Fix open, add getcwd, lstat, setenv, unsetenv and evil_homedir_get and fix typo in doc

SVN revision: 34718

legacy/evil/ChangeLog

@@ -1,3 +1,11 @@
+2008-06-01  Vincent Torri  <doursse at users dot sf dot net>
+
+	* src/lib/Evil.h:
+	* src/lib/evil.c:
+	add open with several arguments
+	add getcwd, lstat, setenv, unsetenv and evil_homedir_get.
+	typo in doc
+
 2008-06-01  Vincent Torri  <doursse at users dot sf dot net>
 
 	* src/lib/dlfcn/dlfcn.c:

legacy/evil/src/lib/Evil.h

@@ -319,12 +319,14 @@ EAPI int pipe(int *fds);
 #  define S_IWOTH S_IWUSR
 #  define S_IXGRP S_IXUSR
 #  define S_IXOTH S_IXUSR
-#  define open(path,flag,mode) _open((path),(flag),(mode))
+#  define open(path,...) _open((path),__VA_ARGS__)
 #  define close(fd) _close(fd)
 #  define read(fd,buffer,count) _read((fd),(buffer),(count))
 #  define write(fd,buffer,count) _write((fd),(buffer),(count))
 #  define unlink(filename) _unlink((filename))
 #  define mkdir(p,m) _mkdir(p)
+#  define getcwd(b,s) _getcwd((b),(s))
+#  define lstat(f,s) _stat((f),(s))
 
 # endif
 #endif
@@ -361,7 +363,7 @@ EAPI char *realpath(const char *file_name, char *resolved_name);
  * @return 1 on success, 0 otherwise.
  *
  * Initiates the use of Windows sockets. If the function succeeds,
- * it returns 1, otherwise it return 0.
+ * it returns 1, otherwise it returns 0.
  *
  * Conformity: Non applicable.
  *
@@ -386,13 +388,55 @@ EAPI int evil_sockets_init(void);
  */
 EAPI void evil_sockets_shutdown(void);
 
+/**
+ * @brief Create, modify, or remove environment variables.
+ *
+ * @param name The name of the environment variable.
+ * @param value The value of the environment variable to set.
+ * @return 0 on success, -1 otherwise.
+ *
+ * Add the new environment variable @p name or modify its value if it
+ * exists, and set it to @p value. Environment variables define the
+ * environment in which a process executes. If @p value is @c NULL, the
+ * variable is removed (unset) and that call is equivalent to unsetenv().
+ * If the function succeeds, it returns 0, otherwise it returns -1.
+ *
+ * Conformity: Non applicable.
+ *
+ * Supported OS: Windows 95, Windows 98, Windows Me, Windows NT, Windows 2000,
+ * Windows XP.
+ *
+ * @ingroup Evil
+ */
+EAPI int setenv(const char *name, const char *value);
+
+/**
+ * @brief Remove environment variables.
+ *
+ * @param name The name of the environment variable.
+ * @return 0 on success, -1 otherwise.
+ *
+ * Remove the new environment variable @p name if it exists. That
+ * function is equivalent to setenv() with its second parameter to
+ * @c NULL. If the function succeeds, it returns 0, otherwise it
+ * returns -1.
+ *
+ * Conformity: Non applicable.
+ *
+ * Supported OS: Windows 95, Windows 98, Windows Me, Windows NT, Windows 2000,
+ * Windows XP.
+ *
+ * @ingroup Evil
+ */
+EAPI int unsetenv(const char *name);
+
 /**
  * @brief Return a dir to store temporary files.
  *
  * @return The directory to store temporary files.
  *
  * Return a directory to store temporary files. The function gets
- * the value of the followig environment variables, and in that order:
+ * the value of the following environment variables, and in that order:
  * - TMP
  * - TEMP
  * - USERPROFILE
@@ -407,9 +451,30 @@ EAPI void evil_sockets_shutdown(void);
  *
  * @ingroup Evil
  */
-
 EAPI const char *evil_tmpdir_get(void);
 
+/**
+ * @brief Return a dir to store personal files.
+ *
+ * @return The directory to store personal files.
+ *
+ * Return a directory to store personal files. The function gets
+ * the value of the following environment variables, and in that order:
+ * - HOME
+ * - USERPROFILE
+ * - WINDIR
+ * and returns its value if it exists. If none exists, the function
+ * returns "C:\".
+ *
+ * Conformity: Non applicable.
+ *
+ * Supported OS: Windows 95, Windows 98, Windows Me, Windows NT, Windows 2000,
+ * Windows XP.
+ *
+ * @ingroup Evil
+ */
+  EAPI const char *evil_homedir_get(void);
+
 /**
  * @brief Get the current directory.
  *

legacy/evil/src/lib/evil.c

@@ -388,6 +388,38 @@ evil_sockets_shutdown(void)
    WSACleanup();
 }
 
+int
+setenv(const char *name, const char *value)
+{
+  char *str;
+  int   length;
+  int   res;
+
+  length = strlen(name) + strlen(value) + 2;
+  str = (char *)malloc(length);
+  sprintf(str, "%s=%s", name, value);
+  res = _putenv(str);
+  free(str);
+
+  return res;
+}
+
+int
+unsetenv(const char *name)
+{
+  char *str;
+  int   length;
+  int   res;
+
+  length = strlen(name) + 2;
+  str = (char *)malloc(length);
+  sprintf(str, "%s=", name);
+  res = _putenv(str);
+  free(str);
+
+  return res;
+}
+
 const char *
 evil_tmpdir_get(void)
 {
@@ -402,6 +434,19 @@ evil_tmpdir_get(void)
    return tmpdir;
 }
 
+const char *
+evil_homedir_get(void)
+{
+   char *homedir;
+
+   homedir = getenv("HOME");
+   if (!homedir) homedir = getenv("USERPROFILE");
+   if (!homedir) homedir = getenv("WINDIR");
+   if (!homedir) homedir="C:\\";
+
+   return homedir;
+}
+
 char *
 evil_getcwd(char *buffer, size_t size)
 {