Index: fusl/src/network/ns_parse.c |
diff --git a/fusl/src/network/ns_parse.c b/fusl/src/network/ns_parse.c |
index 687082b714c02ae4019f63d4db187c259043dc51..cfbe2e770ae38592ca7a74fcd2177b1a39845d22 100644 |
--- a/fusl/src/network/ns_parse.c |
+++ b/fusl/src/network/ns_parse.c |
@@ -5,166 +5,171 @@ |
#include <arpa/nameser.h> |
const struct _ns_flagdata _ns_flagdata[16] = { |
- { 0x8000, 15 }, |
- { 0x7800, 11 }, |
- { 0x0400, 10 }, |
- { 0x0200, 9 }, |
- { 0x0100, 8 }, |
- { 0x0080, 7 }, |
- { 0x0040, 6 }, |
- { 0x0020, 5 }, |
- { 0x0010, 4 }, |
- { 0x000f, 0 }, |
- { 0x0000, 0 }, |
- { 0x0000, 0 }, |
- { 0x0000, 0 }, |
- { 0x0000, 0 }, |
- { 0x0000, 0 }, |
- { 0x0000, 0 }, |
+ {0x8000, 15}, {0x7800, 11}, {0x0400, 10}, {0x0200, 9}, |
+ {0x0100, 8}, {0x0080, 7}, {0x0040, 6}, {0x0020, 5}, |
+ {0x0010, 4}, {0x000f, 0}, {0x0000, 0}, {0x0000, 0}, |
+ {0x0000, 0}, {0x0000, 0}, {0x0000, 0}, {0x0000, 0}, |
}; |
-unsigned ns_get16(const unsigned char *cp) |
-{ |
- return cp[0]<<8 | cp[1]; |
+unsigned ns_get16(const unsigned char* cp) { |
+ return cp[0] << 8 | cp[1]; |
} |
-unsigned long ns_get32(const unsigned char *cp) |
-{ |
- return (unsigned)cp[0]<<24 | cp[1]<<16 | cp[2]<<8 | cp[3]; |
+unsigned long ns_get32(const unsigned char* cp) { |
+ return (unsigned)cp[0] << 24 | cp[1] << 16 | cp[2] << 8 | cp[3]; |
} |
-void ns_put16(unsigned s, unsigned char *cp) |
-{ |
- *cp++ = s>>8; |
- *cp++ = s; |
+void ns_put16(unsigned s, unsigned char* cp) { |
+ *cp++ = s >> 8; |
+ *cp++ = s; |
} |
-void ns_put32(unsigned long l, unsigned char *cp) |
-{ |
- *cp++ = l>>24; |
- *cp++ = l>>16; |
- *cp++ = l>>8; |
- *cp++ = l; |
+void ns_put32(unsigned long l, unsigned char* cp) { |
+ *cp++ = l >> 24; |
+ *cp++ = l >> 16; |
+ *cp++ = l >> 8; |
+ *cp++ = l; |
} |
-int ns_initparse(const unsigned char *msg, int msglen, ns_msg *handle) |
-{ |
- int i, r; |
+int ns_initparse(const unsigned char* msg, int msglen, ns_msg* handle) { |
+ int i, r; |
- handle->_msg = msg; |
- handle->_eom = msg + msglen; |
- if (msglen < (2 + ns_s_max) * NS_INT16SZ) goto bad; |
- NS_GET16(handle->_id, msg); |
- NS_GET16(handle->_flags, msg); |
- for (i = 0; i < ns_s_max; i++) NS_GET16(handle->_counts[i], msg); |
- for (i = 0; i < ns_s_max; i++) { |
- if (handle->_counts[i]) { |
- handle->_sections[i] = msg; |
- r = ns_skiprr(msg, handle->_eom, i, handle->_counts[i]); |
- if (r < 0) return -1; |
- msg += r; |
- } else { |
- handle->_sections[i] = NULL; |
- } |
- } |
- if (msg != handle->_eom) goto bad; |
- handle->_sect = ns_s_max; |
- handle->_rrnum = -1; |
- handle->_msg_ptr = NULL; |
- return 0; |
+ handle->_msg = msg; |
+ handle->_eom = msg + msglen; |
+ if (msglen < (2 + ns_s_max) * NS_INT16SZ) |
+ goto bad; |
+ NS_GET16(handle->_id, msg); |
+ NS_GET16(handle->_flags, msg); |
+ for (i = 0; i < ns_s_max; i++) |
+ NS_GET16(handle->_counts[i], msg); |
