formatting fix

src/cksum/cksum.c

@@ -1,101 +1,97 @@
-#include<stdint.h>
-#include<stdio.h>
-#include<stdlib.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
 
 #define NAME "cksum (canoutils)"
 #define VERSION "0.0.1"
 #define AUTHOR "cospplredman"
 
-#include "../version_info.h"
 #include "../getopt.h"
+#include "../version_info.h"
 
-static const char usage[] = {
-	"  -v   version information\n"
-};
+static const char usage[] = {"  -v   version information\n"};
 
 static const uint32_t crc32_ = 0x04c11db7;
 
-uint32_t crc32(FILE *file, size_t *octets){
-	uint32_t remainder = 0;
-	uint8_t difference = 0;
-
-	size_t length = 0;
-
-
-	/* calculate crc of file contents */
-	int cur_char;
-	while((cur_char = getc(file)) != EOF){
-		remainder = (remainder << 8) ^ (difference & 0xff) ^ cur_char;
-		difference = 0;
-		for(int i = 31; i > 23; i--){
-			if(remainder & (1 << i)){
-				remainder ^= (1 << i) | (crc32_ >> (32 - i));
-				difference ^= crc32_ << (i - 24);
-			}
-		}
-		length++;
-	}
-
-	*octets = length;
-
-	/* calculate crc of file contents + length of files in bytes */
-	while(length){
-		cur_char = (length & 0xff);
-		length >>= 8;
-
-		remainder = (remainder << 8) ^ (difference & 0xff) ^ cur_char;
-		difference = 0;
-		for(int i = 31; i > 23; i--){
-			if(remainder & (1 << i)){
-				remainder ^= (1 << i) | (crc32_ >> (32 - i));
-				difference ^= crc32_ << (i - 24);
-			}
-		}
-	}
-
-
-	/* work through the remaining 3 bytes  */
-	for(int j = 0; j < 3; j++){
-		remainder = (remainder << 8) ^ (difference & 0xff);
-		difference = 0;
-		for(int i = 31; i > 23; i--){
-			if(remainder & (1 << i)){
-				remainder ^= (1 << i) | (crc32_ >> (32 - i));
-				difference ^= crc32_ << (i - 24);
-			}
-		}
-	}
-
-	return ~((remainder<<8)|(difference&0xff));
-
+uint32_t crc32(FILE *file, size_t *octets) {
+  uint32_t remainder = 0;
+  uint8_t difference = 0;
+
+  size_t length = 0;
+
+  /* calculate crc of file contents */
+  int cur_char;
+  while ((cur_char = getc(file)) != EOF) {
+    remainder = (remainder << 8) ^ (difference & 0xff) ^ cur_char;
+    difference = 0;
+    for (int i = 31; i > 23; i--) {
+      if (remainder & (1 << i)) {
+        remainder ^= (1 << i) | (crc32_ >> (32 - i));
+        difference ^= crc32_ << (i - 24);
+      }
+    }
+    length++;
+  }
+
+  *octets = length;
+
+  /* calculate crc of file contents + length of files in bytes */
+  while (length) {
+    cur_char = (length & 0xff);
+    length >>= 8;
+
+    remainder = (remainder << 8) ^ (difference & 0xff) ^ cur_char;
+    difference = 0;
+    for (int i = 31; i > 23; i--) {
+      if (remainder & (1 << i)) {
+        remainder ^= (1 << i) | (crc32_ >> (32 - i));
+        difference ^= crc32_ << (i - 24);
+      }
+    }
+  }
+
+  /* work through the remaining 3 bytes  */
+  for (int j = 0; j < 3; j++) {
+    remainder = (remainder << 8) ^ (difference & 0xff);
+    difference = 0;
+    for (int i = 31; i > 23; i--) {
+      if (remainder & (1 << i)) {
+        remainder ^= (1 << i) | (crc32_ >> (32 - i));
+        difference ^= crc32_ << (i - 24);
+      }
+    }
+  }
+
+  return ~((remainder << 8) | (difference & 0xff));
 }
 
-int main(int argc, char ** argv) {
-	if(argc<2){
-		printf("%s\n", usage);
-		exit(1);
-	}
-
-	int opt;
-	while((opt = getopt(argc, argv, "v")) != -1){
-		switch(opt){
-			case 'v':
-				print_version();
-				return EXIT_SUCCESS;
-			break;
-		}
-	}
-
-	int index = optind;
-	for(;index < argc; index++){
-		FILE*file=fopen(argv[index],"r");
-
-		if(file==NULL)
-			return EXIT_FAILURE;
-
-		size_t octets;
-		uint32_t crc = crc32(file, &octets);
-
-		printf("%u %lu %s\n", crc, octets, argv[index]);
-	}
+int main(int argc, char **argv) {
+  if (argc < 2) {
+    printf("%s\n", usage);
+    exit(1);
+  }
+
+  int opt;
+  while ((opt = getopt(argc, argv, "v")) != -1) {
+    switch (opt) {
+    case 'v':
+      print_version();
+      return EXIT_SUCCESS;
+      break;
+    }
+  }
+
+  int index = optind;
+  for (; index < argc; index++) {
+    FILE *file = fopen(argv[index], "r");
+
+    if (file == NULL)
+      return EXIT_FAILURE;
+
+    size_t octets;
+    uint32_t crc = crc32(file, &octets);
+    fclose(file);
+
+    printf("%u %lu %s\n", crc, octets, argv[index]);
+  }
 }