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<TITLE>getcwd syscall fails on 3rd subfolder</TITLE>
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<P><FONT SIZE=2>Hello,<BR>
we use the Gaisler RTEMS Kernel 4-10-1.2.14 on a GR712RC board.<BR>
The following function is used to determine the current working directory on a fatfs:<BR>
<BR>
<BR>
static NtsError fs_pwd_do( int argc, char **argv)<BR>
{<BR>
char *ret = getcwd(NULL, 0);<BR>
if(ret) {<BR>
nts_printf("%s\n", ret);<BR>
free(ret);<BR>
return NTS_OK;<BR>
}<BR>
<BR>
nts_printf("getcwd failed, errno: %d, MAXPATHLEN: %d\n", errno, MAXPATHLEN);<BR>
return NTS_FAILURE;<BR>
}<BR>
<BR>
<BR>
The fatfs was generated using:<BR>
@dd if=/dev/zero of=$(NAME) bs=256 count=1024 > /dev/null<BR>
/sbin/mkfs.vfat -F 12 -S 512 -s 1 -r 512 -f 1 -v $(NAME)<BR>
<BR>
<BR>
This is what happens:<BR>
<BR>
cassis> fs mount<BR>
RAM Disk registered<BR>
mount return: 0<BR>
ram disk addr: 0x64000000<BR>
cassis> fs ls<BR>
3920 dev<BR>
16384 mnt<BR>
cassis> fs pwd<BR>
/<BR>
cassis> fs cwd mnt<BR>
changed to mnt<BR>
cassis> fs pwd<BR>
/mnt<BR>
cassis> fs ls<BR>
512 template<BR>
cassis> fs cwd template<BR>
changed to template<BR>
cassis> fs pwd<BR>
/mnt/template<BR>
cassis><BR>
cassis> fs ls<BR>
512 .<BR>
16384 ..<BR>
512 param<BR>
512 logs<BR>
cassis> fs cwd logs<BR>
changed to logs<BR>
cassis> fs pwd<BR>
getcwd failed, errno: 2, MAXPATHLEN: 1024<BR>
cassis><BR>
<BR>
<BR>
The folder logs is definitely existing:<BR>
cassis> fs dump /mnt/template/logs/housekeeping/log0<BR>
file size: 10<BR>
64 61 63 30 3a 20 31 30 30 0a<BR>
<BR>
A non existing file leeds to:<BR>
cassis> fs dump /mnt/template/logs/housekeeping/log9<BR>
file size: 10<BR>
failure, ret: -1, errno: 2<BR>
<BR>
Has anybody an idea why getcwd() fails (errno 2 means not existent)?<BR>
<BR>
Cheers,<BR>
Marco<BR>
<BR>
</FONT>
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