Initialize for bash

2024-02-05 15:40:59 +08:00 · 2024-02-05 15:40:59 +08:00 · e367703cd4
commit e367703cd4
44 changed files with 5010 additions and 0 deletions
--- a/bash-4.3-pathtemp.patch
+++ b/bash-4.3-pathtemp.patch
@ -0,0 +1,97 @@
+---
+ lib/sh/tmpfile.c |   49 ++++++++++++++++++++++++++++++++++++++++++++++++-
+ 1 file changed, 48 insertions(+), 1 deletion(-)
+
+--- lib/sh/tmpfile.c
+++ lib/sh/tmpfile.c	2018-01-24 12:38:42.410481352 +0000
+@@ -36,6 +36,14 @@
+ #include <stdio.h>
+ #include <errno.h>
+ 
+#if defined(__linux__)
+#  include <sys/statfs.h>
+#  include <unistd.h>
+#  ifndef  TMPFS_MAGIC
+#    define TMPFS_MAGIC 0x01021994
+#  endif
+#endif
+
+ #include <shell.h>
+ 
+ #ifndef errno
+@@ -65,6 +73,8 @@ static unsigned long filenum = 1L;
+ static char *
+ get_sys_tmpdir ()
+ {
+  static int doshm;
+
+   if (sys_tmpdir)
+     return sys_tmpdir;
+ 
+@@ -91,6 +101,31 @@ get_sys_tmpdir ()
+   return sys_tmpdir;
+ }
+ 
+#if defined(__linux__)
+static int
+emergency_sys_tmpdir ()
+{
+  static char *shm = "/dev/shm";
+  static size_t pgsz;
+  struct statfs fs;
+  static int doshm;
+
+  if (getuid() != 0)
+    return 0;
+
+  if (doshm)
+    return 0;
+
+  doshm++;
+
+  if (statfs(shm, &fs) < 0 || fs.f_type != TMPFS_MAGIC || eaccess(shm, W_OK|X_OK))
+    return 0;
+	  
+  sys_tmpdir = shm;
+  return 1;
+}
+#endif
+
+ static char *
+ get_tmpdir (flags)
+      int flags;
+@@ -186,7 +221,8 @@ sh_mktmpfd (nameroot, flags, namep)
+ {
+   char *filename, *tdir, *lroot;
+   int fd, tdlen;
+-  
+
+enospace:
+   filename = (char *)xmalloc (PATH_MAX + 1);
+   tdir = get_tmpdir (flags);
+   tdlen = strlen (tdir);
+@@ -201,6 +237,10 @@ sh_mktmpfd (nameroot, flags, namep)
+       free (filename);
+       filename = NULL;
+     }
+
+  if (fd < 0 && errno == ENOSPC && emergency_sys_tmpdir())
+    goto enospace;
+
+   if (namep)
+     *namep = filename;
+   return fd;
+@@ -219,6 +259,13 @@ sh_mktmpfd (nameroot, flags, namep)
+     }
+   while (fd < 0 && errno == EEXIST);
+ 
+  if (fd < 0 && errno == ENOSPC && emergency_sys_tmpdir())
+    {
+      free (filename);
+      filename = NULL;
+      goto enospace;
+    }
+
+   if (namep)
+     *namep = filename;
+   else