diff --git a/plugins/sudoers/gram.c b/plugins/sudoers/gram.c
index c11fababc..e403c223a 100644
--- a/plugins/sudoers/gram.c
+++ b/plugins/sudoers/gram.c
@@ -159,10 +159,10 @@ struct sudoers_parse_tree parsed_policy = {
  * Local prototypes
  */
 static void init_options(struct command_options *opts);
-static bool add_defaults(int, struct member *, struct defaults *);
+static bool add_defaults(short, struct member *, struct defaults *);
 static bool add_userspec(struct member *, struct privilege *);
 static struct defaults *new_default(char *, char *, short);
-static struct member *new_member(char *, int);
+static struct member *new_member(char *, short);
 static struct sudo_command *new_command(char *, char *);
 static struct command_digest *new_digest(unsigned int, char *);
 static void alias_error(const char *name, int errnum);
@@ -3406,7 +3406,7 @@ yyreturnlab:
 void
 sudoerserrorf(const char *fmt, ...)
 {
-    const int column = sudolinebuf.toke_start + 1;
+    const int column = (int)(sudolinebuf.toke_start + 1);
     va_list ap;
     debug_decl(sudoerserrorf, SUDOERS_DEBUG_PARSER);
 
@@ -3438,8 +3438,8 @@ sudoerserrorf(const char *fmt, ...)
 		    tofree = NULL;
 		}
 	    }
-	    sudo_printf(SUDO_CONV_ERROR_MSG, _("%s:%d:%d: %s\n"), sudoers,
-		this_lineno, (int)sudolinebuf.toke_start + 1, s);
+	    sudo_printf(SUDO_CONV_ERROR_MSG, _("%s:%d:%zu: %s\n"), sudoers,
+		this_lineno, sudolinebuf.toke_start + 1, s);
 	    free(tofree);
 	    va_end(ap);
 	    sudoers_setlocale(oldlocale, NULL);
@@ -3515,7 +3515,7 @@ new_default(char *var, char *val, short op)
     d->op = op;
     /* d->binding = NULL; */
     d->line = this_lineno;
-    d->column = sudolinebuf.toke_start + 1;
+    d->column = (int)(sudolinebuf.toke_start + 1);
     d->file = sudo_rcstr_addref(sudoers);
     HLTQ_INIT(d, entries);
 
@@ -3523,7 +3523,7 @@ new_default(char *var, char *val, short op)
 }
 
 static struct member *
-new_member(char *name, int type)
+new_member(char *name, short type)
 {
     struct member *m;
     debug_decl(new_member, SUDOERS_DEBUG_PARSER);
@@ -3608,7 +3608,7 @@ free_defaults_binding(struct defaults_binding *binding)
  * or runas users the entries apply to (determined by the type).
  */
 static bool
-add_defaults(int type, struct member *bmem, struct defaults *defs)
+add_defaults(short type, struct member *bmem, struct defaults *defs)
 {
     struct defaults *d, *next;
     struct defaults_binding *binding;
@@ -3667,7 +3667,7 @@ add_userspec(struct member *members, struct privilege *privs)
     }
     /* We already parsed the newline so sudolineno is off by one. */
     u->line = sudolineno - 1;
-    u->column = sudolinebuf.toke_start + 1;
+    u->column = (int)(sudolinebuf.toke_start + 1);
     u->file = sudo_rcstr_addref(sudoers);
     parser_leak_remove(LEAK_MEMBER, members);
     HLTQ_TO_TAILQ(&u->users, members, entries);
diff --git a/plugins/sudoers/gram.y b/plugins/sudoers/gram.y
index 130ba2aa1..358dae275 100644
--- a/plugins/sudoers/gram.y
+++ b/plugins/sudoers/gram.y
@@ -76,10 +76,10 @@ struct sudoers_parse_tree parsed_policy = {
  * Local prototypes
  */
 static void init_options(struct command_options *opts);
-static bool add_defaults(int, struct member *, struct defaults *);
+static bool add_defaults(short, struct member *, struct defaults *);
 static bool add_userspec(struct member *, struct privilege *);
 static struct defaults *new_default(char *, char *, short);
-static struct member *new_member(char *, int);
+static struct member *new_member(char *, short);
 static struct sudo_command *new_command(char *, char *);
 static struct command_digest *new_digest(unsigned int, char *);
 static void alias_error(const char *name, int errnum);
@@ -1223,7 +1223,7 @@ group		:	ALIAS {
 void
 sudoerserrorf(const char *fmt, ...)
 {
-    const int column = sudolinebuf.toke_start + 1;
+    const int column = (int)(sudolinebuf.toke_start + 1);
     va_list ap;
     debug_decl(sudoerserrorf, SUDOERS_DEBUG_PARSER);
 
