From: Dmitry V. Levin <ldv@altlinux.org>
Date: Thu, 12 May 2016 14:27:49 +0000 (+0000)
Subject: Do not sign-extend siginfo_t.si_syscall
X-Git-Tag: v4.12~184
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=49955948fb8696efd6fcb6ed4035241853ac085f;p=strace

Do not sign-extend siginfo_t.si_syscall

* printsiginfo.c (print_si_info): Explicitly cast si_syscall member
of siginfo_t that has type "int" to "unsigned int", to avoid sign
extension when passed to syscall_name function.
---

diff --git a/printsiginfo.c b/printsiginfo.c
index 4083e19a..240fd65e 100644
--- a/printsiginfo.c
+++ b/printsiginfo.c
@@ -198,7 +198,7 @@ print_si_info(const siginfo_t *sip, bool verbose)
 		case SIGSYS:
 			tprintf(", si_call_addr=%#lx, si_syscall=__NR_%s, si_arch=",
 				(unsigned long) sip->si_call_addr,
-				syscall_name(sip->si_syscall));
+				syscall_name((unsigned) sip->si_syscall));
 			printxval(audit_arch, sip->si_arch, "AUDIT_ARCH_???");
 			break;
 #endif