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Code Issues Releases Activity

Don't abuse the stack when translating names.

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This commit is contained in:
Scott Long 2002-08-20 04:46:04 +00:00
parent ba77aa0d56
commit 95ec5961f6
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=102169
1 changed files with 12 additions and 10 deletions
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22
sys/fs/udf/udf_vnops.c
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@ -454,10 +454,6 @@ udf_transname(char *cs0string, char *destname, int len)
/* allocate a buffer big enough to hold an 8->16 bit expansion */
transname = uma_zalloc(udf_zone_trans, M_WAITOK);
if (transname == NULL) {
printf("udf: out of memory?\n");
return 0;
}
if ((unilen = udf_UncompressUnicode(len, cs0string, transname)) == -1) {
printf("udf: Unicode translation failed\n");
@ -490,16 +486,22 @@ udf_transname(char *cs0string, char *destname, int len)
static int
udf_cmpname(char *cs0string, char *cmpname, int cs0len, int cmplen)
{
char transname[MAXNAMLEN+1]; /* XXX stack */
char *transname;
int error = 0;
if ((cs0len = udf_transname(cs0string, &transname[0], cs0len)) == 0)
return -1;
/* This is overkill, but not worth creating a new zone */
transname = uma_zalloc(udf_zone_trans, M_WAITOK);
cs0len = udf_transname(cs0string, transname, cs0len);
/* Easy check. If they aren't the same length, they aren't equal */
if (cs0len != cmplen)
return -1;
if ((cs0len == 0) || (cs0len != cmplen))
error = -1;
else
error = bcmp(transname, cmpname, cmplen);
return (bcmp(transname, cmpname, cmplen));
uma_zfree(udf_zone_trans, transname);
return (error);
}
struct udf_uiodir {