Fix compiler warnings in pcregrep

pcre-8.42-RC1-A-small-fix-to-pcregrep-to-avoid-compiler-warnings-f.patch

@@ -0,0 +1,70 @@
+From 25ba46be7b2732a4e1fb272208d15c12807fd0ae Mon Sep 17 00:00:00 2001
+From: ph10 <ph10@2f5784b3-3f2a-0410-8824-cb99058d5e15>
+Date: Sun, 25 Feb 2018 12:23:55 +0000
+Subject: [PATCH] A small fix to pcregrep to avoid compiler warnings for
+ -Wformat-overflow=2.
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+git-svn-id: svn://vcs.exim.org/pcre/code/trunk@1727 2f5784b3-3f2a-0410-8824-cb99058d5e15
+Signed-off-by: Petr Písař <ppisar@redhat.com>
+---
+ ChangeLog  |  2 ++
+ pcregrep.c | 20 +++++++++++++++++---
+ 2 files changed, 19 insertions(+), 3 deletions(-)
+
+diff --git a/ChangeLog b/ChangeLog
+index 5d1a4d9..a8cf378 100644
+--- a/ChangeLog
++++ b/ChangeLog
+@@ -49,6 +49,8 @@ containing multi-code-unit characters caused bad behaviour and possibly a
+ crash. This issue was fixed for other kinds of repeat in release 8.37 by change
+ 38, but repeating character classes were overlooked.
+ 
++6. A small fix to pcregrep to avoid compiler warnings for -Wformat-overflow=2.
++
+ 
+ Version 8.41 05-July-2017
+ -------------------------
+diff --git a/pcregrep.c b/pcregrep.c
+index 69ba85a..a406be9 100644
+--- a/pcregrep.c
++++ b/pcregrep.c
+@@ -2527,7 +2527,14 @@ if ((popts & PO_FIXED_STRINGS) != 0)
+     }
+   }
+ 
+-sprintf(buffer, "%s%.*s%s", prefix[popts], patlen, ps, suffix[popts]);
++if (snprintf(buffer, PATBUFSIZE, "%s%.*s%s", prefix[popts], patlen, ps,
++      suffix[popts]) > PATBUFSIZE)
++  {
++  fprintf(stderr, "pcregrep: Buffer overflow while compiling \"%s\"\n",
++    ps);
++  return FALSE;
++  }
++
+ p->compiled = pcre_compile(buffer, options, &error, &errptr, pcretables);
+ if (p->compiled != NULL) return TRUE;
+ 
+@@ -2763,8 +2770,15 @@ for (i = 1; i < argc; i++)
+         int arglen = (argequals == NULL || equals == NULL)?
+           (int)strlen(arg) : (int)(argequals - arg);
+ 
+-        sprintf(buff1, "%.*s", baselen, op->long_name);
+-        sprintf(buff2, "%s%.*s", buff1, fulllen - baselen - 2, opbra + 1);
++        if (snprintf(buff1, sizeof(buff1), "%.*s", baselen, op->long_name) >
++              (int)sizeof(buff1) ||
++            snprintf(buff2, sizeof(buff2), "%s%.*s", buff1,
++              fulllen - baselen - 2, opbra + 1) > (int)sizeof(buff2))
++          {
++          fprintf(stderr, "pcregrep: Buffer overflow when parsing %s option\n",
++            op->long_name);
++          pcregrep_exit(2);
++          }
+ 
+         if (strncmp(arg, buff1, arglen) == 0 ||
+            strncmp(arg, buff2, arglen) == 0)
+-- 
+2.13.6
+

pcre.spec

@@ -2,7 +2,7 @@
 %global rcversion RC1
 Name:       pcre
 Version:    8.42
-Release:    %{?rcversion:0.}1%{?rcversion:.%rcversion}%{?dist}
+Release:    %{?rcversion:0.}2%{?rcversion:.%rcversion}%{?dist}
 %global myversion %{version}%{?rcversion:-%rcversion}
 Summary:    Perl-compatible regular expression library
 ## Source package only:
@@ -35,6 +35,8 @@ Patch0:     pcre-8.21-multilib.patch
 Patch1:     pcre-8.32-refused_spelling_terminated.patch
 # Fix recursion stack estimator, upstream bug #2173, refused by upstream
 Patch2:     pcre-8.41-fix_stack_estimator.patch
+# Fix compiler warnings in pcregrep, in upstream after 8.42-RC1
+Patch3:     pcre-8.42-RC1-A-small-fix-to-pcregrep-to-avoid-compiler-warnings-f.patch
 BuildRequires:  readline-devel
 BuildRequires:  autoconf
 BuildRequires:  automake
@@ -119,6 +121,7 @@ Utilities demonstrating PCRE capabilities like pcregrep or pcretest.
 %patch0 -p1
 %patch1 -p1
 %patch2 -p2
+%patch3 -p1
 # Because of rpath patch
 libtoolize --copy --force
 autoreconf -vif
@@ -213,6 +216,9 @@ make %{?_smp_mflags} check VERBOSE=yes
 %{_mandir}/man1/pcretest.*
 
 %changelog
+* Mon Feb 26 2018 Petr Pisar <ppisar@redhat.com> - 8.42-0.2.RC1
+- Fix compiler warnings in pcregrep
+
 * Fri Feb 23 2018 Petr Pisar <ppisar@redhat.com> - 8.42-0.1.RC1
 - 8.42-RC1 bump