doxygen and other cleanups

svn:r13440

12 files changed, 51 insertions, 40 deletions

diff --git a/src/common/aes.c b/src/common/aes.c
index cd8317dd11..96d5ca4126 100644
--- a/src/common/aes.c
+++ b/src/common/aes.c
@@ -286,7 +286,7 @@ aes_crypt(aes_cnt_cipher_t *cipher, const char *input, size_t len,
 
   /* XXXX This function is up to 5% of our runtime in some profiles;
    * we should look into unrolling some of the loops; taking advantage
-   * of alignmement, using a bigger buffer, and so on. Not till after 0.1.2.x,
+   * of alignment, using a bigger buffer, and so on. Not till after 0.1.2.x,
    * though. */
   int c = cipher->pos;
   if (PREDICT_UNLIKELY(!len)) return;
@@ -322,7 +322,7 @@ aes_crypt_inplace(aes_cnt_cipher_t *cipher, char *data, size_t len)
 
   /* XXXX This function is up to 5% of our runtime in some profiles;
    * we should look into unrolling some of the loops; taking advantage
-   * of alignmement, using a bigger buffer, and so on. Not till after 0.1.2.x,
+   * of alignment, using a bigger buffer, and so on. Not till after 0.1.2.x,
    * though. */
   int c = cipher->pos;
   if (PREDICT_UNLIKELY(!len)) return;
diff --git a/src/common/crypto.c b/src/common/crypto.c
index 01e32524c6..cd10e649c4 100644
--- a/src/common/crypto.c
+++ b/src/common/crypto.c
@@ -1550,12 +1550,12 @@ crypto_dh_compute_secret(crypto_dh_env_t *dh,
     goto error;
   }
   secret_len = result;
-  /* sometimes secret_len might be less than 128, e.g., 127. that's ok. */
+  /* sometimes secret_len might be less than 128, e.g., 127. that's ok. -RD */
   /* Actually, http://www.faqs.org/rfcs/rfc2631.html says:
    *   Leading zeros MUST be preserved, so that ZZ occupies as many
    *   octets as p. For instance, if p is 1024 bits, ZZ should be 128
    *   bytes long.
-   * What are the security implications here?
+   * XXX021 What are the security implications here? -NM
    */
   if (crypto_expand_key_material(secret_tmp, secret_len,
                                  secret_out, secret_bytes_out)<0)
@@ -1578,7 +1578,7 @@ crypto_dh_compute_secret(crypto_dh_env_t *dh,
 
 /** Given <b>key_in_len</b> bytes of negotiated randomness in <b>key_in</b>
  * ("K"), expand it into <b>key_out_len</b> bytes of negotiated key material in
- * <b>key_out</b> by taking the first key_out_len bytes of
+ * <b>key_out</b> by taking the first <b>key_out_len</b> bytes of
  *    H(K | [00]) | H(K | [01]) | ....
  *
  * Return 0 on success, -1 on failure.
@@ -1710,7 +1710,7 @@ crypto_seed_rng(void)
 #endif
 }
 
-/** Write n bytes of strong random data to <b>to</b>. Return 0 on
+/** Write <b>n</b> bytes of strong random data to <b>to</b>. Return 0 on
  * success, -1 on failure.
  */
 int
@@ -1725,7 +1725,7 @@ crypto_rand(char *to, size_t n)
 }
 
 /** Return a pseudorandom integer, chosen uniformly from the values
- * between 0 and max-1. */
+ * between 0 and <b>max</b>-1. */
 int
 crypto_rand_int(unsigned int max)
 {
@@ -1746,8 +1746,8 @@ crypto_rand_int(unsigned int max)
   }
 }
 
-/** Return a pseudorandom integer, chosen uniformly from the values
- * between 0 and max-1. */
+/** Return a pseudorandom 64-bit integer, chosen uniformly from the values
+ * between 0 and <b>max</b>-1. */
 uint64_t
 crypto_rand_uint64(uint64_t max)
 {
@@ -1768,9 +1768,10 @@ crypto_rand_uint64(uint64_t max)
   }
 }
 
