fix style using clang-format

Closes: #2

src/.clang-format

@@ -0,0 +1,166 @@
+---
+Language:        Cpp
+# BasedOnStyle:  Mozilla
+AccessModifierOffset: -2
+AlignAfterOpenBracket: Align
+AlignConsecutiveMacros: None
+AlignConsecutiveAssignments: None
+AlignConsecutiveBitFields: None
+AlignConsecutiveDeclarations: None
+AlignEscapedNewlines: Right
+AlignOperands:   Align
+AlignTrailingComments: true
+AllowAllArgumentsOnNextLine: true
+AllowAllConstructorInitializersOnNextLine: true
+AllowAllParametersOfDeclarationOnNextLine: false
+AllowShortEnumsOnASingleLine: true
+AllowShortBlocksOnASingleLine: Never
+AllowShortCaseLabelsOnASingleLine: false
+AllowShortFunctionsOnASingleLine: Inline
+AllowShortLambdasOnASingleLine: All
+AllowShortIfStatementsOnASingleLine: Never
+AllowShortLoopsOnASingleLine: false
+AlwaysBreakAfterDefinitionReturnType: TopLevel
+AlwaysBreakAfterReturnType: TopLevel
+AlwaysBreakBeforeMultilineStrings: false
+AlwaysBreakTemplateDeclarations: Yes
+AttributeMacros:
+  - __capability
+BinPackArguments: false
+BinPackParameters: false
+BraceWrapping:
+  AfterCaseLabel:  false
+  AfterClass:      true
+  AfterControlStatement: Never
+  AfterEnum:       true
+  AfterFunction:   true
+  AfterNamespace:  false
+  AfterObjCDeclaration: false
+  AfterStruct:     true
+  AfterUnion:      true
+  AfterExternBlock: true
+  BeforeCatch:     false
+  BeforeElse:      false
+  BeforeLambdaBody: false
+  BeforeWhile:     false
+  IndentBraces:    false
+  SplitEmptyFunction: true
+  SplitEmptyRecord: false
+  SplitEmptyNamespace: true
+BreakBeforeBinaryOperators: None
+BreakBeforeConceptDeclarations: true
+BreakBeforeBraces: Mozilla
+BreakBeforeInheritanceComma: false
+BreakInheritanceList: BeforeComma
+BreakBeforeTernaryOperators: true
+BreakConstructorInitializersBeforeComma: false
+BreakConstructorInitializers: BeforeComma
+BreakAfterJavaFieldAnnotations: false
+BreakStringLiterals: true
+ColumnLimit:     80
+CommentPragmas:  '^ IWYU pragma:'
+CompactNamespaces: false
+ConstructorInitializerAllOnOneLineOrOnePerLine: false
+ConstructorInitializerIndentWidth: 5
+ContinuationIndentWidth: 5
+Cpp11BracedListStyle: false
+DeriveLineEnding: true
+DerivePointerAlignment: false
+DisableFormat:   false
+EmptyLineBeforeAccessModifier: LogicalBlock
+ExperimentalAutoDetectBinPacking: false
+FixNamespaceComments: false
+ForEachMacros:
+  - foreach
+  - Q_FOREACH
+  - BOOST_FOREACH
+StatementAttributeLikeMacros:
+  - Q_EMIT
+IncludeBlocks:   Preserve
+IncludeCategories:
+  - Regex:           '^"(llvm|llvm-c|clang|clang-c)/'
+    Priority:        2
+    SortPriority:    0
+    CaseSensitive:   false
+  - Regex:           '^(<|"(gtest|gmock|isl|json)/)'
+    Priority:        3
+    SortPriority:    0
+    CaseSensitive:   false
+  - Regex:           '.*'
+    Priority:        1
+    SortPriority:    0
+    CaseSensitive:   false
+IncludeIsMainRegex: '(Test)?$'
+IncludeIsMainSourceRegex: ''
+IndentCaseLabels: true
+IndentCaseBlocks: false
+IndentGotoLabels: true
+IndentPPDirectives: None
+IndentExternBlock: AfterExternBlock
+IndentRequires:  false
+IndentWidth:     5
+IndentWrappedFunctionNames: false
+InsertTrailingCommas: None
+JavaScriptQuotes: Leave
+JavaScriptWrapImports: true
+KeepEmptyLinesAtTheStartOfBlocks: true
+MacroBlockBegin: ''
+MacroBlockEnd:   ''
+MaxEmptyLinesToKeep: 1
+NamespaceIndentation: None
+ObjCBinPackProtocolList: Auto
+ObjCBlockIndentWidth: 5
+ObjCBreakBeforeNestedBlockParam: true
+ObjCSpaceAfterProperty: true
+ObjCSpaceBeforeProtocolList: false
+PenaltyBreakAssignment: 5
+PenaltyBreakBeforeFirstCallParameter: 19
+PenaltyBreakComment: 300
+PenaltyBreakFirstLessLess: 120
+PenaltyBreakString: 1000
+PenaltyBreakTemplateDeclaration: 10
+PenaltyExcessCharacter: 1000000
+PenaltyReturnTypeOnItsOwnLine: 200
+PenaltyIndentedWhitespace: 0
+PointerAlignment: Left
+ReflowComments:  true
+SortIncludes:    true
+SortJavaStaticImport: Before
+SortUsingDeclarations: true
+SpaceAfterCStyleCast: false
+SpaceAfterLogicalNot: false
+SpaceAfterTemplateKeyword: false
+SpaceBeforeAssignmentOperators: true
+SpaceBeforeCaseColon: false
+SpaceBeforeCpp11BracedList: false
+SpaceBeforeCtorInitializerColon: true
+SpaceBeforeInheritanceColon: true
+SpaceBeforeParens: ControlStatements
+SpaceAroundPointerQualifiers: Default
+SpaceBeforeRangeBasedForLoopColon: true
+SpaceInEmptyBlock: false
+SpaceInEmptyParentheses: false
+SpacesBeforeTrailingComments: 1
+SpacesInAngles:  false
+SpacesInConditionalStatement: false
+SpacesInContainerLiterals: true
+SpacesInCStyleCastParentheses: false
+SpacesInParentheses: false
+SpacesInSquareBrackets: false
+SpaceBeforeSquareBrackets: false
+BitFieldColonSpacing: Both
+Standard:        Latest
+StatementMacros:
+  - Q_UNUSED
+  - QT_REQUIRE_VERSION
+TabWidth:        5
+UseCRLF:         false
+UseTab:          Always
+WhitespaceSensitiveMacros:
+  - STRINGIZE
+  - PP_STRINGIZE
+  - BOOST_PP_STRINGIZE
+  - NS_SWIFT_NAME
+  - CF_SWIFT_NAME
+...
+

src/cat.c

@@ -1,43 +1,42 @@
-#include <stdio.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <getopt.h>
 #include <errno.h>
+#include <fcntl.h>
+#include <getopt.h>
+#include <stdio.h>
 #include <string.h>
+#include <unistd.h>
 
 int
-cat(int fd, const char *filename)
+cat(int fd, const char* filename)
 {
 	int c;
 	char buf[8192];
 	if (filename[0] == '-' && filename[1] != 'u')
 		fd = 0;
 
-	if(fd != 0)
+	if (fd != 0)
 		fd = open(filename, O_RDONLY);
 
 	if (fd == -1) {
-		fprintf(stderr,"error opening %s: %s\n",
-			   filename,strerror(errno));
+		fprintf(stderr, "error opening %s: %s\n", filename, strerror(errno));
 		return -1;
 	}
 
