coreutils

od: Use libokv error reporting

Diffstat

1 files changed, 33 insertions, 31 deletions

diff --git a/src/od.c b/src/od.c
index 4c3067d..5a3da6b 100644
--- a/src/od.c
+++ b/src/od.c
@@ -1,4 +1,4 @@
-// od.c, version 0.8.0
+// od.c, version 0.8.1
 // OMKOV coreutils implementation of POSIX od
 // Copyright (C) 2020, Jakob Wakeling
 // All rights reserved.
@@ -34,20 +34,24 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS WITH THE SOFTWARE.
 */
 
 /*
+	TODO Refactor and cleanup to bring code up to scratch
+	TODO Improve error handling
 	TODO Implement [[+]offset[.][b]] operand as required by POSIX.
 	TODO Fix segfault when using standard input.
 */
 
-#include "error.h"
 #include "optget.h"
 
+#include <error.h>
+
 #include <errno.h>
 #include <limits.h>
 #include <stdbool.h>
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include <string.h>
+
+#define VERSION "0.8.1"
 
 typedef struct {
 	union {
@@ -96,8 +100,6 @@ static const char *const lTABL[] = {
 	"030",  "031",  "032",  "033",  "034",  "035",  "036",  "037",
 };
 
-static const char *ARG0;
-
 static char Aform[] = "%08jo";
 static bool vflag;
 static bool Nflag;
@@ -126,7 +128,7 @@ static inline void lpush(list_t *list, int i);
 static void help(void);
 static void version(void);
 
-int main(int argc, char *argv[]) { ARG0 = argv[0];
+int main(int ac, char *av[]) { A0 = av[0];
 	lop_t lops[] = {
 		{ "help",    ARG_NUL, 256 },
 		{ "version", ARG_NUL, 257 },
@@ -135,23 +137,22 @@ int main(int argc, char *argv[]) { ARG0 = argv[0];
 
 	opt_t opt = OPTGET_INIT; opt.lops = lops; int o, ret = 0;
 	opt.str = "A:bcdj:N:ost:vx"; tlist = linit();
-	while ((o = optget(&opt, argv, 1)) != -1) switch (o) {
+	while ((o = optget(&opt, av, 1)) != -1) switch (o) {
 	case 'A': switch(opt.arg[0]) {
 		case 'd': { aprint = aprint_generic; Aform[4] = 'u'; continue; }
 		case 'o': { aprint = aprint_generic; Aform[4] = 'o'; continue; }
 		case 'x': { aprint = aprint_generic; Aform[4] = 'x'; continue; }
 		case 'n': { aprint = aprint_none; continue; }
-		default: { fprintf(stderr, "%s: invalid address base '%c'\n", argv[0],
-				opt.arg[0]); ret = 1; goto end; }}
+		default: { warn("%c: invalid address base", opt.arg[0]); ret = 1;
+			goto end; }}
 	case 'b': { lpush(&tlist, tb); break; }
 	case 'c': { lpush(&tlist, tl); break; }
 	case 'd': { lpush(&tlist, td); break; }
 	case 'j': { errno = 0; start = bparse(opt.arg); if (errno) {
-		fprintf(stderr, "%s: invalid skip value '%s'\n", argv[0], opt.arg);
-		ret = 1; goto end; } break; }
+		warn("%s: invalid skip value", opt.arg); ret = 1; goto end; } break; }
 	case 'N': { errno = 0; limit = bparse(opt.arg); if (errno) {
-		fprintf(stderr, "%s: invalid limit value '%s'\n", argv[0], opt.arg);
-		ret = 1; goto end; } Nflag = true; break; }
+		warn("%s: invalid limit value", opt.arg); ret = 1; goto end; }
+		Nflag = true; break; }
 	case 'o': { lpush(&tlist, to); break; }
 	case 's': { lpush(&tlist, ts); break; }
 	case 't': { if (tparse(opt.arg)) { goto end; } break; }
@@ -163,8 +164,8 @@ int main(int argc, char *argv[]) { ARG0 = argv[0];
 	}
 
 	if (!tlist.len) { lpush(&tlist, to); }
-	if (opt.ind == argc) { file = stdin; }
-	else { files = argv + opt.ind; file = fnext(); }
+	if (opt.ind == ac) { file = stdin; }
+	else { files = av + opt.ind; file = fnext(); }
 
 	for (size_t i = 0; i < tlist.len; ++i) { int t = tlist.data[i];
 		if (types[t].padm > mpad) { mpad = types[t].padm; }
@@ -179,8 +180,7 @@ int main(int argc, char *argv[]) { ARG0 = argv[0];
 
 	block_t b0, b1; int c; bool btok = false, bskp = false;
 	if (skip(start) == EOF) {
-		fprintf(stderr, "%s: cannot skip past end of input\n", ARG0);
-		ret = 1; goto end;
+		warn("cannot skip past end of input"); ret = 1; goto end;
 	}
 
 	while ((c = bread(btok ? &b0 : &b1)) > 0) {
@@ -257,8 +257,7 @@ static inline int tparse(char *str) { register int c;
 			else if ((b = atow(&p)) == -1) { goto fail; }
 			ssize_t m = p - (s + 1); if (!m) { b = sizeof(int); }
 			if (!(b == 1 || b == 2 || b == 4 || b == 8)) {
-				fprintf(stderr, "%s: no %d-byte integer type\n", ARG0, b);
-				return 1;
+				error(1, "no %d-byte integer type", b);
 			} else { c = *s; s += m; }
 		}
 		else if (*s == 'f') { char *p = s + 1;
@@ -268,14 +267,12 @@ static inline int tparse(char *str) { register int c;
 			else if ((b = atow(&p)) == -1) { goto fail; }
 			ssize_t m = p - (s + 1); if (!m) { b = sizeof(double); }
 			if (!(b == 4 || b == 8 /*|| b == 16*/)) {
-				fprintf(stderr, "%s: no %d-byte float type\n", ARG0, b);
-				return 1;
+				error(1, "no %d-byte float type", b);
 			}
 			else { c = 'f'; s += m; }
 		}
 		else {
-fail:		fprintf(stderr, "%s: invalid type string '%s'\n", ARG0, str);
-			return 1;
+fail:		error(1, "%s: invalid type string", str);
 		}
 
 		for (int i = 0; types[i].type; ++i) {
@@ -350,8 +347,7 @@ static inline FILE *fnext(void) {
 	if (*files) { FILE *f;
 		if (files[0][0] == '-' && files[0][1] == '\0') { f = stdin; }
 		else if (!(f = fopen(*files, "r"))) {
-			fprintf(stderr, "%s: %s: %s\n", ARG0, *files, strerror(errno));
-			return NULL;
+			warn("%s: %s\n", *files, strerror(errno)); return NULL;
 		} ++files; return f;
 	} else { return NULL; }
 }
@@ -390,7 +386,7 @@ static void help(void) {
 }
 
 static void version(void) {
-	puts("OMKOV coreutils od, version 0.8.0");
+	puts("OMKOV coreutils od, version " VERSION);
 	puts("Copyright (C) 2020, Jakob Wakeling");
 	puts("All rights reserved.");
 	puts("OMKOV Permissive Licence (https://www.omkov.net/OLPE)");