File _service:tar_scm:backport-clang-0010-resolv-Han... of Package glibc

File _service:tar_scm:backport-clang-0010-resolv-Handle-Wsometimes-uninitialized-on-getaddrinfo.patch of Package glibc (Revision 756e0ca71b8eecd09f8ca555e0cce4dd)

Currently displaying revision 756e0ca71b8eecd09f8ca555e0cce4dd , Show latest

From 05bacf0daf3292678d566df371ad331249fe23b3 Mon Sep 17 00:00:00 2001
From: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Tue, 22 Mar 2022 16:01:34 -0300
Subject: [PATCH] resolv: Handle -Wsometimes-uninitialized on getaddrinfo

---
 sysdeps/posix/getaddrinfo.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
index 531124958d..fb913d7d6b 100644
--- a/sysdeps/posix/getaddrinfo.c
+++ b/sysdeps/posix/getaddrinfo.c
@@ -1874,6 +1874,10 @@ add_prefixlist (struct prefixlist **listp, size_t *lenp, bool *nullbitsp,
   if (cp != NULL)
     *cp++ = '\0';
   *pos = cp;
+  /* clang warns that endp is used uninitialized whenever '||' condition
+     is true, however it will be evaluated after strtoul call.  */
+  DIAG_PUSH_NEEDS_COMMENT_CLANG;
+  DIAG_IGNORE_NEEDS_COMMENT_CLANG (13, "-Wsometimes-uninitialized");
   if (inet_pton (AF_INET6, val1, &prefix)
       && (cp == NULL
 	  || (bits = strtoul (cp, &endp, 10)) != ULONG_MAX
@@ -1897,6 +1901,7 @@ add_prefixlist (struct prefixlist **listp, size_t *lenp, bool *nullbitsp,
       ++*lenp;
       *nullbitsp |= bits == 0;
     }
+  DIAG_POP_NEEDS_COMMENT_CLANG;
   return true;
 }
 
@@ -2035,6 +2040,11 @@ gaiconf_init (void)
 	      if (inet_pton (AF_INET6, val1, &prefix))
 		{
 		  bits = 128;
+		  /* clang warns that endp is used uninitialized whenever '||'
+		     condition is true, however it will be evaluated after
+		     strtoul call.  */
+		  DIAG_PUSH_NEEDS_COMMENT_CLANG;
+		  DIAG_IGNORE_NEEDS_COMMENT_CLANG (13, "-Wsometimes-uninitialized");
 		  if (IN6_IS_ADDR_V4MAPPED (&prefix)
 		      && (cp == NULL
 			  || (bits = strtoul (cp, &endp, 10)) != ULONG_MAX
@@ -2056,6 +2066,7 @@ gaiconf_init (void)
 			  goto no_file;
 			}
 		    }
+		  DIAG_POP_NEEDS_COMMENT_CLANG;
 		}
 	      else if (inet_pton (AF_INET, val1, &prefix.s6_addr32[3])
 		       && (cp == NULL
-- 
2.39.3