diff options
Diffstat (limited to 'crypto/dso/dso.h')
| -rw-r--r-- | crypto/dso/dso.h | 54 |
1 files changed, 41 insertions, 13 deletions
diff --git a/crypto/dso/dso.h b/crypto/dso/dso.h index 91a44805e3..281af47c26 100644 --- a/crypto/dso/dso.h +++ b/crypto/dso/dso.h @@ -65,6 +65,20 @@ extern "C" { #endif +/* These values are used as commands to DSO_ctrl() */ +#define DSO_CTRL_GET_FLAGS 1 +#define DSO_CTRL_SET_FLAGS 2 +#define DSO_CTRL_OR_FLAGS 3 + +/* These flags control the translation of file-names from canonical to + * native. Eg. in the CryptoSwift support, the "dl" and "dlfcn" + * methods will translate "swift" -> "libswift.so" whereas the "win32" + * method will translate "swift" -> "swift.dll". NB: Until I can figure + * out how to be more "conventional" with this, the methods will only + * honour this flag if it looks like it was passed a file without any + * path and if the filename is small enough. + */ +#define DSO_FLAG_NAME_TRANSLATION 0x01 typedef struct dso_st DSO; @@ -83,7 +97,11 @@ typedef struct dso_meth_st /* Unbinds a symbol */ int (*dso_unbind)(DSO *dso, char *symname, void *symptr); #endif + /* The generic (yuck) "ctrl()" function. NB: Negative return + * values (rather than zero) indicate errors. */ + long (*dso_ctrl)(DSO *dso, int cmd, long larg, void *parg); + /* [De]Initialisation handlers. */ int (*init)(DSO *dso); int (*finish)(DSO *dso); } DSO_METHOD; @@ -113,6 +131,7 @@ DSO * DSO_new_method(DSO_METHOD *method); int DSO_free(DSO *dso); int DSO_flags(DSO *dso); int DSO_up(DSO *dso); +long DSO_ctrl(DSO *dso, int cmd, long larg, void *parg); void DSO_set_default_method(DSO_METHOD *meth); DSO_METHOD *DSO_get_default_method(void); @@ -121,8 +140,11 @@ DSO_METHOD *DSO_set_method(DSO *dso, DSO_METHOD *meth); /* The all-singing all-dancing load function, you normally pass NULL * for the first and third parameters. Use DSO_up and DSO_free for - * reference count handling. */ -DSO *DSO_load(DSO *dso, const char *filename, DSO_METHOD *meth); + * 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); */ +DSO *DSO_load(DSO *dso, const char *filename, DSO_METHOD *meth, int flags); /* This function binds to a function, variable, whatever inside a * shared library. */ @@ -163,17 +185,21 @@ void ERR_load_DSO_strings(void); #define DSO_F_DLFCN_BIND 100 #define DSO_F_DLFCN_LOAD 101 #define DSO_F_DLFCN_UNLOAD 102 -#define DSO_F_DL_BIND 103 -#define DSO_F_DL_LOAD 104 -#define DSO_F_DL_UNLOAD 105 -#define DSO_F_DSO_BIND 106 -#define DSO_F_DSO_FREE 107 -#define DSO_F_DSO_LOAD 108 -#define DSO_F_DSO_NEW_METHOD 109 -#define DSO_F_DSO_UP 110 -#define DSO_F_WIN32_BIND 111 -#define DSO_F_WIN32_LOAD 112 -#define DSO_F_WIN32_UNLOAD 113 +#define DSO_F_DLFCN_CTRL 103 +#define DSO_F_DL_BIND 104 +#define DSO_F_DL_LOAD 105 +#define DSO_F_DL_UNLOAD 106 +#define DSO_F_DL_CTRL 107 +#define DSO_F_DSO_BIND 108 +#define DSO_F_DSO_FREE 109 +#define DSO_F_DSO_LOAD 110 +#define DSO_F_DSO_NEW_METHOD 111 +#define DSO_F_DSO_UP 112 +#define DSO_F_DSO_CTRL 113 +#define DSO_F_WIN32_BIND 114 +#define DSO_F_WIN32_LOAD 115 +#define DSO_F_WIN32_UNLOAD 116 +#define DSO_F_WIN32_CTRL 117 /* Reason codes. */ #define DSO_R_FINISH_FAILED 100 @@ -183,6 +209,8 @@ void ERR_load_DSO_strings(void); #define DSO_R_SYM_FAILURE 104 #define DSO_R_UNLOAD_FAILED 105 #define DSO_R_UNSUPPORTED 106 +#define DSO_R_UNKNOWN_COMMAND 107 +#define DSO_R_CTRL_FAILED 108 #ifdef __cplusplus } |