-	while((c = read(fd,buf,sizeof(buf))) > 0) {
-		if(c == -1)
+	while ((c = read(fd, buf, sizeof(buf))) > 0) {
+		if (c == -1)
 			return -1;
-		write(1,buf,c);
+		write(1, buf, c);
 	}
 	close(fd);
 	return 0;
 }
 int
-main(int argc, char *argv[])
+main(int argc, char* argv[])
 {
-	getopt(argc,argv,"u");
+	getopt(argc, argv, "u");
 	if (argc == optind)
-		cat(0,"-");
-	for(int i = optind; i<argc;i++)
-		cat(1,argv[i]);
+		cat(0, "-");
+	for (int i = optind; i < argc; i++)
+		cat(1, argv[i]);
 
 	return 0;
 }

src/chgrp.c

@@ -1,41 +1,33 @@
-#include <stdio.h>
-#include <unistd.h>
-#include <grp.h>
 #include <errno.h>
+#include <grp.h>
+#include <stdio.h>
 #include <string.h>
+#include <unistd.h>
 
 int
-main(int argc, char *argv[])
+main(int argc, char* argv[])
 {
-	 int c;
-	 int follow_symlink;
-	 while((c = getopt(argc,argv,"h")) != -1 )
-	 {
-		  switch(c)
-		  {
-		  case 'h': follow_symlink = 1; break;
-		  }
-	 }
-	 if(argc == 1 || argc == 2)
-	 {
-		  fprintf(stderr,"usage: chgrp group file...\n");
-		  return 1;
-	 }
-	 struct group *group_data = getgrnam(argv[optind
-											  ]);
-	 gid_t gid = group_data->gr_gid;
-	 for(int i = optind+1; i<argc; i++)
-	 {
-		  if(follow_symlink)
-		  {
-			   if(lchown(argv[i],gid,getuid()) == -1)
-					fprintf(stderr,"Error: %i = %s\n",errno,strerror(errno));
-		  }
-		  else
-			   if(chown(argv[i],gid,getuid()) == -1)
-			   {
-					fprintf(stderr,"Error: %i = %s\n",errno,strerror(errno));
-			   }
-	 }
-
+	int c;
+	int follow_symlink;
+	while ((c = getopt(argc, argv, "h")) != -1) {
+		switch (c) {
+			case 'h':
+				follow_symlink = 1;
+				break;
+		}
+	}
+	if (argc == 1 || argc == 2) {
+		fprintf(stderr, "usage: chgrp group file...\n");
+		return 1;
+	}
+	struct group* group_data = getgrnam(argv[optind]);
+	gid_t gid = group_data->gr_gid;
+	for (int i = optind + 1; i < argc; i++) {
+		if (follow_symlink) {
+			if (lchown(argv[i], gid, getuid()) == -1)
+				fprintf(stderr, "Error: %i = %s\n", errno, strerror(errno));
+		} else if (chown(argv[i], gid, getuid()) == -1) {
+			fprintf(stderr, "Error: %i = %s\n", errno, strerror(errno));
+		}
+	}
 }

src/chmod.c

@@ -1,22 +1,21 @@
+#include <errno.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include <sys/stat.h>
-#include <errno.h>
 #include <string.h>
+#include <sys/stat.h>
 
 int
-main(int argc, char *argv[])
+main(int argc, char* argv[])
 {
 	mode_t mode = atoi(argv[1]);
-	for(int i = 2; i<argc;i++)
-	{
-		int fd = chmod(argv[i],mode);
-		mu		if(fd == -1)
-			fprintf(stderr,"Error setting %i on %s\n %i = %s",
-				   mode,
-				   argv[i],
-				   errno,
-				   strerror(errno));
+	for (int i = 2; i < argc; i++) {
+		int fd = chmod(argv[i], mode);
+		mu if (fd == -1) fprintf(stderr,
+							"Error setting %i on %s\n %i = %s",
+							mode,
+							argv[i],
+							errno,
+							strerror(errno));
 	}
 
 	return 0;

src/chown.c

@@ -1,28 +1,26 @@
-#include <stdio.h>
-#include <unistd.h>
-#include <sys/types.h>
 #include <pwd.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <unistd.h>
 
 /* TODO: use strtok() to get the group */
 
 int
-main(int argc, char *argv[])
+main(int argc, char* argv[])
 {
-  if(argc == 1)
-    {
-      fprintf(stderr,"No command given\n");
-      return 1;
-    }
-  const char *user = argv[1];
+	if (argc == 1) {
+		fprintf(stderr, "No command given\n");
+		return 1;
+	}
+	const char* user = argv[1];
 
-  struct passwd *data = getpwnam(user);
-  uid_t uid = data->pw_gid;
-  gid_t gid = data->pw_gid; /* Change this with the strtok() thing */
-  
-  for(int i = 2; i<=argc; i++)
-    {
-      chown(argv[i],uid,gid);
-    }
-  
-  return 0;
+	struct passwd* data = getpwnam(user);
+	uid_t uid = data->pw_gid;
+	gid_t gid = data->pw_gid; /* Change this with the strtok() thing */
+
+	for (int i = 2; i <= argc; i++) {
+		chown(argv[i], uid, gid);
+	}
+
+	return 0;
 }

src/chroot.c

@@ -4,12 +4,11 @@
 /* UNTESTED */
 
 int
-main(int argc, char *argv[])
+main(int argc, char* argv[])
 {
-     if(argc == 1)
-     {
-          fprintf(stderr,"Missing operand\n");
-          return 1;
-     }
-     chroot(argv[1]);
+	if (argc == 1) {
+		fprintf(stderr, "Missing operand\n");
+		return 1;
+	}
+	chroot(argv[1]);
 }

src/cp.c

@@ -1,43 +1,45 @@
-#include <stdio.h>
-#include <unistd.h>
-#include <fcntl.h>
 #include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
 #include <string.h>
+#include <unistd.h>
 
 int
-copy(const char *src, const char *dst)
+copy(const char* src, const char* dst)
 {
-  int source = open(src,O_RDONLY);
-  int destination = creat(dst,0644);
+	int source = open(src, O_RDONLY);
+	int destination = creat(dst, 0644);
 
-  if(destination == -1)
-    {
-      fprintf(stderr,"Error opening destination file: %i = %s\n",errno,strerror(errno));
-      return 1;
-    }
-  if(source == -1)
-    {
-      fprintf(stderr,"Error opening source file: %i = %s\n",errno,strerror(errno));
-      return 1;
-    }
-  int lines;
-  char buf[8912];
-  while((lines = read(source,buf,sizeof(buf))) > 0)
-    write(destination,buf,lines);
-  close(destination); close(source);
-  return 0;
+	if (destination == -1) {
+		fprintf(stderr,
+			   "Error opening destination file: %i = %s\n",
+			   errno,
+			   strerror(errno));
+		return 1;
+	}
+	if (source == -1) {
+		fprintf(stderr,
+			   "Error opening source file: %i = %s\n",
+			   errno,
+			   strerror(errno));
+		return 1;
+	}
+	int lines;
+	char buf[8912];
+	while ((lines = read(source, buf, sizeof(buf))) > 0)
+		write(destination, buf, lines);
+	close(destination);
+	close(source);
+	return 0;
 }
 
 int
-main(int argc, char *argv[])
+main(int argc, char* argv[])
 {
-  int fd;
-  if (argc == 1)
-    {
-      fprintf(stderr,"usage: cp source destination\n");
-      return 1;
-    }
-  else
-    fd = copy(argv[1],argv[2]);
-
+	int fd;
+	if (argc == 1) {
+		fprintf(stderr, "usage: cp source destination\n");
+		return 1;
+	} else
+		fd = copy(argv[1], argv[2]);
 }

src/date.c

@@ -1,11 +1,11 @@
 #include <stdio.h>
 #include <stdlib.h>
-#include <unistd.h>
-#include <time.h>
 #include <string.h>
+#include <time.h>
+#include <unistd.h>
 
 int
-main(int argc,char *argv[])
+main(int argc, char* argv[])
 {
 	int c;
 	int u = 0;
@@ -13,28 +13,27 @@ main(int argc,char *argv[])
 	time_t now;
 	now = time(NULL);
 	char FORMAT[256] = "%c";
-	struct tm *timeinfo;
+	struct tm* timeinfo;
 
-	while((c = getopt(argc,argv,"u")) != -1)
-	{
-		switch(c)
-		{
-		case 'u': u = 1; break;
+	while ((c = getopt(argc, argv, "u")) != -1) {
+		switch (c) {
+			case 'u':
+				u = 1;
+				break;
 		}
 	}
 
 	timeinfo = localtime(&now);
 
