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malloc/calloc: check for NULL always (11.1.0 gcc -fanalyzer -c backend/*.c)

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ZBarcode_Encode: don't reinit symbol->outfile, props Alonso Schaich
frontend/test_args: skip long filename tests on Windows, props Alonso Schaich
This commit is contained in:
gitlost 2021-06-29 15:43:42 +01:00
parent 8c419ab4fb
commit 368633bda4
9 changed files with 131 additions and 55 deletions
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34
backend/reedsol.c
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@ -191,14 +191,22 @@ INTERNAL void rs_encode_uint(const rs_t *rs, const int datalen, const unsigned i
// Then call rs_uint_free(&rs_uint) to free the log tables.
/* `logmod` (field characteristic) will be 2**bitlength - 1, eg 1023 for bitlength 10, 4095 for bitlength 12 */
INTERNAL void rs_uint_init_gf(rs_uint_t *rs_uint, const unsigned int prime_poly, const int logmod) {
INTERNAL int rs_uint_init_gf(rs_uint_t *rs_uint, const unsigned int prime_poly, const int logmod) {
int b, p, v;
unsigned int *logt, *alog;
b = logmod + 1;
logt = (unsigned int *) malloc(sizeof(unsigned int) * b);
alog = (unsigned int *) malloc(sizeof(unsigned int) * b * 2);
rs_uint->logt = NULL;
rs_uint->alog = NULL;
if (!(logt = (unsigned int *) malloc(sizeof(unsigned int) * b))) {
return 0;
}
if (!(alog = (unsigned int *) malloc(sizeof(unsigned int) * b * 2))) {
free(logt);
return 0;
}
// Calculate the log/alog tables
for (p = 1, v = 0; v < logmod; v++) {
@ -211,6 +219,7 @@ INTERNAL void rs_uint_init_gf(rs_uint_t *rs_uint, const unsigned int prime_poly,
}
rs_uint->logt = logt;
rs_uint->alog = alog;
return 1;
}
INTERNAL void rs_uint_init_code(rs_uint_t *rs_uint, const int nsym, int index) {
@ -219,6 +228,9 @@ INTERNAL void rs_uint_init_code(rs_uint_t *rs_uint, const int nsym, int index) {
const unsigned int *alog = rs_uint->alog;
unsigned short *rspoly = rs_uint->rspoly;
if (logt == NULL || alog == NULL) {
return;
}
rs_uint->nsym = nsym;
rspoly[0] = 1;
@ -234,7 +246,8 @@ INTERNAL void rs_uint_init_code(rs_uint_t *rs_uint, const int nsym, int index) {
}
}
INTERNAL void rs_uint_encode(const rs_uint_t *rs_uint, const int datalen, const unsigned int *data, unsigned int *res) {
INTERNAL void rs_uint_encode(const rs_uint_t *rs_uint, const int datalen, const unsigned int *data,
unsigned int *res) {
int i, k;
const unsigned int *logt = rs_uint->logt;
const unsigned int *alog = rs_uint->alog;
@ -242,6 +255,9 @@ INTERNAL void rs_uint_encode(const rs_uint_t *rs_uint, const int datalen, const
const int nsym = rs_uint->nsym;
memset(res, 0, sizeof(unsigned int) * nsym);
if (logt == NULL || alog == NULL) {
return;
}
for (i = 0; i < datalen; i++) {
unsigned int m = res[nsym - 1] ^ data[i];
if (m) {
@ -261,6 +277,12 @@ INTERNAL void rs_uint_encode(const rs_uint_t *rs_uint, const int datalen, const
}
INTERNAL void rs_uint_free(rs_uint_t *rs_uint) {
free(rs_uint->logt);
free(rs_uint->alog);
if (rs_uint->logt) {
free(rs_uint->logt);
rs_uint->logt = NULL;
}
if (rs_uint->alog) {
free(rs_uint->alog);
rs_uint->alog = NULL;
}
}