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* fhandler_proc.cc (proc_tab): Add entry for cygdrive symlink.

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(format_proc_cygdrive): New function to implement /proc/cygdrive.
This commit is contained in:
Corinna Vinschen 2014-09-05 19:11:01 +00:00
parent c8a01afd97
commit f207699a53
3 changed files with 21 additions and 0 deletions
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5
winsup/cygwin/ChangeLog
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@ -1,3 +1,8 @@
2014-09-05 Corinna Vinschen <corinna@vinschen.de>
* fhandler_proc.cc (proc_tab): Add entry for cygdrive symlink.
(format_proc_cygdrive): New function to implement /proc/cygdrive.
2014-09-05 Corinna Vinschen <corinna@vinschen.de>
* exception.h (class exception): Remove unnecessary #ifdef.

12
winsup/cygwin/fhandler_proc.cc
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@ -17,6 +17,7 @@ details. */
#include "cygerrno.h"
#include "security.h"
#include "path.h"
#include "shared_info.h"
#include "fhandler.h"
#include "fhandler_virtual.h"
#include "pinfo.h"
@ -44,6 +45,7 @@ static off_t format_proc_uptime (void *, char *&);
static off_t format_proc_cpuinfo (void *, char *&);
static off_t format_proc_partitions (void *, char *&);
static off_t format_proc_self (void *, char *&);
static off_t format_proc_cygdrive (void *, char *&);
static off_t format_proc_mounts (void *, char *&);
static off_t format_proc_filesystems (void *, char *&);
static off_t format_proc_swaps (void *, char *&);
@ -55,6 +57,7 @@ static const virt_tab_t proc_tab[] = {
{ _VN ("."), FH_PROC, virt_directory, NULL },
{ _VN (".."), FH_PROC, virt_directory, NULL },
{ _VN ("cpuinfo"), FH_PROC, virt_file, format_proc_cpuinfo },
{ _VN ("cygdrive"), FH_PROC, virt_symlink, format_proc_cygdrive },
{ _VN ("devices"), FH_PROC, virt_file, format_proc_devices },
{ _VN ("filesystems"), FH_PROC, virt_file, format_proc_filesystems },
{ _VN ("loadavg"), FH_PROC, virt_file, format_proc_loadavg },
@ -1328,6 +1331,15 @@ format_proc_self (void *, char *&destbuf)
return __small_sprintf (destbuf, "%d", getpid ());
}
static off_t
format_proc_cygdrive (void *, char *&destbuf)
{
destbuf = (char *) crealloc_abort (destbuf, mount_table->cygdrive_len + 1);
char *dend = stpcpy (destbuf, mount_table->cygdrive);
*--dend = '\0';
return dend - destbuf;
}
static off_t
format_proc_mounts (void *, char *&destbuf)
{

4
winsup/cygwin/release/1.7.33
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@ -5,6 +5,10 @@ What's new:
to do without /etc/passwd and /etc/group files. Introduce /etc/nsswitch.conf
file to configure passwd/group handling.
- /proc/cygdrive as a symlink pointing to the current cygdrive prefix. This
can be utilized in scripts to access paths via cygdrive prefix, even if the
cygdrive prefix has been changed by the user.
What changed:
-------------