-/** Generate and return a new random hostname starting with prefix, ending
- * with suffix, and containing between min_rand_len and max_rand_len random
- * base32 characters between. */
+/** Generate and return a new random hostname starting with <b>prefix</b>,
+ * ending with <b>suffix</b>, and containing no less than
+ * <b>min_rand_len</b> and no more than <b>max_rand_len</b> random base32
+ * characters between. */
 char *
 crypto_random_hostname(int min_rand_len, int max_rand_len, const char *prefix,
                        const char *suffix)
@@ -1799,8 +1800,8 @@ crypto_random_hostname(int min_rand_len, int max_rand_len, const char *prefix,
   return result;
 }
 
-/** Return a randomly chosen element of sl; or NULL if sl is empty.
- */
+/** Return a randomly chosen element of <b>sl</b>; or NULL if <b>sl</b>
+ * is empty. */
 void *
 smartlist_choose(const smartlist_t *sl)
 {
@@ -1811,7 +1812,7 @@ smartlist_choose(const smartlist_t *sl)
   return NULL; /* no elements to choose from */
 }
 
-/** Scramble the elements of sl into a random order. */
+/** Scramble the elements of <b>sl</b> into a random order. */
 void
 smartlist_shuffle(smartlist_t *sl)
 {
@@ -1834,7 +1835,7 @@ smartlist_shuffle(smartlist_t *sl)
 int
 base64_encode(char *dest, size_t destlen, const char *src, size_t srclen)
 {
-  /* XXXX we might want to rewrite this along the lines of base64_decode, if
+  /* FFFF we might want to rewrite this along the lines of base64_decode, if
    * it ever shows up in the profile. */
   EVP_ENCODE_CTX ctx;
   int len, ret;
diff --git a/src/common/mempool.c b/src/common/mempool.c
index 43f10c1e44..7e2369fc43 100644
--- a/src/common/mempool.c
+++ b/src/common/mempool.c
@@ -204,7 +204,7 @@ add_newly_used_chunk_to_used_list(mp_pool_t *pool, mp_chunk_t *chunk)
   ASSERT(!chunk->prev);
 }
 
-/** Return an newly allocated item from <b>pool</b>. */
+/** Return a newly allocated item from <b>pool</b>. */
 void *
 mp_pool_get(mp_pool_t *pool)
 {
diff --git a/src/common/mempool.h b/src/common/mempool.h
index 2c5c925f77..2344c01cba 100644
--- a/src/common/mempool.h
+++ b/src/common/mempool.h
@@ -50,11 +50,11 @@ struct mp_pool_t {
    * padding. */
   size_t item_alloc_size;
 #ifdef MEMPOOL_STATS
-  /** Total number of items allocated ever */
+  /** Total number of items allocated ever. */
   uint64_t total_items_allocated;
-  /** Total number of chunks allocated ever */
+  /** Total number of chunks allocated ever. */
   uint64_t total_chunks_allocated;
-  /** Total number of chunks freed ever */
+  /** Total number of chunks freed ever. */
   uint64_t total_chunks_freed;
 #endif
 };
diff --git a/src/common/tortls.c b/src/common/tortls.c
index 55bdfcd763..51ce4a6c3a 100644
--- a/src/common/tortls.c
+++ b/src/common/tortls.c
@@ -322,7 +322,7 @@ always_accept_verify_cb(int preverify_ok,
   return 1;
 }
 
-/** Return a newly allocated X509 name with commonName <b>cname</b> */
+/** Return a newly allocated X509 name with commonName <b>cname</b>. */
 static X509_NAME *
 tor_x509_name_new(const char *cname)
 {
diff --git a/src/common/util.c b/src/common/util.c
index 0631fdcb8f..8d1d08a8be 100644
--- a/src/common/util.c
+++ b/src/common/util.c
@@ -707,7 +707,7 @@ tor_parse_long(const char *s, int base, long min, long max,
   CHECK_STRTOX_RESULT();
 }
 
