-/* dso.h */
+/* dso.h -*- mode:C; c-file-style: "eay" -*- */
/* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL
* project 2000.
*/
*/
#define DSO_FLAG_UPCASE_SYMBOL 0x10
+/* This flag loads the library with public symbols.
+ * Meaning: The exported symbols of this library are public
+ * to all libraries loaded after this library.
+ * At the moment only implemented in unix.
+ */
+#define DSO_FLAG_GLOBAL_SYMBOLS 0x20
+
typedef void (*DSO_FUNC_TYPE)(void);
* condition) or a newly allocated string containing the transformed form that
* the caller will need to free with OPENSSL_free() when done. */
typedef char* (*DSO_NAME_CONVERTER_FUNC)(DSO *, const char *);
+/* The function prototype used for method functions (or caller-provided
+ * callbacks) that merge two file specifications. They are passed a
+ * DSO structure pointer (or NULL if they are to be used independantly of
+ * a DSO object) and two file specifications to merge. They should
+ * either return NULL (if there is an error condition) or a newly allocated
+ * string containing the result of merging that the caller will need
+ * to free with OPENSSL_free() when done.
+ * Here, merging means that bits and pieces are taken from each of the
+ * file specifications and added together in whatever fashion that is
+ * sensible for the DSO method in question. The only rule that really
+ * applies is that if the two specification contain pieces of the same
+ * type, the copy from the string string takes priority. One could see
+ * it as the first specification is the one given by the user and the
+ * second being a bunch of defaults to add on if they're missing in the
+ * first. */
+typedef char* (*DSO_MERGER_FUNC)(DSO *, const char *, const char *);
typedef struct dso_meth_st
{
/* The default DSO_METHOD-specific function for converting filenames to
* a canonical native form. */
DSO_NAME_CONVERTER_FUNC dso_name_converter;
+ /* The default DSO_METHOD-specific function for converting filenames to
+ * a canonical native form. */
+ DSO_MERGER_FUNC dso_merger;
/* [De]Initialisation handlers. */
int (*init)(DSO *dso);
* don't touch meth_data! */
CRYPTO_EX_DATA ex_data;
/* If this callback function pointer is set to non-NULL, then it will
- * be used on DSO_load() in place of meth->dso_name_converter. NB: This
+ * be used in DSO_load() in place of meth->dso_name_converter. NB: This
* should normally set using DSO_set_name_converter(). */
DSO_NAME_CONVERTER_FUNC name_converter;
+ /* If this callback function pointer is set to non-NULL, then it will
+ * be used in DSO_load() in place of meth->dso_merger. NB: This
+ * should normally set using DSO_set_merger(). */
+ DSO_MERGER_FUNC merger;
/* This is populated with (a copy of) the platform-independant
* filename used for this DSO. */
char *filename;
* caller-created DSO_METHODs can do the same thing. A non-NULL return value
* will need to be OPENSSL_free()'d. */
char *DSO_convert_filename(DSO *dso, const char *filename);
+/* This function will invoke the DSO's merger callback to merge two file
+ * specifications, or if the callback isn't set it will instead use the
+ * DSO_METHOD's merger. A non-NULL return value will need to be
+ * OPENSSL_free()'d. */
+char *DSO_merge(DSO *dso, const char *filespec1, const char *filespec2);
/* If the DSO is currently loaded, this returns the filename that it was loaded
* under, otherwise it returns NULL. So it is also useful as a test as to
* whether the DSO is currently loaded. NB: This will not necessarily return
* for the first and third parameters. Use DSO_up and DSO_free for
* subsequent reference count handling. Any flags passed in will be set
* in the constructed DSO after its init() function but before the
- * load operation. This will be done with;
- * DSO_ctrl(dso, DSO_CTRL_SET_FLAGS, flags, NULL); */
+ * load operation. If 'dso' is non-NULL, 'flags' is ignored. */
DSO *DSO_load(DSO *dso, const char *filename, DSO_METHOD *meth, int flags);
/* This function binds to a variable inside a shared library. */
/* If VMS is defined, use shared images. If not, return NULL. */
DSO_METHOD *DSO_METHOD_vms(void);
-void ERR_load_DSO_strings(void);
-
/* BEGIN ERROR CODES */
/* The following lines are auto generated by the script mkerr.pl. Any changes
* made after this point may be overwritten when the script is next run.
#define DSO_F_DLFCN_BIND_FUNC 100
#define DSO_F_DLFCN_BIND_VAR 101
#define DSO_F_DLFCN_LOAD 102
+#define DSO_F_DLFCN_MERGER 130
#define DSO_F_DLFCN_NAME_CONVERTER 123
#define DSO_F_DLFCN_UNLOAD 103
#define DSO_F_DL_BIND_FUNC 104
#define DSO_F_DL_BIND_VAR 105
#define DSO_F_DL_LOAD 106
+#define DSO_F_DL_MERGER 131
#define DSO_F_DL_NAME_CONVERTER 124
#define DSO_F_DL_UNLOAD 107
#define DSO_F_DSO_BIND_FUNC 108
#define DSO_F_DSO_GET_FILENAME 127
#define DSO_F_DSO_GET_LOADED_FILENAME 128
#define DSO_F_DSO_LOAD 112
+#define DSO_F_DSO_MERGE 132
#define DSO_F_DSO_NEW_METHOD 113
#define DSO_F_DSO_SET_FILENAME 129
#define DSO_F_DSO_SET_NAME_CONVERTER 122
#define DSO_F_DSO_UP_REF 114
-#define DSO_F_VMS_BIND_VAR 115
+#define DSO_F_VMS_BIND_SYM 115
#define DSO_F_VMS_LOAD 116
+#define DSO_F_VMS_MERGER 133
#define DSO_F_VMS_UNLOAD 117
#define DSO_F_WIN32_BIND_FUNC 118
#define DSO_F_WIN32_BIND_VAR 119
+#define DSO_F_WIN32_JOINER 135
#define DSO_F_WIN32_LOAD 120
+#define DSO_F_WIN32_MERGER 134
#define DSO_F_WIN32_NAME_CONVERTER 125
+#define DSO_F_WIN32_SPLITTER 136
#define DSO_F_WIN32_UNLOAD 121
/* Reason codes. */
#define DSO_R_CTRL_FAILED 100
#define DSO_R_DSO_ALREADY_LOADED 110
+#define DSO_R_EMPTY_FILE_STRUCTURE 113
+#define DSO_R_FAILURE 114
#define DSO_R_FILENAME_TOO_BIG 101
#define DSO_R_FINISH_FAILED 102
+#define DSO_R_INCORRECT_FILE_SYNTAX 115
#define DSO_R_LOAD_FAILED 103
#define DSO_R_NAME_TRANSLATION_FAILED 109
#define DSO_R_NO_FILENAME 111
+#define DSO_R_NO_FILE_SPECIFICATION 116
#define DSO_R_NULL_HANDLE 104
#define DSO_R_SET_FILENAME_FAILED 112
#define DSO_R_STACK_ERROR 105
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