TP 12 exo2: Basic file manipulations

Signed-off-by: Jérôme Benoit <jerome.benoit@piment-noir.org>

diff --git a/TP_12/exo2/Makefile b/TP_12/exo2/Makefile
new file mode 100644 (file)
index 0000000..959f299
--- /dev/null
+++ b/TP_12/exo2/Makefile
@@ -0,0 +1,79 @@
+# Sample Makefile to build simple project.
+#
+# This Makefile expect all source files (.c) to be at the same level, in the
+# current working directory.
+#
+# It will automatically generate dependencies, compile all files, and produce a
+# binary using the provided name.
+#
+# Set BINARY_NAME to the name of the binary file to build.
+# Set BUILD_TYPE to either debug or release
+#
+# Automatic dependencies code from:
+# http://make.mad-scientist.net/papers/advanced-auto-dependency-generation/#tldr
+BINARY_NAME=exo2
+BUILD_TYPE=debug
+
+# ====================================
+# DO NOT CHANGE STUFF BEYOND THIS LINE
+# ====================================
+
+all: $(BINARY_NAME)
+
+CC=gcc
+LD=gcc
+
+WARN_FLAGS = -Wall -Wextra
+STD_FLAG = -std=c11
+
+ifeq ($(BUILD_TYPE),debug)
+BUILDDIR := .build/debug
+DEBUG_FLAG = -g
+STRIP_FLAG =
+OPTI_FLAG = -O0
+else
+BUILDDIR := .build/release
+DEBUG_FLAG =
+STRIP_FLAG = -s
+OPTIFLAG = -O3
+endif
+
+CFLAGS := $(CFLAGS) $(WARN_FLAGS) $(STD_FLAG) $(OPTI_FLAG) $(DEBUG_FLAG)
+LDFLAGS := $(LDFLAGS) $(STRIP_FLAG)
+
+OBJDIR := $(BUILDDIR)/objs
+$(shell mkdir -p $(OBJDIR))
+
+SRCS=$(wildcard *.c)
+OBJS=$(patsubst %.c,$(OBJDIR)/%.o,$(SRCS))
+
+DEPDIR := $(BUILDDIR)/deps
+$(shell mkdir -p $(DEPDIR))
+DEPFLAGS = -MT $@ -MMD -MP -MF $(DEPDIR)/$*.Td
+POSTCOMPILE = mv -f $(DEPDIR)/$*.Td $(DEPDIR)/$*.d
+
+$(BINARY_NAME): $(OBJS)
+       @echo "[LD ] $@"
+       @$(LD) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@
+
+$(OBJDIR)/%.o: %.c $(DEPDIR)/%.d
+       @echo "[C  ] $*"
+       @$(CC) $(DEPFLAGS) $(CFLAGS) -c $< -o $@
+       @$(POSTCOMPILE)
+
+$(DEPDIR)/%.d: ;
+
+.PRECIOUS: $(DEPDIR)/%.d
+
+include $(wildcard $(patsubst %,$(DEPDIR)/%.d,$(basename $(SRCS))))
+
+clean:
+       @echo "[CLN]"
+       -@rm -r $(BUILDDIR)
+       -@rm $(BINARY_NAME)
+
+disassemble: $(BINARY_NAME)
+       objdump -d $< | less
+
+symbols: $(BINARY_NAME)
+       objdump -t $< | sort | less

diff --git a/TP_12/exo2/exo2.c b/TP_12/exo2/exo2.c
new file mode 100644 (file)
index 0000000..199d299
--- /dev/null
+++ b/TP_12/exo2/exo2.c
@@ -0,0 +1,30 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main() {
+    char ch;
+    char* fname;
+    FILE* fp;
+
+    printf("Enter the name of the file you wish to see\n");
+    int prt = scanf("%s", fname);
+    /* if (prt != 0) {
+        perror("Error entering the file name.\n");
+        exit(EXIT_FAILURE);
+    } */
+
+    fp = fopen(fname, "r"); /* read mode */
+    if (fp == NULL) {
+        perror("Error while opening the file.\n");
+        exit(EXIT_FAILURE);
+    }
+
+    printf("The content of %s file is :\n", fname);
+
+    while((ch = fgetc(fp)) != EOF)
+         printf("%c", ch);
+
+    fclose(fp);
+
+    return EXIT_SUCCESS;
+}

diff --git a/TP_12/exo2/test_file b/TP_12/exo2/test_file
new file mode 100644 (file)
index 0000000..341dcec
--- /dev/null
+++ b/TP_12/exo2/test_file
@@ -0,0 +1,3 @@
+Bonjour,
+
+Je suis un fichier texte de test, ouvrez moi, demonter moi.