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Bug fix: Large amounts of AAIP data or many long file names could cause with zisofs an unreadable filesystem after the warning "Calculated and written ECMA-119 tree end differ"

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Thomas Schmitt 2021-02-01 18:46:34 +01:00
parent 5add62bda0
commit 058f18d37a
1 changed files with 9 additions and 4 deletions
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13
libisofs/rockridge.c
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@ -1166,7 +1166,7 @@ int susp_calc_nm_sl_al(Ecma119Image *t, Ecma119Node *n, size_t space,
size_t *su_size, size_t *ce, size_t base_ce, int flag) size_t *su_size, size_t *ce, size_t base_ce, int flag)
{ {
char *name; char *name;
size_t namelen, su_mem, ce_mem; size_t namelen, su_mem, ce_mem, ce_prepad = 0;
void *xipt; void *xipt;
size_t num_aapt = 0, sua_free = 0; size_t num_aapt = 0, sua_free = 0;
int ret; int ret;
@ -1197,7 +1197,7 @@ int susp_calc_nm_sl_al(Ecma119Image *t, Ecma119Node *n, size_t space,
#endif /* Libisofs_ce_calc_debuG */ #endif /* Libisofs_ce_calc_debuG */
*ce += BLOCK_SIZE - (base_ce % BLOCK_SIZE); ce_prepad = BLOCK_SIZE - (base_ce % BLOCK_SIZE);
} }
} }
@ -1210,8 +1210,10 @@ int susp_calc_nm_sl_al(Ecma119Image *t, Ecma119Node *n, size_t space,
if (flag & 1) { if (flag & 1) {
/* Account for 28 bytes of CE field */ /* Account for 28 bytes of CE field */
if (*su_size + 28 > space) if (*su_size + 28 > space) {
*ce += ce_prepad;
return -1; return -1;
}
*su_size += 28; *su_size += 28;
} }
@ -1242,8 +1244,10 @@ int susp_calc_nm_sl_al(Ecma119Image *t, Ecma119Node *n, size_t space,
int cew = (*ce != 0); /* are we writing to CA ? */ int cew = (*ce != 0); /* are we writing to CA ? */
dest = get_rr_fname(t, ((IsoSymlink*)n->node)->dest); dest = get_rr_fname(t, ((IsoSymlink*)n->node)->dest);
if (dest == NULL) if (dest == NULL) {
*ce += ce_prepad;
return -2; return -2;
}
prev = dest; prev = dest;
cur = strchr(prev, '/'); cur = strchr(prev, '/');
while (1) { while (1) {
@ -1405,6 +1409,7 @@ int susp_calc_nm_sl_al(Ecma119Image *t, Ecma119Node *n, size_t space,
} }
} }
*ce += ce_prepad;
return 1; return 1;
unannounced_ca:; unannounced_ca:;