Add memdup() helper

diff --git a/libkmod/libkmod-private.h b/libkmod/libkmod-private.h
index c589a22..f2797b4 100644 (file)
--- a/libkmod/libkmod-private.h
+++ b/libkmod/libkmod-private.h
@@ -80,5 +80,6 @@ char *getline_wrapped(FILE *fp, unsigned int *linenum) __attribute__((nonnull(1)
 char *underscores(struct kmod_ctx *ctx, char *s) __attribute__((nonnull(1, 2)));
 #define streq(a, b) (strcmp((a), (b)) == 0)
 bool startswith(const char *s, const char *prefix) __attribute__((nonnull(1, 2)));
+void *memdup(const void *p, size_t n) __attribute__((nonnull(1));
 
 #endif

diff --git a/libkmod/libkmod-util.c b/libkmod/libkmod-util.c
index 556dfcd..b6e3cfc 100644 (file)
--- a/libkmod/libkmod-util.c
+++ b/libkmod/libkmod-util.c
@@ -133,3 +133,13 @@ bool startswith(const char *s, const char *prefix) {
 
         return memcmp(s, prefix, pl) == 0;
 }
+
+inline void *memdup(const void *p, size_t n)
+{
+       void *r = malloc(n);
+
+       if (r == NULL)
+               return NULL;
+
+       return memcpy(r, p, n);
+}