core/*: Return errprint.

Signed-off-by: Ferass El Hafidi <vitali64pmemail@protonmail.com>

13 files changed, 29 insertions, 13 deletions

diff --git a/core/chmod.c b/core/chmod.c
index 8fe0618..b6b51fb 100644
--- a/core/chmod.c
+++ b/core/chmod.c
@@ -4,8 +4,10 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <errno.h>
 
 #define REQ_PRINT_USAGE /* Require print_usage() from ../common/common.h */
+#define REQ_ERRPRINT /* Require errprint() from ../common/common.h */
 #define DESCRIPTION "Change file modes."
 #define OPERANDS    "mode file"
 #include "../common/common.h"
@@ -86,5 +88,5 @@ int main(int argc, char *const argv[]) {
 	}
 
 	chmod(argv[1], owner_modes | group_modes | other_modes);
-	return 0;
+	return errprint(argv[0], "chmod()", errno);
 }
diff --git a/core/date.c b/core/date.c
index 3ea3f92..a5c1469 100644
--- a/core/date.c
+++ b/core/date.c
@@ -1,6 +1,10 @@
 /* SPDX-License-Identifier: BSD-3-Clause */
 #include <time.h>
 #include <stdio.h>
+#include <errno.h>
+
+#define REQ_ERRPRINT
+#include "../common/common.h"
 
 int main(int argc, char *argv[]) {
 	time_t epoch = time(NULL);
@@ -16,5 +20,5 @@ int main(int argc, char *argv[]) {
 	}
 	strftime(date_s, 31, format, date);
 	printf("%s\n", date_s);
-	return 0;
+	return errprint(argv[0], NULL, errno);
 }
diff --git a/core/dirname.c b/core/dirname.c
index 3810f07..b4ff098 100644
--- a/core/dirname.c
+++ b/core/dirname.c
@@ -4,8 +4,10 @@
 #include <stdlib.h>
 #include <string.h>
 #include <libgen.h>
+#include <errno.h>
 
 #define REQ_PRINT_USAGE /* Require print_usage() from ../common/common.h */
+#define REQ_ERRPRINT /* Require errprint() from ../common/common.h */
 #define DESCRIPTION "Return directory portion of <string>."
 #define OPERANDS    "string"
 #include "../common/common.h"
@@ -20,5 +22,5 @@ int main(int argc, char *argv[]) {
 	dirnamestr = dirname(argv[1]);
 
 	printf("%s\n", dirnamestr);
-	return 0;
+	return errprint(argv[0], NULL, errno);
 }
diff --git a/core/echo.c b/core/echo.c
index e61c21d..fe5642e 100644
--- a/core/echo.c
+++ b/core/echo.c
@@ -1,6 +1,10 @@
 /* SPDX-License-Identifier: BSD-3-Clause */
 #include <unistd.h>
 #include <stdio.h>
+#include <errno.h>
+
+#define REQ_ERRPRINT
+#include "../common/common.h"
 
