jdict

Commit: 220ff78deabb4ea1d28282d991b2a673afe77f23
Parent: 3e52af9ca73c7ac7954c212299ad95c9a1e5c2b4
Author: Randy Palamar
Date:   Sun, 19 Jun 2022 21:03:16 -0600

check syscalls for errors

Diffstat:
M
jdict.c
 | 
9
++++++---

1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/jdict.c b/jdict.c
@@ -78,12 +78,15 @@ parse_term_bank(DictEnt *ents, size_t *nents, const char *tbank, size_t stride)
 	YomiParser p;
 	DictEnt *e;
 
-	/* FIXME: these need to be checked for errors */
-	fd = open(tbank, O_RDONLY);
+	if ((fd = open(tbank, O_RDONLY)) < 0)
+		die("can't open file: %s\n", tbank);
 	flen = lseek(fd, 0, SEEK_END);
 	data = mmap(NULL, flen, PROT_READ, MAP_PRIVATE, fd, 0);
 	close(fd);
 
+	if (data == MAP_FAILED)
+		die("couldn't mmap file: %s\n", tbank);
+
 	/* allocate tokens */
 	ntoks = stride * YOMI_TOKS_PER_ENT + 1;
 	if ((ntoks - 1) / YOMI_TOKS_PER_ENT != stride)
@@ -100,7 +103,7 @@ parse_term_bank(DictEnt *ents, size_t *nents, const char *tbank, size_t stride)
 			ntoks += YOMI_TOK_DELTA;
 			toks = xreallocarray(toks, ntoks, sizeof(YomiTok));
 			break;
-		case YOMI_ERROR_INVAL: /* FALLTRHOUGH */
+		case YOMI_ERROR_INVAL: /* FALLTHROUGH */
 		case YOMI_ERROR_MALFO:
 			munmap(data, flen);
 			free(toks);