*/
static void add_edge_to_node(common_node_t *node, edge_t *edge)
{
- node->num_of_edges++;
- node->edge = xrealloc(node->edge, sizeof(edge_t) * (node->num_of_edges + 1));
- node->edge[node->num_of_edges - 1] = edge;
+ node->edge = xrealloc_vector(node->edge, 2, node->num_of_edges);
+ node->edge[node->num_of_edges++] = edge;
}
/*
* installed package for conflicts*/
while (deb_file[i] != NULL) {
const unsigned package_num = deb_file[i]->package;
- conflicts = xrealloc(conflicts, sizeof(int) * (conflicts_num + 1));
+ conflicts = xrealloc_vector(conflicts, 2, conflicts_num);
conflicts[conflicts_num] = package_num;
conflicts_num++;
/* add provides to conflicts list */
new_node->version = package_hashtable[package_num]->edge[j]->version;
package_hashtable[conflicts_package_num] = new_node;
}
- conflicts = xrealloc(conflicts, sizeof(int) * (conflicts_num + 1));
+ conflicts = xrealloc_vector(conflicts, 2, conflicts_num);
conflicts[conflicts_num] = conflicts_package_num;
conflicts_num++;
}
file_list = NULL;
count = 0;
while ((line = xmalloc_fgetline(list_stream)) != NULL) {
- file_list = xrealloc(file_list, sizeof(char *) * (count + 2));
+//TODO: zeroing xrealloc_vector?
+ file_list = xrealloc_vector(file_list, 2, count);
file_list[count++] = line;
file_list[count] = NULL;
}
/* Read arguments and store relevant info in structs */
while (*argv) {
/* deb_count = nb_elem - 1 and we need nb_elem + 1 to allocate terminal node [NULL pointer] */
- deb_file = xrealloc(deb_file, sizeof(deb_file[0]) * (deb_count + 2));
+ deb_file = xrealloc_vector(deb_file, 2, deb_count);
deb_file[deb_count] = xzalloc(sizeof(deb_file[0][0]));
if (opt & (OPT_install | OPT_unpack)) {
/* -i/-u: require filename */
tmpindex->type = ntohl(tmpindex->type);
tmpindex->count = ntohl(tmpindex->count);
tmpindex->offset = storepos + ntohl(tmpindex->offset);
- if (pass==0)
+ if (pass == 0)
tmpindex->tag -= 743;
}
xlseek(fd, header.size, SEEK_CUR); /* Seek past store */
/* Skip padding to 8 byte boundary after reading signature headers */
- if (pass==0)
+ if (pass == 0)
xlseek(fd, (8 - (xlseek(fd,0,SEEK_CUR) % 8)) % 8, SEEK_CUR);
}
tags = xrealloc(tags, tagindex * sizeof(struct rpmtag *)); /* realloc tags to save space */
}
/* add the new list */
- cut_lists = xrealloc(cut_lists, sizeof(struct cut_list) * (++nlists));
- cut_lists[nlists-1].startpos = s;
- cut_lists[nlists-1].endpos = e;
+ cut_lists = xrealloc_vector(cut_lists, 4, nlists);
+ cut_lists[nlists].startpos = s;
+ cut_lists[nlists].endpos = e;
+ nlists++;
}
/* make sure we got some cut positions out of all that */
assert(s != next);
s = next;
+ spec = xrealloc_vector(spec, 4, n_specs);
+ memcpy(&spec[n_specs], &tspec, sizeof(spec[0]));
n_specs++;
- spec = xrealloc(spec, n_specs * sizeof(*spec));
- memcpy(&spec[n_specs-1], &tspec, sizeof *spec);
}
}
for (;;) {
line = GET_LINE(fp);
if (!line) break;
- if (!(linecount & 63))
- lines = xrealloc(lines, sizeof(char *) * (linecount + 64));
+ lines = xrealloc_vector(lines, 6, linecount);
lines[linecount++] = line;
}
fclose_if_not_stdin(fp);
return SKIP;
}
- names = xrealloc(names, (cur + 2) * sizeof(names[0]));
+ names = xrealloc_vector(names, 4, cur);
names[cur++] = xstrdup(file);
names[cur] = NULL;
// FIXME: must check that arg is a blkdev, or resolve
// "/path", "UUID=xxx" or "LABEL=xxx" into block device name
// ("UUID=xxx"/"LABEL=xxx" can probably shifted to fsck.auto duties)
- devices = xrealloc(devices, (num_devices+1) * sizeof(devices[0]));
+ devices = xrealloc_vector(devices, 2, num_devices);
devices[num_devices++] = xstrdup(arg);
continue;
}
if (arg[0] != '-' || opts_for_fsck) {
- args = xrealloc(args, (num_args+1) * sizeof(args[0]));
+ args = xrealloc_vector(args, 2, num_args);
args[num_args++] = xstrdup(arg);
continue;
}
if (optpos) {
options[0] = '-';
options[optpos + 1] = '\0';
- args = xrealloc(args, (num_args+1) * sizeof(args[0]));
+ args = xrealloc_vector(args, 2, num_args);
args[num_args++] = options;
}
}
/* gradually increasing buffer */
static void qrealloc(char **b, int n, int *size)
{
- if (!*b || n >= *size)
- *b = xrealloc(*b, *size = n + (n>>1) + 80);
+ if (!*b || n >= *size) {
+ *size = n + (n>>1) + 80;
+ *b = xrealloc(*b, *size);
+ }
}
/* resize field storage space */
member = (int *) nfile[1];
equiv(sfile[0], slen[0], sfile[1], slen[1], member);
+//TODO: xrealloc_vector?
