![Matt Weber](/assets/img/avatar_default.png)
* Added license hash files * Updated site to new GNU location * Reconfig required to use newer automake * Dropped patch for 01_array_initialize.patch as it was fixed * Refactored patches for makeinfo variable and write io errs * Added new dc fix exit code patch from Debian sid * Added new libmath offline gen cross-compile patch from Yocto Upstream patch status: Pending Signed-off-by: Matthew Weber <matthew.weber@rockwellcollins.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
755 lines
20 KiB
Diff
755 lines
20 KiB
Diff
From af96fb92052c307818eefa4b687f964f1e3f542e Mon Sep 17 00:00:00 2001
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From: Matt Weber <matthew.weber@rockwellcollins.com>
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Date: Thu, 12 Sep 2019 15:04:35 -0500
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Subject: [PATCH] notice read and write errors on input and output
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Quoting from the bug report:
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bc (1.06-19ubuntu1) dapper; urgency=low
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* Make dc notice read and write errors on its input and output.
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I grepped for mentions of the strings `putc', `print', `getc',
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`FILE', `stdin', `stdout' and `stderr' and added calls to new
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error-checking functions unless it was clear from the
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immediately-surrounding code that the program was exiting
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nonzero, or would exit nonzero if the call failed. I ignored
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hits in lib/getopt*, which seems to pervasively ignore write
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errors when printing usage messages, in the hope that these
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were correct. I _think_ I got them all. -iwj.
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-- Ian Jackson <iwj@ubuntu.com> Tue, 4 Apr 2006 17:21:02 +0100
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Upsteam:
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https://sources.debian.org/patches/bc/1.07.1-2/05_notice_read_write_errors.diff/
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[Reformatted to GIT for 1.0.7.1 by Matt W]
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Updated by Ryan Kavanagh <rak@debian.org> for 1.0.7.1 on 26 July 2017.
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Author: Ian Jackson <iwj@ubuntu.com>
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Origin: other
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Bug-Debian: http://bugs.debian.org/488735
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Signed-off-by: Matthew Weber <matthew.weber@rockwellcollins.com>
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---
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bc/execute.c | 10 +++++++++-
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bc/main.c | 3 +++
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bc/sbc.y | 2 ++
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bc/scan.c | 2 ++
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bc/scan.l | 3 +++
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bc/util.c | 15 ++++++++++++--
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dc/dc.c | 3 +++
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dc/eval.c | 55 +++++++++++++++++++++++++++++++++++++++-------------
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dc/misc.c | 1 +
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dc/numeric.c | 9 +++++++++
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dc/stack.c | 11 ++++++++++-
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dc/string.c | 2 ++
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h/number.h | 11 +++++++----
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lib/number.c | 24 +++++++++++++++++++++++
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14 files changed, 129 insertions(+), 22 deletions(-)
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diff --git a/bc/execute.c b/bc/execute.c
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index 256e4b7..50eac49 100644
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--- a/bc/execute.c
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+++ b/bc/execute.c
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@@ -104,6 +104,7 @@ execute (void)
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}
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out_char ('\n');
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}
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+ checkferror_output(stdout);
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}
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#endif
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@@ -224,6 +225,7 @@ execute (void)
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}
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}
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fflush (stdout);
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+ checkferror_output(stdout);
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break;
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case 'R' : /* Return from function */
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@@ -259,6 +261,7 @@ execute (void)
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if (inst == 'W') out_char ('\n');
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store_var (4); /* Special variable "last". */
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fflush (stdout);
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+ checkferror_output(stdout);
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pop ();
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break;
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@@ -342,6 +345,7 @@ execute (void)
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case 'w' : /* Write a string to the output. */
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while ((ch = byte(&pc)) != '"') out_schar (ch);
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fflush (stdout);
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+ checkferror_output(stdout);
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break;
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case 'x' : /* Exchange Top of Stack with the one under the tos. */
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@@ -549,7 +553,10 @@ execute (void)
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{
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signal (SIGINT, use_quit);
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if (had_sigint)
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- printf ("\ninterrupted execution.\n");
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+ {
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+ printf ("\ninterrupted execution.\n");
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+ checkferror_output(stdout);
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+ }
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}
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}
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@@ -584,6 +591,7 @@ input_char (void)
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out_col = 0; /* Saw a new line */
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}
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}
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+ checkferror_input(stdin);
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/* Classify and preprocess the input character. */
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if (isdigit(in_ch))
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diff --git a/bc/main.c b/bc/main.c
