diff options
Diffstat (limited to 'crypto/dso/dso_dl.c')
| -rw-r--r-- | crypto/dso/dso_dl.c | 89 |
1 files changed, 70 insertions, 19 deletions
diff --git a/crypto/dso/dso_dl.c b/crypto/dso/dso_dl.c index 7a6770ef6d..c38d8863e5 100644 --- a/crypto/dso/dso_dl.c +++ b/crypto/dso/dso_dl.c @@ -72,7 +72,7 @@ DSO_METHOD *DSO_METHOD_dl(void) /* Part of the hack in "dl_load" ... */ #define DSO_MAX_TRANSLATED_SIZE 256 -static int dl_load(DSO *dso, const char *filename); +static int dl_load(DSO *dso); static int dl_unload(DSO *dso); static void *dl_bind_var(DSO *dso, const char *symname); static DSO_FUNC_TYPE dl_bind_func(DSO *dso, const char *symname); @@ -83,6 +83,7 @@ static int dl_init(DSO *dso); static int dl_finish(DSO *dso); static int dl_ctrl(DSO *dso, int cmd, long larg, void *parg); #endif +static char *dl_name_converter(DSO *dso, const char *filename); static DSO_METHOD dso_meth_dl = { "OpenSSL 'dl' shared library method", @@ -96,6 +97,7 @@ static DSO_METHOD dso_meth_dl = { NULL, /* unbind_func */ #endif NULL, /* ctrl */ + dl_name_converter, NULL, /* init */ NULL /* finish */ }; @@ -111,35 +113,41 @@ DSO_METHOD *DSO_METHOD_dl(void) * type so the cast is safe. */ -static int dl_load(DSO *dso, const char *filename) +static int dl_load(DSO *dso) { - shl_t ptr; - char translated[DSO_MAX_TRANSLATED_SIZE]; - int len; + shl_t ptr = NULL; + /* We don't do any fancy retries or anything, just take the method's + * (or DSO's if it has the callback set) best translation of the + * platform-independant filename and try once with that. */ + char *filename= DSO_convert_filename(dso, NULL); - /* The same comment as in dlfcn_load applies here. bleurgh. */ - 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 = shl_load(translated, BIND_IMMEDIATE, NULL); + DSOerr(DSO_F_DL_LOAD,DSO_R_NO_FILENAME); + goto err; } - else - ptr = shl_load(filename, BIND_IMMEDIATE, NULL); + ptr = shl_load(filename, BIND_IMMEDIATE, NULL); if(ptr == NULL) { DSOerr(DSO_F_DL_LOAD,DSO_R_LOAD_FAILED); - return(0); + goto err; } if(!sk_push(dso->meth_data, (char *)ptr)) { DSOerr(DSO_F_DL_LOAD,DSO_R_STACK_ERROR); - shl_unload(ptr); - return(0); + goto err; } + /* Success, stick the converted filename we've loaded under into the DSO + * (it also serves as the indicator that we are currently loaded). */ + dso->loaded_filename = filename; return(1); +err: + /* Cleanup! */ + if(filename != NULL) + OPENSSL_free(filename); + if(ptr != NULL) + shl_unload(ptr); + return(0); } static int dl_unload(DSO *dso) @@ -187,7 +195,7 @@ static void *dl_bind_var(DSO *dso, const char *symname) DSOerr(DSO_F_DL_BIND_VAR,DSO_R_NULL_HANDLE); return(NULL); } - if (shl_findsym(ptr, symname, TYPE_UNDEFINED, &sym) < 0) + if (shl_findsym(&ptr, symname, TYPE_UNDEFINED, &sym) < 0) { DSOerr(DSO_F_DL_BIND_VAR,DSO_R_SYM_FAILURE); return(NULL); @@ -216,7 +224,7 @@ static DSO_FUNC_TYPE dl_bind_func(DSO *dso, const char *symname) DSOerr(DSO_F_DL_BIND_FUNC,DSO_R_NULL_HANDLE); return(NULL); } - if (shl_findsym(ptr, symname, TYPE_UNDEFINED, &sym) < 0) + if (shl_findsym(&ptr, symname, TYPE_UNDEFINED, &sym) < 0) { DSOerr(DSO_F_DL_BIND_FUNC,DSO_R_SYM_FAILURE); return(NULL); @@ -224,4 +232,47 @@ static DSO_FUNC_TYPE dl_bind_func(DSO *dso, const char *symname) return((DSO_FUNC_TYPE)sym); } +/* This function is identical to the one in dso_dlfcn.c, but as it is highly + * unlikely that both the "dl" *and* "dlfcn" variants are being compiled at the + * same time, there's no great duplicating the code. Figuring out an elegant + * way to share one copy of the code would be more difficult and would not + * leave the implementations independant. */ +#if defined(__hpux) +static const char extension[] = ".sl"; +#else +static const char extension[] = ".so"; +#endif +static char *dl_name_converter(DSO *dso, const char *filename) + { + char *translated; + int len, rsize, transform; + + len = strlen(filename); + rsize = len + 1; + transform = (strstr(filename, "/") == NULL); + { + /* We will convert this to "%s.s?" or "lib%s.s?" */ + rsize += strlen(extension);/* The length of ".s?" */ + if ((DSO_flags(dso) & DSO_FLAG_NAME_TRANSLATION_EXT_ONLY) == 0) + rsize += 3; /* The length of "lib" */ + } + translated = OPENSSL_malloc(rsize); + if(translated == NULL) + { + DSOerr(DSO_F_DL_NAME_CONVERTER, + DSO_R_NAME_TRANSLATION_FAILED); + return(NULL); + } + if(transform) + { + if ((DSO_flags(dso) & DSO_FLAG_NAME_TRANSLATION_EXT_ONLY) == 0) + sprintf(translated, "lib%s%s", filename, extension); + else + sprintf(translated, "%s%s", filename, extension); + } + else + sprintf(translated, "%s", filename); + return(translated); + } + #endif /* DSO_DL */ |