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Use safer allocation macros

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Use of these macros, apart from the benefits mentioned in the commit
that adds the macros, has some other good side effects:

-  Consistency in getting the size of the object from sizeof(type),
   instead of a mix of sizeof(type) sometimes and sizeof(*p) other
   times.

-  More readable code: no casts, and no sizeof(), so also shorter lines
   that we don't need to cut.

-  Consistency in using array allocation calls for allocations of arrays
   of objects, even when the object size is 1.

Cc: Valentin V. Bartenev <vbartenev@gmail.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
This commit is contained in:
Alejandro Colomar
2023-02-04 22:41:18 +01:00
committed by Serge Hallyn
parent 6e58c12752
commit efbbcade43
44 changed files with 196 additions and 118 deletions
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12
libmisc/copydir.c
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@@ -228,7 +228,7 @@ static /*@exposed@*/ /*@null@*/struct link_name *check_link (const char *name, c
return NULL;
}
lp = (struct link_name *) xmalloc (sizeof *lp);
lp = XMALLOC (struct link_name);
src_len = strlen (src_orig);
dst_len = strlen (dst_orig);
name_len = strlen (name);
@@ -236,7 +236,7 @@ static /*@exposed@*/ /*@null@*/struct link_name *check_link (const char *name, c
lp->ln_ino = sb->st_ino;
lp->ln_count = sb->st_nlink;
len = name_len - src_len + dst_len + 1;
lp->ln_name = (char *) xmalloc (len);
lp->ln_name = XMALLOCARRAY (len, char);
(void) snprintf (lp->ln_name, len, "%s%s", dst_orig, name + src_len);
lp->ln_next = links;
links = lp;
@@ -326,8 +326,8 @@ static int copy_tree_impl (const struct path_info *src, const struct path_info *
src_len += strlen (src->full_path);
dst_len += strlen (dst->full_path);
src_name = (char *) malloc (src_len);
dst_name = (char *) malloc (dst_len);
src_name = MALLOCARRAY (src_len, char);
dst_name = MALLOCARRAY (dst_len, char);
if ((NULL == src_name) || (NULL == dst_name)) {
err = -1;
@@ -561,7 +561,7 @@ static /*@null@*/char *readlink_malloc (const char *filename)
while (true) {
ssize_t nchars;
char *buffer = (char *) malloc (size);
char *buffer = MALLOCARRAY (size, char);
if (NULL == buffer) {
return NULL;
}
@@ -626,7 +626,7 @@ static int copy_symlink (const struct path_info *src, const struct path_info *ds
*/
if (strncmp (oldlink, src_orig, strlen (src_orig)) == 0) {
size_t len = strlen (dst_orig) + strlen (oldlink) - strlen (src_orig) + 1;
char *dummy = (char *) xmalloc (len);
char *dummy = XMALLOCARRAY (len, char);
(void) snprintf (dummy, len, "%s%s",
dst_orig,
oldlink + strlen (src_orig));