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[Lost] [Patch] Ein paar neue Libc-Funktionen

Date: Sun, 13 Jan 2008 00:43:03 +0100
From: Antoine Kaufmann <toni@xxxxxxxxxxxxxxxx>
To: "Lost-Patches" <lost@xxxxxxxxxxxxxxxx>
Subject: [Lost] [Patch] Ein paar neue Libc-Funktionen
Message-id: <200801130043.04187.toni@famkaufmann.info>

Dieser Patch erweitert unsere Libc um ein paar Funktionen.

Index: src/include/string.h
===================================================================
--- src/include/string.h	(Revision 688)
+++ src/include/string.h	(Arbeitskopie)
@@ -42,5 +42,7 @@
 
 char *strpbrk(const char *s1, const char *s2);
 
+char* strerror(int error_code);
+
 #endif /* ndef _STRING_H */
 
Index: src/lib/string/strerror.c
===================================================================
--- src/lib/string/strerror.c	(Revision 0)
+++ src/lib/string/strerror.c	(Revision 0)
@@ -0,0 +1,52 @@
+/*  
+ * Copyright (c) 2007 The LOST Project. All rights reserved.
+ *
+ * This code is derived from software contributed to the LOST Project
+ * by Antoine Kaufmann.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *     This product includes software developed by the LOST Project
+ *     and its contributors.
+ * 4. Neither the name of the LOST Project nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR 
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <types.h>
+#include <string.h>
+
+/**
+ * Netter Fehlertext zu der angegebenen Fehlernummer zurueckgeben
+ * TODO: ATM nur stub
+ *
+ * @param error_code Fehlernummer
+ * 
+ * @return Pointer auf internen Buffer mit Fehlermeldung
+ */
+char* strerror(int error_code)
+{
+    static char* error_message = "Unbekannter Fehler";
+    return error_message;
+}
+
Index: src/include/stdlib.h
===================================================================
--- src/include/stdlib.h	(Revision 688)
+++ src/include/stdlib.h	(Arbeitskopie)
@@ -62,4 +62,8 @@
 
 char* mktemp(char* template);
 
+double atof(const char* str);
+
+int abs(int x);
+
 #endif
Index: src/lib/string.c
===================================================================
--- src/lib/string.c	(Revision 688)
+++ src/lib/string.c	(Arbeitskopie)
@@ -33,7 +33,8 @@
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include "string.h"
+#include <string.h>
+#include <stdlib.h>
 
 size_t strnlen(const char *s, size_t maxlen)
 {
@@ -128,3 +129,9 @@
     }
     return result;
 }
+
+double atof(const char* str)
+{
+    // TODO
+    return 0;
+}
Index: src/lib/misc.c
===================================================================
--- src/lib/misc.c	(Revision 0)
+++ src/lib/misc.c	(Revision 0)
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2007 The LOST Project. All rights reserved.
+ *
+ * This code is derived from software contributed to the LOST Project
+ * by Antoine Kaufmann.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *     This product includes software developed by the LOST Project
+ *     and its contributors.
+ * 4. Neither the name of the LOST Project nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include <stdlib.h>
+
+/**
+ * Absolutbetrag einer Zahl errechnen
+ */
+int abs(int x)
+{
+    return (x < 0 ? -x : x);
+}
Index: src/include/ctype.h
===================================================================
--- src/include/ctype.h	(Revision 688)
+++ src/include/ctype.h	(Arbeitskopie)
@@ -43,6 +43,7 @@
 #define isxdigit(c) (isdigit(c) || ((c) >= 'a' && (c) <= 'f') || ((c) >= 'A' && (c) <= 'F'))
 #define isupper(c) ((c) >= 'A' && (c) <= 'Z')
 #define islower(c) ((c) >= 'a' && (c) <= 'z')
+#define ispunct(c) ((!isspace(c)) && (!isalpha(c)))
 
 #define isprint(c) ((c) >= (char) 0x20)
 #define iscntrl(c) ((c) < (char) 0x20)
Index: src/modules/include/math.h
===================================================================
--- src/modules/include/math.h	(Revision 688)
+++ src/modules/include/math.h	(Arbeitskopie)
@@ -36,4 +36,7 @@
 #ifndef _MATH_H_
 #define _MATH_H_
 
+// Betrag einer reelen Zahl errechen
+double fabs(double x);
+
 #endif
Index: src/modules/lib/stdlibc/math.c
===================================================================
--- src/modules/lib/stdlibc/math.c	(Revision 0)
+++ src/modules/lib/stdlibc/math.c	(Revision 0)
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2007 The LOST Project. All rights reserved.
+ *
+ * This code is derived from software contributed to the LOST Project
+ * by Antoine Kaufmann.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *     This product includes software developed by the LOST Project
+ *     and its contributors.
+ * 4. Neither the name of the LOST Project nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <math.h>
+
+/**
+ * Betrag einer reellen Zahl errechnen
+ */
+double fabs(double x)
+{
+    return ((x < 0) ? -x : x);
+}
Index: src/modules/include/sys/param.h
===================================================================
--- src/modules/include/sys/param.h	(Revision 0)
+++ src/modules/include/sys/param.h	(Revision 0)
@@ -0,0 +1,41 @@
+/*  
+ * Copyright (c) 2007 The LOST Project. All rights reserved.
+ *
+ * This code is derived from software contributed to the LOST Project
+ * by Antoine Kaufmann.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *     This product includes software developed by the LOST Project
+ *     and its contributors.
+ * 4. Neither the name of the LOST Project nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR 
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef _SYS_PARAM_H_
+#define _SYS_PARAM_H_
+
+// Kuenstliche Begrenzung fuer Programme die sie benutzen wollen
+#define MAXPATHLEN 4096
+
+#endif //ifndef _SYS_PARA;_H_
Index: src/modules/include/assert.h
===================================================================
--- src/modules/include/assert.h	(Revision 688)
+++ src/modules/include/assert.h	(Arbeitskopie)
@@ -36,7 +36,14 @@
 #ifndef _ASSERT_H_
 #define _ASSERT_H_
 
-//FIXME
+#ifdef NDEBUG
 #define assert(x)
+#else
+void _assert(const char* assertation, int expression);
 
+// Das #x verwandelt x in einen String
+#define assert(x) _assert(#x, x)
 #endif
+
+#endif
+
Index: src/modules/lib/stdlibc/assert.c
===================================================================
--- src/modules/lib/stdlibc/assert.c	(Revision 0)
+++ src/modules/lib/stdlibc/assert.c	(Revision 0)
@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2007 The LOST Project. All rights reserved.
+ *
+ * This code is derived from software contributed to the LOST Project
+ * by Antoine Kaufmann.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *     This product includes software developed by the LOST Project
+ *     and its contributors.
+ * 4. Neither the name of the LOST Project nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <assert.h>
+#include <stdio.h>
+
+/**
+ * Prueft ob die Annahme stimmt. Falls sie das nicht tut, wird mit einer
+ * Fehlermeldung abgebrochen.
+ */
+void _assert(const char* assertation, int expression)
+{
+    if (!expression) {
+        fprintf(stderr, "Annahme fehlgeschlagen: %s\n", assertation);
+    }
+}
+

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