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-rw-r--r--release_docs/RELEASE.txt3
-rw-r--r--tools/lib/h5tools_str.c17
2 files changed, 18 insertions, 2 deletions
diff --git a/release_docs/RELEASE.txt b/release_docs/RELEASE.txt
index bf96077..91a92e7 100644
--- a/release_docs/RELEASE.txt
+++ b/release_docs/RELEASE.txt
@@ -500,6 +500,9 @@ Bug Fixes since HDF5-1.8.0 release
Tools
-----
+ - Fixed h5dump for skipping some values for long array type dataset on
+ Windows. This issue only occurred on Windows due to the different
+ return behavior from _vsnprintf() funtion. Bug#2161 (JKM 2011/3/3)
- Fixed h5dump for skipping array indices every certain number
when the array type dataset is relatively big. The certain number
varies according to the size of array. Bug#2092 (JKM 2011/2/15).
diff --git a/tools/lib/h5tools_str.c b/tools/lib/h5tools_str.c
index 8c9960f..c1c6d72 100644
--- a/tools/lib/h5tools_str.c
+++ b/tools/lib/h5tools_str.c
@@ -123,6 +123,7 @@ char *
h5tools_str_append(h5tools_str_t *str/*in,out*/, const char *fmt, ...)
{
va_list ap;
+ hbool_t isReallocated = FALSE;
/* Make sure we have some memory into which to print */
if (!str->s || str->nalloc <= 0) {
@@ -148,12 +149,23 @@ h5tools_str_append(h5tools_str_t *str/*in,out*/, const char *fmt, ...)
nchars = HDvsnprintf(str->s + str->len, avail, fmt, ap);
va_end(ap);
- if (nchars < 0) {
+ /* Note: HDvsnprintf() behaves differently on Windows as Unix, when
+ * buffer is smaller than source string. On Unix, this function
+ * returns length of the source string and copy string upto the
+ * buffer size with NULL at the end of the buffer. However on
+ * Windows with the same condition, this function returns -1 and
+ * doesn't add NULL at the end of the buffer.
+ * Because of this different return results, isReallocated variable
+ * is used to handle when HDvsnprintf() returns -1 on Windows due
+ * to lack of buffer size, so try one more time after realloc more
+ * buffer size before return NULL.
+ */
+ if (nchars < 0 && isReallocated == TRUE) {
/* failure, such as bad format */
return NULL;
}
- if ((size_t) nchars >= avail || (0 == nchars && (strcmp(fmt, "%s")))) {
+ if (nchars < 0 || (size_t) nchars >= avail || (0 == nchars && (strcmp(fmt, "%s")))) {
/* Truncation return value as documented by C99, or zero return value with either of the
* following conditions, each of which indicates that the proper C99 return value probably
* should have been positive when the format string is
@@ -165,6 +177,7 @@ h5tools_str_append(h5tools_str_t *str/*in,out*/, const char *fmt, ...)
str->s = realloc(str->s, newsize);
assert(str->s);
str->nalloc = newsize;
+ isReallocated = TRUE;
}
else {
/* Success */