X-Git-Url: http://git.madism.org/?p=apps%2Fmadmutt.git;a=blobdiff_plain;f=hcache.c;h=953e70f1e226aa175cce07bd04f5d8fc99cfa40d;hp=c6892ff55fcef0fa95b04855b7c54fe2b711c214;hb=32962d1bbc4260395f7afa183e980a4d4dc3f990;hpb=0ecf3d77dc355f4bea99910a9dfb6f5866c9f73a diff --git a/hcache.c b/hcache.c index c6892ff..953e70f 100644 --- a/hcache.c +++ b/hcache.c @@ -9,95 +9,64 @@ * please see the file GPL in the top level source directory. */ -# if HAVE_INTTYPES_H -# include -# else -# if HAVE_STDINT_H -# include -# endif -# endif - -#if HAVE_CONFIG_H -#include "config.h" -#endif /* HAVE_CONFIG_H */ +#include #ifdef USE_HCACHE -#if HAVE_QDBM +#define MUTTNG_HCACHE_ID "0x004" + +#if defined(HAVE_QDBM) #include #include #include -#elif HAVE_GDBM +#elif defined(HAVE_GDBM) #include -#elif HAVE_DB4 +#elif defined(HAVE_DB4) #include #endif -#include -#include -#if HAVE_SYS_TIME_H -#include -#endif +#include +#include + +#include "charset.h" #include "mutt.h" -#ifdef USE_IMAP -#include "message.h" -#endif -#include "mime.h" +#include #include "mx.h" #include "lib.h" -#include "md5.h" -#include "lib/mem.h" -#include "lib/debug.h" - -#if HAVE_QDBM -static struct - header_cache { +struct header_cache { +#if defined(HAVE_QDBM) VILLA *db; char *folder; unsigned int crc; -} HEADER_CACHE; -#elif HAVE_GDBM -static struct - header_cache { +#elif defined(HAVE_GDBM) GDBM_FILE db; char *folder; unsigned int crc; -} HEADER_CACHE; -#elif HAVE_DB4 -static struct - header_cache { +#elif defined(HAVE_DB4) DB_ENV *env; DB *db; unsigned int crc; int fd; char lockfile[_POSIX_PATH_MAX]; -} HEADER_CACHE; #endif +}; typedef union { struct timeval timeval; unsigned long uid_validity; } validate; -static void *lazy_malloc (size_t siz) -{ - if (0 < siz && siz < 4096) { - siz = 4096; - } +#define UPPER4K(i) ((i & ~(4096 - 1)) + 4096) - return safe_malloc (siz); +static unsigned char *lazy_malloc(ssize_t siz) +{ + return p_new(unsigned char, UPPER4K(siz)); } -static void lazy_realloc (void *ptr, size_t siz) +static void lazy_realloc(unsigned char **p, ssize_t siz) { - void **p = (void **) ptr; - - if (p != NULL && 0 < siz && siz < 4096) { - return; - } - - safe_realloc (ptr, siz); + p_realloc(p, UPPER4K(siz)); } static unsigned char *dump_int (unsigned int i, unsigned char *d, int *off) @@ -125,7 +94,7 @@ static unsigned char *dump_char (char *c, unsigned char *d, int *off) return d; } - size = safe_strlen (c) + 1; + size = m_strlen(c) + 1; d = dump_int (size, d, off); lazy_realloc (&d, *off + size); memcpy (d + *off, c, size); @@ -134,25 +103,6 @@ static unsigned char *dump_char (char *c, unsigned char *d, int *off) return d; } -#if 0 -static unsigned char *dump_char_size (char *c, unsigned char *d, int *off, - ssize_t size) -{ - if (c == NULL) { - size = 0; - d = dump_int (size, d, off); - return d; - } - - d = dump_int (size, d, off); - lazy_realloc (&d, *off + size); - memcpy (d + *off, c, size); - *off += size; - - return d; -} -#endif - static void restore_char (char **c, const unsigned char *d, int *off) { unsigned int size; @@ -164,12 +114,11 @@ static void restore_char (char **c, const unsigned char *d, int *off) return; } - *c = safe_malloc (size); - memcpy (*c, d + *off, size); + *c = p_dup(d + *off, size); *off += size; } -static unsigned char *dump_address (ADDRESS * a, unsigned char *d, int *off) +static unsigned char *dump_address (address_t * a, unsigned char *d, int *off) { unsigned int