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Remove all void-pointer arithmetic. 

ANSI C99 doesn't allow void-pointer arithmetic. This patch fixes this in
various ways. Usually the strategy that required the least changes was used.

Signed-off-by: Florian Forster <octo@verplant.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Florian Forster 2006-06-18 17:18:09 +02:00 committed by Junio C Hamano
parent 2bda77e080
commit 1d7f171c3a
19 changed files with 72 additions and 69 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
builtin-apply.c
View File

@ -148,7 +148,7 @@ static void *read_patch_file(int fd, unsigned long *sizep)
buffer = xrealloc(buffer, alloc);
nr = alloc - size;
}
nr = xread(fd, buffer + size, nr);
nr = xread(fd, (char *) buffer + size, nr);
if (!nr)
break;
if (nr < 0)
@ -164,7 +164,7 @@ static void *read_patch_file(int fd, unsigned long *sizep)
*/
if (alloc < size + SLOP)
buffer = xrealloc(buffer, size + SLOP);
memset(buffer + size, 0, SLOP);
memset((char *) buffer + size, 0, SLOP);
return buffer;
}
@ -1194,7 +1194,7 @@ static int read_old_data(struct stat *st, const char *path, void *buf, unsigned
return error("unable to open %s", path);
got = 0;
for (;;) {
int ret = xread(fd, buf + got, size - got);
int ret = xread(fd, (char *) buf + got, size - got);
if (ret <= 0)
break;
got += ret;

22
convert-objects.c
View File

@ -103,12 +103,12 @@ static int write_subdirectory(void *buffer, unsigned long size, const char *base
if (!slash) {
newlen += sprintf(new + newlen, "%o %s", mode, path);
new[newlen++] = '\0';
memcpy(new + newlen, buffer + len - 20, 20);
memcpy(new + newlen, (char *) buffer + len - 20, 20);
newlen += 20;
used += len;
size -= len;
buffer += len;
buffer = (char *) buffer + len;
continue;
}
@ -121,7 +121,7 @@ static int write_subdirectory(void *buffer, unsigned long size, const char *base
used += len;
size -= len;
buffer += len;
buffer = (char *) buffer + len;
}
write_sha1_file(new, newlen, tree_type, result_sha1);
@ -137,13 +137,13 @@ static void convert_tree(void *buffer, unsigned long size, unsigned char *result
while (size) {
int len = 1+strlen(buffer);
convert_binary_sha1(buffer + len);
convert_binary_sha1((char *) buffer + len);
len += 20;
if (len > size)
die("corrupt tree object");
size -= len;
buffer += len;
buffer = (char *) buffer + len;
}
write_subdirectory(orig_buffer, orig_size, "", 0, result_sha1);
@ -244,14 +244,14 @@ static void convert_date(void *buffer, unsigned long size, unsigned char *result
// "tree <sha1>\n"
memcpy(new + newlen, buffer, 46);
newlen += 46;
buffer += 46;
buffer = (char *) buffer + 46;
size -= 46;
// "parent <sha1>\n"
while (!memcmp(buffer, "parent ", 7)) {
memcpy(new + newlen, buffer, 48);
newlen += 48;
buffer += 48;
buffer = (char *) buffer + 48;
size -= 48;
}
@ -275,11 +275,11 @@ static void convert_commit(void *buffer, unsigned long size, unsigned char *resu
if (memcmp(buffer, "tree ", 5))
die("Bad commit '%s'", (char*) buffer);
convert_ascii_sha1(buffer+5);
buffer += 46; /* "tree " + "hex sha1" + "\n" */
convert_ascii_sha1((char *) buffer + 5);
buffer = (char *) buffer + 46; /* "tree " + "hex sha1" + "\n" */
while (!memcmp(buffer, "parent ", 7)) {
convert_ascii_sha1(buffer+7);
buffer += 48;
convert_ascii_sha1((char *) buffer + 7);
buffer = (char *) buffer + 48;
}
convert_date(orig_buffer, orig_size, result_sha1);
}

