Have all tests use EXIT() to exit rather than exit(), since the latter doesn't

[openssl.git] / crypto / dso / dso_dl.c

diff --git a/crypto/dso/dso_dl.c b/crypto/dso/dso_dl.c
index 6dd1b197555ce3e3f4959d1106cdb53939f65b05..32a8d41bf74986ac8ee584908e0eeeb1575be475 100644 (file)
--- a/crypto/dso/dso_dl.c
+++ b/crypto/dso/dso_dl.c
@@ -1,5 +1,5 @@
-/* dso_dl.c */
-/* Written by Richard Levitte (levitte@openssl.org) for the OpenSSL
+/* dso_dl.c -*- mode:C; c-file-style: "eay" -*- */
+/* Written by Richard Levitte (richard@levitte.org) for the OpenSSL
  * project 2000.
  */
 /* ====================================================================
@@ -84,6 +84,7 @@ 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 char *dl_merger(DSO *dso, const char *filespec1, const char *filespec2);
 
 static DSO_METHOD dso_meth_dl = {
        "OpenSSL 'dl' shared library method",
@@ -98,6 +99,7 @@ static DSO_METHOD dso_meth_dl = {
 #endif
        NULL, /* ctrl */
        dl_name_converter,
+       dl_merger,
        NULL, /* init */
        NULL  /* finish */
        };
@@ -126,10 +128,12 @@ static int dl_load(DSO *dso)
                DSOerr(DSO_F_DL_LOAD,DSO_R_NO_FILENAME);
                goto err;
                }
-       ptr = shl_load(filename, BIND_IMMEDIATE, NULL);
+       ptr = shl_load(filename, BIND_IMMEDIATE|DYNAMIC_PATH, NULL);
        if(ptr == NULL)
                {
                DSOerr(DSO_F_DL_LOAD,DSO_R_LOAD_FAILED);
+               ERR_add_error_data(4, "filename(", filename, "): ",
+                       strerror(errno));
                goto err;
                }
        if(!sk_push(dso->meth_data, (char *)ptr))
@@ -198,6 +202,8 @@ static void *dl_bind_var(DSO *dso, const char *symname)
        if (shl_findsym(&ptr, symname, TYPE_UNDEFINED, &sym) < 0)
                {
                DSOerr(DSO_F_DL_BIND_VAR,DSO_R_SYM_FAILURE);
+               ERR_add_error_data(4, "symname(", symname, "): ",
+                       strerror(errno));
                return(NULL);
                }
        return(sym);
@@ -227,29 +233,104 @@ static DSO_FUNC_TYPE dl_bind_func(DSO *dso, const char *symname)
        if (shl_findsym(&ptr, symname, TYPE_UNDEFINED, &sym) < 0)
                {
                DSOerr(DSO_F_DL_BIND_FUNC,DSO_R_SYM_FAILURE);
+               ERR_add_error_data(4, "symname(", symname, "): ",
+                       strerror(errno));
                return(NULL);
                }
        return((DSO_FUNC_TYPE)sym);
        }
 
+static char *dl_merger(DSO *dso, const char *filespec1, const char *filespec2)
+       {
+       char *merged;
+
+       if(!filespec1 && !filespec2)
+               {
+               DSOerr(DSO_F_DL_MERGER,
+                               ERR_R_PASSED_NULL_PARAMETER);
+               return(NULL);
+               }
+       /* If the first file specification is a rooted path, it rules.
+          same goes if the second file specification is missing. */
+       if (!filespec2 || filespec1[0] == '/')
+               {
+               merged = OPENSSL_malloc(strlen(filespec1) + 1);
+               if(!merged)
+                       {
+                       DSOerr(DSO_F_DL_MERGER,
+                               ERR_R_MALLOC_FAILURE);
+                       return(NULL);
+                       }
+               strcpy(merged, filespec1);
+               }
+       /* If the first file specification is missing, the second one rules. */
+       else if (!filespec1)
+               {
+               merged = OPENSSL_malloc(strlen(filespec2) + 1);
+               if(!merged)
+                       {
+                       DSOerr(DSO_F_DL_MERGER,
+                               ERR_R_MALLOC_FAILURE);
+                       return(NULL);
+                       }
+               strcpy(merged, filespec2);
+               }
+       else
+               /* This part isn't as trivial as it looks.  It assumes that
+                  the second file specification really is a directory, and
+                  makes no checks whatsoever.  Therefore, the result becomes
+                  the concatenation of filespec2 followed by a slash followed
+                  by filespec1. */
+               {
+               int spec2len, len;
+
+               spec2len = (filespec2 ? strlen(filespec2) : 0);
+               len = spec2len + (filespec1 ? strlen(filespec1) : 0);
+
+               if(filespec2 && filespec2[spec2len - 1] == '/')
+                       {
+                       spec2len--;
+                       len--;
+                       }
+               merged = OPENSSL_malloc(len + 2);
+               if(!merged)
+                       {
+                       DSOerr(DSO_F_DL_MERGER,
+                               ERR_R_MALLOC_FAILURE);
+                       return(NULL);
+                       }
+               strcpy(merged, filespec2);
+               merged[spec2len] = '/';
+               strcpy(&merged[spec2len + 1], filespec1);
+               }
+       return(merged);
+       }
+
 /* 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. */
+ * 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, transform;
+       int len, rsize, transform;
 
        len = strlen(filename);
+       rsize = len + 1;
        transform = (strstr(filename, "/") == NULL);
-       if(transform)
-               /* We will convert this to "lib%s.so" */
-               translated = OPENSSL_malloc(len + 7);
-       else
-               /* We will simply duplicate filename */
-               translated = OPENSSL_malloc(len + 1);
+               {
+               /* 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,
@@ -257,7 +338,12 @@ static char *dl_name_converter(DSO *dso, const char *filename)
                return(NULL);   
                }
        if(transform)
-               sprintf(translated, "lib%s.so", filename);
+               {
+               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);