[Pkg-gnupg-commit] [gnupg2] 150/205: common: Use new function to print a failure of xtrymalloc.

[Daniel Kahn Gillmor]

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dkg pushed a commit to branch experimental
in repository gnupg2.

commit 8776abbe02935e720018f3ef6ffd48f21435ff8b
Author: Werner Koch <wk at gnupg.org>
Date:   Mon Apr 25 17:26:57 2016 +0200

    common: Use new function to print a failure of xtrymalloc.
    
    * common/miscellaneous.c (xoutofcore): New.
    * common/strlist.c (append_to_strlist): Use instead of abort.
    (append_to_strlist_try): Use xtrymalloc instead of xmalloc.
    
    Signed-off-by: Werner Koch <wk at gnupg.org>
---
 common/miscellaneous.c | 11 +++++++++++
 common/strlist.c       |  6 +++---
 common/util.h          |  3 +++
 3 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/common/miscellaneous.c b/common/miscellaneous.c
index ec36f08..8d9a7aa 100644
--- a/common/miscellaneous.c
+++ b/common/miscellaneous.c
@@ -106,6 +106,17 @@ setup_libgcrypt_logging (void)
 }
 
 
+/* Print an out of core message and let the process die.  The printed
+ * error is taken from ERRNO.  */
+void
+xoutofcore (void)
+{
+  gpg_error_t err = gpg_error_from_syserror ();
+  log_fatal (_("error allocating enough memory: %s\n"), gpg_strerror (err));
+  abort (); /* Never called; just to make the compiler happy.  */
+}
+
+
 /* A wrapper around gcry_cipher_algo_name to return the string
    "AES-128" instead of "AES".  Given that we have an alias in
    libgcrypt for it, it does not harm to too much to return this other
diff --git a/common/strlist.c b/common/strlist.c
index 319d034..d4f8644 100644
--- a/common/strlist.c
+++ b/common/strlist.c
@@ -128,8 +128,8 @@ append_to_strlist( strlist_t *list, const char *string )
 {
   strlist_t sl;
   sl = append_to_strlist_try (list, string);
-  if (sl == NULL)
-    abort ();
+  if (!sl)
+    xoutofcore ();
   return sl;
 }
 
@@ -140,7 +140,7 @@ append_to_strlist_try (strlist_t *list, const char *string)
 {
     strlist_t r, sl;
 
-    sl = xmalloc( sizeof *sl + strlen(string));
+    sl = xtrymalloc( sizeof *sl + strlen(string));
     if (sl == NULL)
       return NULL;
 
diff --git a/common/util.h b/common/util.h
index 466c519..84a15ab 100644
--- a/common/util.h
+++ b/common/util.h
@@ -263,6 +263,9 @@ const char *gnupg_messages_locale_name (void);
    logging subsystem. */
 void setup_libgcrypt_logging (void);
 
+/* Print an out of core emssage and die.  */
+void xoutofcore (void);
+
 /* Same as estream_asprintf but die on memory failure.  */
 char *xasprintf (const char *fmt, ...) GPGRT_ATTR_PRINTF(1,2);
 /* This is now an alias to estream_asprintf.  */

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