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| author | Kai Blin <kai@samba.org> | 2010-10-11 22:31:14 +0200 |
|---|---|---|
| committer | Kai Blin <kai@samba.org> | 2010-10-23 10:17:05 +0000 |
| commit | 80f30889e9c947e6ddf31efd5d07d32d1a806209 (patch) | |
| tree | 8e6483c66c582b0db72ac62eddc6eb2f8c443760 /librpc/ndr/ndr_dns.c | |
| parent | 1c25cc705762366e2525e61df3d193b2ea2106bf (diff) | |
| download | samba-80f30889e9c947e6ddf31efd5d07d32d1a806209.tar.gz samba-80f30889e9c947e6ddf31efd5d07d32d1a806209.tar.bz2 samba-80f30889e9c947e6ddf31efd5d07d32d1a806209.zip | |
s4 dns: Fix a data corruption in the dns_string parsing
Diffstat (limited to 'librpc/ndr/ndr_dns.c')
| -rw-r--r-- | librpc/ndr/ndr_dns.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/librpc/ndr/ndr_dns.c b/librpc/ndr/ndr_dns.c index 638220af4e..70d4581f58 100644 --- a/librpc/ndr/ndr_dns.c +++ b/librpc/ndr/ndr_dns.c @@ -112,28 +112,24 @@ _PUBLIC_ enum ndr_err_code ndr_pull_dns_string(struct ndr_pull *ndr, int ndr_fla return NDR_ERR_SUCCESS; } - name = NULL; + name = talloc_strdup(ndr->current_mem_ctx, ""); /* break up name into a list of components */ for (num_components=0;num_components<MAX_COMPONENTS;num_components++) { uint8_t *component = NULL; NDR_CHECK(ndr_pull_component(ndr, &component, &offset, &max_offset)); if (component == NULL) break; - if (name) { + if (num_components > 0) { name = talloc_asprintf_append_buffer(name, ".%s", component); - NDR_ERR_HAVE_NO_MEMORY(name); } else { - name = (char *)component; + name = talloc_asprintf_append_buffer(name, "%s", component); } + NDR_ERR_HAVE_NO_MEMORY(name); } if (num_components == MAX_COMPONENTS) { return ndr_pull_error(ndr, NDR_ERR_STRING, "BAD DNS NAME too many components"); } - if (num_components == 0) { - name = talloc_strdup(ndr, ""); - NDR_ERR_HAVE_NO_MEMORY(name); - } (*s) = name; ndr->offset = max_offset; |