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In attempting to enable building various part of Android with -Wall -Werror, we found that the const security_context_t declarations in libselinux are incorrect; const char * was intended, but const security_context_t translates to char * const and triggers warnings on passing const char * from the caller. Easiest fix is to replace them all with const char *. And while we are at it, just get rid of all usage of security_context_t itself as it adds no value - there is no true encapsulation of the security context strings and callers already directly use string functions on them. typedef left to permit building legacy users until such a time as all are updated. This is a port of Change-Id I2f9df7bb9f575f76024c3e5f5b660345da2931a7 from Android, augmented to deal with all of the other code in upstream libselinux and updating the man pages too. Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov> Acked-by: Eric Paris <eparis@redhat.com>
58 lines
1.7 KiB
Groff
58 lines
1.7 KiB
Groff
.TH "getfscreatecon" "3" "1 January 2004" "russell@coker.com.au" "SELinux API documentation"
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.SH "NAME"
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getfscreatecon, setfscreatecon \- get or set the SELinux security context used for creating a new file system object
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.
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.SH "SYNOPSIS"
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.B #include <selinux/selinux.h>
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.sp
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.BI "int getfscreatecon(char **" con );
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.sp
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.BI "int getfscreatecon_raw(char **" con );
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.sp
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.BI "int setfscreatecon(char * "context );
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.sp
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.BI "int setfscreatecon_raw(char * "context );
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.
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.SH "DESCRIPTION"
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.BR getfscreatecon ()
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retrieves the context used for creating a new file system object.
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This returned context should be freed with
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.BR freecon (3)
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if non-NULL.
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.BR getfscreatecon ()
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sets *con to NULL if no fscreate context has been explicitly
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set by the program (i.e. using the default policy behavior).
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.BR setfscreatecon ()
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sets the context used for creating a new file system object.
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NULL can be passed to
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.BR setfscreatecon ()
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to reset to the default policy behavior.
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The fscreate context is automatically reset after the next
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.BR execve (2),
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so a program doesn't need to explicitly sanitize it upon startup.
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.BR setfscreatecon ()
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can be applied prior to library
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functions that internally perform an file creation,
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in order to set an file context on the objects.
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.BR getfscreatecon_raw ()
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and
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.BR setfscreatecon_raw ()
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behave identically to their non-raw counterparts but do not perform context
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translation.
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.B Note:
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Signal handlers that perform a
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.BR setfscreatecon ()
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must take care to
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save, reset, and restore the fscreate context to avoid unexpected behavior.
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.
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.SH "RETURN VALUE"
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On error \-1 is returned.
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On success 0 is returned.
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.
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.SH "SEE ALSO"
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.BR selinux "(8), " freecon "(3), " getcon "(3), " getexeccon "(3)"
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