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index 012075c..c96207b 100644
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--- a/bc/main.c
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+++ b/bc/main.c
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@@ -353,6 +353,9 @@ use_quit (int sig)
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errno = save;
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#else
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write (1, "\n(interrupt) Exiting bc.\n", 26);
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+#ifdef READLINE
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+ rl_initialize (); /* Clear readline buffer */
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+#endif
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bc_exit(0);
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#endif
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}
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diff --git a/bc/sbc.y b/bc/sbc.y
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index 586686b..921ab1e 100644
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--- a/bc/sbc.y
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+++ b/bc/sbc.y
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@@ -86,7 +86,9 @@ program : /* empty */
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if (interactive && !quiet)
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{
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show_bc_version ();
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+ checkferror_output(stdout);
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welcome ();
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+ checkferror_output(stdout);
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}
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}
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| program input_item
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diff --git a/bc/scan.c b/bc/scan.c
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index b237f55..8dee4e9 100644
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--- a/bc/scan.c
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+++ b/bc/scan.c
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@@ -791,6 +791,7 @@ bcel_input (char *buf, yy_size_t *result, int max)
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if (bcel_len != 0)
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history (hist, &histev, H_ENTER, bcel_line);
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fflush (stdout);
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+ checkferror_output(stdout);
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}
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if (bcel_len <= max)
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@@ -863,6 +864,7 @@ rl_input (char *buf, int *result, int max)
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add_history (rl_line);
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rl_line[rl_len-1] = '\n';
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fflush (stdout);
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+ checkferror_output(stdout);
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}
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if (rl_len <= max)
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diff --git a/bc/scan.l b/bc/scan.l
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index eb2e2dd..79186bb 100644
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--- a/bc/scan.l
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+++ b/bc/scan.l
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@@ -99,6 +99,7 @@ bcel_input (char *buf, yy_size_t *result, int max)
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if (bcel_len != 0)
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history (hist, &histev, H_ENTER, bcel_line);
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fflush (stdout);
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+ checkferror_output(stdout);
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}
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if (bcel_len <= max)
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@@ -171,6 +172,7 @@ rl_input (char *buf, int *result, int max)
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add_history (rl_line);
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rl_line[rl_len-1] = '\n';
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fflush (stdout);
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+ checkferror_output(stdout);
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}
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if (rl_len <= max)
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@@ -295,6 +297,7 @@ limits return(Limits);
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if (c == EOF)
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{
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fprintf (stderr,"EOF encountered in a comment.\n");
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+ checkferror_output(stderr);
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break;
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}
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}
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diff --git a/bc/util.c b/bc/util.c
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index 8eba093..cacd796 100644
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--- a/bc/util.c
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+++ b/bc/util.c
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@@ -247,9 +247,10 @@ init_gen (void)
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continue_label = 0;
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next_label = 1;
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out_count = 2;
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- if (compile_only)
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+ if (compile_only) {
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printf ("@i");
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- else
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+ checkferror_output(stdout);
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+ } else
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init_load ();
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had_error = FALSE;
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did_gen = FALSE;
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@@ -272,6 +273,7 @@ generate (const char *str)
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printf ("\n");
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out_count = 0;
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}
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+ checkferror_output(stdout);
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}
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else
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load_code (str);
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@@ -289,6 +291,7 @@ run_code(void)
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if (compile_only)
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{
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printf ("@r\n");
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+ checkferror_output(stdout);
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out_count = 0;
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}
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else
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@@ -326,6 +329,7 @@ out_char (int ch)
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}
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putchar (ch);
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}
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+ checkferror_output(stdout);
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}
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/* Output routines: Write a character CH to the standard output.
