#ifdef USE_HCACHE
-#define MUTTNG_HCACHE_ID "0x004"
-
#if defined(HAVE_QDBM)
#include <depot.h>
#include <cabin.h>
#include <imap/message.h>
-#include "md5.h"
#include "charset.h"
#include "mutt.h"
#include "hcache.h"
-struct header_cache {
+struct hcache_t {
#if defined(HAVE_QDBM)
- VILLA *db;
- char *folder;
- unsigned int crc;
+ VILLA *db;
#elif defined(HAVE_GDBM)
- GDBM_FILE db;
- char *folder;
- unsigned int crc;
+ GDBM_FILE db;
#endif
+ char *folder;
+ unsigned int crc;
};
typedef union {
restore_list (&e->userhdrs, d, off);
}
-static
-unsigned int crc32 (unsigned int crc, unsigned char const *p, ssize_t len)
+static unsigned int crc32(unsigned int crc, const void *src, ssize_t len)
{
- int i;
+ int i;
+ const unsigned char *p = src;
- while (len--) {
- crc ^= *p++;
- for (i = 0; i < 8; i++)
- crc = (crc >> 1) ^ ((crc & 1) ? 0xedb88320 : 0);
- }
- return crc;
+ while (len--) {
+ crc ^= *p++;
+ for (i = 0; i < 8; i++)
+ crc = (crc >> 1) ^ ((crc & 1) ? 0xedb88320 : 0);
+ }
+ return crc;
}
-static int generate_crc32 ()
+static int generate_crc32(void)
{
- int crc = 0;
-
- crc = crc32 (crc, (unsigned char const *)
- 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"));
+ static int crc = 0;
+ crc = crc32(crc, "madmutt.2007.05.13", m_strlen("madmutt.2007.05.13"));
#ifdef HAVE_LANGINFO_CODESET
- crc = crc32(crc, (unsigned char const *) MCharset.charset, m_strlen(MCharset.charset));
- crc = crc32(crc, (unsigned char const *) "HAVE_LANGINFO_CODESET",
- m_strlen("HAVE_LANGINFO_CODESET"));
+ crc = crc32(crc, MCharset.charset, m_strlen(MCharset.charset));
+ crc = crc32(crc, "HAVE_LANGINFO_CODESET",
+ m_strlen("HAVE_LANGINFO_CODESET"));
#endif
-
- crc = crc32(crc, (unsigned char const *) "USE_POP", m_strlen("USE_POP"));
-
- crc = crc32(crc, (unsigned char const *) "MIXMASTER",
- m_strlen("MIXMASTER"));
-
- crc = crc32(crc, (unsigned char const *) "USE_IMAP", m_strlen("USE_IMAP"));
-
+ crc = crc32(crc, "USE_POP", m_strlen("USE_POP"));
+ crc = crc32(crc, "MIXMASTER", m_strlen("MIXMASTER"));
+ crc = crc32(crc, "USE_IMAP", m_strlen("USE_IMAP"));
#ifdef USE_NNTP
- crc = crc32(crc, (unsigned char const *) "USE_NNTP", m_strlen("USE_NNTP"));
+ crc = crc32(crc, "USE_NNTP", m_strlen("USE_NNTP"));
#endif
- return crc;
+ return crc;
}
-static int crc32_matches (const char *d, unsigned int crc)
+static const char *
+mutt_hcache_per_folder(const char *path, const char *folder)
{
- int off = sizeof (validate);
- unsigned int mycrc = 0;
+ static char buf[_POSIX_PATH_MAX];
+ struct stat st;
+ int pos;
- if (!d) {
- return 0;
- }
+ if (stat(path, &st) < 0 || !S_ISDIR(st.st_mode)) {
+ return path;
+ }
- restore_int (&mycrc, (unsigned char *) d, &off);
+ pos = m_strcpy(buf, sizeof(buf), path);
+ pos += m_strputc(buf + pos, sizeof(buf) - pos, '/');
- return (crc == mycrc);
-}
-
-/* Append md5sumed folder to path if path is a directory. */
-static const char *mutt_hcache_per_folder (const char *path,
