* src/misc.c (make_toui): Parse a string into an unsigned int

* src/makeint.h: Declare it.
* src/arscan.c (ar_scan): Replace atoi() calls with make_toui().
Modify some integral types to be more correct.
* src/job.c (load_too_high): Replace atoi() calls with make_toui().
* src/main.c (main): Ditto.
(decode_switches): Ditto.

1 files changed, 19 insertions, 0 deletions

diff --git a/src/misc.c b/src/misc.c
index b03f2a3a..624cd058 100644
--- a/src/misc.c
+++ b/src/misc.c
@@ -34,6 +34,25 @@ this program.  If not, see <http://www.gnu.org/licenses/>.  */
 # include <sys/file.h>
 #endif
 
+unsigned int
+make_toui (const char *str, const char **error)
+{
+  char *end;
+  unsigned long val = strtoul (str, &end, 10);
+
+  if (error)
+    {
+      if (str[0] == '\0')
+        *error = "Missing value";
+      else if (*end != '\0')
+        *error = "Invalid value";
+      else
+        *error = NULL;
+    }
+
+  return val;
+}
+
 /* Compare strings *S1 and *S2.
    Return negative if the first is less, positive if it is greater,
    zero if they are equal.  */