Move csync in order to merge it with mirall

1 files changed, 379 insertions, 0 deletions

diff --git a/csync/src/std/c_string.c b/csync/src/std/c_string.c
new file mode 100644
index 000000000..2c056a531
--- /dev/null
+++ b/csync/src/std/c_string.c
@@ -0,0 +1,379 @@
+/*
+ * cynapses libc functions
+ *
+ * Copyright (c) 2008-2013 by Andreas Schneider <asn@cryptomilk.org>
+ * Copyright (c) 2012-2013 by Klaas Freitag <freitag@owncloud.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include <assert.h>
+#include <errno.h>
+#include <ctype.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include <limits.h>
+#include <sys/types.h>
+#include <wchar.h>
+
+#include "c_string.h"
+#include "c_alloc.h"
+#include "c_macro.h"
+
+#ifdef _WIN32
+#include <windows.h>
+#endif
+
+#if defined(HAVE_ICONV) && defined(WITH_ICONV)
+# ifdef HAVE_ICONV_H
+#  include <iconv.h>
+# endif
+# ifdef HAVE_SYS_ICONV_H
+#  include <sys/iconv.h>
+# endif
+
+typedef struct {
+  iconv_t to;
+  iconv_t from;
+} iconv_conversions;
+
+CSYNC_THREAD iconv_conversions _iconvs = { NULL, NULL };
+
+int c_setup_iconv(const char* to) {
+  _iconvs.to = iconv_open(to, "UTF-8");
+  _iconvs.from = iconv_open("UTF-8", to);
+
+  if (_iconvs.to == (iconv_t)-1 || _iconvs.from == (iconv_t)-1)
+    return -1;
+
+  return 0;
+}
+
+int c_close_iconv() {
+    int ret_to = 0;
+    int ret_from = 0;
+    if( _iconvs.to != (iconv_t) NULL ) {
+        ret_to = iconv_close(_iconvs.to);
+    }
+    if( _iconvs.from != (iconv_t) NULL ) {
+        ret_from = iconv_close(_iconvs.from);
+    }
+
+  if (ret_to == -1 || ret_from == -1)
+    return -1;
+
+  _iconvs.to = (iconv_t) 0;
+  _iconvs.from = (iconv_t) 0;
+
+  return 0;
+}
+
+enum iconv_direction { iconv_from_native, iconv_to_native };
+
+static char *c_iconv(const char* str, enum iconv_direction dir)
+{
+#ifdef HAVE_ICONV_CONST
+    const char *in = str;
+#else
+    char *in = discard_const(str);
+#endif
+  size_t size;
+  size_t outsize;
+  char *out;
+  char *out_in;
+  size_t ret;
+
+  if (str == NULL) {
+    return NULL;
+  }
+
+  if(_iconvs.from == NULL && _iconvs.to == NULL) {
+#ifdef __APPLE__
+    c_setup_iconv("UTF-8-MAC");
+#else
+    return c_strdup(str);
+#endif
+  }
+
+  size = strlen(in);
+  outsize = size*2;
+  out = c_malloc(outsize);
+  out_in = out;
+
+  if (out == NULL) {
+      return NULL;
+  }
+
+  if (dir == iconv_to_native) {
+      ret = iconv(_iconvs.to, &in, &size, &out, &outsize);
+  } else {
+      ret = iconv(_iconvs.from, &in, &size, &out, &outsize);
+  }
+
+  if (ret == (size_t)-1) {
+      SAFE_FREE(out);
+      return NULL;
+  }
+
+  return out_in;
+}
+#endif /* defined(HAVE_ICONV) && defined(WITH_ICONV) */
+
+int c_streq(const char *a, const char *b) {
+  register const char *s1 = a;
+  register const char *s2 = b;
+
+  if (s1 == NULL || s2 ==  NULL) {
+    return 0;
+  }
+
+  while (*s1 == *s2++) {
+    if (*s1++ == '\0') {
+      return 1;
+    }
+  }
+
+  return 0;
+}
+
+c_strlist_t *c_strlist_new(size_t size) {
+  c_strlist_t *strlist = NULL;
+
+  if (size == 0) {
+    errno = EINVAL;
+    return NULL;
+  }
+
+  strlist = c_malloc(sizeof(c_strlist_t));
+  if (strlist == NULL) {
+    return NULL;
+  }
+
+  strlist->vector = (char **) c_malloc(size * sizeof(char *));
+  if (strlist->vector == NULL) {
+    SAFE_FREE(strlist);
+    return NULL;
+  }
+  strlist->count = 0;
+  strlist->size = size;
+
+  return strlist;
+}
+
+c_strlist_t *c_strlist_expand(c_strlist_t *strlist, size_t size) {
+  if (strlist == NULL || size == 0) {
+    errno = EINVAL;
+    return NULL;
+  }
+
+  if (strlist->size >= size) {
+    return strlist;
+  }
+
