len);
+ if (len)
+ memcpy(newbuf, buf, len);
+ return newbuf;
+}