eventfd.2, poll.2, timerfd_create.2,

circleq.3, list.3, qsort.3, slist.3, stailq.3, tailq.3,
inotify.7: Use sizeof consistently

Use ``sizeof`` consistently through all the examples in the following
way:

- Use the name of the variable instead of its type as argument for
  ``sizeof``.

	Rationale:
	https://www.kernel.org/doc/html/v5.8/process/coding-style.html#allocating-memory

Signed-off-by: Alejandro Colomar <colomar.6.4.3@gmail.com>

10 files changed, 27 insertions, 27 deletions

diff --git a/man2/eventfd.2 b/man2/eventfd.2
index 6e2d0a99a..8944f4527 100644
--- a/man2/eventfd.2
+++ b/man2/eventfd.2
@@ -422,8 +422,8 @@ main(int argc, char *argv[])
             printf("Child writing %s to efd\en", argv[j]);
             u = strtoull(argv[j], NULL, 0);
                     /* strtoull() allows various bases */
-            s = write(efd, &u, sizeof(uint64_t));
-            if (s != sizeof(uint64_t))
+            s = write(efd, &u, sizeof(u));
+            if (s != sizeof(u))
                 handle_error("write");
         }
         printf("Child completed write loop\en");
@@ -434,8 +434,8 @@ main(int argc, char *argv[])
         sleep(2);
 
         printf("Parent about to read\en");
-        s = read(efd, &u, sizeof(uint64_t));
-        if (s != sizeof(uint64_t))
+        s = read(efd, &u, sizeof(u));
+        if (s != sizeof(u))
             handle_error("read");
         printf("Parent read %"PRIu64" (%#"PRIx64") from efd\en", u, u);
         exit(EXIT_SUCCESS);
diff --git a/man2/poll.2 b/man2/poll.2
index 205468f3e..5830ea129 100644
--- a/man2/poll.2
+++ b/man2/poll.2
@@ -595,7 +595,7 @@ main(int argc, char *argv[])
     }
 
     num_open_fds = nfds = argc \- 1;
-    pfds = calloc(nfds, sizeof(struct pollfd));
+    pfds = calloc(nfds, sizeof(*pfds));
     if (pfds == NULL)
         errExit("malloc");
 
diff --git a/man2/timerfd_create.2 b/man2/timerfd_create.2
index 65fdfcc45..dd586493a 100644
--- a/man2/timerfd_create.2
+++ b/man2/timerfd_create.2
@@ -700,8 +700,8 @@ main(int argc, char *argv[])
     printf("timer started\en");
 
     for (tot_exp = 0; tot_exp < max_exp;) {
-        s = read(fd, &exp, sizeof(uint64_t));
-        if (s != sizeof(uint64_t))
+        s = read(fd, &exp, sizeof(exp));
+        if (s != sizeof(exp))
             handle_error("read");
 
         tot_exp += exp;
diff --git a/man3/circleq.3 b/man3/circleq.3
index cb3918b53..50075aac7 100644
--- a/man3/circleq.3
+++ b/man3/circleq.3
@@ -301,16 +301,16 @@ main(void)
 
     CIRCLEQ_INIT(&head);                    /* Initialize the queue */
 
-    n1 = malloc(sizeof(struct entry));      /* Insert at the head */
+    n1 = malloc(sizeof(struct *n1));        /* Insert at the head */
     CIRCLEQ_INSERT_HEAD(&head, n1, entries);
 
-    n1 = malloc(sizeof(struct entry));      /* Insert at the tail */
+    n1 = malloc(sizeof(struct *n1));        /* Insert at the tail */
     CIRCLEQ_INSERT_TAIL(&head, n1, entries);
 
-    n2 = malloc(sizeof(struct entry));      /* Insert after */
+    n2 = malloc(sizeof(struct *n2));        /* Insert after */
     CIRCLEQ_INSERT_AFTER(&head, n1, n2, entries);
 
-    n3 = malloc(sizeof(struct entry));      /* Insert before */
+    n3 = malloc(sizeof(struct *n3));        /* Insert before */
     CIRCLEQ_INSERT_BEFORE(&head, n2, n3, entries);
 
     CIRCLEQ_REMOVE(&head, n2, entries);     /* Deletion */
diff --git a/man3/list.3 b/man3/list.3
index 04bb41668..7b8dba092 100644
--- a/man3/list.3
+++ b/man3/list.3
@@ -292,13 +292,13 @@ main(void)
 
     LIST_INIT(&head);                       /* Initialize the list */
 
-    n1 = malloc(sizeof(struct entry));      /* Insert at the head */
+    n1 = malloc(sizeof(struct *n1));        /* Insert at the head */
     LIST_INSERT_HEAD(&head, n1, entries);
 
-    n2 = malloc(sizeof(struct entry));      /* Insert after */
+    n2 = malloc(sizeof(struct *n2));        /* Insert after */
     LIST_INSERT_AFTER(n1, n2, entries);
 