member = xrealloc(member, (slen[1] + 2) * sizeof(int));
class = (int *) nfile[0];
void *userdata,
int depth UNUSED_PARAM)
{
- /* +2: with space for eventual trailing NULL */
- dl = xrealloc(dl, (dl_count+2) * sizeof(dl[0]));
+ dl = xrealloc_vector(dl, 5, dl_count);
dl[dl_count] = xstrdup(filename + (int)(ptrdiff_t)userdata);
dl_count++;
return TRUE;
static void add_input_file(FILE *file)
{
- G.input_file_list = xrealloc(G.input_file_list,
- (G.input_file_count + 1) * sizeof(FILE *));
+ G.input_file_list = xrealloc_vector(G.input_file_list, 2, G.input_file_count);
G.input_file_list[G.input_file_count++] = file;
}
/* dmalloc will redefine these to it's own implementation. It is safe
* to have the prototypes here unconditionally. */
-extern void *malloc_or_warn(size_t size) FAST_FUNC;
-extern void *xmalloc(size_t size) FAST_FUNC;
-extern void *xzalloc(size_t size) FAST_FUNC;
-extern void *xrealloc(void *old, size_t size) FAST_FUNC;
+void *malloc_or_warn(size_t size) FAST_FUNC;
+void *xmalloc(size_t size) FAST_FUNC;
+void *xzalloc(size_t size) FAST_FUNC;
+void *xrealloc(void *old, size_t size) FAST_FUNC;
+#define xrealloc_vector(vector, shift, idx) \
+ xrealloc_vector_helper((vector), (sizeof((vector)[0]) << 8) + (shift), (idx))
+void* xrealloc_vector_helper(void *vector, unsigned sizeof_and_shift, int idx) FAST_FUNC;
+
extern ssize_t safe_read(int fd, void *buf, size_t count) FAST_FUNC;
extern ssize_t nonblock_safe_read(int fd, void *buf, size_t count) FAST_FUNC;
lib-y += xgetcwd.o
lib-y += xgethostbyname.o
lib-y += xreadlink.o
+lib-y += xrealloc_vector.o
# conditionally compiled objects:
lib-$(CONFIG_FEATURE_MOUNT_LOOP) += loop.o
{
savech = *p3;
*p3 = '\0';
- pr->fmt = xrealloc(pr->fmt, strlen(pr->fmt)+(p3-p2)+1);
+ pr->fmt = xrealloc(pr->fmt, strlen(pr->fmt) + (p3-p2) + 1);
strcat(pr->fmt, p2);
*p3 = savech;
p2 = p3;
// free(linebuf);
// return NULL;
//}
- linebuf = xrealloc(linebuf, idx+1);
+ linebuf = xrealloc(linebuf, idx + 1);
linebuf[idx] = '\0';
}
return linebuf;
static void add_match(char *matched)
{
- int nm = num_matches;
- int nm1 = nm + 1;
-
- matches = xrealloc(matches, nm1 * sizeof(char *));
- matches[nm] = matched;
+ matches = xrealloc_vector(matches, 4, num_matches);
+ matches[num_matches] = matched;
num_matches++;
}
}
while ((m = getmntent(mountTable)) != 0) {
+ entries = xrealloc(entries, 3, count);
+ entries[count].mnt_fsname = xstrdup(m->mnt_fsname);
+ entries[count].mnt_dir = xstrdup(m->mnt_dir);
+ entries[count].mnt_type = xstrdup(m->mnt_type);
+ entries[count].mnt_opts = xstrdup(m->mnt_opts);
+ entries[count].mnt_freq = m->mnt_freq;
+ entries[count].mnt_passno = m->mnt_passno;
i = count++;
- entries = xrealloc(entries, count * sizeof(entries[0]));
- entries[i].mnt_fsname = xstrdup(m->mnt_fsname);
- entries[i].mnt_dir = xstrdup(m->mnt_dir);
- entries[i].mnt_type = xstrdup(m->mnt_type);
- entries[i].mnt_opts = xstrdup(m->mnt_opts);
- entries[i].mnt_freq = m->mnt_freq;
- entries[i].mnt_passno = m->mnt_passno;
}
endmntent(mountTable);
for (i = 0; i < cp->size; i++)
if (cp->cache[i].id == id)
return i;
- i = cp->size++;
- cp->cache = xrealloc(cp->cache, cp->size * sizeof(*cp->cache));
+ i = cp->size;
+ cp->cache = xrealloc_vector(cp->cache, 2, cp->size++);
cp->cache[i++].id = id;
return -i;
}
for (i = 0; i < cp->size; i++)
if (cp->cache[i].id == id)
return cp->cache[i].name;
