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fix issue #22: add toml_set_memutil

This commit is contained in:
CK Tan 2019-09-26 22:28:23 -07:00
parent 4a31cd8cbf
commit 9394192bfc
2 changed files with 111 additions and 82 deletions
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106
toml.c
View File

@ -1,4 +1,5 @@
/*
MIT License
Copyright (c) 2017 - 2019 CK Tan
@ -21,6 +22,7 @@ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
#define _POSIX_C_SOURCE 200809L
#include <stdio.h>
@ -33,11 +35,35 @@ SOFTWARE.
#include <string.h>
#include "toml.h"
static void* (*ppmalloc)(size_t) = malloc;
static void (*ppfree)(void*) = free;
static void* (*ppcalloc)(size_t, size_t) = calloc;
static void* (*pprealloc)(void*, size_t) = realloc;
void toml_set_memutil(void* (*xxmalloc)(size_t),
void (*xxfree)(void*),
void* (*xxcalloc)(size_t, size_t),
void* (*xxrealloc)(void*, size_t))
{
ppmalloc = xxmalloc;
ppfree = xxfree;
ppcalloc = xxcalloc;
pprealloc = xxrealloc;
}
#define MALLOC(a) ppmalloc(a)
#define FREE(a) ppfree(a)
#define CALLOC(a,b) ppcalloc(a,b)
#define REALLOC(a,b) pprealloc(a,b)
#ifdef _WIN32
char* strndup(const char* s, size_t n)
{
size_t len = strnlen(s, n);
char* p = malloc(len+1);
char* p = MALLOC(len+1);
if (p) {
memcpy(p, s, len);
p[len] = 0;
@ -263,7 +289,7 @@ struct toml_table_t {
};
static inline void xfree(const void* x) { if (x) free((void*)x); }
static inline void xfree(const void* x) { if (x) FREE((void*)x); }
enum tokentype_t {
@ -390,7 +416,7 @@ static char* normalize_string(const char* src, int srclen,
/* scan forward on src */
for (;;) {
if (off >= max - 10) { /* have some slack for misc stuff */
char* x = realloc(dst, max += 100);
char* x = REALLOC(dst, max += 100);
if (!x) {
xfree(dst);
snprintf(errbuf, errbufsz, "out of memory");
@ -412,7 +438,7 @@ static char* normalize_string(const char* src, int srclen,
/* ch was backslash. we expect the escape char. */
if (sp >= sq) {
snprintf(errbuf, errbufsz, "last backslash is invalid");
free(dst);
xfree(dst);
return 0;
}
@ -436,7 +462,7 @@ static char* normalize_string(const char* src, int srclen,
for (int i = 0; i < nhex; i++) {
if (sp >= sq) {
snprintf(errbuf, errbufsz, "\\%c expects %d hex chars", ch, nhex);
free(dst);
xfree(dst);
return 0;
}
ch = *sp++;
@ -445,7 +471,7 @@ static char* normalize_string(const char* src, int srclen,
: (('A' <= ch && ch <= 'F') ? ch - 'A' + 10 : -1);
if (-1 == v) {
snprintf(errbuf, errbufsz, "invalid hex chars for \\u or \\U");
free(dst);
xfree(dst);
return 0;
}
ucs = ucs * 16 + v;
@ -453,7 +479,7 @@ static char* normalize_string(const char* src, int srclen,
int n = toml_ucs_to_utf8(ucs, &dst[off]);
if (-1 == n) {
snprintf(errbuf, errbufsz, "illegal ucs code in \\u or \\U");
free(dst);
xfree(dst);
return 0;
}
off += n;
@ -469,7 +495,7 @@ static char* normalize_string(const char* src, int srclen,
case '\\': ch = '\\'; break;
default:
snprintf(errbuf, errbufsz, "illegal escape char \\%c", ch);
free(dst);
xfree(dst);
return 0;
}
@ -517,7 +543,7 @@ static char* normalize_key(context_t* ctx, token_t strtok)
/* newlines are not allowed in keys */
if (strchr(ret, '\n')) {
free(ret);
xfree(ret);
e_bad_key_error(ctx, lineno);
return 0; /* not reached */
}
@ -594,7 +620,7 @@ static toml_keyval_t* create_keyval_in_table(context_t* ctx, toml_table_t* tab,
/* if key exists: error out. */
toml_keyval_t* dest = 0;
if (check_key(tab, newkey, 0, 0, 0)) {
free(newkey);
xfree(newkey);
e_key_exists_error(ctx, keytok);
return 0; /* not reached */
}
@ -602,15 +628,15 @@ static toml_keyval_t* create_keyval_in_table(context_t* ctx, toml_table_t* tab,
/* make a new entry */
int n = tab->nkval;
toml_keyval_t** base;
if (0 == (base = (toml_keyval_t**) realloc(tab->kval, (n+1) * sizeof(*base)))) {
free(newkey);
if (0 == (base = (toml_keyval_t**) REALLOC(tab->kval, (n+1) * sizeof(*base)))) {
xfree(newkey);
e_outofmemory(ctx, FLINE);
return 0; /* not reached */
}
tab->kval = base;
if (0 == (base[n] = (toml_keyval_t*) calloc(1, sizeof(*base[n])))) {
free(newkey);
if (0 == (base[n] = (toml_keyval_t*) CALLOC(1, sizeof(*base[n])))) {
xfree(newkey);
e_outofmemory(ctx, FLINE);
return 0; /* not reached */
}
