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-rw-r--r--src/os_unix.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/os_unix.c b/src/os_unix.c
index 49f6563b1..e5103856b 100644
--- a/src/os_unix.c
+++ b/src/os_unix.c
@@ -5981,7 +5981,9 @@ static int unixFullPathname(
** truncated to make it fit. This is Ok, as SQLite refuses to open any
** file for which this function returns a full path larger than (nOut-8)
** bytes in size. */
- if( zOut[0]!='/' ){
+ testcase( nByte==nOut-5 );
+ testcase( nByte==nOut-4 );
+ if( zOut[0]!='/' && nByte<nOut-4 ){
int nCwd;
int nRem = nOut-nByte-1;
memmove(&zOut[nRem], zOut, nByte+1);