From 1aa7c87ea8ef0925f2ce372b25e4a8ce8f19c943 Mon Sep 17 00:00:00 2001
From: David Carlier <devnexen@gmail.com>
Date: Wed, 1 Jul 2020 21:14:34 +0100
Subject: libtokencap illumos/solaris support proposal.

---
 libtokencap/libtokencap.so.c | 40 +++++++++++++++++++++++++++++++++++++++-
 1 file changed, 39 insertions(+), 1 deletion(-)

(limited to 'libtokencap/libtokencap.so.c')

diff --git a/libtokencap/libtokencap.so.c b/libtokencap/libtokencap.so.c
index 600d2a5d..6ed35551 100644
--- a/libtokencap/libtokencap.so.c
+++ b/libtokencap/libtokencap.so.c
@@ -35,7 +35,7 @@
 
 #if !defined __linux__ && !defined __APPLE__ && !defined __FreeBSD__ &&      \
     !defined __OpenBSD__ && !defined __NetBSD__ && !defined __DragonFly__ && \
-    !defined(__HAIKU__)
+    !defined(__HAIKU__) && !defined(__sun)
   #error "Sorry, this library is unsupported in this platform for now!"
 #endif /* !__linux__ && !__APPLE__ && ! __FreeBSD__ && ! __OpenBSD__ && \
           !__NetBSD__*/
@@ -52,6 +52,10 @@
   #include <sys/mman.h>
 #elif defined __HAIKU__
   #include <kernel/image.h>
+#elif defined __sun
+  /* For map addresses the old struct is enough */
+  #include <sys/procfs.h>
+  #include <limits.h>
 #endif
 
 #include <dlfcn.h>
@@ -237,6 +241,8 @@ static void __tokencap_load_mappings(void) {
   image_info ii;
   int32_t    group = 0;
 
+  __tokencap_ro_loaded = 1;
+
   while (get_next_image_info(0, &group, &ii) == B_OK) {
 
     __tokencap_ro[__tokencap_ro_cnt].st = ii.text;
@@ -246,6 +252,38 @@ static void __tokencap_load_mappings(void) {
 
   }
 
+#elif defined __sun
+  prmap_t *c, *map;
+  char path[PATH_MAX];
+  ssize_t r;
+  size_t hint;
+  int fd;
+
+  snprintf(path, sizeof(path), "/proc/%ld/map", getpid());
+  fd = open(path, O_RDONLY);
+  hint = (1 << 20);
+  map = malloc(hint);
+
+  __tokencap_ro_loaded = 1;
+
+  for (; (r = pread(fd, map, hint, 0)) == hint; ) {
+    
+    hint <<= 1;	  
+    map = realloc(map, hint);
+
+  }
+
+  for (c = map; c++; r -= sizeof(prmap_t)) {
+
+    __tokencap_ro[__tokencap_ro_cnt].st = c->pr_vaddr;
+    __tokencap_ro[__tokencap_ro_cnt].en = c->pr_vaddr + c->pr_size;
+
+    if (++__tokencap_ro_cnt == MAX_MAPPINGS) break;
+
+  }
+
+  free(map);
+  close(fd);
 #endif
 
 }
-- 
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