Add (unsigned char) cast to ctype macros

ftell->ftello, fseek->fseeko
File 'newsize' type int->off_t
Add visible (long) cast to fsize() when it called to small one message file and
result is assigned to long.

1 files changed, 6 insertions, 6 deletions

diff --git a/usr.bin/mail/head.c b/usr.bin/mail/head.c
index 806ab6d..61f43da 100644
--- a/usr.bin/mail/head.c
+++ b/usr.bin/mail/head.c
@@ -204,11 +204,11 @@ cmatch(cp, tp)
 	while (*cp != '\0' && *tp != '\0')
 		switch (*tp++) {
 		case 'a':
-			if (!islower(*cp++))
+			if (!islower((unsigned char)*cp++))
 				return (0);
 			break;
 		case 'A':
-			if (!isupper(*cp++))
+			if (!isupper((unsigned char)*cp++))
 				return (0);
 			break;
 		case ' ':
@@ -216,20 +216,20 @@ cmatch(cp, tp)
 				return (0);
 			break;
 		case '0':
-			if (!isdigit(*cp++))
+			if (!isdigit((unsigned char)*cp++))
 				return (0);
 			break;
 		case 'O':
-			if (*cp != ' ' && !isdigit(*cp))
+			if (*cp != ' ' && !isdigit((unsigned char)*cp))
 				return (0);
 			cp++;
 			break;
 		case 'p':
-			if (!ispunct(*cp++))
+			if (!ispunct((unsigned char)*cp++))
 				return (0);
 			break;
 		case 'P':
-			if (*cp != ' ' && !ispunct(*cp))
+			if (*cp != ' ' && !ispunct((unsigned char)*cp))
 				return (0);
 			cp++;
 			break;