counter = 0; unsigned int start_off = *off; @@ -177,9 +126,6 @@ static unsigned char *dump_address (ADDRESS * a, unsigned char *d, int *off) d = dump_int (0xdeadbeef, d, off); while (a) { -#ifdef EXACT_ADDRESS - d = dump_char (a->val, d, off); -#endif d = dump_char (a->personal, d, off); d = dump_char (a->mailbox, d, off); d = dump_int (a->group, d, off); @@ -192,17 +138,14 @@ static unsigned char *dump_address (ADDRESS * a, unsigned char *d, int *off) return d; } -static void restore_address (ADDRESS ** a, const unsigned char *d, int *off) +static void restore_address (address_t ** a, const unsigned char *d, int *off) { unsigned int counter; restore_int (&counter, d, off); while (counter) { - *a = safe_malloc (sizeof (ADDRESS)); -#ifdef EXACT_ADDRESS - restore_char (&(*a)->val, d, off); -#endif + *a = p_new(address_t, 1); restore_char (&(*a)->personal, d, off); restore_char (&(*a)->mailbox, d, off); restore_int ((unsigned int *) &(*a)->group, d, off); @@ -213,7 +156,7 @@ static void restore_address (ADDRESS ** a, const unsigned char *d, int *off) *a = NULL; } -static unsigned char *dump_list (LIST * l, unsigned char *d, int *off) +static unsigned char *dump_list (string_list_t * l, unsigned char *d, int *off) { unsigned int counter = 0; unsigned int start_off = *off; @@ -231,14 +174,14 @@ static unsigned char *dump_list (LIST * l, unsigned char *d, int *off) return d; } -static void restore_list (LIST ** l, const unsigned char *d, int *off) +static void restore_list (string_list_t ** l, const unsigned char *d, int *off) { unsigned int counter; restore_int (&counter, d, off); while (counter) { - *l = safe_malloc (sizeof (LIST)); + *l = p_new(string_list_t, 1); restore_char (&(*l)->data, d, off); l = &(*l)->next; counter--; @@ -247,46 +190,7 @@ static void restore_list (LIST ** l, const unsigned char *d, int *off) *l = NULL; } -#if 0 -static unsigned char *dump_buffer (BUFFER * b, unsigned char *d, int *off) -{ - if (!b) { - d = dump_int (0, d, off); - return d; - } - else { - d = dump_int (1, d, off); - } - - d = dump_char_size (b->data, d, off, b->dsize + 1); - d = dump_int (b->dptr - b->data, d, off); - d = dump_int (b->dsize, d, off); - d = dump_int (b->destroy, d, off); - - return d; -} - -static void restore_buffer (BUFFER ** b, const unsigned char *d, int *off) -{ - unsigned int used; - unsigned int offset; - - restore_int (&used, d, off); - if (!used) { - return; - } - - *b = safe_malloc (sizeof (BUFFER)); - - restore_char (&(*b)->data, d, off); - restore_int (&offset, d, off); - (*b)->dptr = (*b)->data + offset; - restore_int (&(*b)->dsize, d, off); - restore_int ((unsigned int *) &(*b)->destroy, d, off); -} -#endif - -static unsigned char *dump_parameter (PARAMETER * p, unsigned char *d, +static unsigned char *dump_parameter (parameter_t * p, unsigned char *d, int *off) { unsigned int counter = 0; @@ -307,21 +211,19 @@ static unsigned char *dump_parameter (PARAMETER * p, unsigned char *d, } static void -restore_parameter (PARAMETER ** p, const unsigned char *d, int *off) +restore_parameter (parameter_t ** p, const unsigned char *d, int *off) { unsigned int counter; restore_int (&counter, d, off); while (counter) { - *p = safe_malloc (sizeof (PARAMETER)); + *p = parameter_new(); restore_char (&(*p)->attribute, d, off); restore_char (&(*p)->value, d, off); p = &(*p)->next; counter--; } - - *p = NULL; } static unsigned char *dump_body (BODY * c, unsigned char *d, int *off) @@ -381,6 +283,7 @@ static unsigned char *dump_envelope (ENVELOPE * e, unsigned char *d, int *off) d = dump_char (e->supersedes, d, off); d = dump_char (e->date, d, off); d = dump_char (e->x_label, d, off); + d = dump_char (e->list_post, d, off); #ifdef USE_NNTP d = dump_char (e->newsgroups, d, off); @@ -421,7 +324,8 @@ static void restore_envelope (ENVELOPE * e, const unsigned char *d, int *off) restore_char (&e->supersedes, d, off); restore_char (&e->date, d, off); restore_char (&e->x_label, d, off); - + restore_char (&e->list_post, d, off); + #ifdef USE_NNTP restore_char (&e->newsgroups, d, off); restore_char (&e->xref, d, off); @@ -435,7 +339,7 @@ static void restore_envelope (ENVELOPE * e, const unsigned char *d, int *off) } static -unsigned int crc32 (unsigned int crc, unsigned char const *p, size_t len) +unsigned int crc32 (unsigned int crc, unsigned char const *p, ssize_t len) { int i; @@ -452,42 +356,27 @@ static int generate_crc32 () int crc = 0; crc = crc32 (crc, (unsigned char const *) - "sithglan@stud.uni-erlangen.de[sithglan]|hcache.c|20041108231548|29613", - safe_strlen - ("sithglan@stud.uni-erlangen.de[sithglan]|hcache.c|20041108231548|29613")); - -#if HAVE_LANGINFO_CODESET - crc = crc32 (crc, (unsigned char const *) Charset, safe_strlen (Charset)); - crc = - crc32 (crc, (unsigned char const *) "HAVE_LANGINFO_CODESET", - safe_strlen ("HAVE_LANGINFO_CODESET")); + MUTTNG_HCACHE_ID "sithglan@stud.uni-erlangen.de[sithglan]|hcache.c|20041108231548|29613", + m_strlen + (MUTTNG_HCACHE_ID "sithglan@stud.uni-erlangen.de[sithglan]|hcache.c|20041108231548|29613")); + +#ifdef HAVE_LANGINFO_CODESET + crc = crc32(crc, (unsigned char const *) Charset, m_strlen(Charset)); + crc = crc32(crc, (unsigned char const *) "HAVE_LANGINFO_CODESET", + m_strlen("HAVE_LANGINFO_CODESET")); #endif -#if EXACT_ADDRESS - crc = - crc32 (crc, (unsigned char const *) "EXACT_ADDRESS", - safe_strlen ("EXACT_ADDRESS")); -#endif - -#ifdef USE_POP - crc = - crc32 (crc, (unsigned char const *) "USE_POP", safe_strlen ("USE_POP")); -#endif + crc = crc32(crc, (unsigned char const *) "USE_POP", m_strlen("USE_POP")); #ifdef MIXMASTER - crc = - crc32 (crc, (unsigned char const *) "MIXMASTER", - safe_strlen ("MIXMASTER")); + crc = crc32(crc, (unsigned char const *) "MIXMASTER", + m_strlen("MIXMASTER")); #endif -#ifdef USE_IMAP - crc = - crc32 (crc, (unsigned char const *) "USE_IMAP", safe_strlen ("USE_IMAP")); -#endif + crc = crc32(crc, (unsigned char const *) "USE_IMAP", m_strlen("USE_IMAP")); #ifdef USE_NNTP - crc = - crc32 (crc, (unsigned char const *) "USE_NNTP", safe_strlen ("USE_NNTP")); + crc = crc32(crc, (unsigned char const *) "USE_NNTP", m_strlen("USE_NNTP")); #endif return crc; } @@ -526,7 +415,7 @@ static const char *mutt_hcache_per_folder (const char *path, } MD5Init (&md5); - MD5Update (&md5, (unsigned char *) folder, safe_strlen (folder)); + MD5Update (&md5, (unsigned char *) folder, m_strlen(folder)); MD5Final (md5sum, &md5); ret = snprintf (mutt_hcache_per_folder_path, _POSIX_PATH_MAX, @@ -583,7 +472,7 @@ static void *mutt_hcache_dump (void *_db, HEADER * h, int *off, HEADER *mutt_hcache_restore (const unsigned char *d, HEADER ** oh) { int off = 0; - HEADER *h = mutt_new_header (); + HEADER *h = header_new(); /* skip validate */ off += sizeof (validate); @@ -594,10 +483,10 @@ HEADER *mutt_hcache_restore (const unsigned char *d, HEADER ** oh) memcpy (h, d + off, sizeof (HEADER)); off += sizeof (HEADER); - h->env = mutt_new_envelope (); + h->env = envelope_new(); restore_envelope (h->env, d, &off); - h->content = mutt_new_body (); + h->content = body_new(); restore_body (h->content, d, &off); restore_char (&h->maildir_flags, d, &off); @@ -605,50 +494,42 @@ HEADER *mutt_hcache_restore (const unsigned char *d, HEADER ** oh) /* this is needed for maildir style mailboxes */ if (oh) { h->old = (*oh)->old; - h->path = safe_strdup ((*oh)->path); - mutt_free_header (oh); + h->path = m_strdup((*oh)->path); + header_delete(oh); } return h; } -#if HAVE_QDBM +#if defined(HAVE_QDBM) void * mutt_hcache_open(const char *path, const char *folder) { - struct header_cache *h = safe_calloc(1, sizeof (HEADER_CACHE)); - int flags = 0; -#if 0 /* FIXME */ - int pagesize = atoi(HeaderCachePageSize) ? atoi(HeaderCachePageSize) : 16384; -#endif + struct header_cache *h = p_new(struct header_cache, 1); + int flags = VL_OWRITER | VL_OCREAT; h->db = NULL; - h->folder = safe_strdup(folder); + h->folder = m_strdup(folder); h->crc = generate_crc32(); if (!path || path[0] == '\0') { - FREE(&h->folder); - FREE(&h); + p_delete(&h->folder); + p_delete(&h); return NULL; } path = mutt_hcache_per_folder(path, folder); if (option(OPTHCACHECOMPRESS)) - flags = VL_OZCOMP; + flags |= VL_OZCOMP; - h->db = vlopen(path, flags | VL_OWRITER | VL_OCREAT, VL_CMPLEX); - if (h->db) - return h; - - /* if rw failed try ro */ - h->db = vlopen(path, flags | VL_OREADER, VL_CMPLEX); + h->db = vlopen(path, flags, VL_CMPLEX); if (h->db) return h; else { - FREE(&h->folder); - FREE(&h); + p_delete(&h->folder); + p_delete(&h); return NULL; } @@ -663,13 +544,13 @@ mutt_hcache_close(void *db) return; vlclose(h->db); - FREE(&h->folder); - FREE(&h); + p_delete(&h->folder); + p_delete(&h); } void * mutt_hcache_fetch(void *db, const char *filename, - size_t(*keylen) (const char *fn)) + ssize_t(*keylen) (const char *fn)) { struct header_cache *h = db; char path[_POSIX_PATH_MAX]; @@ -679,18 +560,16 @@ mutt_hcache_fetch(void *db, const char *filename, if (!h) return NULL; - strncpy(path, h->folder, sizeof (path)); - safe_strcat(path, sizeof (path), filename); + m_strcpy(path, sizeof(path), h->folder); + m_strcat(path, sizeof(path), filename); ksize = strlen(h->folder) + keylen(path + strlen(h->folder)); data = vlget(h->db, path, ksize, NULL); - if (! crc32_matches(data, h->crc)) + if (!crc32_matches(data, h->crc)) { - if (data) { - FREE(&data); - } + p_delete(&data); return NULL; } @@ -700,7 +579,7 @@ mutt_hcache_fetch(void *db, const char *filename, int mutt_hcache_store(void *db, const char *filename, HEADER * header, unsigned long uid_validity, - size_t(*keylen) (const char *fn)) + ssize_t(*keylen) (const char *fn)) { struct header_cache *h = db; char path[_POSIX_PATH_MAX]; @@ -711,8 +590,8 @@ mutt_hcache_store(void *db, const char *filename, HEADER * header, if (!h) return -1; - strncpy(path, h->folder, sizeof (path)); - safe_strcat(path, sizeof (path), filename); + m_strcpy(path, sizeof(path), h->folder); + m_strcat(path, sizeof(path), filename); ksize = strlen(h->folder) + keylen(path + strlen(h->folder)); @@ -720,14 +599,14 @@ mutt_hcache_store(void *db, const char *filename, HEADER * header, ret = vlput(h->db, path, ksize, data, dsize, VL_DOVER); - FREE(&data); + p_delete(&data); return ret; } int mutt_hcache_delete(void *db, const char *filename, - size_t(*keylen) (const char *fn)) + ssize_t(*keylen) (const char *fn)) { struct header_cache *h = db; char path[_POSIX_PATH_MAX]; @@ -736,28 +615,28 @@ mutt_hcache_delete(void *db, const char *filename, if (!h) return -1; - strncpy(path, h->folder, sizeof (path)); - safe_strcat(path, sizeof (path), filename); + m_strcpy(path, sizeof(path), h->folder); + m_strcat(path, sizeof(path), filename); ksize = strlen(h->folder) + keylen(path + strlen(h->folder)); return vlout(h->db, path, ksize); } -#elif HAVE_GDBM +#elif defined(HAVE_GDBM) void *mutt_hcache_open (const char *path, const char *folder) { - struct header_cache *h = safe_calloc (1, sizeof (HEADER_CACHE)); + struct header_cache *h = p_new(struct header_cache, 1); int pagesize = atoi (HeaderCachePageSize) ? atoi (HeaderCachePageSize) : 16384; h->db = NULL; - h->folder = safe_strdup (folder); + h->folder = m_strdup(folder); h->crc = generate_crc32 (); if (!path || path[0] == '\0') { - FREE (&h->folder); - FREE (&h); + p_delete(&h->folder); + p_delete(&h); return NULL; } @@ -774,8 +653,8 @@ void *mutt_hcache_open (const char *path, const char *folder) return h; } else { - FREE (&h->folder); - FREE (&h); + p_delete(&h->folder); + p_delete(&h); return NULL; } @@ -790,12 +669,12 @@ void mutt_hcache_close (void *db) } gdbm_close (h->db); - FREE (&h->folder); - FREE (&h); + p_delete(&h->folder); + p_delete(&h); } void *mutt_hcache_fetch (void *db, const char *filename, - size_t (*keylen) (const char *fn)) + ssize_t (*keylen) (const char *fn)) { struct header_cache *h = db; datum key; @@ -806,8 +685,8 @@ void *mutt_hcache_fetch (void *db, const char *filename, return NULL; } - strncpy (path, h->folder, sizeof (path)); - strncat (path, filename, sizeof (path) - safe_strlen (path)); + m_strcpy(path, sizeof(path), h->folder); + strncat (path, filename, sizeof (path) - m_strlen(path)); key.dptr = path; key.dsize = keylen (path); @@ -815,7 +694,7 @@ void *mutt_hcache_fetch (void *db, const char *filename, data = gdbm_fetch (h->db, key); if (!crc32_matches (data.dptr, h->crc)) { - free (data.dptr); + p_delete(&data.dptr); return NULL; } @@ -824,7 +703,7 @@ void *mutt_hcache_fetch (void *db, const char *filename, int mutt_hcache_store (void *db, const char *filename, HEADER * header, - unsigned long uid_validity, size_t (*keylen) (const char *fn)) + unsigned long uid_validity, ssize_t (*keylen) (const char *fn)) { struct header_cache *h = db; datum key; @@ -836,8 +715,8 @@ mutt_hcache_store (void *db, const char *filename, HEADER * header, return -1; } - strncpy (path, h->folder, sizeof (path)); - strncat (path, filename, sizeof (path) - safe_strlen (path)); + m_strcpy(path, sizeof(path), h->folder); + strncat (path, filename, sizeof (path) - m_strlen(path)); key.dptr = path; key.dsize = keylen (path); @@ -846,14 +725,14 @@ mutt_hcache_store (void *db, const char *filename, HEADER * header, ret = gdbm_store (h->db, key, data, GDBM_REPLACE); - FREE (&data.dptr); + p_delete(&data.dptr); return ret; } int mutt_hcache_delete (void *db, const char *filename, - size_t (*keylen) (const char *fn)) + ssize_t (*keylen) (const char *fn)) { datum key; struct header_cache *h = db; @@ -863,17 +742,17 @@ mutt_hcache_delete (void *db, const char *filename, return -1; } - strncpy (path, h->folder, sizeof (path)); - strncat (path, filename, sizeof (path) - safe_strlen (path)); + m_strcpy(path, sizeof(path), h->folder); + strncat (path, filename, sizeof (path) - m_strlen(path)); key.dptr = path; key.dsize = keylen (path); return gdbm_delete (h->db, key); } -#elif HAVE_DB4 +#elif defined(HAVE_DB4) -static void mutt_hcache_dbt_init (DBT * dbt, void *data, size_t len) +static void mutt_hcache_dbt_init (DBT * dbt, void *data, ssize_t len) { dbt->data = data; dbt->size = dbt->ulen = len; @@ -893,14 +772,14 @@ void *mutt_hcache_open (const char *path, const char *folder) struct stat sb; u_int32_t createflags = DB_CREATE; int ret; - struct header_cache *h = calloc (1, sizeof (HEADER_CACHE)); + struct header_cache *h = p_new(struct header_cache, 1); int pagesize = atoi (HeaderCachePageSize); h->crc = generate_crc32 (); if (!path || path[0] == '\0') { - FREE (&h); + p_delete(&h); return NULL; } @@ -910,13 +789,13 @@ void *mutt_hcache_open (const char *path, const char *folder) h->fd = open (h->lockfile, O_WRONLY | O_CREAT, S_IRUSR | S_IWUSR); if (h->fd < 0) { - FREE (&h); + p_delete(&h); return NULL; } if (mx_lock_file (h->lockfile, h->fd, 1, 0, 5)) { close (h->fd); - FREE (&h); + p_delete(&h); return NULL; } @@ -924,19 +803,19 @@ void *mutt_hcache_open (const char *path, const char *folder) if (ret) { mx_unlock_file (h->lockfile, h->fd, 0); close (h->fd); - FREE (&h); + p_delete(&h); return NULL; } ret = - h->env->open (h->env, NULL, DB_INIT_MPOOL | DB_CREATE | DB_PRIVATE, 0600); + (h->env->open)(h->env, NULL, DB_INIT_MPOOL | DB_CREATE | DB_PRIVATE, 0600); if (!ret) { ret = db_create (&h->db, h->env, 0); if (ret) { h->env->close (h->env, 0); mx_unlock_file (h->lockfile, h->fd, 0); close (h->fd); - FREE (&h); + p_delete(&h); return NULL; } } @@ -946,13 +825,13 @@ void *mutt_hcache_open (const char *path, const char *folder) h->db->set_pagesize (h->db, pagesize); } - ret = h->db->open (h->db, NULL, path, folder, DB_BTREE, createflags, 0600); + ret = (h->db->open)(h->db, NULL, path, folder, DB_BTREE, createflags, 0600); if (ret) { h->db->close (h->db, 0); h->env->close (h->env, 0); mx_unlock_file (h->lockfile, h->fd, 0); close (h->fd); - FREE (&h); + p_delete(&h); return NULL; } @@ -962,7 +841,6 @@ void *mutt_hcache_open (const char *path, const char *folder) void mutt_hcache_close (void *db) { struct header_cache *h = db; - int ret; if (!h) { return; @@ -972,11 +850,11 @@ void mutt_hcache_close (void *db) h->env->close (h->env, 0); mx_unlock_file (h->lockfile, h->fd, 0); close (h->fd); - FREE (&h); + p_delete(&h); } void *mutt_hcache_fetch (void *db, const char *filename, - size_t (*keylen) (const char *fn)) + ssize_t (*keylen) (const char *fn)) { DBT key; DBT data; @@ -995,7 +873,7 @@ void *mutt_hcache_fetch (void *db, const char *filename, h->db->get (h->db, NULL, &key, &data, 0); if (!crc32_matches (data.data, h->crc)) { - free (data.data); + p_delete(&data.data); return NULL; } @@ -1004,7 +882,7 @@ void *mutt_hcache_fetch (void *db, const char *filename, int mutt_hcache_store (void *db, const char *filename, HEADER * header, - unsigned long uid_validity, size_t (*keylen) (const char *fn)) + unsigned long uid_validity, ssize_t (*keylen) (const char *fn)) { DBT key; DBT data; @@ -1027,14 +905,14 @@ mutt_hcache_store (void *db, const char *filename, HEADER * header, ret = h->db->put (h->db, NULL, &key, &data, 0); - FREE (&data.data); + p_delete(&data.data); return ret; } int mutt_hcache_delete (void *db, const char *filename, - size_t (*keylen) (const char *fn)) + ssize_t (*keylen) (const char *fn)) { DBT key; struct header_cache *h = db;