-	if(u)
+	if (u)
 		timeinfo = gmtime(&now);
 
-	if(argc > optind && argv[optind][0] == '+')
-	{
+	if (argc > optind && argv[optind][0] == '+') {
 		argv[optind]++;
-		strcpy(FORMAT,argv[optind]);
+		strcpy(FORMAT, argv[optind]);
 	}
 
-	strftime(buffer,256,FORMAT,timeinfo);
+	strftime(buffer, 256, FORMAT, timeinfo);
 	puts(buffer);
 	return 0;
 }

src/dirname.c

@@ -1,14 +1,14 @@
-#include <stdio.h>
 #include <libgen.h>
+#include <stdio.h>
 
 int
-main(int argc, char *argv[])
+main(int argc, char* argv[])
 {
-  char *dir = dirname(argv[1]);
-  if(dir == NULL) {
-    fprintf(stderr, "%s", argv[0]);
-    return 1;
-  }
-  printf("%s/\n", dir); /* Trailing slash because POSIX */
-  return 0;
+	char* dir = dirname(argv[1]);
+	if (dir == NULL) {
+		fprintf(stderr, "%s", argv[0]);
+		return 1;
+	}
+	printf("%s/\n", dir); /* Trailing slash because POSIX */
+	return 0;
 }

src/du.c

@@ -1,34 +1,32 @@
+#include <getopt.h>
 #include <stdio.h>
 #include <sys/stat.h>
-#include <getopt.h>
 
 int
-main(int argc, char *argv[])
+main(int argc, char* argv[])
 {
-  int c;
-  int human_readable = 0;
-  struct stat file_data;
+	int c;
+	int human_readable = 0;
+	struct stat file_data;
 
-  while((c = getopt(argc, argv, "h")) != -1)
-    {
-      switch(c)
-        {
-        case 'h': human_readable = 1; break;
-        }
-    }
-  if(argc == optind)
-    {
-      printf("no!\n");
-      return 1;
-    }
-  for(int i = optind; i < argc; i++)
-    {
-      stat(argv[i], &file_data);
-      if(human_readable)
-        printf("%li\t %s",file_data.st_size * 1024, argv[i]);
-      else
-        printf("%li\t %s",file_data.st_size, argv[i]);
-      puts("");
-    }
-  return 0;
+	while ((c = getopt(argc, argv, "h")) != -1) {
+		switch (c) {
+			case 'h':
+				human_readable = 1;
+				break;
+		}
+	}
+	if (argc == optind) {
+		printf("no!\n");
+		return 1;
+	}
+	for (int i = optind; i < argc; i++) {
+		stat(argv[i], &file_data);
+		if (human_readable)
+			printf("%li\t %s", file_data.st_size * 1024, argv[i]);
+		else
+			printf("%li\t %s", file_data.st_size, argv[i]);
+		puts("");
+	}
+	return 0;
 }

src/echo.c

@@ -2,20 +2,21 @@
 #include <string.h>
 
 int
-main(int argc, char *argv[])
+main(int argc, char* argv[])
 {
-  int nflag;
-  if(!strcmp(*++argv, "-n"))
-    {
-      nflag = 1;
-      argv++;
-    }
-    
-  while(*argv)
-    {
-      (void)fputs(*argv, stdout);   /* Print argv */
-      if(*++argv) putchar(' ');     /* If multiple things in argv, print a space between them. */
-    }
-  if(!nflag) putchar('\n');
-  return 0;
+	int nflag;
+	if (!strcmp(*++argv, "-n")) {
+		nflag = 1;
+		argv++;
+	}
+
+	while (*argv) {
+		(void)fputs(*argv, stdout); /* Print argv */
+		if (*++argv)
+			putchar(' '); /* If multiple things in argv, print a space
+						  between them. */
+	}
+	if (!nflag)
+		putchar('\n');
+	return 0;
 }

src/exec.c

@@ -1,15 +1,14 @@
-#include <unistd.h>
 #include <stdio.h>
+#include <unistd.h>
 
 int
-main(int argc, char *argv[])
+main(int argc, char* argv[])
 {
-  if(argc == 1)
-    {
-      fprintf(stderr,"what do you want to do?\n");
-      return 1;
-    }
-  char *const argv2[1] = {argv[2]};
-  execv(argv[1],argv2);
-  return 0;
+	if (argc == 1) {
+		fprintf(stderr, "what do you want to do?\n");
+		return 1;
+	}
+	char* const argv2[1] = { argv[2] };
+	execv(argv[1], argv2);
+	return 0;
 }

src/false.c

@@ -1,5 +1,5 @@
 int
 main(void)
 {
-  return 1;
+	return 1;
 }

src/groups.c

@@ -1,27 +1,26 @@
-#include <stdio.h>
-#include <pwd.h>
-#include <unistd.h>
 #include <grp.h>
+#include <pwd.h>
+#include <stdio.h>
 #include <stdlib.h>
+#include <unistd.h>
 
 int
-main(int argc, char *argv[])
+main(int argc, char* argv[])
 {
-  struct passwd *pwd;
-  if(argc == 2 )
-       pwd = getpwnam(argv[1]);
-  else
-    pwd = getpwuid(getuid());
-  
-  int ngroups = 10;
-  uid_t *groups = malloc(ngroups);
-  getgrouplist(pwd->pw_name,pwd->pw_gid,groups,&ngroups);
-  struct group *gr;
-  for(int i = 0; i <ngroups;i++)
-    {
-      gr = getgrgid(groups[i]);
-      printf("%s ",gr->gr_name);
-    }
-  printf("\n");
-  return 0;
+	struct passwd* pwd;
+	if (argc == 2)
+		pwd = getpwnam(argv[1]);
+	else
+		pwd = getpwuid(getuid());
+
+	int ngroups = 10;
+	uid_t* groups = malloc(ngroups);
+	getgrouplist(pwd->pw_name, pwd->pw_gid, groups, &ngroups);
+	struct group* gr;
+	for (int i = 0; i < ngroups; i++) {
+		gr = getgrgid(groups[i]);
+		printf("%s ", gr->gr_name);
+	}
+	printf("\n");
+	return 0;
 }

src/head.c

@@ -1,52 +1,49 @@
+#include <errno.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include <errno.h>
 #include <string.h>
 
 int
-head(FILE *file, int lines)
+head(FILE* file, int lines)
 {
-	if(file == NULL)
-	{
-		fprintf(stderr,"error opening file: %i = %s\n",errno,strerror(errno));
+	if (file == NULL) {
+		fprintf(
+			stderr, "error opening file: %i = %s\n", errno, strerror(errno));
 		return 1;
 	}
 	int a;
 	int c = 0;
 
-	while((a = fgetc(file)) != EOF)
-	{
-		if(a == '\n')
+	while ((a = fgetc(file)) != EOF) {
+		if (a == '\n')
 			++c;
 
 		putchar(a);
-		if(c == lines)
+		if (c == lines)
 			return lines;
 	}
 	return lines;
-
 }
 
 int
-main(int argc, char *argv[])
+main(int argc, char* argv[])
 {
 	int lines = 10;
-	switch(argc)
-	{
-	case 1:
-		head(stdin,lines);
-		break;
-	case 2:
-		head(fopen(argv[1],"r"),lines);
-		break;
-	case 3:
-		lines = abs(atoi(argv[1]));
-		head(fopen(argv[2],"r"),lines);
-		break;
-	default:
-		lines = atoi(argv[2]);
-		head(fopen(argv[3],"r"),lines);
-		break;
+	switch (argc) {
+		case 1:
+			head(stdin, lines);
+			break;
+		case 2:
+			head(fopen(argv[1], "r"), lines);
+			break;
+		case 3:
+			lines = abs(atoi(argv[1]));
+			head(fopen(argv[2], "r"), lines);
+			break;
+		default:
+			lines = atoi(argv[2]);
+			head(fopen(argv[3], "r"), lines);
+			break;
 	}
 	return 0;
 }

src/hostid.c

@@ -1,11 +1,11 @@
-#include <unistd.h>
 #include <stdio.h>
+#include <unistd.h>
 
 int
 main(void)
 {
-  long id = gethostid();
-  printf("%lx\n",id);
+	long id = gethostid();
+	printf("%lx\n", id);
 