4
csum-file.c
View File

@ -17,7 +17,7 @@ static int sha1flush(struct sha1file *f, unsigned int count)
for (;;) {
int ret = xwrite(f->fd, buf, count);
if (ret > 0) {
buf += ret;
buf = (char *) buf + ret;
count -= ret;
if (count)
continue;
@ -57,7 +57,7 @@ int sha1write(struct sha1file *f, void *buf, unsigned int count)
memcpy(f->buffer + offset, buf, nr);
count -= nr;
offset += nr;
buf += nr;
buf = (char *) buf + nr;
left -= nr;
if (!left) {
SHA1_Update(&f->ctx, f->buffer, offset);

2
diff-delta.c
View File

@ -284,7 +284,7 @@ create_delta(const struct delta_index *index,
ref_data = index->src_buf;
ref_top = ref_data + index->src_size;
data = trg_buf;
top = trg_buf + trg_size;
top = (const unsigned char *) trg_buf + trg_size;
outpos++;
val = 0;

2
diff.c
View File

@ -515,7 +515,7 @@ static void emit_binary_diff(mmfile_t *one, mmfile_t *two)
else
line[0] = bytes - 26 + 'a' - 1;
encode_85(line + 1, cp, bytes);
cp += bytes;
cp = (char *) cp + bytes;
puts(line);
}
printf("\n");

2
diffcore-order.c
View File

@ -30,7 +30,7 @@ static void prepare_order(const char *orderfile)
close(fd);
if (map == MAP_FAILED)
return;
endp = map + st.st_size;
endp = (char *) map + st.st_size;
for (pass = 0; pass < 2; pass++) {
cnt = 0;
cp = map;

2
http-fetch.c
View File

@ -123,7 +123,7 @@ static size_t fwrite_sha1_file(void *ptr, size_t eltsize, size_t nmemb,
struct object_request *obj_req = (struct object_request *)data;
do {
ssize_t retval = write(obj_req->local,
ptr + posn, size - posn);
(char *) ptr + posn, size - posn);
if (retval < 0)
return posn;
posn += retval;

2
http-push.c
View File

@ -196,7 +196,7 @@ static size_t fwrite_sha1_file(void *ptr, size_t eltsize, size_t nmemb,
struct transfer_request *request = (struct transfer_request *)data;
do {
ssize_t retval = write(request->local_fileno,
ptr + posn, size - posn);
(char *) ptr + posn, size - posn);
if (retval < 0)
return posn;
posn += retval;

4
http.c
View File

@ -34,7 +34,7 @@ size_t fread_buffer(void *ptr, size_t eltsize, size_t nmemb,
size_t size = eltsize * nmemb;
if (size > buffer->size - buffer->posn)
size = buffer->size - buffer->posn;
memcpy(ptr, buffer->buffer + buffer->posn, size);
memcpy(ptr, (char *) buffer->buffer + buffer->posn, size);
buffer->posn += size;
return size;
}
@ -49,7 +49,7 @@ size_t fwrite_buffer(const void *ptr, size_t eltsize,
buffer->size = buffer->posn + size;
buffer->buffer = xrealloc(buffer->buffer, buffer->size);
}
memcpy(buffer->buffer + buffer->posn, ptr, size);
memcpy((char *) buffer->buffer + buffer->posn, ptr, size);
buffer->posn += size;
data_received++;
return size;

6
pack-check.c
View File

@ -29,10 +29,10 @@ static int verify_packfile(struct packed_git *p)
pack_base = p->pack_base;
SHA1_Update(&ctx, pack_base, pack_size - 20);
SHA1_Final(sha1, &ctx);
if (memcmp(sha1, pack_base + pack_size - 20, 20))
if (memcmp(sha1, (char *) pack_base + pack_size - 20, 20))
return error("Packfile %s SHA1 mismatch with itself",
p->pack_name);
if (memcmp(sha1, index_base + index_size - 40, 20))
if (memcmp(sha1, (char *) index_base + index_size - 40, 20))
return error("Packfile %s SHA1 mismatch with idx",
p->pack_name);
@ -135,7 +135,7 @@ int verify_pack(struct packed_git *p, int verbose)
SHA1_Init(&ctx);
SHA1_Update(&ctx, index_base, index_size - 20);
SHA1_Final(sha1, &ctx);
if (memcmp(sha1, index_base + index_size - 20, 20))
if (memcmp(sha1, (char *) index_base + index_size - 20, 20))
ret = error("Packfile index for %s SHA1 mismatch",
p->pack_name);

