61 lines
1.8 KiB
Diff
61 lines
1.8 KiB
Diff
Partial backport of the following commit, restricted to the
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netgroup changes:
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commit c6dfed243e0310bc3294c0fdf1816fceab024e9b
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Author: Roland McGrath <roland@hack.frob.com>
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Date: Wed Oct 22 13:17:20 2014 -0700
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Rework some nscd code not to use variable-length struct types.
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diff --git a/inet/netgroup.h b/inet/netgroup.h
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index f3797a698d126157..fa1732762e32c2c0 100644
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--- a/inet/netgroup.h
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+++ b/inet/netgroup.h
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@@ -26,7 +26,7 @@
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struct name_list
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{
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struct name_list *next;
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- char name[0];
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+ char name[];
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};
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diff --git a/nscd/netgroupcache.c b/nscd/netgroupcache.c
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index 7ee0c284ed58d1e3..7d7269a8edf1b99d 100644
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--- a/nscd/netgroupcache.c
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+++ b/nscd/netgroupcache.c
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@@ -21,6 +21,7 @@
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#include <errno.h>
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#include <libintl.h>
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#include <stdbool.h>
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+#include <stdlib.h>
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#include <unistd.h>
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#include <sys/mman.h>
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@@ -136,11 +137,8 @@ addgetnetgrentX (struct database_dyn *db, int fd, request_header *req,
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char *buffer = NULL;
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size_t nentries = 0;
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size_t group_len = strlen (key) + 1;
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- union
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- {
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- struct name_list elem;
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- char mem[sizeof (struct name_list) + group_len];
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- } first_needed;
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+ struct name_list *first_needed
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+ = alloca (sizeof (struct name_list) + group_len);
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if (netgroup_database == NULL
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&& __nss_database_lookup ("netgroup", NULL, NULL, &netgroup_database))
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@@ -153,9 +151,9 @@ addgetnetgrentX (struct database_dyn *db, int fd, request_header *req,
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memset (&data, '\0', sizeof (data));
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buffer = xmalloc (buflen);
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- first_needed.elem.next = &first_needed.elem;
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- memcpy (first_needed.elem.name, key, group_len);
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- data.needed_groups = &first_needed.elem;
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+ first_needed->next = first_needed;
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+ memcpy (first_needed->name, key, group_len);
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+ data.needed_groups = first_needed;
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while (data.needed_groups != NULL)
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{
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