-  return 0;
+	return 0;
 }

src/hostname.c

@@ -1,11 +1,11 @@
-#include <unistd.h>
 #include <stdio.h>
+#include <unistd.h>
 
 int
 main(void)
 {
-  char buf[64];
-  gethostname(buf,64);
-  puts(buf);
-  return 0;
+	char buf[64];
+	gethostname(buf, 64);
+	puts(buf);
+	return 0;
 }

src/id.c

@@ -1,26 +1,27 @@
-#include <stdio.h>
-#include <pwd.h>
-#include <unistd.h>
 #include <getopt.h>
+#include <pwd.h>
+#include <stdio.h>
+#include <unistd.h>
 int
-main(int argc, char *argv[])
+main(int argc, char* argv[])
 {
-  int c = getopt(argc, argv, "Ggnru");
-  struct passwd *user_data = getpwnam(getlogin());
-  switch(c)
-    {
-    case 'g':
-    case 'u':
-      printf("%u\n",user_data->pw_gid);
-      break;
-    case 'n':
-      printf("%s\n",user_data->pw_name);
-      break;
-    default:
-      printf("%u %s\n",user_data->pw_gid,user_data->pw_name); /* I know
-							       * it does not work 
-							       * like this */
-    }
+	int c = getopt(argc, argv, "Ggnru");
+	struct passwd* user_data = getpwnam(getlogin());
+	switch (c) {
+		case 'g':
+		case 'u':
+			printf("%u\n", user_data->pw_gid);
+			break;
+		case 'n':
+			printf("%s\n", user_data->pw_name);
+			break;
+		default:
+			printf("%u %s\n",
+				  user_data->pw_gid,
+				  user_data->pw_name); /* I know
+								    * it does not work
+								    * like this */
+	}
 
-  return 0;
+	return 0;
 }

src/kill.c

@@ -1,55 +1,63 @@
+#include <signal.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include <signal.h>
 
 void
 list_signals(void)
 {
-  puts("1) SIGHUP	 2) SIGINT	 3) SIGQUIT	 4) SIGILL	 5) SIGTRAP");
-  puts("6) SIGABRT	 7) SIGBUS	 8) SIGFPE	 9) SIGKILL	10) SIGUSR1");
-  puts("11) SIGSEGV	12) SIGUSR2	13) SIGPIPE	14) SIGALRM	15) SIGTERM");
-  puts("16) SIGSTKFLT	17) SIGCHLD	18) SIGCONT	19) SIGSTOP	20) SIGTSTP");
-  puts("21) SIGTTIN	22) SIGTTOU	23) SIGURG	24) SIGXCPU	25) SIGXFSZ");
-  puts("26) SIGVTALRM	27) SIGPROF	28) SIGWINCH	29) SIGIO	30) SIGPWR");
-  puts("31) SIGSYS	34) SIGRTMIN	35) SIGRTMIN+1	36) SIGRTMIN+2	37) SIGRTMIN+3");
-  puts("38) SIGRTMIN+4	39) SIGRTMIN+5	40) SIGRTMIN+6	41) SIGRTMIN+7	42) SIGRTMIN+8");
-  puts("43) SIGRTMIN+9	44) SIGRTMIN+10	45) SIGRTMIN+11	46) SIGRTMIN+12	47) SIGRTMIN+13");
-  puts("48) SIGRTMIN+14	49) SIGRTMIN+15	50) SIGRTMAX-14	51) SIGRTMAX-13	52) SIGRTMAX-12");
-  puts("53) SIGRTMAX-11	54) SIGRTMAX-10	55) SIGRTMAX-9	56) SIGRTMAX-8	57) SIGRTMAX-7");
-  puts("58) SIGRTMAX-6	59) SIGRTMAX-5	60) SIGRTMAX-4	61) SIGRTMAX-3	62) SIGRTMAX-2");
-  puts("63) SIGRTMAX-1	64) SIGRTMAX");
+	puts("1) SIGHUP	 2) SIGINT	 3) SIGQUIT	 4) SIGILL	 5) "
+		"SIGTRAP");
+	puts("6) SIGABRT	 7) SIGBUS	 8) SIGFPE	 9) SIGKILL	10) "
+		"SIGUSR1");
+	puts("11) SIGSEGV	12) SIGUSR2	13) SIGPIPE	14) SIGALRM	15) "
+		"SIGTERM");
+	puts("16) SIGSTKFLT	17) SIGCHLD	18) SIGCONT	19) SIGSTOP	20) "
+		"SIGTSTP");
+	puts("21) SIGTTIN	22) SIGTTOU	23) SIGURG	24) SIGXCPU	25) "
+		"SIGXFSZ");
+	puts("26) SIGVTALRM	27) SIGPROF	28) SIGWINCH	29) SIGIO	30) SIGPWR");
+	puts("31) SIGSYS	34) SIGRTMIN	35) SIGRTMIN+1	36) SIGRTMIN+2	37) "
+		"SIGRTMIN+3");
+	puts("38) SIGRTMIN+4	39) SIGRTMIN+5	40) SIGRTMIN+6	41) SIGRTMIN+7	42) "
+		"SIGRTMIN+8");
+	puts("43) SIGRTMIN+9	44) SIGRTMIN+10	45) SIGRTMIN+11	46) "
+		"SIGRTMIN+12	47) SIGRTMIN+13");
+	puts("48) SIGRTMIN+14	49) SIGRTMIN+15	50) SIGRTMAX-14	51) "
+		"SIGRTMAX-13	52) SIGRTMAX-12");
+	puts("53) SIGRTMAX-11	54) SIGRTMAX-10	55) SIGRTMAX-9	56) "
+		"SIGRTMAX-8	57) SIGRTMAX-7");
+	puts("58) SIGRTMAX-6	59) SIGRTMAX-5	60) SIGRTMAX-4	61) SIGRTMAX-3	62) "
+		"SIGRTMAX-2");
+	puts("63) SIGRTMAX-1	64) SIGRTMAX");
 }
 
 int
-main(int argc, char *argv[])
+main(int argc, char* argv[])
 {
 
-  int sig = 0;
-  pid_t pid;
-  if(argc == 1)
-    {
-      fprintf(stderr,"expected something\n");
-      return 1;
-    }
-  if(argv[1][1] == 'l')
-    {
-    list_signals();
-    return 0;
-    }
-  switch(argc)
-    {
-    case 2:
-      sig = 15;
-      pid = atoi(argv[1]);
-      break;
-    case 3:
-      sig = abs(atoi(argv[1]));
-      pid = abs(atoi(argv[2]));
-      break;
-    default:
-      fprintf(stderr, "Specify who to kill\n");
-      return 1;
-    }
-  kill(pid,sig);
-  return 0;
+	int sig = 0;
+	pid_t pid;
+	if (argc == 1) {
+		fprintf(stderr, "expected something\n");
+		return 1;
+	}
+	if (argv[1][1] == 'l') {
+		list_signals();
+		return 0;
+	}
+	switch (argc) {
+		case 2:
+			sig = 15;
+			pid = atoi(argv[1]);
+			break;
+		case 3:
+			sig = abs(atoi(argv[1]));
+			pid = abs(atoi(argv[2]));
+			break;
+		default:
+			fprintf(stderr, "Specify who to kill\n");
+			return 1;
+	}
+	kill(pid, sig);
+	return 0;
 }

src/ln.c

@@ -1,46 +1,48 @@
-#include <stdio.h>
-#include <unistd.h>
 #include <errno.h>
+#include <stdio.h>
 #include <string.h>
+#include <unistd.h>
 
