[gawk-diffs] [SCM] gawk branch, extgawk, updated. dce685318154027d30f8dad8df796e1e12436765

[Andrew J. Schorr]

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       via  dce685318154027d30f8dad8df796e1e12436765 (commit)
      from  913a0f88f5cfff1f139bb05ffd4a0a9a516ebdde (commit)

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- Log -----------------------------------------------------------------
http://git.sv.gnu.org/cgit/gawk.git/commit/?id=dce685318154027d30f8dad8df796e1e12436765

commit dce685318154027d30f8dad8df796e1e12436765
Author: Andrew J. Schorr <address@hidden>
Date:   Fri Jul 27 12:40:01 2012 -0400

    Fix last: must initialize errno to 0 before calling readdir.

diff --git a/extension/ChangeLog b/extension/ChangeLog
index 2023a76..a46e2ce 100644
--- a/extension/ChangeLog
+++ b/extension/ChangeLog
@@ -1,5 +1,10 @@
 2012-07-27         Andrew J. Schorr     <address@hidden>
 
+       * readdir.c (dir_get_record): Need to set errno to 0 before calling
+       readdir, since readdir sets errno only on failure, not on EOF.
+
+2012-07-27         Andrew J. Schorr     <address@hidden>
+
        * readdir.c (dir_get_record): If readdir fails, set errcode.  Otherwise,
        don't bother to set errcode.
 
diff --git a/extension/readdir.c b/extension/readdir.c
index f858056..2818d60 100644
--- a/extension/readdir.c
+++ b/extension/readdir.c
@@ -139,6 +139,10 @@ dir_get_record(char **out, struct iobuf_public *iobuf, int 
*errcode)
        set_RT((awk_value_t *) & null_val);
        the_dir = (open_directory_t *) iobuf->opaque;
        dp = the_dir->dp;
+       /*
+        * Initialize errno, since readdir does not set it to zero on EOF.
+        */
+       errno = 0;
        dirent = readdir(dp);
        if (dirent == NULL) {
                *errcode = errno;       /* in case there was an error */

-----------------------------------------------------------------------

Summary of changes:
 extension/ChangeLog |    5 +++++
 extension/readdir.c |    4 ++++
 2 files changed, 9 insertions(+), 0 deletions(-)


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