symbian-qemu-0.9.1-12/python-2.6.1/Python/getcwd.c
changeset 1 2fb8b9db1c86
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/python-2.6.1/Python/getcwd.c	Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,83 @@
+
+/* Two PD getcwd() implementations.
+   Author: Guido van Rossum, CWI Amsterdam, Jan 1991, <guido@cwi.nl>. */
+
+#include <stdio.h>
+#include <errno.h>
+
+#ifdef HAVE_GETWD
+
+/* Version for BSD systems -- use getwd() */
+
+#ifdef HAVE_SYS_PARAM_H
+#include <sys/param.h>
+#endif
+
+#ifndef MAXPATHLEN
+#if defined(PATH_MAX) && PATH_MAX > 1024
+#define MAXPATHLEN PATH_MAX
+#else
+#define MAXPATHLEN 1024
+#endif
+#endif
+
+extern char *getwd(char *);
+
+char *
+getcwd(char *buf, int size)
+{
+	char localbuf[MAXPATHLEN+1];
+	char *ret;
+	
+	if (size <= 0) {
+		errno = EINVAL;
+		return NULL;
+	}
+	ret = getwd(localbuf);
+	if (ret != NULL && strlen(localbuf) >= (size_t)size) {
+		errno = ERANGE;
+		return NULL;
+	}
+	if (ret == NULL) {
+		errno = EACCES; /* Most likely error */
+		return NULL;
+	}
+	strncpy(buf, localbuf, size);
+	return buf;
+}
+
+#else /* !HAVE_GETWD */
+
+/* Version for really old UNIX systems -- use pipe from pwd */
+
+#ifndef PWD_CMD
+#define PWD_CMD "/bin/pwd"
+#endif
+
+char *
+getcwd(char *buf, int size)
+{
+	FILE *fp;
+	char *p;
+	int sts;
+	if (size <= 0) {
+		errno = EINVAL;
+		return NULL;
+	}
+	if ((fp = popen(PWD_CMD, "r")) == NULL)
+		return NULL;
+	if (fgets(buf, size, fp) == NULL || (sts = pclose(fp)) != 0) {
+		errno = EACCES; /* Most likely error */
+		return NULL;
+	}
+	for (p = buf; *p != '\n'; p++) {
+		if (*p == '\0') {
+			errno = ERANGE;
+			return NULL;
+		}
+	}
+	*p = '\0';
+	return buf;
+}
+
+#endif /* !HAVE_GETWD */