Document default section and library configuration

[openssl.git] / apps / version.c

diff --git a/apps/version.c b/apps/version.c
index 24f1a80fdf362596fcc8df8aae3838cb7d105cd4..57b9fd663fcc725ad999eb8e3b86380d8f5265c4 100644 (file)
--- a/apps/version.c
+++ b/apps/version.c
@@ -32,7 +32,7 @@
 
 typedef enum OPTION_choice {
     OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
-    OPT_B, OPT_D, OPT_E, OPT_F, OPT_O, OPT_P, OPT_V, OPT_A
+    OPT_B, OPT_D, OPT_E, OPT_F, OPT_O, OPT_P, OPT_V, OPT_A, OPT_R
 } OPTION_CHOICE;
 
 const OPTIONS version_options[] = {
@@ -44,13 +44,24 @@ const OPTIONS version_options[] = {
     {"f", OPT_F, '-', "Show compiler flags used"},
     {"o", OPT_O, '-', "Show some internal datatype options"},
     {"p", OPT_P, '-', "Show target build platform"},
+    {"r", OPT_R, '-', "Show random seeding options"},
     {"v", OPT_V, '-', "Show library version"},
     {NULL}
 };
 
+#if defined(OPENSSL_RAND_SEED_DEVRANDOM) || defined(OPENSSL_RAND_SEED_EGD)
+static void printlist(const char *prefix, const char **dev)
+{
+    printf("%s (", prefix);
+    for ( ; *dev != NULL; dev++)
+        printf(" \"%s\"", *dev);
+    printf(" )");
+}
+#endif
+
 int version_main(int argc, char **argv)
 {
-    int ret = 1, dirty = 0;
+    int ret = 1, dirty = 0, seed = 0;
     int cflags = 0, version = 0, date = 0, options = 0, platform = 0, dir = 0;
     int engdir = 0;
     char *prog;
@@ -61,6 +72,7 @@ int version_main(int argc, char **argv)
         switch (o) {
         case OPT_EOF:
         case OPT_ERR:
+opthelp:
             BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
             goto end;
         case OPT_HELP:
@@ -85,14 +97,21 @@ int version_main(int argc, char **argv)
         case OPT_P:
             dirty = platform = 1;
             break;
+        case OPT_R:
+            dirty = seed = 1;
+            break;
         case OPT_V:
             dirty = version = 1;
             break;
         case OPT_A:
-            cflags = version = date = platform = dir = engdir = 1;
+            seed = cflags = version = date = platform = dir = engdir = 1;
             break;
         }
     }
+    if (opt_num_rest() != 0) {
+        BIO_printf(bio_err, "Extra parameters given.\n");
+        goto opthelp;
+    }
     if (!dirty)
         version = 1;
 
@@ -133,6 +152,40 @@ int version_main(int argc, char **argv)
         printf("%s\n", OpenSSL_version(OPENSSL_DIR));
     if (engdir)
         printf("%s\n", OpenSSL_version(OPENSSL_ENGINES_DIR));
+    if (seed) {
+        printf("Seeding source:");
+#ifdef OPENSSL_RAND_SEED_RTDSC
+        printf(" rtdsc");
+#endif
+#ifdef OPENSSL_RAND_SEED_RDCPU
+        printf(" rdrand ( rdseed rdrand )");
+#endif
+#ifdef OPENSSL_RAND_SEED_LIBRANDOM
+        printf(" C-library-random");
+#endif
+#ifdef OPENSSL_RAND_SEED_GETRANDOM
+        printf(" getrandom-syscall");
+#endif
+#ifdef OPENSSL_RAND_SEED_DEVRANDOM
+        {
+            static const char *dev[] = { DEVRANDOM, NULL };
+            printlist(" random-device", dev);
+        }
+#endif
+#ifdef OPENSSL_RAND_SEED_EGD
+        {
+            static const char *dev[] = { DEVRANDOM_EGD, NULL };
+            printlist(" EGD", dev);
+        }
+#endif
+#ifdef OPENSSL_RAND_SEED_NONE
+        printf(" none");
+#endif
+#ifdef OPENSSL_RAND_SEED_OS
+        printf(" os-specific");
+#endif
+        printf("\n");
+    }
     ret = 0;
  end:
     return (ret);