-/** As tor_parse_long, but return an unsigned long. */
+/** As tor_parse_long(), but return an unsigned long. */
 unsigned long
 tor_parse_ulong(const char *s, int base, unsigned long min,
                 unsigned long max, int *ok, char **next)
diff --git a/src/or/circuitbuild.c b/src/or/circuitbuild.c
index c295d8aada..3216433a80 100644
--- a/src/or/circuitbuild.c
+++ b/src/or/circuitbuild.c
@@ -2822,15 +2822,23 @@ getinfo_helper_entry_guards(control_connection_t *conn,
   return 0;
 }
 
-/** DOCDOC arma */
+/** Information about a configured bridge. Currently this just matches the
+ * ones in the torrc file, but one day we may be able to learn about new
+ * bridges on our own, and remember them in the state file. */
 typedef struct {
+  /** IPv4 address of the bridge. */
   uint32_t addr;
+  /** TLS port for the bridge. */
   uint16_t port;
+  /** Expected identity digest, or all \0's if we don't know what the
+   * digest should be. */
   char identity[DIGEST_LEN];
+  /** When should we next try to fetch a descriptor for this bridge? */
   download_status_t fetch_status;
 } bridge_info_t;
 
-/** A list of known bridges. */
+/** A list of configured bridges. Whenever we actually get a descriptor
+ * for one, we add it as an entry guard. */
 static smartlist_t *bridge_list = NULL;
 
 /** Initialize the bridge list to empty, creating it if needed. */
diff --git a/src/or/connection_or.c b/src/or/connection_or.c
index f2bd54a494..79e7be2c21 100644
--- a/src/or/connection_or.c
+++ b/src/or/connection_or.c
@@ -174,13 +174,14 @@ var_cell_new(uint16_t payload_len)
   return cell;
 }
 
-/** Release all space held by <b>cell</b> */
+/** Release all space held by <b>cell</b>. */
 void
 var_cell_free(var_cell_t *cell)
 {
   tor_free(cell);
 }
 
+/** We've received an EOF from <b>conn</b>. Mark it for close and return. */
 int
 connection_or_reached_eof(or_connection_t *conn)
 {
diff --git a/src/or/directory.c b/src/or/directory.c
index 31e4d67d6c..8ca183cfe6 100644
--- a/src/or/directory.c
+++ b/src/or/directory.c
@@ -1876,7 +1876,7 @@ connection_dir_client_reached_eof(dir_connection_t *conn)
   return 0;
 }
 
-/** Called when a directory connection reaches EOF */
+/** Called when a directory connection reaches EOF. */
 int
 connection_dir_reached_eof(dir_connection_t *conn)
 {
diff --git a/src/or/networkstatus.c b/src/or/networkstatus.c
index 972b16e0f2..6ac4e2c6ad 100644
--- a/src/or/networkstatus.c
+++ b/src/or/networkstatus.c
@@ -786,7 +786,7 @@ networkstatus_vote_find_entry(networkstatus_t *ns, const char *digest)
 /*XXXX make this static once functions are moved into this file. */
 /** Search the routerstatuses in <b>ns</b> for one whose identity digest is
  * <b>digest</b>.  Return value and set *<b>found_out</b> as for
- * smartlist_besearch_idx(). */
+ * smartlist_bsearch_idx(). */
 int
 networkstatus_vote_find_entry_idx(networkstatus_t *ns,
                                   const char *digest, int *found_out)
diff --git a/src/or/rephist.c b/src/or/rephist.c
index 6f973be61b..edeb43444f 100644
--- a/src/or/rephist.c
+++ b/src/or/rephist.c
@@ -19,9 +19,9 @@ static void bw_arrays_init(void);
 static void predicted_ports_init(void);
 static void hs_usage_init(void);
 
-/** Total number of bytes currently allocated in fields used by rephist.c */
+/** Total number of bytes currently allocated in fields used by rephist.c. */
 uint64_t rephist_total_alloc=0;
-/** Number of or_history_t obects currently allocated */
+/** Number of or_history_t objects currently allocated. */
 uint32_t rephist_total_num=0;
 