+  strlist->vector = (char **) c_realloc(strlist->vector, size * sizeof(char *));
+  if (strlist->vector == NULL) {
+    return NULL;
+  }
+
+  strlist->size = size;
+
+  return strlist;
+}
+
+int c_strlist_add(c_strlist_t *strlist, const char *string) {
+  if (strlist == NULL || string == NULL) {
+    return -1;
+  }
+
+  if (strlist->count < strlist->size) {
+    strlist->vector[strlist->count] = c_strdup(string);
+    if (strlist->vector[strlist->count] == NULL) {
+      return -1;
+    }
+    strlist->count++;
+  } else {
+    errno = ENOBUFS;
+    return -1;
+  }
+
+  return 0;
+}
+
+void c_strlist_clear(c_strlist_t *strlist) {
+  size_t i = 0;
+
+  if (strlist == NULL) {
+    return;
+  }
+
+  for (i = 0; i < strlist->count; i++) {
+    SAFE_FREE(strlist->vector[i]);
+  }
+
+  strlist->count = 0;
+}
+
+void c_strlist_destroy(c_strlist_t *strlist) {
+
+  if (strlist == NULL) {
+    return;
+  }
+
+  c_strlist_clear(strlist);
+  SAFE_FREE(strlist->vector);
+  SAFE_FREE(strlist);
+}
+
+char *c_strreplace(char *src, const char *pattern, const char *repl) {
+  char *p = NULL;
+
+  while ((p = strstr(src, pattern)) != NULL) {
+     size_t of = p - src;
+     size_t l  = strlen(src);
+     size_t pl = strlen(pattern);
+     size_t rl = strlen(repl);
+
+     if (rl > pl) {
+        src = (char *) c_realloc(src, strlen(src) + rl - pl + 1);
+     }
+
+     if (rl != pl) {
+        memmove(src + of + rl, src + of + pl, l - of - pl + 1);
+     }
+
+     strncpy(src + of, repl, rl);
+  }
+
+  return src;
+}
+
+char *c_uppercase(const char* str) {
+  char *new;
+  char *p;
+
+  if (str == NULL) {
+    return NULL;
+  }
+
+  new = c_strdup(str);
+  if (new == NULL) {
+    return NULL;
+  }
+
+  for (p = new; *p; p++) {
+    *p = toupper(*p);
+  }
+
+  return new;
+}
+
+char *c_lowercase(const char* str) {
+  char *new;
+  char *p;
+
+  if (str == NULL) {
+    return NULL;
+  }
+
+  new = c_strdup(str);
+  if (new == NULL) {
+    return NULL;
+  }
+
+  for (p = new; *p; p++) {
+    *p = tolower(*p);
+  }
+
+  return new;
+}
+
+/* Convert a wide multibyte String to UTF8 */
+char* c_utf8_from_locale(const mbchar_t *wstr)
+{
+  char *dst = NULL;
+#ifdef _WIN32
+  char *mdst = NULL;
+  int size_needed;
+  size_t len;
+#endif
+
+  if (wstr == NULL) {
+    return NULL;
+  }
+
+#ifdef _WIN32
+  len = wcslen(wstr);
+  /* Call once to get the required size. */
+  size_needed = WideCharToMultiByte(CP_UTF8, 0, wstr, len, NULL, 0, NULL, NULL);
+  if (size_needed > 0) {
+    mdst = c_malloc(size_needed + 1);
+    if (mdst == NULL) {
+      errno = ENOMEM;
+      return NULL;
+    }
+
+    memset(mdst, 0, size_needed + 1);
+    WideCharToMultiByte(CP_UTF8, 0, wstr, len, mdst, size_needed, NULL, NULL);
+    dst = mdst;
+  }
+#else
+#ifdef WITH_ICONV
+  dst = c_iconv(wstr, iconv_from_native);
+#else
+  dst = (char*) wstr;
+#endif
+#endif
+  return dst;
+}
+
+/* Convert a an UTF8 string to multibyte */
+mbchar_t* c_utf8_to_locale(const char *str)
+{
+  mbchar_t *dst = NULL;
+#ifdef _WIN32
+  size_t len;
+  int size_needed;
+#endif
+
+  if (str == NULL ) {
+    return NULL;
+  }
+
+#ifdef _WIN32
+  len = strlen(str);
+  size_needed = MultiByteToWideChar(CP_UTF8, 0, str, len, NULL, 0);
+  if (size_needed > 0) {
+    int size_char = (size_needed + 1) * sizeof(mbchar_t);
+    dst = c_malloc(size_char);
+    if (dst == NULL) {
+      errno = ENOMEM;
+      return NULL;
+    }
+
+    memset((void*)dst, 0, size_char);
+    MultiByteToWideChar(CP_UTF8, 0, str, -1, dst, size_needed);
+  }
+#else
+#ifdef WITH_ICONV
+  dst = c_iconv(str, iconv_to_native);
+#else
+  dst = (_TCHAR*) str;
+#endif
+#endif
+  return dst;
+}