- i = cp->size++;
- cp->cache = xrealloc(cp->cache, cp->size * sizeof(*cp->cache));
+ i = cp->size;
+ cp->cache = xrealloc_vector(cp->cache, 2, cp->size++);
cp->cache[i].id = id;
/* Never fails. Generates numeric string if name isn't found */
fp(cp->cache[i].name, sizeof(cp->cache[i].name), id);
bb_perror_msg_and_die("can't read '%s'", filename);
return buf;
}
+
+/* libbb candidate */
+#if 0
+static void *xmalloc_read(int fd, size_t *sizep)
+{
+ char *buf;
+ size_t size, rd_size, total;
+ off_t to_read;
+ struct stat st;
+
+ to_read = sizep ? *sizep : INT_MAX; /* max to read */
+
+ /* Estimate file size */
+ st.st_size = 0; /* in case fstat fails, assume 0 */
+ fstat(fd, &st);
+ /* /proc/N/stat files report st_size 0 */
+ /* In order to make such files readable, we add small const */
+ size = (st.st_size | 0x3ff) + 1;
+
+ total = 0;
+ buf = NULL;
+ while (1) {
+ if (to_read < size)
+ size = to_read;
+ buf = xrealloc(buf, total + size + 1);
+ rd_size = full_read(fd, buf + total, size);
+ if ((ssize_t)rd_size < 0) { /* error */
+ free(buf);
+ return NULL;
+ }
+ total += rd_size;
+ if (rd_size < size) /* EOF */
+ break;
+ to_read -= rd_size;
+ if (to_read <= 0)
+ break;
+ /* grow by 1/8, but in [1k..64k] bounds */
+ size = ((total / 8) | 0x3ff) + 1;
+ if (size > 64*1024)
+ size = 64*1024;
+ }
+ xrealloc(buf, total + 1);
+ buf[total] = '\0';
+
+ if (sizep)
+ *sizep = total;
+ return buf;
+}
+#endif
if (group.gr_gid != gid) {
for (m = group.gr_mem; *m; m++) {
if (!strcmp(*m, user)) {
- if (!(num_groups & 7)) {
- gid_t *tmp = xrealloc(group_list,
- (num_groups+8) * sizeof(gid_t *));
- group_list = tmp;
- }
+ group_list = xrealloc_vector(group_list, 3, num_groups);
group_list[num_groups++] = group.gr_gid;
break;
}
}
reached_eof:
last_terminated = terminated;
- flines = xrealloc(flines, (max_fline+1) * sizeof(char *));
+ flines = xrealloc_vector(flines, 8, max_fline);
if (option_mask32 & FLAG_N) {
/* Width of 7 preserves tab spacing in the text */
flines[max_fline] = xasprintf(
if (terminated)
max_lineno++;
} else {
- flines[max_fline] = xrealloc(current_line, strlen(current_line)+1);
+ flines[max_fline] = xrealloc(current_line, strlen(current_line) + 1);
}
if (max_fline >= MAXLINES) {
eof_error = 0; /* Pretend we saw EOF */
/* and we didn't match it last time */
&& !(num_matches && match_lines[num_matches-1] == pos)
) {
- match_lines = xrealloc(match_lines, (num_matches+1) * sizeof(int));
+ match_lines = xrealloc_vector(match_lines, 4, num_matches);
match_lines[num_matches++] = pos;
}
pos++;
count_mp++;
/* man_path_list is NULL terminated */
man_path_list[count_mp] = NULL;
- if (!(count_mp & 0xf)) { /* 0x10, 0x20 etc */
- /* so that last valid man_path_list[] is [count_mp + 0x10] */
- man_path_list = xrealloc(man_path_list,
- (count_mp + 0x11) * sizeof(man_path_list[0]));
- }
+ man_path_list = xrealloc_vector(man_path_list, 4, count_mp);
}
if (strcmp("MANSECT", line) == 0) {
free(sec_list);
int newidx = f->header.e_shnum++;
struct obj_section *sec;
- f->sections = xrealloc(f->sections, (newidx + 1) * sizeof(sec));
+ f->sections = xrealloc_vector(f->sections, 2, newidx);
f->sections[newidx] = sec = arch_new_section();
sec->header.sh_type = SHT_PROGBITS;
{
unsigned long oldsize = sec->header.sh_size;
if (more) {
- sec->contents = xrealloc(sec->contents, sec->header.sh_size += more);
+ sec->header.sh_size += more;
