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From 202b2e7b27a159d54a525b0cfd366b8d52d5a3a1 Mon Sep 17 00:00:00 2001
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Message-Id: <202b2e7b27a159d54a525b0cfd366b8d52d5a3a1.1386069831.git.npajkovs@redhat.com>
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From: Nikola Pajkovsky <npajkovs@redhat.com>
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Date: Tue, 3 Dec 2013 12:12:16 +0100
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Subject: [PATCH] Makefile: add -Werror=format-security
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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-Wformat-security
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If -Wformat is specified, also warn about uses of format
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functions that represent possible security problems. At
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present, this warns about calls to printf and scanf functions
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where the format string is not a string literal and there are
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no format arguments, as in printf (foo);. This may be a
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security hole if the format string came from untrusted input
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and contains ‘%n’. (This is currently a subset of what
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-Wformat-nonliteral warns about, but in future warnings may be
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added to -Wformat-security that are not included in
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-Wformat-nonliteral.)
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Signed-off-by: Nikola Pajkovsky <npajkovs@redhat.com>
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---
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Makefile | 2 +-
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src/ipfilter.c | 2 +-
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src/othptab.c | 4 ++--
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3 files changed, 4 insertions(+), 4 deletions(-)
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diff --git a/Makefile b/Makefile
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index 46e5632e3287..958b0fbeec0f 100644
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--- a/Makefile
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+++ b/Makefile
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@@ -18,7 +18,7 @@ VERSION-FILE: FORCE
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@$(SHELL_PATH) ./GEN-VERSION-FILE
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-include VERSION-FILE
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-CFLAGS = -g -O2 -Wall -W -std=gnu99
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+CFLAGS = -g -O2 -Wall -W -std=gnu99 -Werror=format-security
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LDFLAGS =
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ALL_CFLAGS = $(CPPFLAGS) $(CFLAGS)
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ALL_LDFLAGS = $(LDFLAGS)
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diff --git a/src/ipfilter.c b/src/ipfilter.c
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index eb17ec7c7615..8c76e4c801c2 100644
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--- a/src/ipfilter.c
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+++ b/src/ipfilter.c
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@@ -146,7 +146,7 @@ void gethostparams(struct hostparams *data, char *init_saddr, char *init_smask,
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snprintf(msgstr, 60,
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"Invalid protocol input at or near token \"%s\"",
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bptr);
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- tui_error(ANYKEY_MSG, msgstr);
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+ tui_error(ANYKEY_MSG, "%s", msgstr);
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doagain = 1;
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} else
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doagain = 0;
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diff --git a/src/othptab.c b/src/othptab.c
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index 5c09241fca99..e23f39e5df45 100644
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--- a/src/othptab.c
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+++ b/src/othptab.c
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@@ -407,7 +407,7 @@ void printothpentry(struct othptable *table, struct othptabent *entry,
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break;
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}
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- sprintf(scratchpad, rarp_mac_addr);
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+ sprintf(scratchpad, "%s", rarp_mac_addr);
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strcat(msgstring, scratchpad);
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wattrset(table->othpwin, ARPATTR);
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break;
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@@ -482,7 +482,7 @@ void printothpentry(struct othptable *table, struct othptabent *entry,
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wattrset(table->othpwin, UNKNIPATTR);
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protptr = getprotobynumber(entry->protocol);
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if (protptr != NULL) {
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- sprintf(protname, protptr->p_aliases[0]);
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+ sprintf(protname, "%s", protptr->p_aliases[0]);
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} else {
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sprintf(protname, "IP protocol");
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unknown = 1;
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--
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1.8.3.2
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