unix.7: Use a 'ssize_t' for the return value of read(2) and write(2)

Signed-off-by: Alejandro Colomar <alx@kernel.org>

1 files changed, 23 insertions, 21 deletions

diff --git a/man7/unix.7 b/man7/unix.7
index 1c4161f28..74db95fcd 100644
--- a/man7/unix.7
+++ b/man7/unix.7
@@ -984,13 +984,14 @@ $
 int
 main(void)
 {
-    struct sockaddr_un name;
-    int down_flag = 0;
-    int ret;
-    int connection_socket;
-    int data_socket;
-    int result;
-    char buffer[BUFFER_SIZE];
+    int                 down_flag = 0;
+    int                 ret;
+    int                 connection_socket;
+    int                 data_socket;
+    int                 result;
+    ssize_t             r, w;
+    struct sockaddr_un  name;
+    char                buffer[BUFFER_SIZE];
 \&
     /* Create local socket. */
 \&
@@ -1049,8 +1050,8 @@ main(void)
 \&
             /* Wait for next data packet. */
 \&
-            ret = read(data_socket, buffer, sizeof(buffer));
-            if (ret == \-1) {
+            r = read(data_socket, buffer, sizeof(buffer));
+            if (r == \-1) {
                 perror("read");
                 exit(EXIT_FAILURE);
             }
@@ -1078,8 +1079,8 @@ main(void)
         /* Send result. */
 \&
         sprintf(buffer, "%d", result);
-        ret = write(data_socket, buffer, sizeof(buffer));
-        if (ret == \-1) {
+        w = write(data_socket, buffer, sizeof(buffer));
+        if (w == \-1) {
             perror("write");
             exit(EXIT_FAILURE);
         }
@@ -1124,10 +1125,11 @@ main(void)
 int
 main(int argc, char *argv[])
 {
-    struct sockaddr_un addr;
-    int ret;
-    int data_socket;
-    char buffer[BUFFER_SIZE];
+    int                 ret;
+    int                 data_socket;
+    ssize_t             r, w;
+    struct sockaddr_un  addr;
+    char                buffer[BUFFER_SIZE];
 \&
     /* Create local socket. */
 \&
@@ -1160,8 +1162,8 @@ main(int argc, char *argv[])
     /* Send arguments. */
 \&
     for (int i = 1; i < argc; ++i) {
-        ret = write(data_socket, argv[i], strlen(argv[i]) + 1);
-        if (ret == \-1) {
+        w = write(data_socket, argv[i], strlen(argv[i]) + 1);
+        if (w == \-1) {
             perror("write");
             break;
         }
@@ -1170,16 +1172,16 @@ main(int argc, char *argv[])
     /* Request result. */
 \&
     strcpy(buffer, "END");
-    ret = write(data_socket, buffer, strlen(buffer) + 1);
-    if (ret == \-1) {
+    w = write(data_socket, buffer, strlen(buffer) + 1);
+    if (w == \-1) {
         perror("write");
         exit(EXIT_FAILURE);
     }
 \&
     /* Receive result. */
 \&
-    ret = read(data_socket, buffer, sizeof(buffer));
-    if (ret == \-1) {
+    r = read(data_socket, buffer, sizeof(buffer));
+    if (r == \-1) {
         perror("read");
         exit(EXIT_FAILURE);
     }