diff options
| -rw-r--r-- | Makefile | 18 | ||||
| -rwxr-xr-x | bin/cat | bin | 0 -> 15728 bytes | |||
| -rwxr-xr-x | bin/catplan9 | bin | 0 -> 12888 bytes | |||
| -rwxr-xr-x | bin/cp | bin | 0 -> 13024 bytes | |||
| -rwxr-xr-x | bin/echo | bin | 0 -> 11912 bytes | |||
| -rwxr-xr-x | bin/head | bin | 0 -> 12720 bytes | |||
| -rwxr-xr-x | bin/tac | bin | 0 -> 13224 bytes | |||
| -rwxr-xr-x | bin/tail | bin | 0 -> 13288 bytes | |||
| -rwxr-xr-x | bin/touch | bin | 0 -> 12328 bytes | |||
| -rw-r--r-- | do.txt | 28 | ||||
| -rw-r--r-- | src/cat.c | 45 | ||||
| -rw-r--r-- | src/cp.c | 28 | ||||
| -rw-r--r-- | src/echo.c | 11 | ||||
| -rw-r--r-- | src/head.c | 49 | ||||
| -rw-r--r-- | src/tac.c | 58 | ||||
| -rw-r--r-- | src/tail.c | 59 | ||||
| -rw-r--r-- | src/touch.c | 28 | ||||
| -rw-r--r-- | test | 27 | ||||
| -rw-r--r-- | todo.txt | 2 |
19 files changed, 353 insertions, 0 deletions
diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..ddc169b --- /dev/null +++ b/Makefile @@ -0,0 +1,18 @@ +CC = tcc +CFLAGS = -Wall -g +#CC = gcc +#CFLAGS = -Wall -Wextra +LDFLAGS = +SRC = src +BIN = bin + +SRCS=$(wildcard $(SRC)/*.c) +BINS=$(SRCS:$(SRC)/%.c=%) + +all: $(BINS) + +%: $(SRC)/%.c + $(CC) $(CFLAGS) -o $(BIN)/$@ $< + +clean: + rm -r $(BIN)/* Binary files differdiff --git a/bin/catplan9 b/bin/catplan9 Binary files differBinary files differnew file mode 100755 index 0000000..35d66a3 --- /dev/null +++ b/bin/catplan9 diff --git a/bin/echo b/bin/echo Binary files differnew file mode 100755 index 0000000..1344bcf --- /dev/null +++ b/bin/echo diff --git a/bin/head b/bin/head Binary files differBinary files differnew file mode 100755 index 0000000..08aef70 --- /dev/null +++ b/bin/head diff --git a/bin/tail b/bin/tail Binary files differnew file mode 100755 index 0000000..b5f2a26 --- /dev/null +++ b/bin/tail diff --git a/bin/touch b/bin/touch Binary files differnew file mode 100755 index 0000000..69f0d0b --- /dev/null +++ b/bin/touch @@ -0,0 +1,28 @@ +cp +dd +df +dir +ln +ls +mkdir +mv +rm +rmdir +base32 +base64 +wc +arch +basename +date +du +false +pwd +true +whoami +yes +less +more +ascii +awk +grep +cd diff --git a/src/cat.c b/src/cat.c new file mode 100644 index 0000000..b89cba6 --- /dev/null +++ b/src/cat.c @@ -0,0 +1,45 @@ +#include <stdio.h> +#include <sys/stat.h> +#include <unistd.h> + +#define PROGRAM_NAME "cat" + +struct stat statbuf; + +int main(int argc, char* argv[]) { + FILE *fileptr = NULL; + char buf[8192]; + char ch; + + 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){ + perror("cat"); + return 1; + } + + while ((ch = fgetc(fileptr)) != EOF) { + putchar(ch); + } + + fclose(fileptr); + return 0; +} diff --git a/src/cp.c b/src/cp.c new file mode 100644 index 0000000..573677d --- /dev/null +++ b/src/cp.c @@ -0,0 +1,28 @@ +#include <stdio.h> + +int main(int argc, char* argv[]) { + FILE *input, *output; + char ch; + + if (argv[2] == NULL) { + printf("specify a destination\n"); + return 