Annotate the xalloc functions.

Most important is the annotation of xasprintf() with the format attribute,
which allows the compiler to give warnings about the format string and
arguments.

diff --git a/src/xalloc.h b/src/xalloc.h
index 397f7b0..6629b60 100644 (file)
--- a/src/xalloc.h
+++ b/src/xalloc.h
@@ -20,6 +20,7 @@
 #ifndef __TINC_XALLOC_H__
 #define __TINC_XALLOC_H__
 
+static inline void *xmalloc(size_t n) __attribute__ ((__malloc__));
 static inline void *xmalloc(size_t n) {
        void *p = malloc(n);
        if(!p)
@@ -27,6 +28,7 @@ static inline void *xmalloc(size_t n) {
        return p;
 }
 
+static inline void *xzalloc(size_t n) __attribute__ ((__malloc__));
 static inline void *xzalloc(size_t n) {
        void *p = calloc(1, n);
        if(!p)
@@ -41,6 +43,7 @@ static inline void *xrealloc(void *p, size_t n) {
        return p;
 }
 
+static inline char *xstrdup(const char *s) __attribute__ ((__malloc__));
 static inline char *xstrdup(const char *s) {
        char *p = strdup(s);
        if(!p)
@@ -55,6 +58,7 @@ static inline int xvasprintf(char **strp, const char *fmt, va_list ap) {
        return result;
 }
 
+static inline int xasprintf(char **strp, const char *fmt, ...) __attribute__ ((__format__(printf, 2, 3)));
 static inline int xasprintf(char **strp, const char *fmt, ...) {
        va_list ap;
        va_start(ap, fmt);