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authorUlrich Drepper <drepper@gmail.com>2011-05-08 08:37:19 -0400
committerUlrich Drepper <drepper@gmail.com>2011-05-08 08:37:19 -0400
commit7fb90fb89bbdf273ab7ab96517fe1b156cd7aee1 (patch)
treec9fb5b27f0c75b57cd3090e2f3c857feba542f41 /sysdeps/unix/sysv/linux/dl-getcwd.c
parent28377d1bf58625172a1734b92e835591d4d23a18 (diff)
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Fix Linux getcwd for long paths
The getcwd syscall (so far?) can only handle path up to one page
in size.  There is no limit about directory hierarchy depth, though,
and the POSIX getcwd is supposed to handle this.  In that case fall
back to the generic getcwd.

Additionally, optimize the generic getcwd to use openat when possible
to change the asymptotic performance from O(N^2) to O(n).
Diffstat (limited to 'sysdeps/unix/sysv/linux/dl-getcwd.c')
-rw-r--r--sysdeps/unix/sysv/linux/dl-getcwd.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/dl-getcwd.c b/sysdeps/unix/sysv/linux/dl-getcwd.c
new file mode 100644
index 0000000000..4bd5657f1e
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/dl-getcwd.c
@@ -0,0 +1 @@
+#include "getcwd.c"