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From c7a363f45bd223e49314945d4cfb385e39527682 Mon Sep 17 00:00:00 2001
From: Michael Forney <mforney@mforney.org>
Date: Sun, 7 Jul 2019 21:25:13 -0700
Subject: [PATCH] Avoid pointer arithmetic on `void *`
---
netlink_smc_diag.c | 4 ++--
sockaddr.c | 2 +-
ucopy.c | 6 +++---
3 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/netlink_smc_diag.c b/netlink_smc_diag.c
index 9255c0de..2ed39590 100644
--- a/netlink_smc_diag.c
+++ b/netlink_smc_diag.c
@@ -41,7 +41,7 @@ DECL_NETLINK_DIAG_DECODER(decode_smc_diag_req)
if (len >= sizeof(req)) {
if (!umoven_or_printaddr(tcp, addr + offset,
sizeof(req) - offset,
- (void *) &req + offset)) {
+ (char *) &req + offset)) {
PRINT_FIELD_FLAGS("", req, diag_ext,
smc_diag_extended_flags,
"1<<SMC_DIAG_\?\?\?-1");
@@ -212,7 +212,7 @@ DECL_NETLINK_DIAG_DECODER(decode_smc_diag_msg)
if (len >= sizeof(msg)) {
if (!umoven_or_printaddr(tcp, addr + offset,
sizeof(msg) - offset,
- (void *) &msg + offset)) {
+ (char *) &msg + offset)) {
PRINT_FIELD_XVAL("", msg, diag_state,
smc_states, "SMC_???");
PRINT_FIELD_XVAL_INDEX(", ", msg, diag_fallback,
diff --git a/sockaddr.c b/sockaddr.c
index acba7f02..62f357f5 100644
--- a/sockaddr.c
+++ b/sockaddr.c
@@ -475,7 +475,7 @@ print_sockaddr_data_ll(const void *const buf, const int addrlen)
static void
print_sockaddr_data_raw(const void *const buf, const int addrlen)
{
- const char *const data = buf + SIZEOF_SA_FAMILY;
+ const char *const data = (const char *)buf + SIZEOF_SA_FAMILY;
const int datalen = addrlen - SIZEOF_SA_FAMILY;
tprints("sa_data=");
diff --git a/ucopy.c b/ucopy.c
index 7db49c4a..f509b948 100644
--- a/ucopy.c
+++ b/ucopy.c
@@ -122,7 +122,7 @@ umoven_peekdata(const int pid, kernel_ulong_t addr, unsigned int len,
memcpy(laddr, &u.x[residue], m);
residue = 0;
addr += sizeof(long);
- laddr += m;
+ laddr = (char *)laddr + m;
nread += m;
len -= m;
}
@@ -218,10 +218,10 @@ umovestr_peekdata(const int pid, kernel_ulong_t addr, unsigned int len,
memcpy(laddr, &u.x[residue], m);
while (residue < sizeof(long))
if (u.x[residue++] == '\0')
- return (laddr - orig_addr) + residue;
+ return nread + residue;
residue = 0;
addr += sizeof(long);
- laddr += m;
+ laddr = (char *)laddr + m;
nread += m;
len -= m;
}
--
2.22.0
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