Workaround for strdup redefinition

Author: Igor Wodiany

libworkstream_df/ansi_extras.h

@@ -0,0 +1,103 @@
+/**
+ * Copyright (C) 2013 Andi Drebes <andi.drebes@lip6.fr>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * 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, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef ANSI_EXTRAS_H
+#define ANSI_EXTRAS_H
+
+#include <endian.h>
+#include <stdint.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <malloc.h>
+
+#define SWAP_BITS(val, ret, bits) \
+	do { \
+		char* cval = (char*)&val; \
+		for(unsigned int i = 0; i < (bits) / 8; ++i) \
+			ret |= cval[i] << (((bits)-8) - 8*i); \
+	} while(0)
+
+inline int64_t int64_swap(int64_t val)
+{
+	int64_t ret;
+	SWAP_BITS(val, ret, sizeof(int64_t)*8);
+
+	return ret;
+}
+
+inline int32_t int32_swap(int32_t val)
+{
+	int32_t ret;
+	SWAP_BITS(val, ret, sizeof(int32_t)*8);
+
+	return ret;
+}
+
+inline int16_t int16_swap(int16_t val)
+{
+	int16_t ret;
+	SWAP_BITS(val, ret, sizeof(int16_t)*8);
+
+	return ret;
+}
+
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+	#define int16_htole(val) val
+	#define int32_htole(val) val
+	#define int64_htole(val) val
+	#define int16_letoh(val) val
+	#define int32_letoh(val) val
+	#define int64_letoh(val) val
+#elif __BYTE_ORDER == __BIG_ENDIAN
+	#define int16_htole(val) int16_swap(val)
+	#define int32_htole(val) int32_swap(val)
+	#define int64_htole(val) int64_swap(val)
+	#define int16_letoh(val) int16_swap(val)
+	#define int32_letoh(val) int32_swap(val)
+	#define int64_letoh(val) int64_swap(val)
+#else
+	#error "Could not determine your system's endianness"
+#endif
+
+/* Very simple string replacement function.
+ * haystack must contain enough space for all
+ * replacements*/
+static inline void strreplace(char* haystack, const char* needle, const char* replacement)
+{
+	char* pos;
+	int needle_len = strlen(needle);
+	int replacement_len = strlen(replacement);
+
+	while((pos = strstr(haystack, needle))) {
+		memmove(pos+(replacement_len-needle_len), pos, strlen(pos)+1);
+		memcpy(pos, replacement, replacement_len);
+	}
+}
+
+static inline off_t file_size(const char* filename)
+{
+	struct stat stat_buf;
+
+	if(stat(filename, &stat_buf) == -1)
+		return -1;
+
+	return stat_buf.st_size;
+}
+
+#endif