 int
-main(int argc, char *argv[])
+main(int argc, char* argv[])
 {
 
-  if(argc == 1)
-    {
-      printf("Usage: ln oldfile newfile\n");
-      return 1;
-    }
-  int opts, fd, fflag;
-  while((opts = getopt(argc, argv, "sf")) != -1)
-    {
-      if(opts == 'f') fflag=1;
-      switch(opts)
-        {
-        case 's':
-          if(fflag == 1 && (access(argv[3], F_OK) != 1)) {
-            if(remove(argv[3]) == -1)
-              rmdir(argv[3]);
-          }
-          int symstat =  symlink(argv[2],argv[3]);
-          if(symstat == -1)
-            {
-              fprintf(stderr, "Symlink error: %i = %s",errno,strerror(errno));
-              return 1;
-            }
-          break;
-        case '?':
-          printf("-%c: Argument not found", optopt);
-          break;
-        default:
-          fd = link(argv[1],argv[2]);
-          if(fd == -1)
-            {
-              fprintf(stderr,"Error creating link: %i = %s\n",errno,strerror(errno));
-              return 1;
-            }
-          return 0;
-        }
-    }
+	if (argc == 1) {
+		printf("Usage: ln oldfile newfile\n");
+		return 1;
+	}
+	int opts, fd, fflag;
+	while ((opts = getopt(argc, argv, "sf")) != -1) {
+		if (opts == 'f')
+			fflag = 1;
+		switch (opts) {
+			case 's':
+				if (fflag == 1 && (access(argv[3], F_OK) != 1)) {
+					if (remove(argv[3]) == -1)
+						rmdir(argv[3]);
+				}
+				int symstat = symlink(argv[2], argv[3]);
+				if (symstat == -1) {
+					fprintf(stderr,
+						   "Symlink error: %i = %s",
+						   errno,
+						   strerror(errno));
+					return 1;
+				}
+				break;
+			case '?':
+				printf("-%c: Argument not found", optopt);
+				break;
+			default:
+				fd = link(argv[1], argv[2]);
+				if (fd == -1) {
+					fprintf(stderr,
+						   "Error creating link: %i = %s\n",
+						   errno,
+						   strerror(errno));
+					return 1;
+				}
+				return 0;
+		}
+	}
 }

src/logname.c

@@ -4,5 +4,5 @@
 int
 main(void)
 {
-  printf("%s\n",getlogin());
+	printf("%s\n", getlogin());
 }

src/ls.c

@@ -1,87 +1,82 @@
-#include <stdio.h>
 #include <dirent.h>
-#include <getopt.h>
-#include <string.h>
 #include <errno.h>
+#include <getopt.h>
+#include <stdio.h>
+#include <string.h>
 
 int
-recursive_list_dirs(const char *directory)
+recursive_list_dirs(const char* directory)
 {
-	DIR *dir = opendir(directory);
-	if(dir == NULL) {
-		fprintf(stderr,"Error opening directory: %s\n",strerror(errno));
+	DIR* dir = opendir(directory);
+	if (dir == NULL) {
+		fprintf(stderr, "Error opening directory: %s\n", strerror(errno));
 		puts(directory);
 		return -1;
 	}
-	struct dirent *ent;
+	struct dirent* ent;
 
-	
-	while((ent = readdir(dir)) != NULL) {
-		if(ent->d_type == DT_DIR) {
+	while ((ent = readdir(dir)) != NULL) {
+		if (ent->d_type == DT_DIR) {
 			char path[1024];
-			if (!strcmp(ent->d_name, ".")||!strcmp(ent->d_name, ".."))
+			if (!strcmp(ent->d_name, ".") || !strcmp(ent->d_name, ".."))
 				continue;
 			snprintf(path, sizeof(path), "%s/%s", directory, ent->d_name);
-			printf("%s/%s\n",path,ent->d_name);
+			printf("%s/%s\n", path, ent->d_name);
 			recursive_list_dirs(path);
-		}
-		else printf("%s\n",ent->d_name);
+		} else
+			printf("%s\n", ent->d_name);
 	}
 	closedir(dir);
-	
+
 	return 0;
 }
 
 int
-main(int argc, char *argv[])
+main(int argc, char* argv[])
 {
 	int c;
 	int all, show_slash, show_line, recursive;
 	all = show_slash = show_line = recursive = 0;
 
-	while ((c = getopt(argc,argv,"lapR")) != -1)
-	{
-		switch(c)
-		{
-		case 'a':
-			all = 1;
-			break;
-		case 'p':
-			show_slash = 1;
-			break;
-		case 'l':
-			show_line = 1;
-			break;
-		case 'R':
-			recursive = 1;
-			break;
+	while ((c = getopt(argc, argv, "lapR")) != -1) {
+		switch (c) {
+			case 'a':
+				all = 1;
+				break;
+			case 'p':
+				show_slash = 1;
+				break;
+			case 'l':
+				show_line = 1;
+				break;
+			case 'R':
+				recursive = 1;
+				break;
 		}
-
 	}
 	char directory[256];
-	if(!argv[optind])
-		strcpy(directory,"./");
-	else strcpy(directory,argv[optind]); /* Very dirty code, i'll fix it
-								   * later */
-	DIR *dir = opendir(directory);
-	struct dirent *ent;
-	if(recursive)
-	{
+	if (!argv[optind])
+		strcpy(directory, "./");
+	else
+		strcpy(directory, argv[optind]); /* Very dirty code, i'll fix it
+								    * later */
+	DIR* dir = opendir(directory);
+	struct dirent* ent;
+	if (recursive) {
 		recursive_list_dirs(directory);
 		return 0;
 	}
-	if(dir != NULL)
-	{
-		while((ent = readdir(dir)) != NULL)
-		{
-			if(ent->d_name[0] == '.' && !all)
+	if (dir != NULL) {
+		while ((ent = readdir(dir)) != NULL) {
+			if (ent->d_name[0] == '.' && !all)
 				continue;
-			if(!show_line) {
-				if(ent->d_type == DT_DIR && show_slash)
-					printf("%s/ ",ent->d_name);
-				else printf("%s ",ent->d_name);
-			}
-			else printf("%s\n",ent->d_name);
+			if (!show_line) {
+				if (ent->d_type == DT_DIR && show_slash)
+					printf("%s/ ", ent->d_name);
+				else
+					printf("%s ", ent->d_name);
+			} else
+				printf("%s\n", ent->d_name);
 		}
 	}
 	puts("");

src/mkdir.c

@@ -1,45 +1,42 @@
-#include <stdio.h>
-#include <sys/stat.h>
 #include <getopt.h>
+#include <stdio.h>
 #include <string.h>
+#include <sys/stat.h>
 
 int
-main(int argc, char *argv[])
+main(int argc, char* argv[])
 {
-  int c = getopt(argc, argv, "p");
-  if (argc == 1)
-    {
-      fprintf(stderr,"specify path(s) to make\n");
-      return 1;
-    }
-  /*
-  if(c == 'p')
-    {
-      const char tok[2] = "/";
-      char *token;
-      token = strtok(argv[2],tok);
-      char *directories = argv[2];
-      printf("%s\n",directories);
-      while(token != NULL)
-        {
-	  mkdir(token,511);
-	  token = strtok(NULL,"/");
-	  printf("%s",token);
-	  strcat(directories,"/");
-	  printf("%s",directories);
-        }
-      return 0;
-    }
-  */
-  for(int i = 1; i<argc;i++)
-    {
+	int c = getopt(argc, argv, "p");
+	if (argc == 1) {
+		fprintf(stderr, "specify path(s) to make\n");
+		return 1;
+	}
+	/*
+	if(c == 'p')
+	  {
+	    const char tok[2] = "/";
+	    char *token;
+	    token = strtok(argv[2],tok);
+	    char *directories = argv[2];
+	    printf("%s\n",directories);
+	    while(token != NULL)
+		 {
+		mkdir(token,511);
+		token = strtok(NULL,"/");
+		printf("%s",token);
+		strcat(directories,"/");
+		printf("%s",directories);
+		 }
+	    return 0;
+	  }
+	*/
+	for (int i = 1; i < argc; i++) {
 