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@@ -355,6 +359,7 @@ out_schar (int ch)
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}
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putchar (ch);
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}
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+ checkferror_output(stdout);
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}
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@@ -639,6 +644,7 @@ limits(void)
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#ifdef OLD_EQ_OP
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printf ("Old assignment operatiors are valid. (=-, =+, ...)\n");
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#endif
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+ checkferror_output(stdout);
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}
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/* bc_malloc will check the return value so all other places do not
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@@ -703,6 +709,7 @@ yyerror (str, va_alist)
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fprintf (stderr,"%s %d: ",name,line_no);
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vfprintf (stderr, str, args);
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fprintf (stderr, "\n");
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+ checkferror_output(stderr);
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had_error = TRUE;
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va_end (args);
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}
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@@ -743,6 +750,7 @@ ct_warn (mesg, va_alist)
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fprintf (stderr,"%s %d: Error: ",name,line_no);
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vfprintf (stderr, mesg, args);
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fprintf (stderr, "\n");
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+ checkferror_output(stderr);
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had_error = TRUE;
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}
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else
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@@ -755,6 +763,7 @@ ct_warn (mesg, va_alist)
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fprintf (stderr,"%s %d: (Warning) ",name,line_no);
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vfprintf (stderr, mesg, args);
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fprintf (stderr, "\n");
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+ checkferror_output(stderr);
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}
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va_end (args);
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}
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@@ -789,6 +798,7 @@ rt_error (mesg, va_alist)
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va_end (args);
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fprintf (stderr, "\n");
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+ checkferror_output(stderr);
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runtime_error = TRUE;
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}
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@@ -823,6 +833,7 @@ rt_warn (const char *mesg)
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va_end (args);
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fprintf (stderr, "\n");
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+ checkferror_output(stderr);
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}
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/* bc_exit: Make sure to reset the edit state. */
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diff --git a/dc/dc.c b/dc/dc.c
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index 6a2bb26..ccdb1c2 100644
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--- a/dc/dc.c
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+++ b/dc/dc.c
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@@ -59,6 +59,7 @@ static void
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bug_report_info DC_DECLVOID()
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{
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printf("Email bug reports to: bug-dc@gnu.org .\n");
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+ checkferror_output(stdout);
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}
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static void
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@@ -69,6 +70,7 @@ show_version DC_DECLVOID()
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This is free software; see the source for copying conditions. There is NO\n\
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warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE,\n\
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to the extent permitted by law.\n", DC_COPYRIGHT);
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+ checkferror_output(stdout);
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}
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/* your generic usage function */
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@@ -85,6 +87,7 @@ Usage: %s [OPTION] [file ...]\n\
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\n\
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", progname);
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bug_report_info();
