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Code Issues Releases Wiki Activity

Fixed handling relative link targets in the ReadLink() function

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This commit is contained in:
Klaus Schmidinger 2006-06-17 09:48:50 +02:00
parent 182224b65f
commit 9fe7b98cdb
3 changed files with 12 additions and 15 deletions
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1
CONTRIBUTORS
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@ -1794,6 +1794,7 @@ Ingo Schneider <mail@ingo-schneider.de>
Patrick Cernko <errror@errror.org>
for suggesting to add a note about "modprobe capability" to INSTALL
for reporting a problem with relative link targets in the ReadLink() function
Philippe Gramoullé <philippe@gramoulle.com>
for reporting a a missing '-' in the example for viewing a grabbed image on a remote

4
HISTORY
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@ -4783,7 +4783,7 @@ Video Disk Recorder Revision History
so that they can be suppressed in normal operation mode to avoid clogging the
log file in case this function is used frequently (suggested by Helmut Auer).
2006-06-16: Version 1.4.1-1
2006-06-17: Version 1.4.1-1
- Added "-fPIC" to the compiler options in Make.config.template when compiling
plugins (thanks to Udo Richter). If you use your own Make.config file, you may
@ -4797,3 +4797,5 @@ Video Disk Recorder Revision History
- Modified rcu.c to better handle RC5 codes.
- Added a missing variable initialization in cRingBufferLinear::cRingBufferLinear()
(thanks to Prakash Punnoor).
- Fixed handling relative link targets in the ReadLink() function (reported by
Patrick Cernko).

22
tools.c
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@ -4,7 +4,7 @@
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: tools.c 1.118 2006/05/26 10:10:31 kls Exp $
* $Id: tools.c 1.119 2006/06/17 09:45:32 kls Exp $
*/
#include "tools.h"
@ -480,22 +480,16 @@ int DirSizeMB(const char *DirName)
char *ReadLink(const char *FileName)
{
char RealName[PATH_MAX];
const char *TargetName = NULL;
int n = readlink(FileName, RealName, sizeof(RealName) - 1);
if (n < 0) {
if (errno == ENOENT || errno == EINVAL) // file doesn't exist or is not a symlink
TargetName = FileName;
if (!FileName)
return NULL;
char *TargetName = canonicalize_file_name(FileName);
if (!TargetName) {
if (errno == ENOENT) // file doesn't exist
TargetName = strdup(FileName);
else // some other error occurred
LOG_ERROR_STR(FileName);
}
else if (n < int(sizeof(RealName))) { // got it!
RealName[n] = 0;
TargetName = RealName;
}
else
esyslog("ERROR: symlink's target name too long: %s", FileName);
return TargetName ? strdup(TargetName) : NULL;
return TargetName;
}
bool SpinUpDisk(const char *FileName)