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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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15
lib/gshadow.c
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@@ -16,8 +16,11 @@
#include <stdio.h>
#include <string.h>
#include "alloc.h"
#include "prototypes.h"
#include "defines.h"
static /*@null@*/FILE *shadow;
static /*@null@*//*@only@*/char **members = NULL;
static size_t nmembers = 0;
@@ -63,7 +66,7 @@ static /*@null@*/char **build_list (char *s, char **list[], size_t * nlist)
while (s != NULL && *s != '\0') {
size = (nelem + 1) * sizeof (ptr);
ptr = realloc (*list, size);
ptr = REALLOCARRAY (*list, size, char *);
if (NULL != ptr) {
ptr[nelem] = s;
nelem++;
@@ -77,7 +80,7 @@ static /*@null@*/char **build_list (char *s, char **list[], size_t * nlist)
}
}
size = (nelem + 1) * sizeof (ptr);
ptr = realloc (*list, size);
ptr = REALLOCARRAY (*list, size, char *);
if (NULL != ptr) {
ptr[nelem] = NULL;
*list = ptr;
@@ -117,7 +120,7 @@ void endsgent (void)
size_t len = strlen (string) + 1;
if (len > sgrbuflen) {
char *buf = (char *) reallocarray (sgrbuf, len, sizeof (char));
char *buf = REALLOCARRAY (sgrbuf, len, char);
if (NULL == buf) {
return NULL;
}
@@ -195,7 +198,7 @@ void endsgent (void)
char *cp;
if (0 == buflen) {
buf = (char *) malloc (BUFSIZ);
buf = MALLOCARRAY (BUFSIZ, char);
if (NULL == buf) {
return NULL;
}
@@ -216,7 +219,7 @@ void endsgent (void)
&& (feof (fp) == 0)) {
size_t len;
cp = (char *) realloc (buf, buflen*2);
cp = REALLOCARRAY (buf, buflen * 2, char);
if (NULL == cp) {
return NULL;
}
@@ -437,7 +440,7 @@ int putsgent (const struct sgrp *sgrp, FILE * fp)
size += strlen (sgrp->sg_mem[i]) + 1;
}
buf = malloc (size);
buf = MALLOCARRAY (size, char);
if (NULL == buf) {
return -1;
}