- const char *folder)
-{
- static char mutt_hcache_per_folder_path[_POSIX_PATH_MAX];
- struct stat path_stat;
- MD5_CTX md5;
- unsigned char md5sum[16];
- int ret;
-
- ret = stat (path, &path_stat);
- if (ret < 0) {
- return path;
- }
-
- if (!S_ISDIR (path_stat.st_mode)) {
- return path;
- }
-
- MD5Init (&md5);
- MD5Update (&md5, (unsigned char *) folder, m_strlen(folder));
- MD5Final (md5sum, &md5);
-
- ret = snprintf (mutt_hcache_per_folder_path, _POSIX_PATH_MAX,
- "%s/%02x%02x%02x%02x%02x%02x%02x%02x"
- "%02x%02x%02x%02x%02x%02x%02x%02x",
- path, md5sum[0], md5sum[1], md5sum[2], md5sum[3],
- md5sum[4], md5sum[5], md5sum[6], md5sum[7], md5sum[8],
- md5sum[9], md5sum[10], md5sum[11], md5sum[12],
- md5sum[13], md5sum[14], md5sum[15]);
-
- if (ret <= 0) {
- return path;
- }
-
- return mutt_hcache_per_folder_path;
+ while (*folder) {
+ if (isalnum((unsigned char)*folder) || *folder == '.') {
+ pos += m_strputc(buf + pos, sizeof(buf) - pos, *folder);
+ } else {
+ pos += m_strputc(buf + pos, sizeof(buf) - pos, '_');
+ }
+ folder++;
+ }
+ pos += m_strcpy(buf + pos, sizeof(buf) - pos, ".hdb");
+ return buf;
}
/* This function transforms a header into a char so that it is useable by
static void *mutt_hcache_dump (void *_db, HEADER * h, int *off,
unsigned long uid_validity)
{
- struct header_cache *db = _db;
+ struct hcache_t *db = _db;
unsigned char *d = NULL;
*off = 0;
return h;
}
-#if defined(HAVE_QDBM)
-void *
-mutt_hcache_open(const char *path, const char *folder)
-{
- struct header_cache *h = p_new(struct header_cache, 1);
- int flags = VL_OWRITER | VL_OCREAT;
- h->db = NULL;
- h->folder = m_strdup(folder);
- h->crc = generate_crc32();
-
- if (!path || path[0] == '\0')
- {
- p_delete(&h->folder);
- p_delete(&h);
- return NULL;
- }
-
- path = mutt_hcache_per_folder(path, folder);
-
- if (option(OPTHCACHECOMPRESS))
- flags |= VL_OZCOMP;
-
- h->db = vlopen(path, flags, VL_CMPLEX);
- if (h->db)
- return h;
- else
- {
- p_delete(&h->folder);
- p_delete(&h);
-
- return NULL;
- }
-}
-
-void
-mutt_hcache_close(void *db)
-{
- struct header_cache *h = db;
-
- if (!h)
- return;
-
- vlclose(h->db);
- p_delete(&h->folder);
- p_delete(&h);
-}
-
-void *
-mutt_hcache_fetch(void *db, const char *filename,
- ssize_t(*keylen) (const char *fn))
-{
- struct header_cache *h = db;
- char path[_POSIX_PATH_MAX];
- int ksize;
- char *data = NULL;
-
- if (!h)
- return NULL;
-
- 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))
- {
- p_delete(&data);
- return NULL;
- }
-
- return data;
-}
-
-int
-mutt_hcache_store(void *db, const char *filename, HEADER * header,
- unsigned long uid_validity,
- ssize_t(*keylen) (const char *fn))
-{
- struct header_cache *h = db;
- char path[_POSIX_PATH_MAX];
- int ret;
- int ksize, dsize;
- char *data = NULL;
-
- if (!h)
- return -1;
-
- m_strcpy(path, sizeof(path), h->folder);
- m_strcat(path, sizeof(path), filename);
-
