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authorEric Andersen <andersen@codepoet.org>2005-08-15 22:18:26 +0000
committerEric Andersen <andersen@codepoet.org>2005-08-15 22:18:26 +0000
commit8b995a0e60df749e43af032cc9570ee55b918105 (patch)
tree1eb51a1c86118a4b6039d823f549f01afc56d5f2 /libc/sysdeps/linux/common
parent5833ba3946c09cf5af0ccf5bc61626f1f4a60825 (diff)
For current kernels, we just use the getcwd() syscall. For old 2.0 linux
kernels, we need this bit to make the non-syscall version that recurses up the directory path work properly. Thanks go to Harald Kuethe for sorting this out.
Diffstat (limited to 'libc/sysdeps/linux/common')
-rw-r--r--libc/sysdeps/linux/common/getcwd.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/libc/sysdeps/linux/common/getcwd.c b/libc/sysdeps/linux/common/getcwd.c
index daf056e98..a1de4510c 100644
--- a/libc/sysdeps/linux/common/getcwd.c
+++ b/libc/sysdeps/linux/common/getcwd.c
@@ -10,7 +10,7 @@
#ifdef __NR_getcwd
#define __NR___syscall_getcwd __NR_getcwd
-static inline
+static inline
_syscall2(int, __syscall_getcwd, char *, buf, unsigned long, size);
#else
@@ -134,6 +134,15 @@ int __syscall_getcwd(char * buf, unsigned long size)
olderrno = errno;
len = -1;
+
+ /* get stat for root to have a valid parameters for the terminating condition */
+ if (stat("/", &st) < 0) {
+ /* root dir not found! */
+ return -1;
+ }
+ /* start with actual dir */
+ if (buf) strncpy(buf, ".", size);
+
cwd = recurser(buf, size, st.st_dev, st.st_ino);
if (cwd) {
len = strlen(buf);