+ for (i = 0; i < ns_s_max; i++) { |
+ if (handle->_counts[i]) { |
+ handle->_sections[i] = msg; |
+ r = ns_skiprr(msg, handle->_eom, i, handle->_counts[i]); |
+ if (r < 0) |
+ return -1; |
+ msg += r; |
+ } else { |
+ handle->_sections[i] = NULL; |
+ } |
+ } |
+ if (msg != handle->_eom) |
+ goto bad; |
+ handle->_sect = ns_s_max; |
+ handle->_rrnum = -1; |
+ handle->_msg_ptr = NULL; |
+ return 0; |
bad: |
- errno = EMSGSIZE; |
- return -1; |
+ errno = EMSGSIZE; |
+ return -1; |
} |
-int ns_skiprr(const unsigned char *ptr, const unsigned char *eom, ns_sect section, int count) |
-{ |
- const unsigned char *p = ptr; |
- int r; |
+int ns_skiprr(const unsigned char* ptr, |
+ const unsigned char* eom, |
+ ns_sect section, |
+ int count) { |
+ const unsigned char* p = ptr; |
+ int r; |
- while (count--) { |
- r = dn_skipname(p, eom); |
- if (r < 0) goto bad; |
- if (r + 2 * NS_INT16SZ > eom - p) goto bad; |
- p += r + 2 * NS_INT16SZ; |
- if (section != ns_s_qd) { |
- if (NS_INT32SZ + NS_INT16SZ > eom - p) goto bad; |
- p += NS_INT32SZ; |
- NS_GET16(r, p); |
- if (r > eom - p) goto bad; |
- p += r; |
- } |
- } |
- return p - ptr; |
+ while (count--) { |
+ r = dn_skipname(p, eom); |
+ if (r < 0) |
+ goto bad; |
+ if (r + 2 * NS_INT16SZ > eom - p) |
+ goto bad; |
+ p += r + 2 * NS_INT16SZ; |
+ if (section != ns_s_qd) { |
+ if (NS_INT32SZ + NS_INT16SZ > eom - p) |
+ goto bad; |
+ p += NS_INT32SZ; |
+ NS_GET16(r, p); |
+ if (r > eom - p) |
+ goto bad; |
+ p += r; |
+ } |
+ } |
+ return p - ptr; |
bad: |
- errno = EMSGSIZE; |
- return -1; |
+ errno = EMSGSIZE; |
+ return -1; |
} |
-int ns_parserr(ns_msg *handle, ns_sect section, int rrnum, ns_rr *rr) |
-{ |
- int r; |
+int ns_parserr(ns_msg* handle, ns_sect section, int rrnum, ns_rr* rr) { |
+ int r; |
- if ((int)section < 0 || section >= ns_s_max) goto bad; |
- if (section != handle->_sect) { |
- handle->_sect = section; |
- handle->_rrnum = 0; |
- handle->_msg_ptr = handle->_sections[section]; |
- } |
- if (rrnum == -1) rrnum = handle->_rrnum; |
- if (rrnum < 0 || rrnum >= handle->_counts[section]) goto bad; |
- if (rrnum < handle->_rrnum) { |
- handle->_rrnum = 0; |
- handle->_msg_ptr = handle->_sections[section]; |
- } |
- if (rrnum > handle->_rrnum) { |
- r = ns_skiprr(handle->_msg_ptr, handle->_eom, section, rrnum - handle->_rrnum); |
- if (r < 0) return -1; |
- handle->_msg_ptr += r; |
- handle->_rrnum = rrnum; |
- } |
- r = ns_name_uncompress(handle->_msg, handle->_eom, handle->_msg_ptr, rr->name, NS_MAXDNAME); |
- if (r < 0) return -1; |
- handle->_msg_ptr += r; |
- if (2 * NS_INT16SZ > handle->_eom - handle->_msg_ptr) goto size; |
- NS_GET16(rr->type, handle->_msg_ptr); |
- NS_GET16(rr->rr_class, handle->_msg_ptr); |
- if (section != ns_s_qd) { |
- if (NS_INT32SZ + NS_INT16SZ > handle->_eom - handle->_msg_ptr) goto size; |
- NS_GET32(rr->ttl, handle->_msg_ptr); |
