2 files changed, 19 insertions, 0 deletions
diff --git a/src/shared/util.c b/src/shared/util.c
index 873c95820a..760013c1fb 100644
--- a/src/shared/util.c
+++ b/src/shared/util.c
@@ -5855,3 +5855,20 @@ char *strrep(const char *s, unsigned n) {
         *p = 0;
         return r;
 }
+
+void* greedy_realloc(void **p, size_t *allocated, size_t need) {
+        size_t a;
+        void *q;
+
+        if (*allocated >= need)
+                return *p;
+
+        a = MAX(64, need * 2);
+        q = realloc(*p, a);
+        if (!q)
+                return NULL;
+
+        *p = q;
+        *allocated = a;
+        return q;
+}
diff --git a/src/shared/util.h b/src/shared/util.h
index 0d05cd6653..d1cdd901a0 100644
--- a/src/shared/util.h
+++ b/src/shared/util.h
@@ -613,3 +613,5 @@ void *unhexmem(const char *p, size_t l);
 
 char *strextend(char **x, ...);
 char *strrep(const char *s, unsigned n);
+
+void* greedy_realloc(void **p, size_t *allocated, size_t need);