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-rw-r--r--src/tail.c59
1 files changed, 59 insertions, 0 deletions
diff --git a/src/tail.c b/src/tail.c
new file mode 100644
index 0000000..e34b90f
--- /dev/null
+++ b/src/tail.c
@@ -0,0 +1,59 @@
+#include <stdio.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#define PROGRAM_NAME "tail"
+
+struct stat statbuf;
+
+int main(int argc, char* argv[]) {
+ FILE *fileptr = NULL;
+ char buf[8192];
+ char ch;
+ int size = 0, lines = 0;
+
+ if (argc < 2) {
+ while (fgets(buf, sizeof(buf), stdin) != NULL) {
+ printf("%s", buf);
+ }
+
+ return 0;
+ }
+
+ if (access(argv[1], F_OK) != 0) {
+ printf("%s: %s: No such file or directory.\n", PROGRAM_NAME, argv[1]);
+ return 1;
+ }
+
+ if (stat(argv[1], &statbuf) == 0 && S_ISDIR(statbuf.st_mode)) {
+ printf("%s: %s is a directory.\n", PROGRAM_NAME, argv[1]);
+ return 1;
+ }
+
+ fileptr = fopen(argv[1], "r");
+
+ if (fileptr == NULL) {
+ printf("ermmmm can't open this\n");
+ return 1;
+ }
+
+ while ((ch = fgetc(fileptr)) != EOF) {
+ size++;
+ }
+
+ size = size - 2;
+ rewind(fileptr);
+
+ while (size >= 0 && lines < 10) {
+ fseek(fileptr, size, 0);
+ ch = fgetc(fileptr);
+ if (ch == '\n') {
+ lines++;
+ }
+ putchar(ch);
+ size--;
+ }
+
+ fclose(fileptr);
+ return 0;
+}