diff options
Diffstat (limited to 'gnu/packages/patches/patch-hurd-path-max.patch')
| -rw-r--r-- | gnu/packages/patches/patch-hurd-path-max.patch | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/gnu/packages/patches/patch-hurd-path-max.patch b/gnu/packages/patches/patch-hurd-path-max.patch new file mode 100644 index 0000000000..81e37930c2 --- /dev/null +++ b/gnu/packages/patches/patch-hurd-path-max.patch @@ -0,0 +1,48 @@ +See <http://lists.gnu.org/archive/html/bug-patch/2015-06/msg00009.html> + +From 0507dfad5f060161f01840067e1bb1615257b636 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Ludovic=20Court=C3=A8s?= <ludo@gnu.org> +Date: Mon, 8 Jun 2015 17:27:56 +0200 +Subject: [PATCH] Do not rely on PATH_MAX when reading a symlink target. + +* src/util.c (move_file, copy_file): Use 'fromst->st_size + 1' and +'tost->st_size + 1' for the allocation, and 'fromst->st_size' and +'tost->st_size' instead of PATH_MAX. Fixes compilation on GNU/Hurd. +--- + src/util.c | 8 ++++---- + 1 file changed, 4 insertions(+), 4 deletions(-) + +diff --git a/src/util.c b/src/util.c +index 82a7e37..c4c0f9d 100644 +--- a/src/util.c ++++ b/src/util.c +@@ -460,12 +460,12 @@ move_file (char const *from, bool *from_needs_removal, + + /* FROM contains the contents of the symlink we have patched; need + to convert that back into a symlink. */ +- char *buffer = xmalloc (PATH_MAX); ++ char *buffer = xmalloc (fromst->st_size + 1); + int fd, size = 0, i; + + if ((fd = safe_open (from, O_RDONLY | O_BINARY, 0)) < 0) + pfatal ("Can't reopen file %s", quotearg (from)); +- while ((i = read (fd, buffer + size, PATH_MAX - size)) > 0) ++ while ((i = read (fd, buffer + size, fromst->st_size - size)) > 0) + size += i; + if (i != 0 || close (fd) != 0) + read_fatal (); +@@ -610,9 +610,9 @@ copy_file (char const *from, char const *to, struct stat *tost, + + if (S_ISLNK (mode)) + { +- char *buffer = xmalloc (PATH_MAX); ++ char *buffer = xmalloc (tost->st_size + 1); + +- if (safe_readlink (from, buffer, PATH_MAX) < 0) ++ if (safe_readlink (from, buffer, tost->st_size) < 0) + pfatal ("Can't read %s %s", "symbolic link", from); + if (safe_symlink (buffer, to) != 0) + pfatal ("Can't create %s %s", "symbolic link", to); +-- +2.4.2 + |