1 files changed, 64 insertions, 60 deletions
diff --git a/src/tools/ares_getopt.c b/src/tools/ares_getopt.c
index 1e02d08..b49606f 100644
--- a/src/tools/ares_getopt.c
+++ b/src/tools/ares_getopt.c
@@ -36,6 +36,8 @@
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
  */
 
 /* #if !defined(lint)
@@ -48,75 +50,77 @@
 #include <string.h>
 #include "ares_getopt.h"
 
-int   opterr = 1,     /* if error message should be printed */
-      optind = 1;     /* index into parent argv vector */
-int   optopt = 0;     /* character checked for validity */
-static int optreset;  /* reset getopt */
-char  *optarg;        /* argument associated with option */
+int        opterr = 1; /* if error message should be printed */
+int        optind = 1; /* index into parent argv vector */
+int        optopt = 0; /* character checked for validity */
+static int optreset;   /* reset getopt */
+char      *optarg;     /* argument associated with option */
 
-#define  BADCH   (int)'?'
-#define  BADARG  (int)':'
-#define  EMSG    (char *)""
+#define BADCH  (int)'?'
+#define BADARG (int)':'
+#define EMSG   (char *)""
 
 /*
  * ares_getopt --
  *    Parse argc/argv argument vector.
  */
-int
-ares_getopt(int nargc, char * const nargv[], const char *ostr)
+int ares_getopt(int nargc, char * const nargv[], const char *ostr)
 {
-    static char *place = EMSG;                /* option letter processing */
-    char *oli;                                /* option letter list index */
+  static char *place = EMSG; /* option letter processing */
+  char        *oli;          /* option letter list index */
 
-    if (optreset || !*place) {                /* update scanning pointer */
-        optreset = 0;
-        if (optind >= nargc || *(place = nargv[optind]) != '-') {
-            place = EMSG;
-            return (EOF);
-        }
-        if (place[1] && *++place == '-') {    /* found "--" */
-            ++optind;
-            place = EMSG;
-            return (EOF);
-        }
-    }                                         /* option letter okay? */
-    if ((optopt = (int)*place++) == (int)':' ||
-        (oli = strchr(ostr, optopt)) == NULL) {
-        /*
-         * if the user didn't specify '-' as an option,
-         * assume it means EOF.
-         */
-        if (optopt == (int)'-')
-            return (EOF);
-        if (!*place)
-            ++optind;
-        if (opterr && *ostr != ':')
-            (void)fprintf(stderr,
-                "%s: illegal option -- %c\n", __FILE__, optopt);
-        return (BADCH);
+  if (optreset || !*place) { /* update scanning pointer */
+    optreset = 0;
+    if (optind >= nargc || *(place = nargv[optind]) != '-') {
+      place = EMSG;
+      return (EOF);
+    }
+    if (place[1] && *++place == '-') { /* found "--" */
+      ++optind;
+      place = EMSG;
+      return (EOF);
+    }
+  } /* option letter okay? */
+  if ((optopt = (int)*place++) == (int)':' ||
+      (oli = strchr(ostr, optopt)) == NULL) {
+    /*
+     * if the user didn't specify '-' as an option,
+     * assume it means EOF.
+     */
+    if (optopt == (int)'-') {
+      return (EOF);
+    }
+    if (!*place) {
+      ++optind;
+    }
+    if (opterr && *ostr != ':') {
+      (void)fprintf(stderr, "%s: illegal option -- %c\n", __FILE__, optopt);
     }
-    if (*++oli != ':') {                      /* don't need argument */
-        optarg = NULL;
-        if (!*place)
-            ++optind;
+    return (BADCH);
+  }
+  if (*++oli != ':') { /* don't need argument */
+    optarg = NULL;
+    if (!*place) {
+      ++optind;
     }
-    else {                                    /* need an argument */
-        if (*place)                           /* no white space */
-            optarg = place;
-        else if (nargc <= ++optind) {         /* no arg */
-            place = EMSG;
-            if (*ostr == ':')
-                return (BADARG);
-            if (opterr)
-                (void)fprintf(stderr,
-                    "%s: option requires an argument -- %c\n",
-                    __FILE__, optopt);
-            return (BADCH);
-        }
-         else                                 /* white space */
-            optarg = nargv[optind];
-        place = EMSG;
-        ++optind;
+  } else {                          /* need an argument */
+    if (*place) {                   /* no white space */
+      optarg = place;
+    } else if (nargc <= ++optind) { /* no arg */
+      place = EMSG;
+      if (*ostr == ':') {
+        return (BADARG);
+      }
+      if (opterr) {
+        (void)fprintf(stderr, "%s: option requires an argument -- %c\n",
+                      __FILE__, optopt);
+      }
+      return (BADCH);
+    } else { /* white space */
+      optarg = nargv[optind];
     }
-    return (optopt);                          /* dump back option letter */
+    place = EMSG;
+    ++optind;
+  }
+  return (optopt); /* dump back option letter */
 }