1 files changed, 100 insertions, 0 deletions
diff --git a/security/nss/lib/freebl/blname.c b/security/nss/lib/freebl/blname.c
new file mode 100644
index 0000000000..4bad74ada0
--- /dev/null
+++ b/security/nss/lib/freebl/blname.c
@@ -0,0 +1,100 @@
+/*
+ *  blname.c - determine the freebl library name.
+ *  This Source Code Form is subject to the terms of the Mozilla Public
+ *  License, v. 2.0. If a copy of the MPL was not distributed with this
+ *  file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#if defined(FREEBL_LOWHASH)
+static const char* default_name =
+    SHLIB_PREFIX "freeblpriv" SHLIB_VERSION "." SHLIB_SUFFIX;
+#else
+static const char* default_name =
+    SHLIB_PREFIX "freebl" SHLIB_VERSION "." SHLIB_SUFFIX;
+#endif
+
+/* getLibName() returns the name of the library to load. */
+
+#if defined(SOLARIS) && defined(__sparc)
+#include <stddef.h>
+#include <strings.h>
+#include <sys/systeminfo.h>
+
+#if defined(NSS_USE_64)
+
+const static char fpu_hybrid_shared_lib[] = "libfreebl_64fpu_3.so";
+const static char int_hybrid_shared_lib[] = "libfreebl_64int_3.so";
+const static char non_hybrid_shared_lib[] = "libfreebl_64fpu_3.so";
+
+const static char int_hybrid_isa[] = "sparcv9";
+const static char fpu_hybrid_isa[] = "sparcv9+vis";
+
+#else
+
+const static char fpu_hybrid_shared_lib[] = "libfreebl_32fpu_3.so";
+const static char int_hybrid_shared_lib[] = "libfreebl_32int64_3.so";
+/* This was for SPARC V8, now obsolete. */
+const static char* const non_hybrid_shared_lib = NULL;
+
+const static char int_hybrid_isa[] = "sparcv8plus";
+const static char fpu_hybrid_isa[] = "sparcv8plus+vis";
+
+#endif
+
+static const char*
+getLibName(void)
+{
+    char* found_int_hybrid;
+    char* found_fpu_hybrid;
+    long buflen;
+    char buf[256];
+
+    buflen = sysinfo(SI_ISALIST, buf, sizeof buf);
+    if (buflen <= 0)
+        return NULL;
+    /* sysinfo output is always supposed to be NUL terminated, but ... */
+    if (buflen < sizeof buf)
+        buf[buflen] = '\0';
+    else
+        buf[(sizeof buf) - 1] = '\0';
+    /* The ISA list is a space separated string of names of ISAs and
+     * ISA extensions, in order of decreasing performance.
+     * There are two different ISAs with which NSS's crypto code can be
+     * accelerated. If both are in the list, we take the first one.
+     * If one is in the list, we use it, and if neither then we use
+     * the base unaccelerated code.
+     */
+    found_int_hybrid = strstr(buf, int_hybrid_isa);
+    found_fpu_hybrid = strstr(buf, fpu_hybrid_isa);
+    if (found_fpu_hybrid &&
+        (!found_int_hybrid ||
+         (found_int_hybrid - found_fpu_hybrid) >= 0)) {
+        return fpu_hybrid_shared_lib;
+    }
+    if (found_int_hybrid) {
+        return int_hybrid_shared_lib;
+    }
+    return non_hybrid_shared_lib;
+}
+
+#elif defined(HPUX) && !defined(NSS_USE_64) && !defined(__ia64)
+#include <unistd.h>
+
+/* This code tests to see if we're running on a PA2.x CPU.
+** It returns true (1) if so, and false (0) otherwise.
+*/
+static const char*
+getLibName(void)
+{
+    long cpu = sysconf(_SC_CPU_VERSION);
+    return (cpu == CPU_PA_RISC2_0)
+               ? "libfreebl_32fpu_3.sl"
+               : "libfreebl_32int_3.sl";
+}
+#else
+/* default case, for platforms/ABIs that have only one freebl shared lib. */
+static const char*
+getLibName(void)
+{
+    return default_name;
+}
+#endif