Copyright year updates (things touched in 2016)

[exim.git] / src / src / string.c

diff --git a/src/src/string.c b/src/src/string.c
index a3fbc4ea577999f9aedd1721fd5420480600a10a..db54a094b789a90e2f1d721c8b06ebbe426c8c53 100644 (file)
--- a/src/src/string.c
+++ b/src/src/string.c
@@ -2,7 +2,7 @@
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
-/* Copyright (c) University of Cambridge 1995 - 2015 */
+/* Copyright (c) University of Cambridge 1995 - 2016 */
 /* See the file NOTICE for conditions of use and distribution. */
 
 /* Miscellaneous string-handling functions. Some are not required for
@@ -717,8 +717,9 @@ uschar buffer[STRING_SPRINTF_BUFFER_SIZE];
 va_start(ap, format);
 if (!string_vformat(buffer, sizeof(buffer), format, ap))
   log_write(0, LOG_MAIN|LOG_PANIC_DIE,
-    "string_sprintf expansion was longer than " SIZE_T_FMT " (%s)",
-    sizeof(buffer), format);
+    "string_sprintf expansion was longer than " SIZE_T_FMT
+    "; format string was (%s)\nexpansion started '%.32s'",
+    sizeof(buffer), format, buffer);
 va_end(ap);
 return string_copy(buffer);
 }
@@ -912,7 +913,7 @@ sep_is_special = iscntrl(sep);
 
 if (buffer != NULL)
   {
-  register int p = 0;
+  int p = 0;
   for (; *s != 0; s++)
     {
     if (*s == sep && (*(++s) != sep || sep_is_special)) break;
@@ -969,7 +970,7 @@ return buffer;
 
 #ifndef COMPILE_UTILITY
 /************************************************
-*      Add element to seperated list           *
+*      Add element to separated list           *
 ************************************************/
 /* This function is used to build a list, returning
 an allocated null-terminated growable string. The
@@ -1085,7 +1086,9 @@ Returns:   pointer to the start of the string, changed if copied for expansion.
            Note that a NUL is not added, though space is left for one. This is
            because string_cat() is often called multiple times to build up a
            string - there's no point adding the NUL till the end.
+
 */
+/* coverity[+alloc] */
 
 uschar *
 string_cat(uschar *string, int *size, int *ptr, const uschar *s, int count)
@@ -1131,8 +1134,14 @@ if (p + count >= *size)
 
 /* Because we always specify the exact number of characters to copy, we can
 use memcpy(), which is likely to be more efficient than strncopy() because the
-latter has to check for zero bytes. */
+latter has to check for zero bytes.
+
+The Coverity annotation deals with the lack of correlated variable tracking;
+common use is a null string and zero size and pointer, on first use for a
+string being built. The "if" above then allocates, but Coverity assume that
+the "if" might not happen and whines for a null-deref done by the memcpy(). */
 
+/* coverity[deref_parm_field_in_call] */
 memcpy(string + p, s, count);
 *ptr = p + count;
 return string;
@@ -1517,6 +1526,7 @@ specified messages. If it does, the message just gets truncated, and there
 doesn't seem much we can do about that. */
 
 (void)string_vformat(buffer+15, sizeof(buffer) - 15, format, ap);
+va_end(ap);
 
 return (eno == EACCES)?
   string_sprintf("%s: %s (euid=%ld egid=%ld)", buffer, strerror(eno),
@@ -1552,7 +1562,7 @@ uschar * s;
 s = addr->prefix;
 if (testflag(addr, af_include_affixes) && s)
   {
-#ifdef EXPERIMENTAL_INTERNATIONAL
+#ifdef SUPPORT_I18N
   if (testflag(addr, af_utf8_downcvt))
     s = string_localpart_utf8_to_alabel(s, NULL);
 #endif
@@ -1560,7 +1570,7 @@ if (testflag(addr, af_include_affixes) && s)
   }
 
 s = addr->local_part;
-#ifdef EXPERIMENTAL_INTERNATIONAL
+#ifdef SUPPORT_I18N
 if (testflag(addr, af_utf8_downcvt))
   s = string_localpart_utf8_to_alabel(s, NULL);
 #endif
@@ -1569,7 +1579,7 @@ yield = string_cat(yield, sizeptr, ptrptr, s, Ustrlen(s));
 s = addr->suffix;
 if (testflag(addr, af_include_affixes) && s)
   {
-#ifdef EXPERIMENTAL_INTERNATIONAL
+#ifdef SUPPORT_I18N
   if (testflag(addr, af_utf8_downcvt))
     s = string_localpart_utf8_to_alabel(s, NULL);
 #endif
@@ -1640,7 +1650,7 @@ else
     yield = string_get_localpart(addr, yield, &size, &ptr);
     yield = string_cat(yield, &size, &ptr, US"@", 1);
     s = addr->domain;
-#ifdef EXPERIMENTAL_INTERNATIONAL
+#ifdef SUPPORT_I18N
     if (testflag(addr, af_utf8_downcvt))
       s = string_localpart_utf8_to_alabel(s, NULL);
 #endif
@@ -1706,6 +1716,17 @@ return yield;
 #endif  /* COMPILE_UTILITY */
 
 
+#ifndef COMPILE_UTILITY
+/* qsort(3), currently used to sort the environment variables
+for -bP environment output, needs a function to compare two pointers to string
+pointers. Here it is. */
+
+int
+string_compare_by_pointer(const void *a, const void *b)
+{
+return Ustrcmp(* CUSS a, * CUSS b);
+}
+#endif /* COMPILE_UTILITY */