aboutsummaryrefslogtreecommitdiff
path: root/libgfortran/io
diff options
context:
space:
mode:
Diffstat (limited to 'libgfortran/io')
-rw-r--r--libgfortran/io/close.c13
-rw-r--r--libgfortran/io/format.c10
-rw-r--r--libgfortran/io/open.c10
-rw-r--r--libgfortran/io/read.c2
4 files changed, 27 insertions, 8 deletions
diff --git a/libgfortran/io/close.c b/libgfortran/io/close.c
index 8122311..41d278c 100644
--- a/libgfortran/io/close.c
+++ b/libgfortran/io/close.c
@@ -84,8 +84,17 @@ st_close (st_parameter_close *clp)
if (u != NULL)
{
- if (close_share (u) < 0)
- generate_error (&clp->common, LIBERROR_OS, "Problem in CLOSE");
+ if (u->s == NULL)
+ {
+ if (u->unit_number < 0)
+ generate_error (&clp->common, LIBERROR_BAD_UNIT,
+ "Unit number is negative with no associated file");
+ library_end ();
+ return;
+ }
+ else
+ if (close_share (u) < 0)
+ generate_error (&clp->common, LIBERROR_OS, "Problem in CLOSE");
if (u->flags.status == STATUS_SCRATCH)
{
if (status == CLOSE_KEEP)
diff --git a/libgfortran/io/format.c b/libgfortran/io/format.c
index eef1d34..87e21a9 100644
--- a/libgfortran/io/format.c
+++ b/libgfortran/io/format.c
@@ -1235,9 +1235,9 @@ parse_format_list (st_parameter_dt *dtp, bool *seen_dd)
default:
/* Assume a missing comma with -std=legacy, GNU extension. */
- if (compile_options.warn_std == 0)
- goto format_item_1;
- format_error (dtp, tail, comma_missing);
+ if (compile_options.warn_std != 0)
+ fmt->error = comma_missing;
+ goto format_item_1;
}
/* Optional comma is a weird between state where we've just finished
@@ -1252,7 +1252,7 @@ parse_format_list (st_parameter_dt *dtp, bool *seen_dd)
case FMT_RPAREN:
goto finished;
- default: /* Assume that we have another format item */
+ default: /* Assume that we have another format item */
fmt->saved_token = t;
break;
}
@@ -1419,7 +1419,7 @@ parse_format (st_parameter_dt *dtp)
else
fmt->error = "Missing initial left parenthesis in format";
- if (format_cache_ok)
+ if (format_cache_ok && !fmt->error)
save_parsed_format (dtp);
else
dtp->u.p.format_not_saved = 1;
diff --git a/libgfortran/io/open.c b/libgfortran/io/open.c
index 06ddf7f..e9fb0a7 100644
--- a/libgfortran/io/open.c
+++ b/libgfortran/io/open.c
@@ -912,6 +912,16 @@ st_open (st_parameter_open *opp)
library_end ();
return;
}
+
+ if (u->s == NULL)
+ {
+ unlock_unit (u);
+ generate_error (&opp->common, LIBERROR_BAD_OPTION,
+ "Unit number is negative and unit was not already "
+ "opened with OPEN(NEWUNIT=...)");
+ library_end ();
+ return;
+ }
}
if (u == NULL)
diff --git a/libgfortran/io/read.c b/libgfortran/io/read.c
index a8a6a69..e34d31b 100644
--- a/libgfortran/io/read.c
+++ b/libgfortran/io/read.c
@@ -1375,7 +1375,7 @@ exponent:
/* At this point a digit string is required. We calculate the value
of the exponent in order to take account of the scale factor and
- the d parameter before explict conversion takes place. */
+ the d parameter before explicit conversion takes place. */
if (w == 0)
{