4
pack-objects.c
View File

@ -156,7 +156,7 @@ static void prepare_pack_revindex(struct pack_revindex *rix)
rix->revindex = xmalloc(sizeof(unsigned long) * (num_ent + 1));
for (i = 0; i < num_ent; i++) {
unsigned int hl = *((unsigned int *)(index + 24 * i));
unsigned int hl = *((unsigned int *)((char *) index + 24*i));
rix->revindex[i] = ntohl(hl);
}
/* This knows the pack format -- the 20-byte trailer
@ -300,7 +300,7 @@ static unsigned long write_object(struct sha1file *f,
use_packed_git(p);
datalen = find_packed_object_size(p, entry->in_pack_offset);
buf = p->pack_base + entry->in_pack_offset;
buf = (char *) p->pack_base + entry->in_pack_offset;
sha1write(f, buf, datalen);
unuse_packed_git(p);
hdrlen = 0; /* not really */

18
pack-redundant.c
View File

@ -246,12 +246,12 @@ static struct pack_list * pack_list_difference(const struct pack_list *A,
static void cmp_two_packs(struct pack_list *p1, struct pack_list *p2)
{
int p1_off, p2_off;
void *p1_base, *p2_base;
unsigned char *p1_base, *p2_base;
struct llist_item *p1_hint = NULL, *p2_hint = NULL;
p1_off = p2_off = 256 * 4 + 4;
p1_base = (void *)p1->pack->index_base;
p2_base = (void *)p2->pack->index_base;
p1_base = (unsigned char *) p1->pack->index_base;
p2_base = (unsigned char *) p2->pack->index_base;
while (p1_off <= p1->pack->index_size - 3 * 20 &&
p2_off <= p2->pack->index_size - 3 * 20)
@ -351,11 +351,11 @@ static size_t sizeof_union(struct packed_git *p1, struct packed_git *p2)
{
size_t ret = 0;
int p1_off, p2_off;
void *p1_base, *p2_base;
char *p1_base, *p2_base;
p1_off = p2_off = 256 * 4 + 4;
p1_base = (void *)p1->index_base;
p2_base = (void *)p2->index_base;
p1_base = (char *)p1->index_base;
p2_base = (char *)p2->index_base;
while (p1_off <= p1->index_size - 3 * 20 &&
p2_off <= p2->index_size - 3 * 20)
@ -534,7 +534,7 @@ static struct pack_list * add_pack(struct packed_git *p)
{
struct pack_list l;
size_t off;
void *base;
unsigned char *base;
if (!p->pack_local && !(alt_odb || verbose))
return NULL;
@ -543,7 +543,7 @@ static struct pack_list * add_pack(struct packed_git *p)
llist_init(&l.all_objects);
off = 256 * 4 + 4;
base = (void *)p->index_base;
base = (unsigned char *)p->index_base;
while (off <= p->index_size - 3 * 20) {
llist_insert_back(l.all_objects, base + off);
off += 24;

4
patch-delta.c
View File

@ -25,7 +25,7 @@ void *patch_delta(const void *src_buf, unsigned long src_size,
return NULL;
data = delta_buf;
top = delta_buf + delta_size;
top = (const unsigned char *) delta_buf + delta_size;
/* make sure the orig file size matches what we expect */
size = get_delta_hdr_size(&data, top);
@ -56,7 +56,7 @@ void *patch_delta(const void *src_buf, unsigned long src_size,
cp_off + cp_size > src_size ||
cp_size > size)
goto bad;
memcpy(out, src_buf + cp_off, cp_size);
memcpy(out, (char *) src_buf + cp_off, cp_size);
out += cp_size;
size -= cp_size;
} else if (cmd) {

4
pkt-line.c
View File

@ -21,7 +21,7 @@ static void safe_write(int fd, const void *buf, unsigned n)
while (n) {
int ret = xwrite(fd, buf, n);
if (ret > 0) {
buf += ret;
buf = (char *) buf + ret;
n -= ret;
continue;
}
@ -66,7 +66,7 @@ static void safe_read(int fd, void *buffer, unsigned size)
int n = 0;
while (n < size) {
int ret = xread(fd, buffer + n, size - n);
int ret = xread(fd, (char *) buffer + n, size - n);
if (ret < 0)
die("read error (%s)", strerror(errno));
if (!ret)