 int main(int argc, char *const argv[]) {
 	int i = 1;
@@ -9,5 +13,5 @@ int main(int argc, char *const argv[]) {
 		printf("%s ", argv[i]);
 	}
 	printf("\n");
-	return 0;
+	return errprint(argv[0], NULL, errno);
 }
diff --git a/core/ed.c b/core/ed.c
index a5e27f4..36cf24e 100644
--- a/core/ed.c
+++ b/core/ed.c
@@ -97,7 +97,7 @@ int main(int argc, char *argv[]) {
 				continue;	
 			case 'q':
 				if (fildes) close(fildes);
-				return 0;
+				return errprint(argv0, NULL, errno);
 			case 'H': /* Help mode */
 				if (i < 0) {
 					print_error((error = "unexpected address"), help_mode);
diff --git a/core/head.c b/core/head.c
index 1a49819..1b0d87b 100644
--- a/core/head.c
+++ b/core/head.c
@@ -44,5 +44,5 @@ int main(int argc, char *const argv[]) {
 		if (file != stdin) fclose(file);
 		if (argc == 0) return 0; /* TODO: Remove this stupid hack. */
 	}
-	return 0;
+	return errprint(argv0, NULL, errno);
 }
diff --git a/core/more.c b/core/more.c
index ff25abe..462ab10 100644
--- a/core/more.c
+++ b/core/more.c
@@ -82,5 +82,5 @@ int main(int argc, char *const argv[]) {
 				break;
 		}
 	}
-	return 0;
+	return errprint(argv0, NULL, errno);
 }
diff --git a/core/printf.c b/core/printf.c
index c830b1d..b0c0d77 100644
--- a/core/printf.c
+++ b/core/printf.c
@@ -1,8 +1,10 @@
 /* SPDX-License-Identifier: BSD-3-Clause */
 #include <unistd.h>
 #include <stdio.h>
+#include <errno.h>
 
 #define REQ_PRINT_USAGE /* Require print_usage() from ../common/common.h */
+#define REQ_ERRPRINT /* Require print_usage() from ../common/common.h */
 #define DESCRIPTION "Write formatted strings to standard output."
 #define OPERANDS    "format [string]"
 #include "../common/common.h"
@@ -13,5 +15,5 @@ int main(int argc, char *const argv[]) {
 		return 1;
 	}
 	printf(argv[1], argv[2] ? argv[2] : "");
-	return 0;
+	return errprint(argv[0], NULL, errno);
 }
diff --git a/core/sleep.c b/core/sleep.c
index abe9f68..e331738 100644
--- a/core/sleep.c
+++ b/core/sleep.c
@@ -2,8 +2,10 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
+#include <errno.h>
 
 #define REQ_PRINT_USAGE /* Require print_usage() from ../common/common.h */
+#define REQ_ERRPRINT /* Require errprint() from ../common/common.h */
 #define DESCRIPTION "Suspend execution for an interval."
 #define OPERANDS    "time"
 #include "../common/common.h"
@@ -24,5 +26,5 @@ int main(int argc, char *argv[]) {
 		return 1;
 	}
 
-	return 0;
+	return errprint(argv[0], NULL, errno);
 }
diff --git a/core/tail.c b/core/tail.c
index 68257a3..38694e6 100644
--- a/core/tail.c
+++ b/core/tail.c
@@ -52,5 +52,5 @@ int main(int argc, char *const argv[]) {
 		}
 	}
 
-	return 0;
+	return errprint(argv0, NULL, errno);
 }
diff --git a/core/touch.c b/core/touch.c
index 625a321..a80efe8 100644
--- a/core/touch.c
+++ b/core/touch.c
@@ -78,5 +78,5 @@ int main(int argc, char *argv[]) {
 			utimensat(AT_FDCWD, argv[i], times, 0);
 		else if (errno != ENOENT) return errprint(argv0, argv[i], errno);
 	}
-	return 0;
+	return errprint(argv0, NULL, errno);
 }
diff --git a/core/tty.c b/core/tty.c
index 2e663e1..6b85e2f 100644
--- a/core/tty.c
+++ b/core/tty.c
@@ -17,5 +17,5 @@ int main(int, char *argv[]) {
 		return 1;
 	} else if (errno) return errprint(argv[0], NULL, errno);
 	printf("%s\n", terminalname);
-	return 0;
+	return errprint(argv[0], NULL, errno);
 }
diff --git a/core/uname.c b/core/uname.c
index 2010821..92e9a23 100644
--- a/core/uname.c
+++ b/core/uname.c
@@ -41,5 +41,5 @@ int main(int argc, char *const argv[]) {
 	if (param['m']) printf("%s", name.machine);
 	if (argc == 0)  printf("%s ", name.sysname);
 	printf("\n");
-	return 0;
+	return errprint(argv0, NULL, errno);
 }