Change xexecvep exit codes ; add namespaces sysdep

3 files changed, 15 insertions, 1 deletions

diff --git a/configure b/configure
index 53d5cd6..736b068 100755
--- a/configure
+++ b/configure
@@ -513,6 +513,7 @@ EOF
   choose cl arc4random_addrandom ARC4RANDOM_ADDRANDOM 'arc4random_addrandom()'
   choose clr getrandom GETRANDOM 'getrandom()'
   choose cl itimer ITIMER 'setitimer()'
+  choose cl namespaces NAMESPACES 'namespaces'
 
   echo '#endif' >> $sysdeps/sysdeps.h
 fi
diff --git a/src/libstddjb/xexecvep.c b/src/libstddjb/xexecvep.c
index 3a3363e..294f959 100644
--- a/src/libstddjb/xexecvep.c
+++ b/src/libstddjb/xexecvep.c
@@ -1,10 +1,11 @@
 /* ISC license. */
 
+#include <errno.h>
 #include <skalibs/djbunix.h>
 #include <skalibs/strerr2.h>
 
 void xexecvep (char const *file, char const *const *argv, char const *const *envp, char const *path)
 {
   execvep(file, argv, envp, path) ;
-  strerr_dieexec(111, file) ;
+  strerr_dieexec(errno == ENOENT ? 127 : 126, file) ;
 }
diff --git a/src/sysdeps/trynamespaces.c b/src/sysdeps/trynamespaces.c
new file mode 100644
index 0000000..01894be
--- /dev/null
+++ b/src/sysdeps/trynamespaces.c
@@ -0,0 +1,12 @@
+/* ISC license. */
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+
+#include <sched.h>
+
+int main (void)
+{
+  return unshare(0) ;
+}