13
read-cache.c
View File

@ -706,7 +706,7 @@ static int verify_hdr(struct cache_header *hdr, unsigned long size)
SHA1_Init(&c);
SHA1_Update(&c, hdr, size - 20);
SHA1_Final(sha1, &c);
if (memcmp(sha1, (void *)hdr + size - 20, 20))
if (memcmp(sha1, (char *) hdr + size - 20, 20))
return error("bad index file sha1 signature");
return 0;
}
@ -770,7 +770,7 @@ int read_cache(void)
offset = sizeof(*hdr);
for (i = 0; i < active_nr; i++) {
struct cache_entry *ce = map + offset;
struct cache_entry *ce = (struct cache_entry *) ((char *) map + offset);
offset = offset + ce_size(ce);
active_cache[i] = ce;
}
@ -783,10 +783,11 @@ int read_cache(void)
* in 4-byte network byte order.
*/
unsigned long extsize;
memcpy(&extsize, map + offset + 4, 4);
memcpy(&extsize, (char *) map + offset + 4, 4);
extsize = ntohl(extsize);
if (read_index_extension(map + offset,
map + offset + 8, extsize) < 0)
if (read_index_extension(((const char *) map) + offset,
(char *) map + offset + 8,
extsize) < 0)
goto unmap;
offset += 8;
offset += extsize;
@ -820,7 +821,7 @@ static int ce_write(SHA_CTX *context, int fd, void *data, unsigned int len)
}
write_buffer_len = buffered;
len -= partial;
data += partial;
data = (char *) data + partial;
}
return 0;
}

29
sha1_file.c
View File

@ -486,8 +486,9 @@ int use_packed_git(struct packed_git *p)
* this is cheap.
*/
if (memcmp((char*)(p->index_base) + p->index_size - 40,
p->pack_base + p->pack_size - 20, 20)) {
(char *) p->pack_base + p->pack_size - 20,
20)) {
die("packfile %s does not match index.", p->pack_name);
}
}
@ -701,7 +702,7 @@ static void *unpack_sha1_rest(z_stream *stream, void *buffer, unsigned long size
int bytes = strlen(buffer) + 1;
unsigned char *buf = xmalloc(1+size);
memcpy(buf, buffer + bytes, stream->total_out - bytes);
memcpy(buf, (char *) buffer + bytes, stream->total_out - bytes);
bytes = stream->total_out - bytes;
if (bytes < size) {
stream->next_out = buf + bytes;
@ -853,7 +854,7 @@ static unsigned long unpack_object_header(struct packed_git *p, unsigned long of
if (offset >= p->pack_size)
die("object offset outside of pack file");
pack = p->pack_base + offset;
pack = (unsigned char *) p->pack_base + offset;
c = *pack++;
offset++;
*type = (c >> 4) & 7;
@ -883,7 +884,7 @@ int check_reuse_pack_delta(struct packed_git *p, unsigned long offset,
ptr = unpack_object_header(p, ptr, kindp, sizep);
if (*kindp != OBJ_DELTA)
goto done;
memcpy(base, p->pack_base + ptr, 20);
memcpy(base, (char *) p->pack_base + ptr, 20);
status = 0;
done:
unuse_packed_git(p);
@ -903,7 +904,7 @@ void packed_object_info_detail(struct pack_entry *e,
enum object_type kind;
offset = unpack_object_header(p, e->offset, &kind, size);
pack = p->pack_base + offset;
pack = (unsigned char *) p->pack_base + offset;
if (kind != OBJ_DELTA)
*delta_chain_length = 0;
else {
@ -919,7 +920,7 @@ void packed_object_info_detail(struct pack_entry *e,
find_pack_entry_one(pack, &base_ent, p);
offset = unpack_object_header(p, base_ent.offset,
&kind, &junk);
pack = p->pack_base + offset;
pack = (unsigned char *) p->pack_base + offset;
chain_length++;
} while (kind == OBJ_DELTA);
*delta_chain_length = chain_length;
@ -957,7 +958,7 @@ static int packed_object_info(struct pack_entry *entry,
die("cannot map packed file");
offset = unpack_object_header(p, entry->offset, &kind, &size);
pack = p->pack_base + offset;
pack = (unsigned char *) p->pack_base + offset;
left = p->pack_size - offset;
switch (kind) {
@ -1096,7 +1097,7 @@ void *unpack_entry_gently(struct pack_entry *entry,
void *retval;
offset = unpack_object_header(p, entry->offset, &kind, &size);
pack = p->pack_base + offset;
pack = (unsigned char *) p->pack_base + offset;
left = p->pack_size - offset;
switch (kind) {
case OBJ_DELTA:
@ -1134,7 +1135,7 @@ int nth_packed_object_sha1(const struct packed_git *p, int n,
void *index = p->index_base + 256;
if (n < 0 || num_packed_objects(p) <= n)
return -1;
memcpy(sha1, (index + 24 * n + 4), 20);
memcpy(sha1, (char *) index + (24 * n) + 4, 20);
return 0;
}
@ -1148,9 +1149,9 @@ int find_pack_entry_one(const unsigned char *sha1,
do {
int mi = (lo + hi) / 2;
int cmp = memcmp(index + 24 * mi + 4, sha1, 20);
int cmp = memcmp((char *) index + (24 * mi) + 4, sha1, 20);
if (!cmp) {
e->offset = ntohl(*((unsigned int *)(index + 24 * mi)));
e->offset = ntohl(*((unsigned int *) ((char *) index + (24 * mi))));
memcpy(e->sha1, sha1, 20);
e->p = p;
return 1;
@ -1290,7 +1291,7 @@ void *read_object_with_reference(const unsigned char *sha1,
ref_length = strlen(ref_type);
if (memcmp(buffer, ref_type, ref_length) ||
get_sha1_hex(buffer + ref_length, actual_sha1)) {
get_sha1_hex((char *) buffer + ref_length, actual_sha1)) {
free(buffer);
return NULL;
}
@ -1408,7 +1409,7 @@ static int write_buffer(int fd, const void *buf, size_t len)
return error("file write error (%s)", strerror(errno));
}
len -= size;
buf += size;
buf = (char *) buf + size;
}
return 0;
}