-      int fd = mkdir(argv[i],420);
-      if(fd == -1)
-        {
-          fprintf(stderr,"Error creating dir %s\n",argv[i]);
-          return 1;
-        }
-    }
-  return 0;
+		int fd = mkdir(argv[i], 420);
+		if (fd == -1) {
+			fprintf(stderr, "Error creating dir %s\n", argv[i]);
+			return 1;
+		}
+	}
+	return 0;
 }

src/mv.c

@@ -1,7 +1,6 @@
+#include <fcntl.h>
 #include <stdio.h>
 #include <unistd.h>
-#include <fcntl.h>
-
 
 /*
 int
@@ -12,13 +11,13 @@ move(const char *src, const char *dst)
 
   if(destination == -1)
     {
-      printf("Error opening destination file\n");
-      return 1;
+	 printf("Error opening destination file\n");
+	 return 1;
     }
   if(source == -1)
     {
-      printf("Error opening source file\n");
-      return 1;
+	 printf("Error opening source file\n");
+	 return 1;
     }
   int lines;
   char buf[8912];
@@ -29,14 +28,11 @@ move(const char *src, const char *dst)
 }
 */
 int
-main(int argc, char *argv[])
+main(int argc, char* argv[])
 {
-  if (argc == 1)
-    {
-      fprintf(stderr,"usage: mv source destination\n");
-      return 1;
-    }
-  else
-    rename(argv[1],argv[2]);
-
+	if (argc == 1) {
+		fprintf(stderr, "usage: mv source destination\n");
+		return 1;
+	} else
+		rename(argv[1], argv[2]);
 }

src/nproc.c

@@ -1,10 +1,10 @@
-#include <sys/sysinfo.h>
 #include <stdio.h>
+#include <sys/sysinfo.h>
 
 int
 main(void)
 {
-  int cores = get_nprocs_conf();
-  printf("%i\n",cores);
-  return 0;
+	int cores = get_nprocs_conf();
+	printf("%i\n", cores);
+	return 0;
 }

src/pwd.c

@@ -1,9 +1,9 @@
-#include <unistd.h>
 #include <stdio.h>
+#include <unistd.h>
 
 int
 main()
 {
-  puts(getcwd(NULL, 0));
-  return 0;
+	puts(getcwd(NULL, 0));
+	return 0;
 }

src/rm.c

@@ -1,23 +1,22 @@
-#include <stdio.h>
 #include <errno.h>
+#include <stdio.h>
 #include <string.h>
 int
-main(int argc, char *argv[])
+main(int argc, char* argv[])
 {
-  if (argc == 1)
-    {
-      printf("Specify files to remove.\n");
-      return 1;
-    }
-  
-  for(int i = 1; i<argc;i++)
-    {
-      int fd = remove(argv[i]);
-      if(fd == -1)
-        {
-          fprintf(stderr,"Error removing file: %i = %s",errno,strerror(errno));
+	if (argc == 1) {
+		printf("Specify files to remove.\n");
+		return 1;
+	}
 
-        }
-    }
-  return 0;
+	for (int i = 1; i < argc; i++) {
+		int fd = remove(argv[i]);
+		if (fd == -1) {
+			fprintf(stderr,
+				   "Error removing file: %i = %s",
+				   errno,
+				   strerror(errno));
+		}
+	}
+	return 0;
 }

src/rmdir.c

@@ -1,17 +1,18 @@
-#include <unistd.h>
-#include <stdio.h>
 #include <errno.h>
+#include <stdio.h>
 #include <string.h>
+#include <unistd.h>
 
 int
-main(int argc, char *argv[]) {
+main(int argc, char* argv[])
+{
 
-	for(int i = 1; i<argc;i++)
-	{
-		if(rmdir(argv[i]))
-		{
-			fprintf(stderr,"rmdir: failed to remove '%s', %s\n",
-				   argv[i],strerror(errno));
+	for (int i = 1; i < argc; i++) {
+		if (rmdir(argv[i])) {
+			fprintf(stderr,
+				   "rmdir: failed to remove '%s', %s\n",
+				   argv[i],
+				   strerror(errno));
 		}
 	}
 	return 0;

src/shred.c

@@ -1,39 +1,38 @@
-#include <stdio.h>
-#include <unistd.h>
+#include <errno.h>
 #include <fcntl.h>
+#include <getopt.h>
+#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <getopt.h>
-#include <errno.h>
 #include <sys/stat.h>
+#include <unistd.h>
 
 int
-fill_with_zeroes(const char *filename)
+fill_with_zeroes(const char* filename)
 {
-  int fd = open(filename,O_WRONLY);
-  if(fd == -1)
-    {
-      printf("Error reading file: %i = %s\n",errno,strerror(errno));
-      return 1;
-    }
-  struct stat stat_struct; /* What name should i use? */
-  stat(filename,&stat_struct);
-  long int bytes_to_write = stat_struct.st_size;
-  char *buf = NULL;
-  
-  buf = malloc(bytes_to_write);
-  for(int i = 0; i < bytes_to_write; i++)
-    write(fd,"\0\0\0\0\0",bytes_to_write + 2048);
-  free(buf);
-  return 0;
+	int fd = open(filename, O_WRONLY);
+	if (fd == -1) {
+		printf("Error reading file: %i = %s\n", errno, strerror(errno));
+		return 1;
+	}
+	struct stat stat_struct; /* What name should i use? */
+	stat(filename, &stat_struct);
+	long int bytes_to_write = stat_struct.st_size;
+	char* buf = NULL;
+
+	buf = malloc(bytes_to_write);
+	for (int i = 0; i < bytes_to_write; i++)
+		write(fd, "\0\0\0\0\0", bytes_to_write + 2048);
+	free(buf);
+	return 0;
 }
 
 int
-main(int argc, char *argv[])
+main(int argc, char* argv[])
 {
-  int c = getopt(argc, argv, "u"); /* TODO: add -f */
-  
-  fill_with_zeroes(argv[1]);
-  if(c == 'u')
-    remove(argv[1]);
+	int c = getopt(argc, argv, "u"); /* TODO: add -f */
+
+	fill_with_zeroes(argv[1]);
+	if (c == 'u')
+		remove(argv[1]);
 }

src/sleep.c

@@ -1,16 +1,15 @@
 #include <stdio.h>
-#include <unistd.h>
 #include <stdlib.h>
+#include <unistd.h>
 
 int
-main(int argc, char *argv[])
+main(int argc, char* argv[])
 {
-  if(argc == 1)
-    {
-      fprintf(stderr,"missing opperand\n");
-      return 1;
-    }
-  usleep(atof(argv[1]) * 1000000);
+	if (argc == 1) {
+		fprintf(stderr, "missing opperand\n");
+		return 1;
+	}
+	usleep(atof(argv[1]) * 1000000);
 
-  return 0;
+	return 0;
 }

src/stat.c

@@ -1,60 +1,60 @@
-#include <stdio.h>
-#include <sys/stat.h>
-#include <string.h>
 #include <errno.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/stat.h>
 #include <time.h>
 
