1 files changed, 46 insertions, 0 deletions
diff --git a/src/include/skalibs/sgetopt.h b/src/include/skalibs/sgetopt.h
new file mode 100644
index 0000000..367edf3
--- /dev/null
+++ b/src/include/skalibs/sgetopt.h
@@ -0,0 +1,46 @@
+/* ISC license. */
+
+#ifndef SGETOPT_H
+#define SGETOPT_H
+
+
+ /* reentrant */
+
+typedef struct subgetopt_s subgetopt_t, *subgetopt_t_ref ;
+struct subgetopt_s
+{
+  int ind ;
+  int err ;
+  int problem ;
+  char const *arg ;
+  unsigned int pos ;
+  char const *prog ;
+} ;
+
+#define SUBGETOPT_ZERO { .ind = 1, .err = 1, .problem = 0, .arg = 0, .pos = 0, .prog = 0 }
+
+extern int subgetopt_r (int, char const *const *, char const *, subgetopt_t_ref) ;
+
+
+ /* non-reentrant */
+
+extern int sgetopt_r (int, char const *const *, char const *, subgetopt_t_ref) ;
+
+extern subgetopt_t subgetopt_here ;
+
+#define subgetopt(argc, argv, opts) subgetopt_r((argc), (argv), (opts), &subgetopt_here)
+#define sgetopt(argc, argv, opts) sgetopt_r((argc), (argv), (opts), &subgetopt_here)
+#define sgetopt_prog() (subgetopt_here.prog = PROG)
+
+/* define SUBGETOPT_SHORT if you don't mind potential name conflicts */
+
+#ifdef SUBGETOPT_SHORT
+# define getopt sgetopt
+# define optarg subgetopt_here.arg
+# define optind subgetopt_here.ind
+# define opterr subgetopt_here.err
+# define optopt subgetopt_here.problem
+# define opteof (-1)
+#endif
+
+#endif