Command line argument can now be a defined error code (e.g., EPERM)

instead of an error number.

Added Linux specific error codes

errno/errno.c

@@ -6,12 +6,6 @@
 
 char *cmnd;
 
-static void usage(void) {
-    fprintf(stderr, "Usage: %s errno ...\n", cmnd);
-    exit(1);
-}
-
-
 int main(int argc, char **argv) {
     int i;
 
@@ -26,18 +20,37 @@ int main(int argc, char **argv) {
 	}
     } else {
 	for (i = 1; i < argc; i++) {
-	    int e = strtoul(argv[i], NULL, 0);
-	    char *d = "(unknown)";
-	    int j;
+	    char *p;
+	    int e = strtoul(argv[i], &p, 0);
 
-	    for (j = 0; j < wke_nr; j++) {
-		if (wke[j].number == e) {
-		    d = wke[j].define;
-		    break;
+	    if (*p) {
+		/* This is not a number, so we assume it is a define */
+		char *d = argv[i];
+		int j;
+
+		for (j = 0; j < wke_nr; j++) {
+		    if (strcmp(wke[j].define, d) == 0) {
+			e = wke[j].number;
+			printf("%d\t%s\t%s\n", e, d, strerror(e));
+			break;
+		    }
 		}
+
+	    } else {
+		/* it is a number */
+		char *d = "(unknown)";
+		int j;
+
+		for (j = 0; j < wke_nr; j++) {
+		    if (wke[j].number == e) {
+			d = wke[j].define;
+			break;
+		    }
+		}
+
+		printf("%d\t%s\t%s\n", e, d, strerror(e));
 	    }
 
-	    printf("%d\t%s\t%s\n", e, d, strerror(e));
 	}
     }
     return 0;

errno/errno.list

@@ -6,9 +6,15 @@ EADV
 EAFNOSUPPORT
 EAGAIN
 EALREADY
+EBADE
 EBADF
+EBADFD
 EBADMSG
+EBADR
+EBADRQC
+EBADSLT
 EBADVER
+EBFONT
 EBUSY
 ECANCELED
 ECHILD
@@ -19,6 +25,7 @@ ECONNABORTED
 ECONNREFUSED
 ECONNRESET
 EDEADLK
+EDEADLOCK
 EDESTADDRREQ
 EDOM
 EDOTDOT
@@ -36,21 +43,30 @@ EINVAL
 EIO
 EISCONN
 EISDIR
+EISNAM
 EL2HLT
 EL2NSYNC
 EL3HLT
 EL3RST
+ELIBACC
+ELIBBAD
+ELIBEXEC
+ELIBMAX
+ELIBSCN
 ELNRNG
 ELOOP
+EMEDIUMTYPE
 EMFILE
 EMLINK
 EMSGSIZE
 EMULTIHOP
 ENAMETOOLONG
+ENAVAIL
 ENETDOWN
 ENETRESET
 ENETUNREACH
 ENFILE
+ENOANO
 ENOBUFS
 ENOCSI
 ENODATA
@@ -61,6 +77,7 @@ ENOLCK
 ENOLINK
 ENOLOAD
 ENOMATCH
+ENOMEDIUM
 ENOMEM
 ENOMSG
 ENONET
@@ -76,9 +93,11 @@ ENOTBLK
 ENOTCONN
 ENOTDIR
 ENOTEMPTY
+ENOTNAM
 ENOTSOCK
 ENOTSUP
 ENOTTY
+ENOTUNIQ
 ENOUNLD
 ENOUNREG
 ENXIO
@@ -93,8 +112,11 @@ EPROTOTYPE
 ERANGE
 EREFUSED
 ERELOC
+EREMCHG
 EREMOTE
+EREMOTEIO
 EREMOTERELEASE
+ERESTART
 EROFS
 ESHUTDOWN
 ESOCKTNOSUPPORT
@@ -102,11 +124,14 @@ ESPIPE
 ESRCH
 ESRMNT
 ESTALE
+ESTRPIPE
 ETIME
 ETIMEDOUT
 ETOOMANYREFS
 ETXTBSY
+EUCLEAN
 EUNATCH
 EUSERS
 EWOULDBLOCK
 EXDEV
+EXFULL