From a7fb1e44cbb843587170d7072be47d59d1328c54 Mon Sep 17 00:00:00 2001
From: _ov4 <ov4@ov4.org>
Date: Wed, 2 Sep 2026 12:47:47 +0000
Subject: const char*

---
 src/handler.cc |  3 +--
 src/util/io.cc | 12 ++++++------
 2 files changed, 7 insertions(+), 8 deletions(-)

(limited to 'src')

diff --git a/src/handler.cc b/src/handler.cc
index 64d63e7..2e966f6 100644
--- a/src/handler.cc
+++ b/src/handler.cc
@@ -134,9 +134,8 @@ void sigint_handler([[maybe_unused]] int sig)
     {
         kill(-pid, SIGINT);
     } else {
-        char *buf = "\n";
         tcflush(STDIN_FILENO, TCIFLUSH);
-        ioctl(STDIN_FILENO, TIOCSTI, buf);
+        ioctl(STDIN_FILENO, TIOCSTI, "\n");
     }
 
     sigprocmask(SIG_SETMASK, &prev, nullptr);
diff --git a/src/util/io.cc b/src/util/io.cc
index 152271c..1fe37e5 100644
--- a/src/util/io.cc
+++ b/src/util/io.cc
@@ -5,7 +5,7 @@ using namespace std;
 namespace ov4
 {
 
-void safe_print(char *s, bool ignore_wrap)
+void safe_print(const char *s, bool ignore_wrap)
 {
     int errno_old = errno;
     if (ignore_wrap)
@@ -28,7 +28,7 @@ void safe_print(int x)
     errno = errno_old;
 }
 
-void reverse(char str[], int length)
+void reverse(char *str, int length)
 {
     int errno_old = errno;
     int start = 0;
@@ -43,7 +43,7 @@ void reverse(char str[], int length)
     errno = errno_old;
 }
 
-void safe_debug(char *s, bool ignore_wrap)
+void safe_debug(const char *s, bool ignore_wrap)
 {
     int errno_old = errno;
     if (verbose && GLOBAL_DEBUG) safe_print(s, ignore_wrap);
@@ -57,7 +57,7 @@ void safe_debug(int x)
     errno = errno_old;
 }
 
-bool isnum(char *s)
+bool isnum(const char *s)
 {
     int errno_old = errno;
     for (int i = 0; s[i] != 0; i++)
@@ -125,7 +125,7 @@ void usage(void)
 /*
  * unix_error - unix-style error routine
  */
-void unix_error(char *msg)
+void unix_error(const char *msg)
 {
     fprintf(stdout, "%s: %s\n", msg, strerror(errno));
     exit(1);
@@ -134,7 +134,7 @@ void unix_error(char *msg)
 /*
  * app_error - application-style error routine
  */
-void app_error(char *msg)
+void app_error(const char *msg)
 {
     fprintf(stdout, "%s\n", msg);
     exit(1);
-- 
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