#endif
#include <openssl/ssl.h>
#include <openssl/err.h>
-#ifdef NO_HMAC_CTX_CLEANUP
-#define HMAC_CTX_cleanup HMAC_cleanup
-#endif
#endif
/* On most systems <netdb.h> would have given us this, but
#define _PATH_DEFPATH "/usr/local/bin:/usr/bin:/bin"
#endif
-#ifndef STRIP_EXTENSION
-#define STRIP_EXTENSION ""
-#endif
-
#ifndef has_dos_drive_prefix
static inline int git_has_dos_drive_prefix(const char *path)
{
#ifdef __GLIBC_PREREQ
#if __GLIBC_PREREQ(2, 1)
#define HAVE_STRCHRNUL
-#define HAVE_MEMPCPY
#endif
#endif
}
#endif
-#ifndef HAVE_MEMPCPY
-#define mempcpy gitmempcpy
-static inline void *gitmempcpy(void *dest, const void *src, size_t n)
-{
- return (char *)memcpy(dest, src, n) + n;
-}
-#endif
-
#ifdef NO_INET_PTON
int inet_pton(int af, const char *src, void *dst);
#endif
(uintmax_t)a, (uintmax_t)b);
return a + b;
}
-#define st_add3(a,b,c) st_add((a),st_add((b),(c)))
-#define st_add4(a,b,c,d) st_add((a),st_add3((b),(c),(d)))
+#define st_add3(a,b,c) st_add(st_add((a),(b)),(c))
+#define st_add4(a,b,c,d) st_add(st_add3((a),(b),(c)),(d))
static inline size_t st_mult(size_t a, size_t b)
{
#define ALLOC_ARRAY(x, alloc) (x) = xmalloc(st_mult(sizeof(*(x)), (alloc)))
#define REALLOC_ARRAY(x, alloc) (x) = xrealloc((x), st_mult(sizeof(*(x)), (alloc)))
+/*
+ * These functions help you allocate structs with flex arrays, and copy
+ * the data directly into the array. For example, if you had:
+ *
+ * struct foo {
+ * int bar;
+ * char name[FLEX_ARRAY];
+ * };
+ *
+ * you can do:
+ *
+ * struct foo *f;
+ * FLEX_ALLOC_MEM(f, name, src, len);
+ *
+ * to allocate a "foo" with the contents of "src" in the "name" field.
+ * The resulting struct is automatically zero'd, and the flex-array field
+ * is NUL-terminated (whether the incoming src buffer was or not).
+ *
+ * The FLEXPTR_* variants operate on structs that don't use flex-arrays,
+ * but do want to store a pointer to some extra data in the same allocated
+ * block. For example, if you have:
+ *
+ * struct foo {
+ * char *name;
+ * int bar;
+ * };
+ *
+ * you can do:
+ *
+ * struct foo *f;
+ * FLEX_ALLOC_STR(f, name, src);
+ *
+ * and "name" will point to a block of memory after the struct, which will be
+ * freed along with the struct (but the pointer can be repointed anywhere).
+ *
+ * The *_STR variants accept a string parameter rather than a ptr/len
+ * combination.
+ *
+ * Note that these macros will evaluate the first parameter multiple
+ * times, and it must be assignable as an lvalue.
+ */
+#define FLEX_ALLOC_MEM(x, flexname, buf, len) do { \
+ (x) = NULL; /* silence -Wuninitialized for offset calculation */ \
+ (x) = xalloc_flex(sizeof(*(x)), (char *)(&((x)->flexname)) - (char *)(x), (buf), (len)); \
+} while (0)
+#define FLEXPTR_ALLOC_MEM(x, ptrname, buf, len) do { \
+ (x) = xalloc_flex(sizeof(*(x)), sizeof(*(x)), (buf), (len)); \
+ (x)->ptrname = (void *)((x)+1); \
+} while(0)
+#define FLEX_ALLOC_STR(x, flexname, str) \
+ FLEX_ALLOC_MEM((x), flexname, (str), strlen(str))
+#define FLEXPTR_ALLOC_STR(x, ptrname, str) \
+ FLEXPTR_ALLOC_MEM((x), ptrname, (str), strlen(str))
+
+static inline void *xalloc_flex(size_t base_len, size_t offset,
+ const void *src, size_t src_len)
+{
+ unsigned char *ret = xcalloc(1, st_add3(base_len, src_len, 1));
+ memcpy(ret + offset, src, src_len);
+ return ret;
+}
+
static inline char *xstrdup_or_null(const char *str)
{
return str ? xstrdup(str) : NULL;