Initial CommitHEADmain

4 files changed, 86 insertions, 0 deletions

diff --git a/src/hello.c b/src/hello.c
new file mode 100644
index 0000000..b69ccdf
--- /dev/null
+++ b/src/hello.c
@@ -0,0 +1,20 @@
+#include <stdio.h>
+#include <stdbool.h>
+#include <string.h>
+#include "io.h"
+
+int main(void) {
+    char buffer[BUFSIZ] = {0};
+    if (!ReadFile("version.txt", BUFSIZ, buffer)) {
+        return -1;
+    }
+
+    char *b = strrchr(buffer, '\n');
+    if (b != NULL) {
+        *b = '\0';
+    }
+
+    printf("Hello %s\n", buffer);
+    return 0;
+}
+
diff --git a/src/io.c b/src/io.c
new file mode 100644
index 0000000..78f679a
--- /dev/null
+++ b/src/io.c
@@ -0,0 +1,27 @@
+#include <stdio.h>
+#include <stdbool.h>
+
+bool ReadFile(const char * const path, const size_t n, char * const buffer) {
+    FILE *fp = fopen(path, "r");
+    if (fp == NULL) {
+        perror("ReadFile: fopen");
+        return false;
+    }
+
+    int j = 0;
+    size_t i = 0;
+    for (; i < n - 1; i++) {
+        j = fgetc(fp);
+        if (j == EOF) {
+            break;
+        }
+        buffer[i] = (char)j;
+    }
+
+    buffer[i] = '\0';
+
+    bool ret = (!ferror(fp) && feof(fp));
+    fclose(fp);
+    return ret;
+}
+
diff --git a/src/io.h b/src/io.h
new file mode 100644
index 0000000..7555ee5
--- /dev/null
+++ b/src/io.h
@@ -0,0 +1,10 @@
+#ifndef _IO_H
+#define _IO_H
+
+#include <stddef.h>
+#include <stdbool.h>
+
+bool ReadFile(const char * const path, const size_t n, char * const buffer);
+
+#endif
+
diff --git a/src/makefile b/src/makefile
new file mode 100644
index 0000000..ce91b59
--- /dev/null
+++ b/src/makefile
@@ -0,0 +1,29 @@
+CC         = gcc-14
+CFLAGS     = -Wall \
+             -Werror \
+             -Wextra \
+             -Wpedantic \
+             -std=c17
+SOURCE_DIR = .
+SOURCES    = hello.c io.c
+OBJECT_DIR = object
+OBJECTS    = $(SOURCES:%.c=$(OBJECT_DIR)/%.o)
+TARGET     = hello
+
+all: $(TARGET)
+
+debug: CFLAGS += -g -O0
+debug: $(TARGET)
+
+clean:
+	rm -rf $(TARGET) $(OBJECT_DIR)
+
+$(TARGET): $(OBJECTS) | $(BIN_DIR)
+	$(CC) $(CFLAGS) -o $@ $^
+
+$(OBJECT_DIR)/%.o: %.c | $(OBJECT_DIR)
+	$(CC) $(CFLAGS) -c $^ -o $@
+
+$(OBJECT_DIR) $(BIN_DIR):
+	mkdir $@
+