add missing tvh_string.h header file

diff --git a/src/tvh_string.h b/src/tvh_string.h
new file mode 100644 (file)
index 0000000..87d8c33
--- /dev/null
+++ b/src/tvh_string.h
@@ -0,0 +1,98 @@
+/*
+ *  Tvheadend - advanced string functions
+ *  Copyright (C) 2007 Andreas Öman
+ *  Copyright (C) 2014-2018 Jaroslav Kysela
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef TVHEADEND_STRINGS_H
+#define TVHEADEND_STRINGS_H
+
+#include "build.h"
+
+static inline size_t tvh_strlen(const char *s)
+{
+  return (s) ? strlen(s) : 0;
+}
+
+static inline const char *tvh_str_default(const char *s, const char *dflt)
+{
+  return s && s[0] ? s : dflt;
+}
+
+void tvh_str_set(char **strp, const char *src);
+int tvh_str_update(char **strp, const char *src);
+
+#define tvh_strdupa(n) \
+  ({ int tvh_l = strlen(n); \
+     char *tvh_b = alloca(tvh_l + 1); \
+     memcpy(tvh_b, n, tvh_l + 1); })
+
+static inline const char *tvh_strbegins(const char *s1, const char *s2)
+{
+  while(*s2)
+    if(*s1++ != *s2++)
+      return NULL;
+  return s1;
+}
+
+static inline size_t strlcpy(char *dst, const char *src, size_t size)
+{
+  size_t ret = strlen(src);
+  if (size) {
+    size_t len = ret >= size ? size - 1 : ret;
+    memcpy(dst, src, len);
+    dst[len] = '\0';
+  }
+  return ret;
+}
+
+static inline size_t strlcat(char *dst, const char *src, size_t count)
+{
+  size_t dlen = strlen(dst);
+  size_t len = strlen(src);
+  size_t res = dlen + len;
+
+  dst += dlen;
+  count -= dlen;
+  if (len >= count)
+    len = count - 1;
+  memcpy(dst, src, len);
+  dst[len] = '\0';
+  return res;
+}
+
+#define tvh_strlcatf(buf, size, ptr, fmt...) \
+  do { int __r = snprintf((buf) + ptr, (size) - ptr, fmt); \
+       ptr = __r >= (size) - ptr ? (size) - 1 : ptr + __r; } while (0)
+
+static inline void mystrset(char **p, const char *s)
+{
+  free(*p);
+  *p = s ? strdup(s) : NULL;
+}
+
+static inline unsigned int tvh_strhash(const char *s, unsigned int mod)
+{
+  unsigned int v = 5381;
+  while(*s)
+    v += (v << 5) + v + *s++;
+  return v % mod;
+}
+
+int put_utf8(char *out, int c);
+
+char *utf8_lowercase_inplace(char *s);
+
+#endif /* TVHEADEND_STRINGS_H */