@ -634,7 +660,7 @@ static toml_table_t* create_keytable_in_table(context_t* ctx, toml_table_t* tab,
/* if key exists: error out */
toml_table_t* dest = 0;
if (check_key(tab, newkey, 0, 0, &dest)) {
free(newkey); /* don't need this anymore */
xfree(newkey); /* don't need this anymore */
/* special case: if table exists, but was created implicitly ... */
if (dest && dest->implicit) {
@ -649,15 +675,15 @@ static toml_table_t* create_keytable_in_table(context_t* ctx, toml_table_t* tab,
/* create a new table entry */
int n = tab->ntab;
toml_table_t** base;
if (0 == (base = (toml_table_t**) realloc(tab->tab, (n+1) * sizeof(*base)))) {
free(newkey);
if (0 == (base = (toml_table_t**) REALLOC(tab->tab, (n+1) * sizeof(*base)))) {
xfree(newkey);
e_outofmemory(ctx, FLINE);
return 0; /* not reached */
}
tab->tab = base;
if (0 == (base[n] = (toml_table_t*) calloc(1, sizeof(*base[n])))) {
free(newkey);
if (0 == (base[n] = (toml_table_t*) CALLOC(1, sizeof(*base[n])))) {
xfree(newkey);
e_outofmemory(ctx, FLINE);
return 0; /* not reached */
}
@ -684,7 +710,7 @@ static toml_array_t* create_keyarray_in_table(context_t* ctx,
/* if key exists: error out */
toml_array_t* dest = 0;
if (check_key(tab, newkey, 0, &dest, 0)) {
free(newkey); /* don't need this anymore */
xfree(newkey); /* don't need this anymore */
/* special case skip if exists? */
if (skip_if_exist) return dest;
@ -696,15 +722,15 @@ static toml_array_t* create_keyarray_in_table(context_t* ctx,
/* make a new array entry */
int n = tab->narr;
toml_array_t** base;
if (0 == (base = (toml_array_t**) realloc(tab->arr, (n+1) * sizeof(*base)))) {
free(newkey);
if (0 == (base = (toml_array_t**) REALLOC(tab->arr, (n+1) * sizeof(*base)))) {
xfree(newkey);
e_outofmemory(ctx, FLINE);
return 0; /* not reached */
}
tab->arr = base;
if (0 == (base[n] = (toml_array_t*) calloc(1, sizeof(*base[n])))) {
free(newkey);
if (0 == (base[n] = (toml_array_t*) CALLOC(1, sizeof(*base[n])))) {
xfree(newkey);
e_outofmemory(ctx, FLINE);
return 0; /* not reached */
}
@ -722,13 +748,13 @@ static toml_array_t* create_array_in_array(context_t* ctx,
{
int n = parent->nelem;
toml_array_t** base;
if (0 == (base = (toml_array_t**) realloc(parent->u.arr, (n+1) * sizeof(*base)))) {
if (0 == (base = (toml_array_t**) REALLOC(parent->u.arr, (n+1) * sizeof(*base)))) {
e_outofmemory(ctx, FLINE);
return 0; /* not reached */
}
parent->u.arr = base;
if (0 == (base[n] = (toml_array_t*) calloc(1, sizeof(*base[n])))) {
if (0 == (base[n] = (toml_array_t*) CALLOC(1, sizeof(*base[n])))) {
e_outofmemory(ctx, FLINE);
return 0; /* not reached */
}
@ -743,13 +769,13 @@ static toml_table_t* create_table_in_array(context_t* ctx,
{
int n = parent->nelem;
toml_table_t** base;
if (0 == (base = (toml_table_t**) realloc(parent->u.tab, (n+1) * sizeof(*base)))) {
if (0 == (base = (toml_table_t**) REALLOC(parent->u.tab, (n+1) * sizeof(*base)))) {
e_outofmemory(ctx, FLINE);
return 0; /* not reached */
}
parent->u.tab = base;
if (0 == (base[n] = (toml_table_t*) calloc(1, sizeof(*base[n])))) {
if (0 == (base[n] = (toml_table_t*) CALLOC(1, sizeof(*base[n])))) {
e_outofmemory(ctx, FLINE);
return 0; /* not reached */
}
@ -852,7 +878,7 @@ static void parse_array(context_t* ctx, toml_array_t* arr)
}
/* make a new value in array */
char** tmp = (char**) realloc(arr->u.val, (arr->nelem+1) * sizeof(*tmp));
char** tmp = (char**) REALLOC(arr->u.val, (arr->nelem+1) * sizeof(*tmp));
if (!tmp) {
e_outofmemory(ctx, FLINE);
return; /* not reached */
@ -1083,14 +1109,14 @@ static void walk_tabpath(context_t* ctx)
default:
{ /* Not found. Let's create an implicit table. */
int n = curtab->ntab;
toml_table_t** base = (toml_table_t**) realloc(curtab->tab, (n+1) * sizeof(*base));
toml_table_t** base = (toml_table_t**) REALLOC(curtab->tab, (n+1) * sizeof(*base));
if (0 == base) {
e_outofmemory(ctx, FLINE);
return; /* not reached */
}
curtab->tab = base;
if (0 == (base[n] = (toml_table_t*) calloc(1, sizeof(*base[n])))) {
if (0 == (base[n] = (toml_table_t*) CALLOC(1, sizeof(*base[n])))) {
e_outofmemory(ctx, FLINE);
return; /* not reached */
}
@ -1139,7 +1165,7 @@ static void parse_select(context_t* ctx)
/* For [x.y.z] or [[x.y.z]], remove z from tpath.
