linux-kernel - [PATCH 15/24] unix.7: Use sizeof() to get buffer size (instead of hardcoding macro name)

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Message-Id: <20200910211344.3562-16-colomar.6.4.3@gmail.com>
Date:   Thu, 10 Sep 2020 23:13:36 +0200
From:   Alejandro Colomar <colomar.6.4.3@...il.com>
To:     mtk.manpages@...il.com
Cc:     linux-man@...r.kernel.org, linux-kernel@...r.kernel.org,
        Alejandro Colomar <colomar.6.4.3@...il.com>
Subject: [PATCH 15/24] unix.7: Use sizeof() to get buffer size (instead of hardcoding macro name)

Signed-off-by: Alejandro Colomar <colomar.6.4.3@...il.com>
---
 man7/unix.7 | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/man7/unix.7 b/man7/unix.7
index f61b51424..50828a5bc 100644
--- a/man7/unix.7
+++ b/man7/unix.7
@@ -991,7 +991,7 @@ main(int argc, char *argv[])
 
             /* Wait for next data packet. */
 
-            ret = read(data_socket, buffer, BUFFER_SIZE);
+            ret = read(data_socket, buffer, sizeof(buffer));
             if (ret == \-1) {
                 perror("read");
                 exit(EXIT_FAILURE);
@@ -999,16 +999,16 @@ main(int argc, char *argv[])
 
             /* Ensure buffer is 0\-terminated. */
 
-            buffer[BUFFER_SIZE \- 1] = 0;
+            buffer[sizeof(buffer) \- 1] = 0;
 
             /* Handle commands. */
 
-            if (!strncmp(buffer, "DOWN", BUFFER_SIZE)) {
+            if (!strncmp(buffer, "DOWN", sizeof(buffer))) {
                 down_flag = 1;
                 break;
             }
 
-            if (!strncmp(buffer, "END", BUFFER_SIZE)) {
+            if (!strncmp(buffer, "END", sizeof(buffer))) {
                 break;
             }
 
@@ -1020,7 +1020,7 @@ main(int argc, char *argv[])
         /* Send result. */
 
         sprintf(buffer, "%d", result);
-        ret = write(data_socket, buffer, BUFFER_SIZE);
+        ret = write(data_socket, buffer, sizeof(buffer));
         if (ret == \-1) {
             perror("write");
             exit(EXIT_FAILURE);
@@ -1116,7 +1116,7 @@ main(int argc, char *argv[])
 
     /* Receive result. */
 
-    ret = read(data_socket, buffer, BUFFER_SIZE);
+    ret = read(data_socket, buffer, sizeof(buffer));
     if (ret == \-1) {
         perror("read");
         exit(EXIT_FAILURE);
@@ -1124,7 +1124,7 @@ main(int argc, char *argv[])
 
     /* Ensure buffer is 0\-terminated. */
 
-    buffer[BUFFER_SIZE \- 1] = 0;
+    buffer[sizeof(buffer) \- 1] = 0;
 
     printf("Result = %s\en", buffer);
 
-- 
2.28.0