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Accounting for the size of AA fields in rrip_calc_len()

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This commit is contained in:
Thomas Schmitt 2009-01-13 18:35:14 +01:00
parent f7a47baa22
commit 1267052c03
1 changed files with 52 additions and 3 deletions
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55
libisofs/rockridge.c
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@ -465,8 +465,12 @@ int rrip_add_SL(Ecma119Image *t, struct susp_info *susp, uint8_t **comp,
#ifdef Libisofs_with_aaiP #ifdef Libisofs_with_aaiP
/* ts A90112 */ /* ts A90112 */
/*
@param flag bit0= only account sizes in sua_free resp. ce_len
parameters t, susp, data may be NULL in this case
*/
static static
int susp_add_AA(Ecma119Image *t, struct susp_info *susp, uint8_t *data, int aaip_add_AA(Ecma119Image *t, struct susp_info *susp, uint8_t *data,
size_t num_data, size_t *sua_free, size_t *ce_len, int flag) size_t num_data, size_t *sua_free, size_t *ce_len, int flag)
{ {
int ret, done = 0; int ret, done = 0;
@ -474,10 +478,11 @@ int susp_add_AA(Ecma119Image *t, struct susp_info *susp, uint8_t *data,
if (*sua_free < num_data || *ce_len > 0) { if (*sua_free < num_data || *ce_len > 0) {
*ce_len += num_data; *ce_len += num_data;
*sua_free = 0;
} else { } else {
*sua_free -= num_data; *sua_free -= num_data;
} }
if (flag & 1)
return ISO_SUCCESS;
for (aapt = data; !done; aapt += aapt[2]) { for (aapt = data; !done; aapt += aapt[2]) {
done = !(aapt[4] & 1); done = !(aapt[4] & 1);
if (*ce_len > 0) { if (*ce_len > 0) {
@ -640,6 +645,12 @@ size_t rrip_calc_len(Ecma119Image *t, Ecma119Node *n, int type, size_t space,
{ {
size_t su_size; size_t su_size;
#ifdef Libisofs_with_aaiP
/* ts A90112 */
uint8_t *aapt;
size_t num_aapt = 0, sua_free = 0;
#endif
/* space min is 255 - 33 - 37 = 185 /* space min is 255 - 33 - 37 = 185
* At the same time, it is always an odd number, but we need to pad it * At the same time, it is always an odd number, but we need to pad it
* propertly to ensure the length of a directory record is a even number * propertly to ensure the length of a directory record is a even number
@ -800,6 +811,29 @@ size_t rrip_calc_len(Ecma119Image *t, Ecma119Node *n, int type, size_t space,
} }
} }
#ifdef Libisofs_with_aaiP
/* ts A90112 */
aapt = NULL;
#ifdef Libisofs_with_aaip_dummY
num_aapt = 28;
#else /* Libisofs_with_aaip_dummY */
/* >>> obtain num_aapt from node */;
num_aapt = 0;
#endif /* ! Libisofs_with_aaip_dummY */
/* let the expert decide where to add num_aapt */
sua_free = space - su_size;
aaip_add_AA(NULL, NULL, aapt, num_aapt, &sua_free, ce, 1);
su_size = space - sua_free;
#endif /* Libisofs_with_aaiP */
} else { } else {
/* "." or ".." entry */ /* "." or ".." entry */
@ -812,6 +846,14 @@ size_t rrip_calc_len(Ecma119Image *t, Ecma119Node *n, int type, size_t space,
*/ */
su_size += 7 + 28; /* SP + CE */ su_size += 7 + 28; /* SP + CE */
*ce = 182; /* ER */ *ce = 182; /* ER */
#ifdef Libisofs_with_aaiP
/* >>> account for the ER entry of AAIP */;
#endif /* Libisofs_with_aaiP */
} }
} }
@ -1212,7 +1254,7 @@ int rrip_get_susp_fields(Ecma119Image *t, Ecma119Node *n, int type,
aapt = malloc(num_aapt); aapt = malloc(num_aapt);
memcpy(aapt, dummy_aa, num_aapt); memcpy(aapt, dummy_aa, num_aapt);
ret = susp_add_AA(t, info, aapt, num_aapt, &sua_free, &ce_len, 0); ret = aaip_add_AA(t, info, aapt, num_aapt, &sua_free, &ce_len, 0);
} }
@ -1255,6 +1297,13 @@ int rrip_get_susp_fields(Ecma119Image *t, Ecma119Node *n, int type,
if (ret < 0) { if (ret < 0) {
goto add_susp_cleanup; goto add_susp_cleanup;
} }
#ifdef Libisofs_with_aaiP
/* >>> write the ER entry of AAIP : aaip_add_ER() */;
#endif /* Libisofs_with_aaiP */
} }
} }