Improve portability

Signed-off-by: Mattias Andrée <maandree@kth.se>

1 files changed, 28 insertions, 0 deletions

diff --git a/libar2.h b/libar2.h
index 835a02f..862723f 100644
--- a/libar2.h
+++ b/libar2.h
@@ -7,6 +7,22 @@
 
 /* for internal use { */
 
+#ifndef LIBAR2_PUBLIC__
+# if defined(_MSC_VER)
+#  define LIBAR2_PUBLIC__ __declspec(dllexport)
+# else
+#  define LIBAR2_PUBLIC__
+# endif
+#endif
+
+#ifndef LIBAR2_PUBLIC_VARIABLE__
+# if defined(_MSC_VER)
+#  define LIBAR2_PUBLIC_VARIABLE__ __declspec(dllexport)
+# else
+#  define LIBAR2_PUBLIC_VARIABLE__
+# endif
+#endif
+
 #if defined(UINT_LEAST32_C)
 # define LIBAR2_UINT_LEAST32_C__(V) UINT_LEAST32_C(V)
 #elif defined(UINT32_C)
@@ -446,6 +462,7 @@ extern enum libar2_argon2_version libar2_latest_argon2_version;
  * @return          String representing the type, `NULL` (with `errno`
  *                  set to EINVAL) if either argument is invalid
  */
+LIBAR2_PUBLIC__
 const char *libar2_type_to_string(enum libar2_argon2_type type, enum libar2_casing casing);
 
 /**
@@ -455,6 +472,7 @@ const char *libar2_type_to_string(enum libar2_argon2_type type, enum libar2_casi
  * @param   typep  Output parameter for the primitive type
  * @return         0 on success, -1 (with `errno` set to EINVAL) if `str` is invalid
  */
+LIBAR2_PUBLIC__
 int libar2_string_to_type(const char *str, enum libar2_argon2_type *typep);
 
 /**
@@ -465,6 +483,7 @@ int libar2_string_to_type(const char *str, enum libar2_argon2_type *typep);
  * @return           String representing the version, `NULL` (with
  *                   `errno` set to EINVAL) if `version` is invalid
  */
+LIBAR2_PUBLIC__
 const char *libar2_version_to_string(enum libar2_argon2_version version);
 
 /**
@@ -475,6 +494,7 @@ const char *libar2_version_to_string(enum libar2_argon2_version version);
  * @return           String representing the version, `NULL` (with
  *                   `errno` set to EINVAL) if `version` is invalid
  */
+LIBAR2_PUBLIC__
 const char *libar2_version_to_string_proper(enum libar2_argon2_version version);
 
 /**
@@ -484,6 +504,7 @@ const char *libar2_version_to_string_proper(enum libar2_argon2_version version);
  * @param   versionp  Output parameter for the version number value
  * @return            0 on success, -1 (with `errno` set to EINVAL) if `str` is invalid
  */
+LIBAR2_PUBLIC__
 int libar2_string_to_version(const char *str, enum libar2_argon2_version *versionp);
 
 /**
@@ -501,6 +522,7 @@ int libar2_string_to_version(const char *str, enum libar2_argon2_version *versio
  * @return          The number of bytes required for `buf`,
  *                  including the NUL byte added to the end
  */
+LIBAR2_PUBLIC__
 size_t libar2_encode_params(char *buf, const struct libar2_argon2_parameters *params);
 
 /**
@@ -515,6 +537,7 @@ size_t libar2_encode_params(char *buf, const struct libar2_argon2_parameters *pa
  * @return        The number of bytes required for `buf`,
  *                including the NUL byte added to the end
  */
+LIBAR2_PUBLIC__
 size_t libar2_encode_base64(char *buf, const void *data, size_t len);
 
 /**
@@ -550,6 +573,7 @@ size_t libar2_encode_base64(char *buf, const void *data, size_t len);
  *                  a hash, and not just parameters, `&str[return]` will
  *                  point to the hash
  */
+LIBAR2_PUBLIC__
 size_t libar2_decode_params(const char *str, struct libar2_argon2_parameters *params, char **bufp, struct libar2_context *ctx);
 
 /**
@@ -560,6 +584,7 @@ size_t libar2_decode_params(const char *str, struct libar2_argon2_parameters *pa
  * @param   lenp  Output parameter for the length of the decoded data
  * @return        The number of bytes read
  */
+LIBAR2_PUBLIC__
 size_t libar2_decode_base64(const char *str, void *data, size_t *lenp);
 
 /**
@@ -569,6 +594,7 @@ size_t libar2_decode_base64(const char *str, void *data, size_t *lenp);
  * @param   errmsgp  Output parameter for the error message, or `null`
  * @return           The first detected error, or LIBAR2_OK (0) if none
  */
+LIBAR2_PUBLIC__
 enum libar2_parameter_error libar2_validate_params(const struct libar2_argon2_parameters *params, const char **errmsgp);
 
 /**
@@ -577,6 +603,7 @@ enum libar2_parameter_error libar2_validate_params(const struct libar2_argon2_pa
  * @param  mem   The memory to erase
  * @param  size  The number of bytes to erase
  */
+LIBAR2_PUBLIC__
 void libar2_erase(volatile void *mem, size_t size);
 
 /**
@@ -613,6 +640,7 @@ void libar2_erase(volatile void *mem, size_t size);
  * @param   ctx     Library settings
  * @return          0 on success, -1 on failure
  */
+LIBAR2_PUBLIC__
 int libar2_hash(void *hash, void *msg, size_t msglen, struct libar2_argon2_parameters *params, struct libar2_context *ctx);
 
 #endif