+ sec->contents = xrealloc(sec->contents, sec->header.sh_size);
}
return sec->contents + oldsize;
}
retry_kern_sym_load:
if (query_module(NULL, QM_SYMBOLS, syms, bufsize, &ret)) {
if (errno == ENOSPC && bufsize < ret) {
- syms = xrealloc(syms, bufsize = ret);
+ bufsize = ret;
+ syms = xrealloc(syms, bufsize);
goto retry_kern_sym_load;
}
bb_perror_msg_and_die("kernel: QM_SYMBOLS");
if (i == f->header.e_shnum) {
struct obj_section *sec;
- f->sections = xrealloc(f->sections, (i + 1) * sizeof(sec));
+ f->sections = xrealloc(f->sections, 2, i);
f->sections[i] = sec = arch_new_section();
f->header.e_shnum = i + 1;
}
cur = module_count++;
- if (!(cur & 0xfff)) {
- modinfo = xrealloc(modinfo, sizeof(modinfo[0]) * (cur + 0x1001));
- }
+ modinfo = xrealloc_vector(modinfo, 12, cur);
modinfo[cur].pathname = xstrdup(pathname);
modinfo[cur].desc = NULL;
modinfo[cur+1].pathname = NULL;
dep = xstrndup(deps, next - deps - ext + 1);
/* Add the new dependable module name */
- current->m_depcnt++;
- current->m_deparr = xrealloc(current->m_deparr,
- sizeof(char *) * current->m_depcnt);
- current->m_deparr[current->m_depcnt - 1] = dep;
+ current->m_deparr = xrealloc_vector(current->m_deparr, 2, current->m_depcnt);
+ current->m_deparr[current->m_depcnt++] = dep;
p = next + 2;
} while (next < end);
currmap = xzalloc(sizeof(*currmap));
while ((first_word = next_word(&rest_of_line)) != NULL) {
- if (currmap->n_matches >= currmap->max_matches) {
- currmap->max_matches = currmap->max_matches * 2 + 1;
- currmap->match = xrealloc(currmap->match,
- sizeof(*currmap->match) * currmap->max_matches);
- }
+ currmap->match = xrealloc_vector(currmap->match, 4, currmap->n_matches);
currmap->match[currmap->n_matches++] = xstrdup(first_word);
}
/*currmap->max_mappings = 0; - done by xzalloc */
static ps_out_t* new_out_t(void)
{
- int i = out_cnt++;
- out = xrealloc(out, out_cnt * sizeof(*out));
- return &out[i];
+ out = xrealloc_vector(out, 2, out_cnt);
+ return &out[out_cnt++];
}
static const ps_out_t* find_out_spec(const char *name)
int n;
if (scan_mask == TOP_MASK) {
n = ntop;
- top = xrealloc(top, (++ntop) * sizeof(*top));
+ top = xrealloc_vector(top, 2, ntop++);
top[n].pid = p->pid;
top[n].ppid = p->ppid;
top[n].vsz = p->vsz;
if (!(p->mapped_ro | p->mapped_rw))
continue; /* kernel threads are ignored */
n = ntop;
- top = xrealloc(topmem, (++ntop) * sizeof(*topmem));
+ /* No bug here - top and topmem are the same */
+ top = xrealloc_vector(topmem, 2, ntop++);
strcpy(topmem[n].comm, p->comm);
topmem[n].pid = p->pid;
topmem[n].vsz = p->mapped_rw + p->mapped_ro;
if (tlen == 0)
bb_error_msg_and_die("empty long option specified");
}
- long_options = xrealloc(long_options,
- sizeof(long_options[0]) * (long_nr+2));
+//TODO: zeroing version of xrealloc_vector!
+ long_options = xrealloc_vector(long_options, 4, long_nr);
long_options[long_nr].has_arg = arg_opt;
long_options[long_nr].flag = NULL;
long_options[long_nr].val = LONG_OPT;
if (unrecognized && i == ARRAY_SIZE(mount_options)) {
// Add it to strflags, to pass on to kernel
i = *unrecognized ? strlen(*unrecognized) : 0;
- *unrecognized = xrealloc(*unrecognized, i+strlen(options)+2);
+ *unrecognized = xrealloc(*unrecognized, i + strlen(options) + 2);
// Comma separated if it's not the first one
if (i) (*unrecognized)[i++] = ',';
projects / oweals / busybox.git / commitdiff