diff options
Diffstat (limited to 'crypto/openssl/crypto/dso/dso_dlfcn.c')
| -rw-r--r-- | crypto/openssl/crypto/dso/dso_dlfcn.c | 97 |
1 files changed, 55 insertions, 42 deletions
diff --git a/crypto/openssl/crypto/dso/dso_dlfcn.c b/crypto/openssl/crypto/dso/dso_dlfcn.c index acf09f5..906b470 100644 --- a/crypto/openssl/crypto/dso/dso_dlfcn.c +++ b/crypto/openssl/crypto/dso/dso_dlfcn.c @@ -74,7 +74,7 @@ DSO_METHOD *DSO_METHOD_dlfcn(void) /* Part of the hack in "dlfcn_load" ... */ #define DSO_MAX_TRANSLATED_SIZE 256 -static int dlfcn_load(DSO *dso, const char *filename); +static int dlfcn_load(DSO *dso); static int dlfcn_unload(DSO *dso); static void *dlfcn_bind_var(DSO *dso, const char *symname); static DSO_FUNC_TYPE dlfcn_bind_func(DSO *dso, const char *symname); @@ -82,8 +82,9 @@ static DSO_FUNC_TYPE dlfcn_bind_func(DSO *dso, const char *symname); static int dlfcn_unbind(DSO *dso, char *symname, void *symptr); static int dlfcn_init(DSO *dso); static int dlfcn_finish(DSO *dso); -#endif static long dlfcn_ctrl(DSO *dso, int cmd, long larg, void *parg); +#endif +static char *dlfcn_name_converter(DSO *dso, const char *filename); static DSO_METHOD dso_meth_dlfcn = { "OpenSSL 'dlfcn' shared library method", @@ -96,7 +97,8 @@ static DSO_METHOD dso_meth_dlfcn = { NULL, /* unbind_var */ NULL, /* unbind_func */ #endif - dlfcn_ctrl, + NULL, /* ctrl */ + dlfcn_name_converter, NULL, /* init */ NULL /* finish */ }; @@ -130,41 +132,40 @@ DSO_METHOD *DSO_METHOD_dlfcn(void) * (i) the handle (void*) returned from dlopen(). */ -static int dlfcn_load(DSO *dso, const char *filename) +static int dlfcn_load(DSO *dso) { - void *ptr; - char translated[DSO_MAX_TRANSLATED_SIZE]; - int len; + void *ptr = NULL; + /* See applicable comments in dso_dl.c */ + char *filename = DSO_convert_filename(dso, NULL); - /* NB: This is a hideous hack, but I'm not yet sure what - * to replace it with. This attempts to convert any filename, - * that looks like it has no path information, into a - * translated form, e. "blah" -> "libblah.so" */ - len = strlen(filename); - if((dso->flags & DSO_FLAG_NAME_TRANSLATION) && - (len + 6 < DSO_MAX_TRANSLATED_SIZE) && - (strstr(filename, "/") == NULL)) + if(filename == NULL) { - sprintf(translated, "lib%s.so", filename); - ptr = dlopen(translated, DLOPEN_FLAG); - } - else - { - ptr = dlopen(filename, DLOPEN_FLAG); + DSOerr(DSO_F_DLFCN_LOAD,DSO_R_NO_FILENAME); + goto err; } + ptr = dlopen(filename, DLOPEN_FLAG); if(ptr == NULL) { DSOerr(DSO_F_DLFCN_LOAD,DSO_R_LOAD_FAILED); - return(0); + ERR_add_error_data(4, "filename(", filename, "): ", dlerror()); + goto err; } if(!sk_push(dso->meth_data, (char *)ptr)) { DSOerr(DSO_F_DLFCN_LOAD,DSO_R_STACK_ERROR); - dlclose(ptr); - return(0); + goto err; } + /* Success */ + dso->loaded_filename = filename; return(1); - } +err: + /* Cleanup! */ + if(filename != NULL) + OPENSSL_free(filename); + if(ptr != NULL) + dlclose(ptr); + return(0); +} static int dlfcn_unload(DSO *dso) { @@ -214,6 +215,7 @@ static void *dlfcn_bind_var(DSO *dso, const char *symname) if(sym == NULL) { DSOerr(DSO_F_DLFCN_BIND_VAR,DSO_R_SYM_FAILURE); + ERR_add_error_data(4, "symname(", symname, "): ", dlerror()); return(NULL); } return(sym); @@ -244,33 +246,44 @@ static DSO_FUNC_TYPE dlfcn_bind_func(DSO *dso, const char *symname) if(sym == NULL) { DSOerr(DSO_F_DLFCN_BIND_FUNC,DSO_R_SYM_FAILURE); + ERR_add_error_data(4, "symname(", symname, "): ", dlerror()); return(NULL); } return(sym); } -static long dlfcn_ctrl(DSO *dso, int cmd, long larg, void *parg) +static char *dlfcn_name_converter(DSO *dso, const char *filename) { - if(dso == NULL) + char *translated; + int len, rsize, transform; + + len = strlen(filename); + rsize = len + 1; + transform = (strstr(filename, "/") == NULL); + if(transform) { - DSOerr(DSO_F_DLFCN_CTRL,ERR_R_PASSED_NULL_PARAMETER); - return(-1); + /* We will convert this to "%s.so" or "lib%s.so" */ + rsize += 3; /* The length of ".so" */ + if ((DSO_flags(dso) & DSO_FLAG_NAME_TRANSLATION_EXT_ONLY) == 0) + rsize += 3; /* The length of "lib" */ } - switch(cmd) + translated = OPENSSL_malloc(rsize); + if(translated == NULL) { - case DSO_CTRL_GET_FLAGS: - return dso->flags; - case DSO_CTRL_SET_FLAGS: - dso->flags = (int)larg; - return(0); - case DSO_CTRL_OR_FLAGS: - dso->flags |= (int)larg; - return(0); - default: - break; + DSOerr(DSO_F_DLFCN_NAME_CONVERTER, + DSO_R_NAME_TRANSLATION_FAILED); + return(NULL); } - DSOerr(DSO_F_DLFCN_CTRL,DSO_R_UNKNOWN_COMMAND); - return(-1); + if(transform) + { + if ((DSO_flags(dso) & DSO_FLAG_NAME_TRANSLATION_EXT_ONLY) == 0) + sprintf(translated, "lib%s.so", filename); + else + sprintf(translated, "%s.so", filename); + } + else + sprintf(translated, "%s", filename); + return(translated); } #endif /* DSO_DLFCN */ |