- NS_GET16(rr->rdlength, handle->_msg_ptr); |
- if (rr->rdlength > handle->_eom - handle->_msg_ptr) goto size; |
- rr->rdata = handle->_msg_ptr; |
- handle->_msg_ptr += rr->rdlength; |
- } else { |
- rr->ttl = 0; |
- rr->rdlength = 0; |
- rr->rdata = NULL; |
- } |
- handle->_rrnum++; |
- if (handle->_rrnum > handle->_counts[section]) { |
- handle->_sect = section + 1; |
- if (handle->_sect == ns_s_max) { |
- handle->_rrnum = -1; |
- handle->_msg_ptr = NULL; |
- } else { |
- handle->_rrnum = 0; |
- } |
- } |
- return 0; |
+ if ((int)section < 0 || section >= ns_s_max) |
+ goto bad; |
+ if (section != handle->_sect) { |
+ handle->_sect = section; |
+ handle->_rrnum = 0; |
+ handle->_msg_ptr = handle->_sections[section]; |
+ } |
+ if (rrnum == -1) |
+ rrnum = handle->_rrnum; |
+ if (rrnum < 0 || rrnum >= handle->_counts[section]) |
+ goto bad; |
+ if (rrnum < handle->_rrnum) { |
+ handle->_rrnum = 0; |
+ handle->_msg_ptr = handle->_sections[section]; |
+ } |
+ if (rrnum > handle->_rrnum) { |
+ r = ns_skiprr(handle->_msg_ptr, handle->_eom, section, |
+ rrnum - handle->_rrnum); |
+ if (r < 0) |
+ return -1; |
+ handle->_msg_ptr += r; |
+ handle->_rrnum = rrnum; |
+ } |
+ r = ns_name_uncompress(handle->_msg, handle->_eom, handle->_msg_ptr, rr->name, |
+ NS_MAXDNAME); |
+ if (r < 0) |
+ return -1; |
+ handle->_msg_ptr += r; |
+ if (2 * NS_INT16SZ > handle->_eom - handle->_msg_ptr) |
+ goto size; |
+ NS_GET16(rr->type, handle->_msg_ptr); |
+ NS_GET16(rr->rr_class, handle->_msg_ptr); |
+ if (section != ns_s_qd) { |
+ if (NS_INT32SZ + NS_INT16SZ > handle->_eom - handle->_msg_ptr) |
+ goto size; |
+ NS_GET32(rr->ttl, handle->_msg_ptr); |
+ NS_GET16(rr->rdlength, handle->_msg_ptr); |
+ if (rr->rdlength > handle->_eom - handle->_msg_ptr) |
+ goto size; |
+ rr->rdata = handle->_msg_ptr; |
+ handle->_msg_ptr += rr->rdlength; |
+ } else { |
+ rr->ttl = 0; |
+ rr->rdlength = 0; |
+ rr->rdata = NULL; |
+ } |
+ handle->_rrnum++; |
+ if (handle->_rrnum > handle->_counts[section]) { |
+ handle->_sect = section + 1; |
+ if (handle->_sect == ns_s_max) { |
+ handle->_rrnum = -1; |
+ handle->_msg_ptr = NULL; |
+ } else { |
+ handle->_rrnum = 0; |
+ } |
+ } |
+ return 0; |
bad: |
- errno = ENODEV; |
- return -1; |
+ errno = ENODEV; |
+ return -1; |
size: |
- errno = EMSGSIZE; |
- return -1; |
+ errno = EMSGSIZE; |
+ return -1; |
} |
-int ns_name_uncompress(const unsigned char *msg, const unsigned char *eom, |
- const unsigned char *src, char *dst, size_t dstsiz) |
-{ |
- int r; |
- r = dn_expand(msg, eom, src, dst, dstsiz); |
- if (r < 0) errno = EMSGSIZE; |
- return r; |
+int ns_name_uncompress(const unsigned char* msg, |
+ const unsigned char* eom, |
+ const unsigned char* src, |
+ char* dst, |
+ size_t dstsiz) { |
+ int r; |
+ r = dn_expand(msg, eom, src, dst, dstsiz); |
+ if (r < 0) |
+ errno = EMSGSIZE; |
+ return r; |
} |