@@ -1255,8 +1255,8 @@ sudoerserrorf(const char *fmt, ...)
 		    tofree = NULL;
 		}
 	    }
-	    sudo_printf(SUDO_CONV_ERROR_MSG, _("%s:%d:%d: %s\n"), sudoers,
-		this_lineno, (int)sudolinebuf.toke_start + 1, s);
+	    sudo_printf(SUDO_CONV_ERROR_MSG, _("%s:%d:%zu: %s\n"), sudoers,
+		this_lineno, sudolinebuf.toke_start + 1, s);
 	    free(tofree);
 	    va_end(ap);
 	    sudoers_setlocale(oldlocale, NULL);
@@ -1332,7 +1332,7 @@ new_default(char *var, char *val, short op)
     d->op = op;
     /* d->binding = NULL; */
     d->line = this_lineno;
-    d->column = sudolinebuf.toke_start + 1;
+    d->column = (int)(sudolinebuf.toke_start + 1);
     d->file = sudo_rcstr_addref(sudoers);
     HLTQ_INIT(d, entries);
 
@@ -1340,7 +1340,7 @@ new_default(char *var, char *val, short op)
 }
 
 static struct member *
-new_member(char *name, int type)
+new_member(char *name, short type)
 {
     struct member *m;
     debug_decl(new_member, SUDOERS_DEBUG_PARSER);
@@ -1425,7 +1425,7 @@ free_defaults_binding(struct defaults_binding *binding)
  * or runas users the entries apply to (determined by the type).
  */
 static bool
-add_defaults(int type, struct member *bmem, struct defaults *defs)
+add_defaults(short type, struct member *bmem, struct defaults *defs)
 {
     struct defaults *d, *next;
     struct defaults_binding *binding;
@@ -1484,7 +1484,7 @@ add_userspec(struct member *members, struct privilege *privs)
     }
     /* We already parsed the newline so sudolineno is off by one. */
     u->line = sudolineno - 1;
-    u->column = sudolinebuf.toke_start + 1;
+    u->column = (int)(sudolinebuf.toke_start + 1);
     u->file = sudo_rcstr_addref(sudoers);
     parser_leak_remove(LEAK_MEMBER, members);
     HLTQ_TO_TAILQ(&u->users, members, entries);
diff --git a/plugins/sudoers/timestamp.c b/plugins/sudoers/timestamp.c
index fa956c6dc..d48342dd6 100644
--- a/plugins/sudoers/timestamp.c
+++ b/plugins/sudoers/timestamp.c
@@ -187,8 +187,8 @@ ts_find_record(int fd, struct timestamp_entry *key, struct timestamp_entry *entr
 		cur.size, sizeof(cur));
 	    if (lseek(fd, (off_t)cur.size - (off_t)sizeof(cur), SEEK_CUR) == -1) {
 		sudo_debug_printf(SUDO_DEBUG_ERROR|SUDO_DEBUG_ERRNO|SUDO_DEBUG_LINENO,
-		    "unable to seek forward %d",
-		    (int)cur.size - (int)sizeof(cur));
+		    "unable to seek forward %zd",
+		    cur.size - ssizeof(cur));
 		break;
 	    }
 	    if (cur.size == 0)
diff --git a/plugins/sudoers/tsgetgrpw.c b/plugins/sudoers/tsgetgrpw.c
index 19fb798c4..f9843ace0 100644
--- a/plugins/sudoers/tsgetgrpw.c
+++ b/plugins/sudoers/tsgetgrpw.c
@@ -350,13 +350,14 @@ testsudoers_getgrouplist2_v1(const char *name, GETGROUPS_T basegid,
     GETGROUPS_T **groupsp, int *ngroupsp)
 {
     GETGROUPS_T *groups = *groupsp;
-    int i, grpsize, ngroups = 1;
+    int i, ngroups = 1;
+    long grpsize;
     int ret = -1;
     struct group *grp;
 
     if (groups == NULL) {
 	/* Dynamically-sized group vector. */
-	grpsize = (int)sysconf(_SC_NGROUPS_MAX);
+	grpsize = sysconf(_SC_NGROUPS_MAX);
 	if (grpsize < 0)
 	    grpsize = NGROUPS_MAX;
 	groups = reallocarray(NULL, grpsize, 4 * sizeof(*groups));
diff --git a/src/sudo.c b/src/sudo.c
index bd2b2c2c2..e3f4837a8 100644
--- a/src/sudo.c
+++ b/src/sudo.c
@@ -437,7 +437,7 @@ get_user_groups(const char *user, struct sudo_cred *cred)
     cred->groups = NULL;
     group_source = sudo_conf_group_source();
     if (group_source != GROUP_SOURCE_DYNAMIC) {
-	int maxgroups = (int)sysconf(_SC_NGROUPS_MAX);
+	long maxgroups = sysconf(_SC_NGROUPS_MAX);
 	if (maxgroups < 0)
 	    maxgroups = NGROUPS_MAX;