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libcamera: utils: call secure_getenv() if it exists or workaround with issetugid()

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When secure_getenv() is not available, need to have a workaround.

Check if secure_getenv() is present, otherwise call issetugid() on its
place.

Signed-off-by: Giulio Benetti <giulio.benetti@micronovasrl.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
[Kieran: include stdlib.h]
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
This commit is contained in:
Giulio Benetti 2019-04-26 10:42:20 +02:00 • committed by Kieran Bingham
parent 46bfc32157
commit ab0188fc8b
1 changed files with 7 additions and 2 deletions
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9
src/libcamera/utils.cpp
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@ -7,8 +7,9 @@
#include "utils.h" #include "utils.h"
#include <stdlib.h>
#include <string.h> #include <string.h>
#include <sys/auxv.h> #include <unistd.h>
/** /**
* \file utils.h * \file utils.h
@ -57,10 +58,14 @@ const char *basename(const char *path)
*/ */
char *secure_getenv(const char *name) char *secure_getenv(const char *name)
{ {
if (getauxval(AT_SECURE)) #if HAVE_SECURE_GETENV
return ::secure_getenv(name);
#else
if (issetugid())
return NULL; return NULL;
return getenv(name); return getenv(name);
#endif
} }
/** /**