- ksize = strlen(h->folder) + keylen(path + strlen(h->folder));
-
- data = mutt_hcache_dump(db, header, &dsize, uid_validity);
-
- ret = vlput(h->db, path, ksize, data, dsize, VL_DOVER);
-
- p_delete(&data);
-
- return ret;
-}
-
-int
-mutt_hcache_delete(void *db, const char *filename,
- ssize_t(*keylen) (const char *fn))
+hcache_t *mutt_hcache_open(const char *path, const char *folder)
{
- struct header_cache *h = db;
- char path[_POSIX_PATH_MAX];
- int ksize;
+ hcache_t *h = p_new(hcache_t, 1);
- if (!h)
- return -1;
+ h->folder = m_strdup(folder);
+ h->crc = generate_crc32();
- m_strcpy(path, sizeof(path), h->folder);
- m_strcat(path, sizeof(path), filename);
+ if (m_strisempty(path)) {
+ p_delete(&h->folder);
+ p_delete(&h);
+ return NULL;
+ }
- ksize = strlen(h->folder) + keylen(path + strlen(h->folder));
+ path = mutt_hcache_per_folder(path, folder);
- return vlout(h->db, path, ksize);
-}
+ {
+#if defined(HAVE_QDBM)
+ int flags = VL_OWRITER | VL_OCREAT;
+ if (option(OPTHCACHECOMPRESS))
+ flags |= VL_OZCOMP;
+ h->db = vlopen(path, flags, VL_CMPLEX);
#elif defined(HAVE_GDBM)
+ int pagesize = atoi(HeaderCachePageSize) ?: 16384;
-void *mutt_hcache_open (const char *path, const char *folder)
-{
- struct header_cache *h = p_new(struct header_cache, 1);
- int pagesize =
- atoi (HeaderCachePageSize) ? atoi (HeaderCachePageSize) : 16384;
- h->db = NULL;
- h->folder = m_strdup(folder);
- h->crc = generate_crc32 ();
-
- if (!path || path[0] == '\0') {
- p_delete(&h->folder);
- p_delete(&h);
- return NULL;
- }
-
- path = mutt_hcache_per_folder (path, folder);
-
- h->db = gdbm_open ((char *) path, pagesize, GDBM_WRCREAT, 00600, NULL);
- if (h->db) {
- return h;
- }
+ h->db = gdbm_open((char *) path, pagesize, GDBM_WRCREAT, 00600, NULL);
+#endif
+ }
- /* if rw failed try ro */
- h->db = gdbm_open ((char *) path, pagesize, GDBM_READER, 00600, NULL);
- if (h->db) {
+ if (!h->db) {
+ p_delete(&h->folder);
+ p_delete(&h);
+ }
return h;
- }
- else {
- p_delete(&h->folder);
- p_delete(&h);
-
- return NULL;
- }
}
-void mutt_hcache_close (void *db)
+void mutt_hcache_close(hcache_t **db)
{
- struct header_cache *h = db;
+ if (!*db)
+ return;
- if (!h) {
- return;
- }
+#if defined(HAVE_QDBM)
+ vlclose((*db)->db);
+#elif defined(HAVE_GDBM)
+ gdbm_close((*db)->db);
+#endif
- gdbm_close (h->db);
- p_delete(&h->folder);
- p_delete(&h);
+ p_delete(&(*db)->folder);
+ p_delete(db);
}
-void *mutt_hcache_fetch (void *db, const char *filename,
- ssize_t (*keylen) (const char *fn))
+void *mutt_hcache_fetch(hcache_t *db, const char *filename,
+ ssize_t (*keylen)(const char *fn))
{
- struct header_cache *h = db;
- datum key;
- datum data;
- char path[_POSIX_PATH_MAX];
+ char path[_POSIX_PATH_MAX];
+ void *data = NULL;
- if (!h) {
- return NULL;
- }
+ if (!db)
+ return NULL;
+
+ snprintf(path, sizeof(path), "%s%s", db->folder, filename);
- m_strcpy(path, sizeof(path), h->folder);