 /** If the total weighted run count of all runs for a router ever falls
diff --git a/src/or/test.c b/src/or/test.c
index 4b8081bf0f..d390009b8f 100644
--- a/src/or/test.c
+++ b/src/or/test.c
@@ -1081,20 +1081,20 @@ _test_eq_ip6(struct in6_addr *a, struct in6_addr *b, const char *e1,
 #define test_eq_ip6(a,b) _test_eq_ip6((a),(b),#a,#b,__LINE__)
 
 /** Helper: Assert that two strings both decode as IPv6 addresses with
- * tor_inet_pton, and both decode to the same address. */
+ * tor_inet_pton(), and both decode to the same address. */
 #define test_pton6_same(a,b) STMT_BEGIN                \
      test_eq(tor_inet_pton(AF_INET6, a, &a1), 1);      \
      test_eq(tor_inet_pton(AF_INET6, b, &a2), 1);      \
     _test_eq_ip6(&a1,&a2,#a,#b,__LINE__);              \
   STMT_END
 
-/** Helper: Assert that <b>a</b> is recognized as a bed IPv6 address by
- * tor_inet_pton. */
+/** Helper: Assert that <b>a</b> is recognized as a bad IPv6 address by
+ * tor_inet_pton(). */
 #define test_pton6_bad(a)                       \
   test_eq(0, tor_inet_pton(AF_INET6, a, &a1))
 
-/** Helper: assert that <b>a</b> when parsed by tor_inet_pton and displayed
- * with tor_inet_ntop, yields <b>b</b>. Also assert that <b>b</b> parses to
+/** Helper: assert that <b>a</b>, when parsed by tor_inet_pton() and displayed
+ * with tor_inet_ntop(), yields <b>b</b>. Also assert that <b>b</b> parses to
  * the same value as <b>a</b>. */
 #define test_ntop6_reduces(a,b) STMT_BEGIN                              \
     test_eq(tor_inet_pton(AF_INET6, a, &a1), 1);                        \
@@ -1103,8 +1103,8 @@ _test_eq_ip6(struct in6_addr *a, struct in6_addr *b, const char *e1,
     _test_eq_ip6(&a1, &a2, a, b, __LINE__);                             \
   STMT_END
 
-/** Helper: assert that <b>a</a> parses by tor_inet_pton into a address that
- * passes tor_addr_is_internal with for_listening */
+/** Helper: assert that <b>a</a> parses by tor_inet_pton() into a address that
+ * passes tor_addr_is_internal() with <b>for_listening</b> */
 #define test_internal_ip(a,for_listening) STMT_BEGIN           \
     test_eq(tor_inet_pton(AF_INET6, a, &t1.addr.in6_addr), 1); \
     t1.family = AF_INET6;                                      \
@@ -1112,8 +1112,8 @@ _test_eq_ip6(struct in6_addr *a, struct in6_addr *b, const char *e1,
       test_fail_msg( a "was not internal.");                   \
   STMT_END
 
-/** Helper: assert that <b>a</a> parses by tor_inet_pton into a address that
- * does not pass tor_addr_is_internal with for_listening. */
+/** Helper: assert that <b>a</a> parses by tor_inet_pton() into a address that
+ * does not pass tor_addr_is_internal() with <b>for_listening</b>. */
 #define test_external_ip(a,for_listening) STMT_BEGIN           \
     test_eq(tor_inet_pton(AF_INET6, a, &t1.addr.in6_addr), 1); \
     t1.family = AF_INET6;                                      \
@@ -1121,8 +1121,9 @@ _test_eq_ip6(struct in6_addr *a, struct in6_addr *b, const char *e1,
       test_fail_msg(a  "was not external.");                   \
   STMT_END
 
-/** Helper: Assert that a and b, when parsed by tor_inet_pton, give addresses
- * that compare in the order defined by op with tor_addr_compare(). */
+/** Helper: Assert that <b>a</b> and <b>b</b>, when parsed by
+ * tor_inet_pton(), give addresses that compare in the order defined by
+ * <b>op</b> with tor_addr_compare(). */
 #define test_addr_compare(a, op, b) STMT_BEGIN                    \
     test_eq(tor_inet_pton(AF_INET6, a, &t1.addr.in6_addr), 1);    \
     test_eq(tor_inet_pton(AF_INET6, b, &t2.addr.in6_addr), 1);    \