X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/fe8ab488e9161c46dd9885d58fc52996dc0249ff..c6bf4f310a33a9262d455ea4d3f0630b1255e3fe:/SETUP/replacecontents/replacecontents.c?ds=sidebyside

diff --git a/SETUP/replacecontents/replacecontents.c b/SETUP/replacecontents/replacecontents.c
index 3e72b2d9d..5b14bc3da 100644
--- a/SETUP/replacecontents/replacecontents.c
+++ b/SETUP/replacecontents/replacecontents.c
@@ -37,7 +37,8 @@
 
 void usage(void);
 
-int main(int argc, char * argv[])
+int
+main(int argc, char * argv[])
 {
 	struct stat sb;
 	char *newcontent = NULL;
@@ -55,18 +56,19 @@ int main(int argc, char * argv[])
 
 	dst = argv[1];
 
-	for (i=2; i < argc; i++) {
+	for (i = 2; i < argc; i++) {
 		newcontentlength += strlen(argv[i]) + 1 /* space or newline */;
 	}
 	newcontentlength += 1; /* NUL */
 
 	newcontent = malloc(newcontentlength);
-	if (newcontent == NULL)
+	if (newcontent == NULL) {
 		err(EX_UNAVAILABLE, "malloc() failed");
+	}
 
 	newcontent[0] = '\0';
 
-	for (i=2; i < argc; i++) {
+	for (i = 2; i < argc; i++) {
 		strlcat(newcontent, argv[i], newcontentlength);
 		if (i < argc - 1) {
 			strlcat(newcontent, " ", newcontentlength);
@@ -76,15 +78,18 @@ int main(int argc, char * argv[])
 	}
 
 	dstfd = open(dst, O_RDWR | O_CREAT | O_APPEND, DEFFILEMODE);
-	if (dstfd < 0)
+	if (dstfd < 0) {
 		err(EX_NOINPUT, "open(%s)", dst);
+	}
 
 	ret = fstat(dstfd, &sb);
-	if (ret < 0)
+	if (ret < 0) {
 		err(EX_NOINPUT, "fstat(%s)", dst);
+	}
 
-	if (!S_ISREG(sb.st_mode))
+	if (!S_ISREG(sb.st_mode)) {
 		err(EX_USAGE, "%s is not a regular file", dst);
+	}
 
 	if (sb.st_size != newcontentlength) {
 		/* obvious new content must be different than old */
@@ -92,46 +97,53 @@ int main(int argc, char * argv[])
 	}
 
 	oldcontent = malloc(newcontentlength);
-	if (oldcontent == NULL)
+	if (oldcontent == NULL) {
 		err(EX_UNAVAILABLE, "malloc(%lu) failed", newcontentlength);
+	}
 
 	readsize = read(dstfd, oldcontent, newcontentlength);
-	if (readsize == -1)
+	if (readsize == -1) {
 		err(EX_UNAVAILABLE, "read() failed");
-	else if (readsize != newcontentlength)
+	} else if (readsize != newcontentlength) {
 		errx(EX_UNAVAILABLE, "short read of file");
+	}
 
 	if (0 == memcmp(oldcontent, newcontent, newcontentlength)) {
 		/* binary comparison succeeded, just exit */
 		free(oldcontent);
 		ret = close(dstfd);
-		if (ret < 0)
+		if (ret < 0) {
 			err(EX_UNAVAILABLE, "close() failed");
+		}
 
 		exit(0);
 	}
 
 replace:
 	ret = ftruncate(dstfd, 0);
-	if (ret < 0)
+	if (ret < 0) {
 		err(EX_UNAVAILABLE, "ftruncate() failed");
+	}
 
 	writesize = write(dstfd, newcontent, newcontentlength);
-	if (writesize == -1)
+	if (writesize == -1) {
 		err(EX_UNAVAILABLE, "write() failed");
-	else if (writesize != newcontentlength)
+	} else if (writesize != newcontentlength) {
 		errx(EX_UNAVAILABLE, "short write of file");
+	}
 
 	ret = close(dstfd);
-	if (ret < 0)
+	if (ret < 0) {
 		err(EX_NOINPUT, "close(dst)");
+	}
 
 	return 0;
 }
 
-void usage(void)
+void
+usage(void)
 {
 	fprintf(stderr, "Usage: %s <dst> <new> <contents> <...>\n",
-			getprogname());
+	    getprogname());
 	exit(EX_USAGE);
 }