*/
token_t z = ctx->tpath.tok[ctx->tpath.top-1];
free(ctx->tpath.key[ctx->tpath.top-1]);
xfree(ctx->tpath.key[ctx->tpath.top-1]);
ctx->tpath.top--;
/* set up ctx->curtab */
@ -1166,14 +1192,14 @@ static void parse_select(context_t* ctx)
toml_table_t* dest;
{
int n = arr->nelem;
toml_table_t** base = realloc(arr->u.tab, (n+1) * sizeof(*base));
toml_table_t** base = REALLOC(arr->u.tab, (n+1) * sizeof(*base));
if (0 == base) {
e_outofmemory(ctx, FLINE);
return; /* not reached */
}
arr->u.tab = base;
if (0 == (base[n] = calloc(1, sizeof(*base[n])))) {
if (0 == (base[n] = CALLOC(1, sizeof(*base[n])))) {
e_outofmemory(ctx, FLINE);
return; /* not reached */
}
@ -1235,7 +1261,7 @@ toml_table_t* toml_parse(char* conf,
ctx.tok.len = 0;
// make a root table
if (0 == (ctx.root = calloc(1, sizeof(*ctx.root)))) {
if (0 == (ctx.root = CALLOC(1, sizeof(*ctx.root)))) {
/* do not call outofmemory() here... setjmp not done yet */
snprintf(ctx.errbuf, ctx.errbufsz, "ERROR: out of memory (%s)", FLINE);
return 0;
@ -1296,7 +1322,7 @@ toml_table_t* toml_parse_file(FILE* fp,
/* prime the buf[] */
bufsz = 1000;
if (! (buf = malloc(bufsz + 1))) {
if (! (buf = MALLOC(bufsz + 1))) {
snprintf(errbuf, errbufsz, "out of memory");
return 0;
}
@ -1306,7 +1332,7 @@ toml_table_t* toml_parse_file(FILE* fp,
bufsz += 1000;
/* Allocate 1 extra byte because we will tag on a NUL */
char* x = realloc(buf, bufsz + 1);
char* x = REALLOC(buf, bufsz + 1);
if (!x) {
snprintf(errbuf, errbufsz, "out of memory");
xfree(buf);
@ -1319,18 +1345,18 @@ toml_table_t* toml_parse_file(FILE* fp,
if (ferror(fp)) {
snprintf(errbuf, errbufsz, "%s",
errno ? strerror(errno) : "Error reading file");
free(buf);
xfree(buf);
return 0;
}
off += n;
}
/* tag on a NUL to cap the string */
buf[off] = 0; /* we accounted for this byte in the realloc() above. */
buf[off] = 0; /* we accounted for this byte in the REALLOC() above. */
/* parse it, cleanup and finish */
toml_table_t* ret = toml_parse(buf, errbuf, errbufsz);
free(buf);
xfree(buf);
return ret;
}

5
toml.h
View File

@ -137,6 +137,9 @@ TOML_EXTERN int toml_rtots(const char* s, toml_timestamp_t* ret);
/* misc */
TOML_EXTERN int toml_utf8_to_ucs(const char* orig, int len, int64_t* ret);
TOML_EXTERN int toml_ucs_to_utf8(int64_t code, char buf[6]);
TOML_EXTERN void toml_set_memutil(void* (*xxmalloc)(size_t),
void (*xxfree)(void*),
void* (*xxcalloc)(size_t, size_t),
void* (*xxrealloc)(void*, size_t));
#endif /* TOML_H */