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+ checkferror_output(f);
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}
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/* returns a pointer to one past the last occurance of c in s,
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diff --git a/dc/eval.c b/dc/eval.c
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index 05a3d9e..6c54e61 100644
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--- a/dc/eval.c
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+++ b/dc/eval.c
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@@ -97,12 +97,15 @@ static int input_pushback;
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static int
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input_fil DC_DECLVOID()
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{
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+ int c;
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if (input_pushback != EOF){
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- int c = input_pushback;
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+ c = input_pushback;
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input_pushback = EOF;
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return c;
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}
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- return getc(input_fil_fp);
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+ c = getc(input_fil_fp);
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+ checkferror_input(input_fil_fp);
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+ return c;
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}
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/* passed as an argument to dc_getnum */
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@@ -301,11 +304,13 @@ dc_func DC_DECLARG((c, peekc, negcmp))
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tmpint = dc_num2int(datum.v.number, DC_TOSS);
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if (2 <= tmpint && tmpint <= DC_IBASE_MAX)
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dc_ibase = tmpint;
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- else
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+ else {
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fprintf(stderr,
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"%s: input base must be a number \
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between 2 and %d (inclusive)\n",
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progname, DC_IBASE_MAX);
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+ checkferror_output(stderr);
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+ }
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}
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break;
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case 'k': /* set scale to value on top of stack */
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@@ -313,11 +318,12 @@ between 2 and %d (inclusive)\n",
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tmpint = -1;
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if (datum.dc_type == DC_NUMBER)
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tmpint = dc_num2int(datum.v.number, DC_TOSS);
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- if ( ! (tmpint >= 0) )
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+ if ( ! (tmpint >= 0) ) {
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fprintf(stderr,
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"%s: scale must be a nonnegative number\n",
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progname);
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- else
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+ checkferror_output(stderr);
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+ } else
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dc_scale = tmpint;
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}
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break;
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@@ -341,11 +347,12 @@ between 2 and %d (inclusive)\n",
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tmpint = 0;
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if (datum.dc_type == DC_NUMBER)
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tmpint = dc_num2int(datum.v.number, DC_TOSS);
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- if ( ! (tmpint > 1) )
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+ if ( ! (tmpint > 1) ) {
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fprintf(stderr,
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"%s: output base must be a number greater than 1\n",
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progname);
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- else
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+ checkferror_output(stderr);
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+ } else
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dc_obase = tmpint;
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}
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break;
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@@ -378,6 +385,7 @@ between 2 and %d (inclusive)\n",
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fprintf(stderr,
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"%s: square root of nonnumeric attempted\n",
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progname);
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+ checkferror_output(stderr);