 int
-main(int argc, char **argv)
+main(int argc, char** argv)
 {
 	if (argc == 1) {
-		fprintf(stderr,"usage: stat FILE...\n");
+		fprintf(stderr, "usage: stat FILE...\n");
 		return 1;
 	}
 	char mod_date[64], acc_date[64], creat_date[64];
 	struct stat file_data;
-	for(int i = 1; i <argc;i++)
-	{
-		if(stat(argv[i],&file_data) == -1) {
-			printf("Cannot stat '%s': %s\n",argv[i],strerror(errno));
+	for (int i = 1; i < argc; i++) {
+		if (stat(argv[i], &file_data) == -1) {
+			printf("Cannot stat '%s': %s\n", argv[i], strerror(errno));
 			continue;
 		}
 		/* About file size, location... */
-		printf("File: %s\nSize: %lu\t blocks: %li\t IO Block: %li\nDevice: %lu\t",
+		printf("File: %s\nSize: %lu\t blocks: %li\t IO Block: %li\nDevice: "
+			  "%lu\t",
 			  argv[i],
 			  file_data.st_size,
 			  file_data.st_blocks,
 			  file_data.st_blksize,
 			  file_data.st_dev);
 		/* File permisions
-		 * TODO: Display only the permissions (644) instead of the whole mode (100644)
+		 * TODO: Display only the permissions (644) instead of the whole mode
+		 * (100644)
 		 */
 		printf("Inode: %u\t Links: %lu\nAccess: %o\tUid: %u\tGid:%u\n",
 			  file_data.st_gid,
 			  file_data.st_nlink,
 			  file_data.st_mode,
 			  file_data.st_uid,
-			  file_data.st_gid
-			);
+			  file_data.st_gid);
 		/* Access, creation and modification date */
-		struct tm *timeinfo;
+		struct tm* timeinfo;
 		/* Modification time */
 		timeinfo = localtime(&file_data.st_mtim.tv_sec);
-		strftime(mod_date,64,"%F %H:%M:%S",timeinfo);
+		strftime(mod_date, 64, "%F %H:%M:%S", timeinfo);
 		/* Creation time */
-		
+
 		timeinfo = localtime(&file_data.st_ctim.tv_sec);
-		strftime(creat_date,64,"%F %H:%M:%S",timeinfo);
-	
+		strftime(creat_date, 64, "%F %H:%M:%S", timeinfo);
+
 		/* Access time */
 		timeinfo = localtime(&file_data.st_atim.tv_sec);
-		strftime(acc_date,64,"%F %H:%M:%S",timeinfo);
-		
+		strftime(acc_date, 64, "%F %H:%M:%S", timeinfo);
+
 		printf("Access: %s\nModify: %s\nCreation %s\n",
 			  acc_date,
 			  mod_date,
 			  creat_date);
 	}
-	
+
 	return 0;
 }

src/sync.c

@@ -3,6 +3,6 @@
 int
 main(void)
 {
-  sync();
-  return 0;
+	sync();
+	return 0;
 }

src/tee.c

@@ -1,65 +1,62 @@
-#include <stdio.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <signal.h>
 #include <errno.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <stdio.h>
 #include <string.h>
+#include <unistd.h>
 
 int
 tee(int fd)
 {
-  if(fd == -1)
-    {
-      fprintf(stderr,"%s\n",strerror(errno));
-      return 1;
-    }
-  char buf[8192];
-  int read_bytes = 0;
-  while((read_bytes = read(0,buf,8192)) > 0)
-    {
-      write(fd,buf,read_bytes);
-      if(fd != 1)
-	write(1,buf,read_bytes);
-    }
-  return 0;
+	if (fd == -1) {
+		fprintf(stderr, "%s\n", strerror(errno));
+		return 1;
+	}
+	char buf[8192];
+	int read_bytes = 0;
+	while ((read_bytes = read(0, buf, 8192)) > 0) {
+		write(fd, buf, read_bytes);
+		if (fd != 1)
+			write(1, buf, read_bytes);
+	}
+	return 0;
 }
 
 int
-main(int argc, char *argv[])
+main(int argc, char* argv[])
 {
-  int c;
-  int append = 0;
-  int ignore_signt = 0;
-  int fd = 0;
-  int FLAGS = O_WRONLY|O_CREAT; /* yeah, it will overwrite the thing if it
-			 * can't read what's in the file, thanks
-			 * POSIX! */
-  while((c = getopt(argc, argv,"ai")) != -1)
-    {
-      switch(c)
-        {
-        case 'a': append = 1; break;
-        case 'i': ignore_signt = 1; break;
-        }
-    }
-  if(argc == optind)
-    {
-      if(ignore_signt)
-        signal(SIGINT,SIG_IGN);
-      tee(1);
-    }
-  else
-    {
-      if(argv[argc-1][0] == '-')
-        fd = 1;
-      if(append)
-	FLAGS = O_RDWR|O_APPEND; /* Remember what I said? */
+	int c;
+	int append = 0;
+	int ignore_signt = 0;
+	int fd = 0;
+	int FLAGS = O_WRONLY | O_CREAT; /* yeah, it will overwrite the thing if it
+							   * can't read what's in the file, thanks
+							   * POSIX! */
+	while ((c = getopt(argc, argv, "ai")) != -1) {
+		switch (c) {
+			case 'a':
+				append = 1;
+				break;
+			case 'i':
+				ignore_signt = 1;
+				break;
+		}
+	}
+	if (argc == optind) {
+		if (ignore_signt)
+			signal(SIGINT, SIG_IGN);
+		tee(1);
+	} else {
+		if (argv[argc - 1][0] == '-')
+			fd = 1;
+		if (append)
+			FLAGS = O_RDWR | O_APPEND; /* Remember what I said? */
 
-      fd = open(argv[argc-1],FLAGS);
-      if(ignore_signt)
-        signal(SIGINT,SIG_IGN);
-      if(tee(fd) == 1)
-        return -1;
-    }
-  return 0;
+		fd = open(argv[argc - 1], FLAGS);
+		if (ignore_signt)
+			signal(SIGINT, SIG_IGN);
+		if (tee(fd) == 1)
+			return -1;
+	}
+	return 0;
 }

src/touch.c

@@ -1,26 +1,27 @@
+#include <errno.h>
 #include <fcntl.h>
 #include <stdio.h>
+#include <string.h>
 #include <sys/stat.h>
 #include <unistd.h>
-#include <errno.h>
-#include <string.h>
 
 int
-main(int argc, char *argv[])
+main(int argc, char* argv[])
 {
-  if(argc <=1)
-    {
-      fprintf(stderr,"Give a file\n");
-      return 1;
-    }
+	if (argc <= 1) {
+		fprintf(stderr, "Give a file\n");
+		return 1;
+	}
 
-  int fd = creat(argv[1], 0644);
+	int fd = creat(argv[1], 0644);
 
-  if(fd == -1)
-    {
-      fprintf(stderr,"Error creating file: %i = %s\n",errno,strerror(errno));
-      return 1;
-    }
-  close(fd);
-  return 0;
+	if (fd == -1) {
+		fprintf(stderr,
+			   "Error creating file: %i = %s\n",
+			   errno,
+			   strerror(errno));
+		return 1;
+	}
+	close(fd);
+	return 0;
 }

src/true.c

@@ -1,5 +1,5 @@
 int
 main(void)
 {
-  return 0;
+	return 0;
 }

src/tty.c

@@ -1,9 +1,9 @@
-#include <unistd.h>
 #include <stdio.h>
+#include <unistd.h>
 
 int
 main(void)
 {
-  printf("%s\n",ttyname(1));
-  return 0;
+	printf("%s\n", ttyname(1));
+	return 0;
 }

src/uname.c

@@ -1,10 +1,10 @@
-#include <stdio.h>
-#include <sys/utsname.h>
 #include <getopt.h>
+#include <stdio.h>
 #include <string.h>
+#include <sys/utsname.h>
 
-const char
-*get_operating_system()
+const char*
+get_operating_system()
 {
 #ifdef __gnu_linux__
 	return "GNU/Linux";
@@ -22,7 +22,7 @@ const char
 }
 
 int
-main(int argc, char *argv[])
+main(int argc, char* argv[])
 {
 	int c;
 	int all = 0;
@@ -34,25 +34,34 @@ main(int argc, char *argv[])
 	int nothing = 0;
 	struct utsname kernel_info;
 
-	if(argc == 1)
+	if (argc == 1)
 		nothing = 1;
-	while((c = getopt(argc, argv, "amnrsv")) != -1)
-	{
-		switch(c)
-		{
-		case 'a': all = 1; break;
-		case 'm': machine = 1; break;
-		case 'n': node_name = 1; break;
-		case 'r': kernel_release = 1; break;
-		case 's': kernel_name = 1; break;
-		case 'v': operating_system = 1; break;
+	while ((c = getopt(argc, argv, "amnrsv")) != -1) {
+		switch (c) {
+			case 'a':
+				all = 1;
+				break;
+			case 'm':
+				machine = 1;
+				break;
+			case 'n':
+				node_name = 1;
+				break;
+			case 'r':
+				kernel_release = 1;
+				break;
+			case 's':
+				kernel_name = 1;
+				break;
+			case 'v':
+				operating_system = 1;
+				break;
 		}
 	}
 
 	uname(&kernel_info);
 