-    n3 = malloc(sizeof(struct entry));      /* Insert before */
+    n3 = malloc(sizeof(struct *n3));        /* Insert before */
     LIST_INSERT_BEFORE(n2, n3, entries);
 
     i = 0;                                  /* Forward traversal */
diff --git a/man3/qsort.3 b/man3/qsort.3
index e020da36b..cd415b80c 100644
--- a/man3/qsort.3
+++ b/man3/qsort.3
@@ -151,7 +151,7 @@ main(int argc, char *argv[])
         exit(EXIT_FAILURE);
     }
 
-    qsort(&argv[1], argc \- 1, sizeof(char *), cmpstringp);
+    qsort(&argv[1], argc \- 1, sizeof(argv[0]), cmpstringp);
 
     for (int j = 1; j < argc; j++)
         puts(argv[j]);
diff --git a/man3/slist.3 b/man3/slist.3
index 88e10527b..22121046a 100644
--- a/man3/slist.3
+++ b/man3/slist.3
@@ -300,10 +300,10 @@ main(void)
 
     SLIST_INIT(&head);                      /* Initialize the queue */
 
-    n1 = malloc(sizeof(struct entry));      /* Insert at the head */
+    n1 = malloc(sizeof(struct *n1));        /* Insert at the head */
     SLIST_INSERT_HEAD(&head, n1, entries);
 
-    n2 = malloc(sizeof(struct entry));      /* Insert after */
+    n2 = malloc(sizeof(struct *n2));        /* Insert after */
     SLIST_INSERT_AFTER(n1, n2, entries);
 
     SLIST_REMOVE(&head, n2, entry, entries);/* Deletion */
@@ -314,7 +314,7 @@ main(void)
     free(n3);
 
     for (int i = 0; i < 5; i++) {
-        n1 = malloc(sizeof(struct entry));
+        n1 = malloc(sizeof(struct *n1));
         SLIST_INSERT_HEAD(&head, n1, entries);
         n1\->data = i;
     }
diff --git a/man3/stailq.3 b/man3/stailq.3
index 04738a4df..0a33dab0d 100644
--- a/man3/stailq.3
+++ b/man3/stailq.3
@@ -353,13 +353,13 @@ main(void)
 
     STAILQ_INIT(&head);                     /* Initialize the queue */
 
-    n1 = malloc(sizeof(struct entry));      /* Insert at the head */
+    n1 = malloc(sizeof(struct *n1));    /* Insert at the head */
     STAILQ_INSERT_HEAD(&head, n1, entries);
 
-    n1 = malloc(sizeof(struct entry));      /* Insert at the tail */
+    n1 = malloc(sizeof(struct *n1));    /* Insert at the tail */
     STAILQ_INSERT_TAIL(&head, n1, entries);
 
-    n2 = malloc(sizeof(struct entry));      /* Insert after */
+    n2 = malloc(sizeof(struct *n2));    /* Insert after */
     STAILQ_INSERT_AFTER(&head, n1, n2, entries);
 
     STAILQ_REMOVE(&head, n2, entry, entries); /* Deletion */
@@ -372,7 +372,7 @@ main(void)
     n1 = STAILQ_FIRST(&head);
     n1\->data = 0;
     for (int i = 1; i < 5; i++) {
-        n1 = malloc(sizeof(struct entry));
+        n1 = malloc(sizeof(struct *n1));
         STAILQ_INSERT_HEAD(&head, n1, entries);
         n1\->data = i;
     }
diff --git a/man3/tailq.3 b/man3/tailq.3
index a1fb2fdfa..f479cca9b 100644
--- a/man3/tailq.3
+++ b/man3/tailq.3
@@ -378,16 +378,16 @@ main(void)
 
     TAILQ_INIT(&head);                      /* Initialize the queue */
 
-    n1 = malloc(sizeof(struct entry));      /* Insert at the head */
+    n1 = malloc(sizeof(struct *n1));        /* Insert at the head */
     TAILQ_INSERT_HEAD(&head, n1, entries);
 
-    n1 = malloc(sizeof(struct entry));      /* Insert at the tail */
+    n1 = malloc(sizeof(struct *n1));        /* Insert at the tail */
     TAILQ_INSERT_TAIL(&head, n1, entries);
 
-    n2 = malloc(sizeof(struct entry));      /* Insert after */
+    n2 = malloc(sizeof(struct *n2));        /* Insert after */
     TAILQ_INSERT_AFTER(&head, n1, n2, entries);
 
-    n3 = malloc(sizeof(struct entry));      /* Insert before */
+    n3 = malloc(sizeof(struct *n3));        /* Insert before */
     TAILQ_INSERT_BEFORE(n2, n3, entries);
 
     TAILQ_REMOVE(&head, n2, entries);       /* Deletion */
diff --git a/man7/inotify.7 b/man7/inotify.7
index 547ceed5d..c16e0358e 100644
--- a/man7/inotify.7
+++ b/man7/inotify.7
@@ -1029,7 +1029,7 @@ main(int argc, char* argv[])
 
     /* Allocate memory for watch descriptors. */
 
-    wd = calloc(argc, sizeof(int));
+    wd = calloc(argc, sizeof(*wd));
     if (wd == NULL) {
         perror("calloc");
         exit(EXIT_FAILURE);