1; + } + + input = fopen(argv[1], "r"); + output = fopen(argv[2], "a"); + + if (input == NULL || output == NULL) { + printf("failed to open the file dingus\n"); + return 1; + } else { + while ((ch = fgetc(input)) != EOF) { + fputc(ch, output); + } + } + + fclose(input); + fclose(output); + + return 0; +} diff --git a/src/echo.c b/src/echo.c new file mode 100644 index 0000000..ad853f1 --- /dev/null +++ b/src/echo.c @@ -0,0 +1,11 @@ +#include <stdio.h> + +int main(int argc, char *argv[]) { + for (int i=1; i < argc; i++) { + printf("%s ", argv[i]); + } + + printf("\n"); + + return 0; +} diff --git a/src/head.c b/src/head.c new file mode 100644 index 0000000..d669545 --- /dev/null +++ b/src/head.c @@ -0,0 +1,49 @@ +#include <stdio.h> +#include <sys/stat.h> +#include <unistd.h> + +#define PROGRAM_NAME "head" + +struct stat statbuf; + +int main(int argc, char* argv[]) { + FILE *fileptr = NULL; + char buf[8192]; + char ch; + int 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) { + perror("head"); + return 1; + } + + while (((ch = fgetc(fileptr)) != EOF) && (lines < 10)) { + if (ch == '\n') { + lines++; + } + putchar(ch); + } + + fclose(fileptr); + return 0; +} diff --git a/src/tac.c b/src/tac.c new file mode 100644 index 0000000..3f7caf6 --- /dev/null +++ b/src/tac.c @@ -0,0 +1,58 @@ +#include <stdio.h> +#include <sys/stat.h> +#include <unistd.h> + +#define PROGRAM_NAME "tac" + +struct stat statbuf; + +int main(int argc, char* argv[]) { + FILE *fileptr = NULL; + char buf[8192]; + char ch; + int size = 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) { + perror("tac"); + return 1; + } + + while ((ch = fgetc(fileptr)) != EOF) { + size++; + } + + size = size - 2; + rewind(fileptr); + + while (size >= 0) { + fseek(fileptr, size, 0); + ch = fgetc(fileptr); + putchar(ch); + size--; + } + + printf("\n"); + + fclose(fileptr); + return 0; +} 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; +} diff --git a/src/touch.c b/src/touch.c new file mode 100644 index 0000000..6cbde27 --- /dev/null +++ b/src/touch.c @@ -0,0 +1,28 @@ +#include <stdio.h> +#include <sys/time.h> +#include <fcntl.h> +#include <unistd.h> + +#define PROGRAM_NAME "touch" + +int main(int argc, char* argv[]) { + if (argc < 2) { + fprintf(stderr, "%s: missing file operand\n", PROGRAM_NAME); + return 1; + } + + for (int i = 1; i < argc; i++) { + if (utimes(argv[i], NULL) != 0) { + int file = open(argv[i], O_CREAT | O_WRONLY, 0644); + + if (file == -1) { + perror("touch"); + continue; + } + + close(file); + } + } + + return 0; +} @@ -0,0 +1,27 @@ +jajf;daj fa;df +aifa + fjksa]fk +as +fl +'a lf +afjsaif fpjas fposa fhpasihfidhidahpfa +'s +f +saf +sa +fs +af +afsagagda +fjsafak +fg +ad +g +ag +a +g +dagdagagda +g +gda +gda +gadhfsahhhfsh + hSF HF H FH FS H diff --git a/todo.txt b/todo.txt new file mode 100644 index 0000000..a3197d3 --- /dev/null +++ b/todo.txt @@ -0,0 +1,2 @@ +tail + head: +implement variable lines |