commit 8a7d698c26084d21ade1cb044da721540bfc1706
author robert.swiecki@gmail.com <robert.swiecki@gmail.com@f4334a76-505f-ddcd-06be-78435f765c3c> Sun Feb 01 15:59:45 2015 +0000
committer robert.swiecki@gmail.com <robert.swiecki@gmail.com@f4334a76-505f-ddcd-06be-78435f765c3c> Sun Feb 01 15:59:45 2015 +0000
tree a570f3b2583e79c9fa3dcaf87ea2bba1c824d8c4
parent ec3acc56bdc6ad3a682f24d09bcca65bdc8f5e8e

Use cs_strerror()

arch_linux.c

diff --git a/arch_linux.c b/arch_linux.c
index 1b19cd7..d71451d 100644
--- a/arch_linux.c
+++ b/arch_linux.c
@@ -121,7 +121,7 @@
         .iov_base = buf,
         .iov_len = sizeof(buf),
     };
-    if (ptrace(PTRACE_GETREGSET, pid, NT_PRSTATUS, &pt_iov) == -1) {
+    if (ptrace(PTRACE_GETREGSET, pid, NT_PRSTATUS, &pt_iov) == -1L) {
         LOGMSG_P(l_WARN, "Cannot tell whether pid '%d' is 32/64-bit");
         return true;
     }
@@ -153,8 +153,9 @@
     }
 
     csh handle;
-    if (cs_open(CS_ARCH_X86, arch_is64Bit(pid) ? CS_MODE_64 : CS_MODE_32, &handle) != CS_ERR_OK) {
-        LOGMSG(l_WARN, "Capstone initilization failed")
+    cs_err err = cs_open(CS_ARCH_X86, arch_is64Bit(pid) ? CS_MODE_64 : CS_MODE_32, &handle);
+    if (err != CS_ERR_OK) {
+        LOGMSG(l_WARN, "Capstone initilization failed: '%s'", cs_strerror(err))
             return;
     }
 
@@ -162,7 +163,8 @@
     size_t count = cs_disasm_ex(handle, buf, memsz, (uint64_t) pc, 1, &insn);
 
     if (count < 1) {
-        LOGMSG(l_WARN, "Couldn't disassemble the x86/x86-64 instruction stream");
+        LOGMSG(l_WARN, "Couldn't disassemble the x86/x86-64 instruction stream: '%s'",
+               cs_strerror(cs_errno(handle)));
         cs_close(&handle);
         return;
     }