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}else if (dc_sqrt(datum.v.number, dc_scale, &tmpnum) == DC_SUCCESS){
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dc_free_num(&datum.v.number);
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datum.v.number = tmpnum;
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@@ -424,6 +432,7 @@ between 2 and %d (inclusive)\n",
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dc_garbage("at top of stack", -1);
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}
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fflush(stdout);
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+ checkferror_output(stdout);
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break;
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case 'Q': /* quit out of top-of-stack nested evals;
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* pops value from stack;
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@@ -440,6 +449,7 @@ between 2 and %d (inclusive)\n",
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fprintf(stderr,
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"%s: Q command requires a number >= 1\n",
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progname);
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+ checkferror_output(stderr);
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}
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break;
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case 'R': /* pop a value off of the evaluation stack,;
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@@ -483,11 +493,12 @@ between 2 and %d (inclusive)\n",
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if (datum.dc_type == DC_NUMBER)
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tmpint = dc_num2int(datum.v.number, DC_TOSS);
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if (dc_pop(&datum) == DC_SUCCESS){
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- if (tmpint < 0)
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+ if (tmpint < 0) {
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fprintf(stderr,
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"%s: array index must be a nonnegative integer\n",
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progname);
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- else
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+ checkferror_output(stderr);
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+ } else
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dc_array_set(peekc, tmpint, datum);
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}
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}
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@@ -499,18 +510,21 @@ between 2 and %d (inclusive)\n",
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tmpint = -1;
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if (datum.dc_type == DC_NUMBER)
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tmpint = dc_num2int(datum.v.number, DC_TOSS);
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- if (tmpint < 0)
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+ if (tmpint < 0) {
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fprintf(stderr,
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"%s: array index must be a nonnegative integer\n",
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progname);
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- else
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+ checkferror_output(stderr);
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+ } else
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dc_push(dc_array_get(peekc, tmpint));
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}
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return DC_EATONE;
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default: /* What did that user mean? */
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fprintf(stderr, "%s: ", progname);
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+ checkferror_output(stderr);
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dc_show_id(stdout, c, " unimplemented\n");
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+ checkferror_output(stdout);
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break;
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}
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return DC_OKAY;
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@@ -538,6 +552,7 @@ evalstr DC_DECLARG((string))
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fprintf(stderr,
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"%s: eval called with non-string argument\n",
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progname);
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+ checkferror_output(stderr);
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return DC_OKAY;
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}
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interrupt_seen = 0;
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@@ -635,6 +650,7 @@ evalstr DC_DECLARG((string))
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return DC_FAIL;
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}
|
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fprintf(stderr, "%s: unexpected EOS\n", progname);
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+ checkferror_output(stderr);
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return DC_OKAY;
