commit d183304f9cb7af48482aa6e3c5626a5c7a0aa9de
Author: GeaRSiX <gearsix@tuta.io>
Date: Tue, 8 Jun 2021 10:41:52 +0100
tmp commit; tidyup later
Diffstat:
| A | cat.c | | | 50 | ++++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | catrm | | | 0 | |
| A | catrm.h | | | 18 | ++++++++++++++++++ |
| A | rm.c | | | 44 | ++++++++++++++++++++++++++++++++++++++++++++ |
| A | test | | | 0 | |
| A | test_cat.old | | | 41 | +++++++++++++++++++++++++++++++++++++++++ |
| A | test_rm.c | | | 11 | +++++++++++ |
7 files changed, 164 insertions(+), 0 deletions(-)
diff --git a/cat.c b/cat.c
@@ -0,0 +1,50 @@
+/**
+ * TODO
+**/
+
+#include "catrm.h"
+
+int cat(FILE *dst, FILE *src)
+{
+ int n = -1;
+ errno = 0;
+
+ if (dst == NULL) dst = stdout;
+ if (src == NULL) {
+ errno = EBADF;
+ goto EXIT;
+ } else fseek(src, 0, SEEK_END);
+
+ if (errno != 0) goto EXIT;
+
+ if (ftell(src) < 1)
+ return EXIT_SUCCESS;
+ rewind(src);
+
+ int br = -1, bw = -1;
+ char buf[BUFSIZ];
+ do {
+ if (br > -1 && br != BUFSIZ) {
+ n = -1;
+ errno = EIO;
+ perror("invalid num. bytes read from source file");
+ goto EXIT;
+ }
+ br = fread(buf, sizeof(char), BUFSIZ, src);
+ if (br > 0) {
+ bw = fwrite(buf, sizeof(char), br, dst);
+ if (bw != br) {
+ n = -1;
+ errno = EIO;
+ perror("invalid num. bytes written to destination file");
+ goto EXIT;
+ }
+ n += bw;
+ } else {
+ n = 0;
+ }
+ } while (!feof(src));
+
+EXIT:
+ return n;
+}
diff --git a/catrm b/catrm
Binary files differ.
diff --git a/catrm.h b/catrm.h
@@ -0,0 +1,18 @@
+/**
+ * TODO
+**/
+
+#ifndef CATRM
+#define CATRM
+
+#include <stdio.h>
+#include <errno.h>
+#include <stdlib.h>
+
+#define OPTS_NONE 0x00
+#define OPTS_INTERACTIVE 0x01
+
+int cat(FILE *dst, FILE *src);
+int rm(const char *file, const int opts);
+
+#endif
diff --git a/rm.c b/rm.c
@@ -0,0 +1,44 @@
+/**
+ *
+**/
+
+#include "catrm.h"
+
+int prompt(const char *fpath);
+
+int rm(const char *fpath, const int opts)
+{
+ int n = 0;
+
+ if (opts | OPTS_INTERACTIVE)
+ prompt(fpath);
+
+ return n;
+}
+
+int prompt(const char *fpath)
+{
+ int ret = 0;
+ char *answer = malloc(4);
+ FILE *f = NULL;
+
+ while (ret == 0) {
+ printf("remove file '%s' ([y]es/[n]o/[c]at)? ", fpath);
+ fgets(answer, 4, stdin);
+ if (ferror(stdin)) {
+ perror("failed to read input");
+ break;
+ }
+ switch (answer[0]) {
+ case 'y': ret = 'y'; break;
+ case 'n': ret = 'n'; break;
+ case 'c':
+ f = fopen(fpath, "r");
+ if (f == NULL)
+ perror("failed to open file");
+ if (cat(stdout, f) < 0)
+ perror("cat failed");
+ break;
+ }
+ }
+}
diff --git a/test b/test
diff --git a/test_cat.old b/test_cat.old
@@ -0,0 +1,41 @@
+/**
+ * TODO
+**/
+
+#include "catrm.h"
+
+int main(int argc, char *argv[])
+{
+ FILE *dst = fopen(argv[1], "a");
+ if (dst == NULL) {
+ perror("failed to open dst");
+ }
+
+ while (--argc > 0) {
+/*
+ FILE *src = fopen(argv[argc], "r");
+ if (src == NULL) {
+ perror("failed to open src");
+ return EXIT_FAILURE;
+ }
+
+ if (cat(dst, src) < 0 || cat(NULL, src) < 0) {
+ perror("cat failed");
+ return EXIT_FAILURE;
+ }
+
+ if (fclose(src) == EOF) {
+ perror("failed to close src");
+ return EXIT_FAILURE;
+ }
+*/
+ rm(argv[argc], OPTS_INTERACTIVE);
+ }
+
+ if (fclose(dst) == EOF) {
+ perror("failed to close dst");
+ return EXIT_FAILURE;
+ }
+
+ return EXIT_SUCCESS;
+}
diff --git a/test_rm.c b/test_rm.c
@@ -0,0 +1,11 @@
+/**
+ * TODO
+**/
+
+#include "catrm.h"
+
+int main(int argc, char *argv[])
+{
+ while (--argc > 0)
+ rm(argv[argc], OPTS_INTERACTIVE);
+}
