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    commit 30ce2cc002585409b36c630512c6ca4db8f88f15
    parent 041912a791e8c2f4d5d2415b16210d29d7e701c5
    Author: Hiltjo Posthuma <hiltjo@codemadness.org>
    Date:   Fri, 25 May 2018 11:59:28 +0200

    Pledge on OpenBSD

    Diffstat:
    Mconfig.mk | 6++++++
    Mst.c | 8++++++++

    2 files changed, 14 insertions(+), 0 deletions(-)
    diff --git a/config.mk b/config.mk
    @@ -23,6 +23,12 @@ CPPFLAGS = -DVERSION=\"$(VERSION)\" -D_XOPEN_SOURCE=600
     STCFLAGS = $(INCS) $(CPPFLAGS) $(CFLAGS)
     STLDFLAGS = $(LIBS) $(LDFLAGS)

    +# OpenBSD:
    +#CPPFLAGS = -DVERSION=\"$(VERSION)\" -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
    +#LIBS = -L$(X11LIB) -lm -lX11 -lutil -lXft \
    +#       `pkg-config --libs fontconfig` \
    +#       `pkg-config --libs freetype2`
    +
     # compiler and linker
     # CC = c99

    diff --git a/st.c b/st.c
    @@ -28,6 +28,10 @@
      #include <libutil.h>
     #endif

    +#ifndef __OpenBSD__
    +#define pledge(a,b) 0
    +#endif
    +
     /* Arbitrary sizes */
     #define UTF_INVALID   0xFFFD
     #define UTF_SIZ       4
    @@ -806,9 +810,13 @@ ttynew(char *line, char *cmd, char *out, char **args)
     			die("ioctl TIOCSCTTY failed: %s\n", strerror(errno));
     		close(s);
     		close(m);
    +		if (pledge("stdio getpw proc exec", NULL) == -1)
    +			die("pledge\n");
     		execsh(cmd, args);
     		break;
     	default:
    +		if (pledge("stdio rpath tty proc", NULL) == -1)
    +			die("pledge\n");
     		close(s);
     		cmdfd = m;
     		signal(SIGCHLD, sigchld);