- strncat (path, filename, sizeof (path) - m_strlen(path));
+ {
+#if defined(HAVE_QDBM)
+ int ksize = strlen(db->folder) + keylen(path + strlen(db->folder));
+ data = vlget(db->db, path, ksize, NULL);
+#elif defined(HAVE_GDBM)
+ datum k = { .dptr = path, .dsize = keylen(path) };
- key.dptr = path;
- key.dsize = keylen (path);
+ data = gdbm_fetch(db->db, k).dtpr;
+#endif
+ }
- data = gdbm_fetch (h->db, key);
+ if (data) {
+ int off = sizeof(validate);
+ unsigned crc = 0;
- if (!crc32_matches (data.dptr, h->crc)) {
- p_delete(&data.dptr);
- return NULL;
- }
+ restore_int(&crc, data, &off);
+ if (crc != db->crc)
+ p_delete(&data);
+ }
- return data.dptr;
+ return data;
}
-int
-mutt_hcache_store (void *db, const char *filename, HEADER * header,
- unsigned long uid_validity, ssize_t (*keylen) (const char *fn))
+int mutt_hcache_store(hcache_t *db, const char *filename, HEADER *header,
+ unsigned long uid_validity,
+ ssize_t (*keylen)(const char *fn))
{
- struct header_cache *h = db;
- datum key;
- datum data;
- char path[_POSIX_PATH_MAX];
- int ret;
-
- if (!h) {
- return -1;
- }
+ char path[_POSIX_PATH_MAX];
+ int ret, dsize;
+ void *data = NULL;
- m_strcpy(path, sizeof(path), h->folder);
- strncat (path, filename, sizeof (path) - m_strlen(path));
+ if (!db)
+ return -1;
- key.dptr = path;
- key.dsize = keylen (path);
+ snprintf(path, sizeof(path), "%s%s", db->folder, filename);
+ data = mutt_hcache_dump(db, header, &dsize, uid_validity);
- data.dptr = mutt_hcache_dump (db, header, &data.dsize, uid_validity);
+ {
+#if defined(HAVE_QDBM)
+ int ksize = strlen(db->folder) + keylen(path + strlen(db->folder));
- ret = gdbm_store (h->db, key, data, GDBM_REPLACE);
+ ret = vlput(db->db, path, ksize, data, dsize, VL_DOVER);
+#elif defined(HAVE_GDBM)
+ datum k = { .dptr = path, .dsize = keylen(path) };
+ datum v = { .dptr = data, .dsize = dsize };
- p_delete(&data.dptr);
+ ret = gdbm_store (db->db, k, v, GDBM_REPLACE);
+#endif
+ }
- return ret;
+ p_delete(&data);
+ return ret;
}
-int
-mutt_hcache_delete (void *db, const char *filename,
- ssize_t (*keylen) (const char *fn))
+int mutt_hcache_delete(hcache_t *db, const char *filename,
+ ssize_t (*keylen)(const char *fn))
{
- datum key;
- struct header_cache *h = db;
- char path[_POSIX_PATH_MAX];
+ char path[_POSIX_PATH_MAX];
- if (!h) {
- return -1;
- }
+ if (!db)
+ return -1;
- m_strcpy(path, sizeof(path), h->folder);
- strncat (path, filename, sizeof (path) - m_strlen(path));
+ snprintf(path, sizeof(path), "%s%s", db->folder, filename);
- key.dptr = path;
- key.dsize = keylen (path);
-
- return gdbm_delete (h->db, key);
-}
+ {
+#if defined(HAVE_QDBM)
+ int ksize = strlen(db->folder) + keylen(path + strlen(db->folder));
+ return vlout(db->db, path, ksize);
+#elif defined(HAVE_GDBM)
+ datum k = { .dptr = path, .dsize = keylen(path) };
+ return gdbm_delete(db->db, k);
#endif
+ }
+}
#endif /* USE_HCACHE */
projects / apps / madmutt.git / blobdiff