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authorTom Lane <tgl@sss.pgh.pa.us>2010-03-03 20:31:22 +0000
committerTom Lane <tgl@sss.pgh.pa.us>2010-03-03 20:31:22 +0000
commit6fe45c96653632c7c77816b67680c8a6d2fcf789 (patch)
tree7fe6163d754831204f36dcc19763e27398ee6893
parente2524c518063428ed6a79c1b6d78f06a0eb251f7 (diff)
Fix a couple of places that would loop forever if attempts to read a stdio file
set ferror() but never set feof(). This is known to be the case for recent glibc when trying to read a directory as a file, and might be true for other platforms/cases too. Per report from Ed L. (There is more that we ought to do about his report, but this is one easily identifiable issue.)
-rw-r--r--src/backend/libpq/hba.c4
-rw-r--r--src/interfaces/libpq/fe-connect.c4
2 files changed, 4 insertions, 4 deletions
diff --git a/src/backend/libpq/hba.c b/src/backend/libpq/hba.c
index 181e0c67b8d..b8b5c5eb68a 100644
--- a/src/backend/libpq/hba.c
+++ b/src/backend/libpq/hba.c
@@ -10,7 +10,7 @@
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/libpq/hba.c,v 1.164 2008/01/01 19:45:49 momjian Exp $
+ * $PostgreSQL: pgsql/src/backend/libpq/hba.c,v 1.164.2.1 2010/03/03 20:31:22 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -412,7 +412,7 @@ tokenize_file(const char *filename, FILE *file,
*lines = *line_nums = NIL;
- while (!feof(file))
+ while (!feof(file) && !ferror(file))
{
buf = next_token_expand(filename, file);
diff --git a/src/interfaces/libpq/fe-connect.c b/src/interfaces/libpq/fe-connect.c
index 33cd597eaa0..627b091753a 100644
--- a/src/interfaces/libpq/fe-connect.c
+++ b/src/interfaces/libpq/fe-connect.c
@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/interfaces/libpq/fe-connect.c,v 1.356.2.1 2008/10/23 16:17:22 mha Exp $
+ * $PostgreSQL: pgsql/src/interfaces/libpq/fe-connect.c,v 1.356.2.2 2010/03/03 20:31:22 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -3755,7 +3755,7 @@ PasswordFromFile(char *hostname, char *port, char *dbname, char *username)
if (fp == NULL)
return NULL;
- while (!feof(fp))
+ while (!feof(fp) && !ferror(fp))
{
char *t = buf,
*ret;