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Add initial pledge(2) support on OpenBSD (#217)

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On other platforms, this will be a no-op. Fixes #164.
This commit is contained in:
William Orr 2019-01-07 10:25:43 -05:00 • committed by David Hill
parent 69385ecedb
commit d619f904b9
4 changed files with 17 additions and 2 deletions
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3
freebsd/Makefile
View file

@ -27,6 +27,7 @@ all: spectrwm libswmhack.so.$(LVERS)
spectrwm.c:
ln -sf ../spectrwm.c
ln -sf ../version.h
ln -sf ../linux/pledge.h
swm_hack.c:
ln -sf ../lib/swm_hack.c
@ -50,7 +51,7 @@ install: all
ln -sf spectrwm $(SWM_BINDIR)/scrotwm
clean:
rm -f spectrwm *.o *.so libswmhack.so.* spectrwm.c swm_hack.c version.h
rm -f spectrwm *.o *.so libswmhack.so.* spectrwm.c swm_hack.c version.h pledge.h
.PHONY: all install clean

1
linux/pledge.h Normal file
View file

@ -0,0 +1 @@
#define pledge(promises, execpromises) (0)

3
osx/Makefile
View file

@ -37,6 +37,7 @@ spectrwm.c:
ln -sf ../linux/tree.h
ln -sf ../spectrwm.c
ln -sf ../version.h
ln -sf ../linux/pledge.h
swm_hack.c:
ln -sf ../lib/swm_hack.c
@ -64,6 +65,6 @@ install: all
ln -sf libswmhack.so.0.0 $(DESTDIR)$(LIBDIR)/libswmhack.so
clean:
rm -f spectrwm *.o *.so libswmhack.so.* spectrwm.c swm_hack.c tree.h version.h
rm -f spectrwm *.o *.so libswmhack.so.* spectrwm.c swm_hack.c tree.h version.h pledge.h
.PHONY: all install clean

12
spectrwm.c
View file

@ -54,6 +54,9 @@
#include <fcntl.h>
#include <locale.h>
#include <paths.h>
#if !defined(__OpenBSD__)
#include "pledge.h"
#endif
#include <pwd.h>
#include <regex.h>
#include <signal.h>
@ -3863,6 +3866,9 @@ spawn(int ws_idx, union arg *args, bool close_fd)
if (args == NULL || args->argv[0] == NULL)
return;
if (pledge("stdio proc exec", NULL) == -1)
err(1, "pledge");
DNPRINTF(SWM_D_MISC, "%s\n", args->argv[0]);
close(xcb_get_file_descriptor(conn));
@ -12452,6 +12458,9 @@ main(int argc, char *argv[])
if (setlocale(LC_CTYPE, "") == NULL || setlocale(LC_TIME, "") == NULL)
warnx("no locale support");
if (pledge("stdio rpath proc exec getpw dns unix", NULL) == -1)
err(1, "pledge");
/* handle some signals */
bzero(&sact, sizeof(sact));
sigemptyset(&sact.sa_mask);
@ -12478,6 +12487,9 @@ main(int argc, char *argv[])
xcb_prefetch_extension_data(conn, &xcb_randr_id);
xfd = xcb_get_file_descriptor(conn);
if (pledge("stdio rpath proc exec getpw", NULL) == -1)
err(1, "pledge");
/* look for local and global conf file */
pwd = getpwuid(getuid());
if (pwd == NULL)