|
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}
|
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}
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@@ -692,6 +708,7 @@ dc_evalfile DC_DECLARG((fp))
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stdin_lookahead = EOF;
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for (c=getc(fp); c!=EOF; c=peekc){
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peekc = getc(fp);
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+ checkferror_input(stdin);
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/*
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* The following if() is the only place where ``stdin_lookahead''
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* might be set to other than EOF:
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@@ -717,24 +734,30 @@ dc_evalfile DC_DECLARG((fp))
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signal(SIGINT, sigint_handler);
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switch (dc_func(c, peekc, negcmp)){
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case DC_OKAY:
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- if (stdin_lookahead != peekc && fp == stdin)
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+ if (stdin_lookahead != peekc && fp == stdin) {
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peekc = getc(fp);
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+ checkferror_input(stdin);
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+ }
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break;
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case DC_EATONE:
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peekc = getc(fp);
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+ checkferror_input(fp);
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break;
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case DC_EVALREG:
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/*commands which send us here shall guarantee that peekc!=EOF*/
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c = peekc;
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peekc = getc(fp);
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+ checkferror_input(fp);
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stdin_lookahead = peekc;
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if (dc_register_get(c, &datum) != DC_SUCCESS)
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break;
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dc_push(datum);
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/*@fallthrough@*/
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case DC_EVALTOS:
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||
- if (stdin_lookahead != peekc && fp == stdin)
|
||
+ if (stdin_lookahead != peekc && fp == stdin) {
|
||
peekc = getc(fp);
|
||
+ checkferror_input(stdin);
|
||
+ }
|
||
if (dc_pop(&datum) == DC_SUCCESS){
|
||
if (datum.dc_type == DC_NUMBER){
|
||
dc_push(datum);
|
||
@@ -744,6 +767,7 @@ dc_evalfile DC_DECLARG((fp))
|
||
goto reset_and_exit_quit;
|
||
fprintf(stderr, "%s: Q command argument exceeded \
|
||
string execution depth\n", progname);
|
||
+ checkferror_output(stderr);
|
||
}
|
||
}else{
|
||
dc_garbage("at top of stack", -1);
|
||
@@ -756,8 +780,11 @@ string execution depth\n", progname);
|
||
fprintf(stderr,
|
||
"%s: Q command argument exceeded string execution depth\n",
|
||
progname);
|
||
- if (stdin_lookahead != peekc && fp == stdin)
|
||
+ checkferror_output(stderr);
|
||
+ if (stdin_lookahead != peekc && fp == stdin) {
|
||
peekc = getc(fp);
|
||
+ checkferror_input(stdin);
|
||
+ }
|
||
break;
|
||
|
||
case DC_INT:
|
||
diff --git a/dc/misc.c b/dc/misc.c
|
||
index cd23602..cd910b8 100644
|
||
--- a/dc/misc.c
|
||
+++ b/dc/misc.c
|
||
@@ -89,6 +89,7 @@ dc_show_id DC_DECLARG((fp, id, suffix))
|
||
fprintf(fp, "'%c' (%#o)%s", (unsigned int) id, id, suffix);
|
||
else
|
||
fprintf(fp, "%#o%s", (unsigned int) id, suffix);
|
||
+ checkferror_output(fp);
|
||
}
|
||
|
||
|
||
diff --git a/dc/numeric.c b/dc/numeric.c
|
||
index 37759de..60cfb85 100644
|
||
--- a/dc/numeric.c
|
||
+++ b/dc/numeric.c
|
||
@@ -133,6 +133,7 @@ dc_div DC_DECLARG((a, b, kscale, result))
|
||
bc_init_num(CastNumPtr(result));
|
||
if (bc_divide(CastNum(a), CastNum(b), CastNumPtr(result), kscale)){
|
||
fprintf(stderr, "%s: divide by zero\n", progname);
|
||
+ checkferror_output(stderr);
|
||
return DC_DOMAIN_ERROR;
|
||
}
|
||
return DC_SUCCESS;
|
||
@@ -155,6 +156,7 @@ dc_divrem DC_DECLARG((a, b, kscale, quotient, remainder))
|
||
if (bc_divmod(CastNum(a), CastNum(b),
|
||
CastNumPtr(quotient), CastNumPtr(remainder), kscale)){
|
||
fprintf(stderr, "%s: divide by zero\n", progname);
|
||
+ checkferror_output(stderr);
|
||
return DC_DOMAIN_ERROR;
|
||
}
|
||
return DC_SUCCESS;
|
||
@@ -173,6 +175,7 @@ dc_rem DC_DECLARG((a, b, kscale, result))
|
||
bc_init_num(CastNumPtr(result));
|
||
if (bc_modulo(CastNum(a), CastNum(b), CastNumPtr(result), kscale)){
|
||
fprintf(stderr, "%s: remainder by zero\n", progname);
|
||
+ checkferror_output(stderr);
|
||
return DC_DOMAIN_ERROR;
|
||
}
|
||
return DC_SUCCESS;
|
||
@@ -225,6 +228,7 @@ dc_sqrt DC_DECLARG((value, kscale, result))
|
||
tmp = bc_copy_num(CastNum(value));
|
||
if (!bc_sqrt(&tmp, kscale)){
|
||
fprintf(stderr, "%s: square root of negative number\n", progname);
|
||
+ checkferror_output(stderr);
|
||
bc_free_num(&tmp);
|
||
return DC_DOMAIN_ERROR;
|
||
}
|
||
@@ -470,6 +474,7 @@ dc_dump_num DC_DECLARG((dcvalue, discard_p))
|
||
|
||