2
ssh-fetch.c
View File

@ -24,7 +24,7 @@ static ssize_t force_write(int fd, void *buffer, size_t length)
{
ssize_t ret = 0;
while (ret < length) {
ssize_t size = write(fd, buffer + ret, length - ret);
ssize_t size = write(fd, (char *) buffer + ret, length - ret);
if (size < 0) {
return size;
}

4
tag.c
View File

@ -47,10 +47,10 @@ int parse_tag_buffer(struct tag *item, void *data, unsigned long size)
if (size < 64)
return -1;
if (memcmp("object ", data, 7) || get_sha1_hex(data + 7, object))
if (memcmp("object ", data, 7) || get_sha1_hex((char *) data + 7, object))
return -1;
type_line = data + 48;
type_line = (char *) data + 48;
if (memcmp("\ntype ", type_line-1, 6))
return -1;

11
tree-walk.c
View File

@ -43,7 +43,7 @@ void update_tree_entry(struct tree_desc *desc)
if (size < len)
die("corrupt tree file");
desc->buf = buf + len;
desc->buf = (char *) buf + len;
desc->size = size - len;
}
@ -66,7 +66,7 @@ const unsigned char *tree_entry_extract(struct tree_desc *desc, const char **pat
const void *tree = desc->buf;
unsigned long size = desc->size;
int len = strlen(tree)+1;
const unsigned char *sha1 = tree + len;
const unsigned char *sha1 = (unsigned char *) tree + len;
const char *path;
unsigned int mode;
@ -80,7 +80,8 @@ const unsigned char *tree_entry_extract(struct tree_desc *desc, const char **pat
int tree_entry(struct tree_desc *desc, struct name_entry *entry)
{
const void *tree = desc->buf, *path;
const void *tree = desc->buf;
const char *path;
unsigned long len, size = desc->size;
if (!size)
@ -95,10 +96,10 @@ int tree_entry(struct tree_desc *desc, struct name_entry *entry)
entry->pathlen = len;
path += len + 1;
entry->sha1 = path;
entry->sha1 = (const unsigned char *) path;
path += 20;
len = path - tree;
len = path - (char *) tree;
if (len > size)
die("corrupt tree file");