-	if(all)
-	{
+	if (all) {
 		printf("%s %s %s %s %s %s\n",
 			  kernel_info.sysname,
 			  kernel_info.nodename,
@@ -60,21 +69,18 @@ main(int argc, char *argv[])
 			  kernel_info.version,
 			  kernel_info.machine,
 			  get_operating_system());
-	}
-	else
-	{
-		if(machine)
-			printf("%s ",kernel_info.machine);
-		if(node_name)
-			printf("%s ",kernel_info.nodename);
-		if(kernel_release)
-			printf("%s ",kernel_info.release);
-		if(kernel_name || nothing)
-			printf("%s ",kernel_info.sysname);
-		if(operating_system)
-			printf("%s",get_operating_system());
+	} else {
+		if (machine)
+			printf("%s ", kernel_info.machine);
+		if (node_name)
+			printf("%s ", kernel_info.nodename);
+		if (kernel_release)
+			printf("%s ", kernel_info.release);
+		if (kernel_name || nothing)
+			printf("%s ", kernel_info.sysname);
+		if (operating_system)
+			printf("%s", get_operating_system());
 		printf("\n");
-
 	}
 	return 0;
 }

src/unlink.c

@@ -1,23 +1,19 @@
-#include <stdio.h>
-#include <unistd.h>
 #include <errno.h>
+#include <stdio.h>
 #include <string.h>
+#include <unistd.h>
 
 int
-main(int argc, char *argv[])
+main(int argc, char* argv[])
 {
-  if(argc == 1)
-    {
-      fprintf(stderr,"What do I unlink?\n");
-      return 1;
-    }
-
-  int fd = unlink(argv[1]);
-  if(fd == -1)
-    {
-      fprintf(stderr,"Error unlinking: %i = %s\n",
-	      errno,strerror(errno));
-    }
-  return 0;
+	if (argc == 1) {
+		fprintf(stderr, "What do I unlink?\n");
+		return 1;
+	}
 
+	int fd = unlink(argv[1]);
+	if (fd == -1) {
+		fprintf(stderr, "Error unlinking: %i = %s\n", errno, strerror(errno));
+	}
+	return 0;
 }

src/wc.c

@@ -1,8 +1,8 @@
-#include <stdio.h>
 #include <ctype.h>
-#include <getopt.h>
-#include <stdlib.h>
 #include <errno.h>
+#include <getopt.h>
+#include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 
 int show_lines, show_words, show_bytes;
@@ -16,31 +16,30 @@ struct wc_values
 	int total_lines;
 	int total_bytes;
 	int total_words;
-	
 };
 
-
 int
-wc(const char *filename, struct wc_values *data)
+wc(const char* filename, struct wc_values* data)
 {
-	FILE *file = fopen(filename,"r");
-	if(file == NULL) {
-		fprintf(stderr,"error opening file %s: %s\n",
-			filename,
-			strerror(errno));
+	FILE* file = fopen(filename, "r");
+	if (file == NULL) {
+		fprintf(stderr,
+			   "error opening file %s: %s\n",
+			   filename,
+			   strerror(errno));
 		return -1;
 	}
 	size_t c;
 	char buf;
 	int newlines, spaces, bytes = 0;
 	newlines = spaces = bytes = 0;
-	while((c = fread(&buf,1,1, file)) > 0) {
-		if(!isascii(buf))
+	while ((c = fread(&buf, 1, 1, file)) > 0) {
+		if (!isascii(buf))
 			buf = toascii(buf);
 		bytes++;
-		if(buf == '\n')
+		if (buf == '\n')
 			newlines++;
-		if(isspace(buf))
+		if (isspace(buf))
 			spaces++;
 	}
 	data->bytes = bytes;
@@ -50,32 +49,29 @@ wc(const char *filename, struct wc_values *data)
 	data->total_bytes += data->bytes;
 	data->total_lines += data->lines;
 	data->total_words += data->words;
-	
+
 	fclose(file);
 	return 0;
 }
 
 void
-print_values(const char *filename, struct wc_values data)
+print_values(const char* filename, struct wc_values data)
 {
-	if(show_bytes && show_lines && show_words)
-		printf("%i %i %i",
-			data.lines,
-			data.words,
-			data.bytes);
-	else	{
-		if(!show_lines)
-			printf("%i ",data.lines);
-		if(!show_words)
-			printf("%i ",data.words);
-		if(!show_bytes)
-			printf("%i ",data.bytes);
+	if (show_bytes && show_lines && show_words)
+		printf("%i %i %i", data.lines, data.words, data.bytes);
+	else {
+		if (!show_lines)
+			printf("%i ", data.lines);
+		if (!show_words)
+			printf("%i ", data.words);
+		if (!show_bytes)
+			printf("%i ", data.bytes);
 	}
-	printf(" %s\n",filename);
+	printf(" %s\n", filename);
 }
 
 int
-main(int argc, char *argv[])
+main(int argc, char* argv[])
 {
 	int c;
 	struct wc_values data;
@@ -83,39 +79,37 @@ main(int argc, char *argv[])
 	int return_value = 0; /* Please let me know a better name */
 	show_lines = show_words = show_bytes = 1;
 	/* Process arguments */
-	while((c = getopt(argc,argv,"lwcm")) > 0){
-		switch(c)	{
-		case 'l':
-			show_lines = 0;
-			break;
-		case 'w':
-			show_words = 0;
-			break;
-		case 'c':
-		case 'm':
-			show_bytes = 0;
-			break;
-
+	while ((c = getopt(argc, argv, "lwcm")) > 0) {
+		switch (c) {
+			case 'l':
+				show_lines = 0;
+				break;
+			case 'w':
+				show_words = 0;
+				break;
+			case 'c':
+			case 'm':
+				show_bytes = 0;
+				break;
 		}
 	}
-	if(optind == argc) {
-		wc("/dev/stdin",&data); /* lol */
-		print_values("stdin",data);
-	}
-	else
-		for(int i = optind; i<argc; i++) {
-			if(argv[i][0] == '-' && argv[i][1] == '\0')
-				return_value = wc("/dev/stdin",&data);
+	if (optind == argc) {
+		wc("/dev/stdin", &data); /* lol */
+		print_values("stdin", data);
+	} else
+		for (int i = optind; i < argc; i++) {
+			if (argv[i][0] == '-' && argv[i][1] == '\0')
+				return_value = wc("/dev/stdin", &data);
 			else
-				return_value = wc(argv[i],&data);
+				return_value = wc(argv[i], &data);
 			if (return_value == 0)
-				print_values(argv[i],data);
+				print_values(argv[i], data);
 		}
-	if(argc > optind+1) 
-	printf("%i %i %i total\n",
-		data.total_lines,
-		data.total_words,
-		data.total_bytes);
+	if (argc > optind + 1)
+		printf("%i %i %i total\n",
+			  data.total_lines,
+			  data.total_words,
+			  data.total_bytes);
 
 	return 0;
 }

src/whoami.c

@@ -1,10 +1,10 @@
-#include <stdio.h>
 #include <pwd.h>
+#include <stdio.h>
 #include <unistd.h>
 
 int
 main(void)
 {
-  struct passwd *user_data = getpwuid(getuid());
-  printf("%s\n",user_data->pw_name);
+	struct passwd* user_data = getpwuid(getuid());
+	printf("%s\n", user_data->pw_name);
 }

src/yes.c

@@ -1,11 +1,13 @@
 #include <stdio.h>
 
 int
-main(int argc, char *argv[])
+main(int argc, char* argv[])
 {
-  if(argc > 1)
-    while(1) puts(argv[1]);
-  else
-    while(1) puts("y");
-  return 0;
+	if (argc > 1)
+		while (1)
+			puts(argv[1]);
+	else
+		while (1)
+			puts("y");
+	return 0;
 }