for (cur=top_of_stack; cur; cur=next) {
|
||
putchar(cur->digit);
|
||
+ checkferror_output(stdout);
|
||
next = cur->link;
|
||
free(cur);
|
||
}
|
||
@@ -587,6 +592,8 @@ out_char (ch)
|
||
out_col = 1;
|
||
}
|
||
putchar(ch);
|
||
+ checkferror_output(stdout);
|
||
+ checkferror_output(stderr);
|
||
}
|
||
}
|
||
|
||
@@ -626,6 +633,7 @@ rt_error (mesg, va_alist)
|
||
vfprintf (stderr, mesg, args);
|
||
va_end (args);
|
||
fprintf (stderr, "\n");
|
||
+ checkferror_output(stderr);
|
||
}
|
||
|
||
|
||
@@ -659,6 +667,7 @@ rt_warn (mesg, va_alist)
|
||
vfprintf (stderr, mesg, args);
|
||
va_end (args);
|
||
fprintf (stderr, "\n");
|
||
+ checkferror_output(stderr);
|
||
}
|
||
|
||
|
||
diff --git a/dc/stack.c b/dc/stack.c
|
||
index 49422df..174411d 100644
|
||
--- a/dc/stack.c
|
||
+++ b/dc/stack.c
|
||
@@ -35,7 +35,10 @@
|
||
#include "dc-regdef.h"
|
||
|
||
/* an oft-used error message: */
|
||
-#define Empty_Stack fprintf(stderr, "%s: stack empty\n", progname)
|
||
+#define Empty_Stack do{ \
|
||
+ fprintf(stderr, "%s: stack empty\n", progname); \
|
||
+ checkferror_output(stderr); \
|
||
+ }while(0)
|
||
|
||
|
||
/* simple linked-list implementation suffices: */
|
||
@@ -91,6 +94,7 @@ dc_binop DC_DECLARG((op, kscale))
|
||
if (dc_stack->value.dc_type!=DC_NUMBER
|
||
|| dc_stack->link->value.dc_type!=DC_NUMBER){
|
||
fprintf(stderr, "%s: non-numeric value\n", progname);
|
||
+ checkferror_output(stderr);
|
||
return;
|
||
}
|
||
(void)dc_pop(&b);
|
||
@@ -131,6 +135,7 @@ dc_binop2 DC_DECLARG((op, kscale))
|
||
if (dc_stack->value.dc_type!=DC_NUMBER
|
||
|| dc_stack->link->value.dc_type!=DC_NUMBER){
|
||
fprintf(stderr, "%s: non-numeric value\n", progname);
|
||
+ checkferror_output(stderr);
|
||
return;
|
||
}
|
||
(void)dc_pop(&b);
|
||
@@ -169,6 +174,7 @@ dc_cmpop DC_DECLVOID()
|
||
if (dc_stack->value.dc_type!=DC_NUMBER
|
||
|| dc_stack->link->value.dc_type!=DC_NUMBER){
|
||
fprintf(stderr, "%s: non-numeric value\n", progname);
|
||
+ checkferror_output(stderr);
|
||
return 0;
|
||
}
|
||
(void)dc_pop(&b);
|
||
@@ -206,6 +212,7 @@ dc_triop DC_DECLARG((op, kscale))
|
||
|| dc_stack->link->value.dc_type!=DC_NUMBER
|
||
|| dc_stack->link->link->value.dc_type!=DC_NUMBER){
|
||
fprintf(stderr, "%s: non-numeric value\n", progname);
|
||
+ checkferror_output(stderr);
|
||
return;
|
||
}
|
||
(void)dc_pop(&c);
|
||
@@ -327,6 +334,7 @@ dc_register_get DC_DECLARG((regid, result))
|
||
*result = dc_int2data(0);
|
||
}else if (r->value.dc_type==DC_UNINITIALIZED){
|
||
fprintf(stderr, "%s: BUG: register ", progname);
|
||
+ checkferror_output(stderr);
|
||
dc_show_id(stderr, regid, " exists but is uninitialized?\n");
|
||
return DC_FAIL;
|
||
}else{
|
||
@@ -402,6 +410,7 @@ dc_register_pop DC_DECLARG((stackid, result))
|
||
r = dc_register[stackid];
|
||
if (r==NULL || r->value.dc_type==DC_UNINITIALIZED){
|
||
fprintf(stderr, "%s: stack register ", progname);
|
||
+ checkferror_output(stderr);
|
||
dc_show_id(stderr, stackid, " is empty\n");
|
||
return DC_FAIL;
|
||
}
|
||
diff --git a/dc/string.c b/dc/string.c
|
||
index dee9169..389d899 100644
|
||
--- a/dc/string.c
|
||
+++ b/dc/string.c
|
||
@@ -94,6 +94,7 @@ dc_out_str DC_DECLARG((value, discard_flag))
|
||
dc_discard discard_flag DC_DECLEND
|
||
{
|
||
fwrite(value->s_ptr, value->s_len, sizeof *value->s_ptr, stdout);
|
||
+ checkferror_output(stdout);
|
||
if (discard_flag == DC_TOSS)
|
||
dc_free_str(&value);
|
||
}
|
||
@@ -169,6 +170,7 @@ dc_readstring DC_DECLARG((fp, ldelim, rdelim))
|
||
}
|
||
*p++ = c;
|
||
}
|
||
+ checkferror_input(fp);
|
||
return dc_makestring(line_buf, (size_t)(p-line_buf));
|
||
}
|
||
|
||
diff --git a/h/number.h b/h/number.h
|
||
index abf6332..1983ab4 100644
|
||
--- a/h/number.h
|
||
+++ b/h/number.h
|
||
@@ -23,10 +23,10 @@
|
||
You may contact the author by:
|
||
e-mail: philnelson@acm.org
|
||
us-mail: Philip A. Nelson
|
||
- Computer Science Department, 9062
|
||
- Western Washington University
|
||
- Bellingham, WA 98226-9062
|
||
-
|
||
+ Computer Science Department, 9062
|
||
+ Western Washington University
|
||
+ Bellingham, WA 98226-9062
|
||
+
|
||
*************************************************************************/
|
||
|
||
#ifndef _NUMBER_H_
|
||
@@ -140,4 +140,7 @@ void bc_out_num (bc_num num, int o_base, void (* out_char)(int),
|
||
int leading_zero);
|
||
|
||
void bc_out_long (long val, int size, int space, void (*out_char)(int));
|
||
+
|
||
+void checkferror_input (FILE*);
|
||
+void checkferror_output (FILE*);
|
||
#endif
|
||
diff --git a/lib/number.c b/lib/number.c
|
||
index f394e92..80b33e3 100644
|
||
--- a/lib/number.c
|
||
+++ b/lib/number.c
|
||
@@ -1713,6 +1713,7 @@ static void
|
||
out_char (int c)
|
||
{
|
||
putchar(c);
|
||
+ checkferror_output(stdout);
|
||
}
|
||
|
||
|
||
@@ -1721,6 +1722,7 @@ pn (bc_num num)
|
||
{
|
||
bc_out_num (num, 10, out_char, 0);
|
||
out_char ('\n');
|
||
+ checkferror_output(stdout);
|
||
}
|
||
|
||
|
||
@@ -1732,6 +1734,28 @@ pv (char *name, unsigned char *num, int len)
|
||
printf ("%s=", name);
|
||
for (i=0; i<len; i++) printf ("%c",BCD_CHAR(num[i]));
|
||
printf ("\n");
|
||
+ checkferror_output(stdout);
|
||
}
|
||
|
||
#endif
|
||
+
|
||
+/* check ferror() status and if so die */
|
||
+void
|
||
+checkferror_input (fp)
|
||
+ FILE *fp;
|
||
+{
|
||
+ if (ferror(fp)) {
|
||
+ perror("dc: could not read input file");
|
||
+ exit(EXIT_FAILURE);
|
||
+ }
|
||
+}
|
||
+
|
||
+void
|
||
+checkferror_output (fp)
|
||
+ FILE *fp;
|
||
+{
|
||
+ if (ferror(fp)) {
|
||
+ perror("dc: could not write output file");
|
||
+ exit(EXIT_FAILURE);
|
||
+ }
|
||
+}
|
||
--
|
||
2.17.1
|
||
|