Restore string after function call.

[wget] / src / utils.c

diff --git a/src/utils.c b/src/utils.c
index 920f3b54482f0232c4a26b62e988e19a516686e2..15e3f89ba392b726050e6ba7dccc4af502bca4a7 100644 (file)
--- a/src/utils.c
+++ b/src/utils.c
@@ -88,6 +88,32 @@ as that of the covered work.  */
 #include "test.h"
 #endif 
 
+static void
+memfatal (const char *context, long attempted_size)
+{
+  /* Make sure we don't try to store part of the log line, and thus
+     call malloc.  */
+  log_set_save_context (false);
+
+  /* We have different log outputs in different situations:
+     1) output without bytes information
+     2) output with bytes information  */
+  if (attempted_size == UNKNOWN_ATTEMPTED_SIZE)
+    {
+      logprintf (LOG_ALWAYS,
+                 _("%s: %s: Failed to allocate enough memory; memory exhausted.\n"),
+                 exec_name, context);
+    }
+  else
+    {
+      logprintf (LOG_ALWAYS,
+                 _("%s: %s: Failed to allocate %ld bytes; memory exhausted.\n"),
+                 exec_name, context, attempted_size);
+    }
+
+  exit (1);
+}
+
 /* Utility function: like xstrdup(), but also lowercases S.  */
 
 char *
@@ -159,6 +185,13 @@ sepstring (const char *s)
    vsnprintf until the correct size is found.  Since Wget also ships a
    fallback implementation of vsnprintf, this should be portable.  */
 
+/* Constant is using for limits memory allocation for text buffer.
+   Applicable in situation when: vasprintf is not available in the system 
+   and vsnprintf return -1 when long line is truncated (in old versions of
+   glibc and in other system where C99 doesn`t support) */
+
+#define FMT_MAX_LENGTH 1048576
+
 char *
 aprintf (const char *fmt, ...)
 {
@@ -171,7 +204,8 @@ aprintf (const char *fmt, ...)
   ret = vasprintf (&str, fmt, args);
   va_end (args);
   if (ret < 0 && errno == ENOMEM)
-    abort ();                   /* for consistency with xmalloc/xrealloc */
+    memfatal ("aprintf", UNKNOWN_ATTEMPTED_SIZE);  /* for consistency
+                                                      with xmalloc/xrealloc */
   else if (ret < 0)
     return NULL;
   return str;
@@ -201,8 +235,21 @@ aprintf (const char *fmt, ...)
       /* Else try again with a larger buffer. */
       if (n > -1)               /* C99 */
         size = n + 1;           /* precisely what is needed */
+      else if (size >= FMT_MAX_LENGTH)  /* We have a huge buffer, */
+        {                               /* maybe we have some wrong
+                                           format string? */
+          logprintf (LOG_ALWAYS, 
+                     _("%s: aprintf: text buffer is too big (%ld bytes), "
+                       "aborting.\n"),
+                     exec_name, size);  /* printout a log message */
+          abort ();                     /* and abort... */
+        }
       else
-        size <<= 1;             /* twice the old size */
+        {
+          /* else, we continue to grow our
+           * buffer: Twice the old size. */
+          size <<= 1;
+        }
       str = xrealloc (str, size);
     }
 #endif /* not HAVE_VASPRINTF */
@@ -220,7 +267,7 @@ concat_strings (const char *str0, ...)
 
   const char *next_str;
   int total_length = 0;
-  int argcount;
+  size_t argcount;
 
   /* Calculate the length of and allocate the resulting string. */
 
@@ -301,7 +348,7 @@ fork_to_background (void)
   /* Whether we arrange our own version of opt.lfilename here.  */
   bool logfile_changed = false;
 
-  if (!opt.lfilename)
+  if (!opt.lfilename && (!opt.quiet || opt.server_response))
     {
       /* We must create the file immediately to avoid either a race
          condition (which arises from using unique_name and failing to
@@ -327,7 +374,7 @@ fork_to_background (void)
       /* parent, no error */
       printf (_("Continuing in background, pid %d.\n"), (int) pid);
       if (logfile_changed)
-        printf (_("Output will be written to `%s'.\n"), opt.lfilename);
+        printf (_("Output will be written to %s.\n"), quote (opt.lfilename));
       exit (0);                 /* #### should we use _exit()? */
     }
 
@@ -373,8 +420,8 @@ remove_link (const char *file)
       DEBUGP (("Unlinking %s (symlink).\n", file));
       err = unlink (file);
       if (err != 0)
-        logprintf (LOG_VERBOSE, _("Failed to unlink symlink `%s': %s\n"),
-                   file, strerror (errno));
+        logprintf (LOG_VERBOSE, _("Failed to unlink symlink %s: %s\n"),
+                   quote (file), strerror (errno));
     }
   return err;
 }
@@ -1339,7 +1386,7 @@ human_readable (HR_NUMTYPE n)
       'E',                      /* exabyte,  2^60 bytes */
     };
   static char buf[8];
-  int i;
+  size_t i;
 
   /* If the quantity is smaller than 1K, just print it. */
   if (n < 1024)
@@ -2175,7 +2222,17 @@ test_dir_matches_p()
     { { "/somedir", "/someotherdir", NULL }, "anotherdir", false },
     { { "/somedir", "/*otherdir", NULL }, "anotherdir", true },
     { { "/somedir/d1", "/someotherdir", NULL }, "somedir/d1", true },
+    { { "*/*d1", "/someotherdir", NULL }, "somedir/d1", true },
     { { "/somedir/d1", "/someotherdir", NULL }, "d1", false },
+    { { "!COMPLETE", NULL, NULL }, "!COMPLETE", true },
+    { { "*COMPLETE", NULL, NULL }, "!COMPLETE", true },
+    { { "*/!COMPLETE", NULL, NULL }, "foo/!COMPLETE", true },
+    { { "*COMPLETE", NULL, NULL }, "foo/!COMPLETE", false },
+    { { "*/*COMPLETE", NULL, NULL }, "foo/!COMPLETE", true },
+    { { "/dir with spaces", NULL, NULL }, "dir with spaces", true },
+    { { "/dir*with*spaces", NULL, NULL }, "dir with spaces", true },
+    { { "/Tmp/has", NULL, NULL }, "/Tmp/has space", false },
+    { { "/Tmp/has", NULL, NULL }, "/Tmp/has,comma", false },
   };
   
   for (i = 0; i < countof(test_array); ++i)