From 690b65c63b1da666ea4c3c38a80abce8f1045449 Mon Sep 17 00:00:00 2001 From: Robert Pengelly Date: Thu, 20 Mar 2025 12:06:31 +0000 Subject: [PATCH] Initial commit --- LICENSE | 24 ++++++++ Makefile.pdw | 23 +++++++ Makefile.w32 | 21 +++++++ README.md | 14 +++++ lib.c | 156 +++++++++++++++++++++++++++++++++++++++++++++++ lib.h | 13 ++++ report.c | 149 +++++++++++++++++++++++++++++++++++++++++++++ report.h | 25 ++++++++ rm.c | 166 +++++++++++++++++++++++++++++++++++++++++++++++++++ rm.h | 21 +++++++ 10 files changed, 612 insertions(+) create mode 100644 LICENSE create mode 100644 Makefile.pdw create mode 100644 Makefile.w32 create mode 100644 README.md create mode 100644 lib.c create mode 100644 lib.h create mode 100644 report.c create mode 100644 report.h create mode 100644 rm.c create mode 100644 rm.h diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..fdddb29 --- /dev/null +++ b/LICENSE @@ -0,0 +1,24 @@ +This is free and unencumbered software released into the public domain. + +Anyone is free to copy, modify, publish, use, compile, sell, or +distribute this software, either in source code form or as a compiled +binary, for any purpose, commercial or non-commercial, and by any +means. + +In jurisdictions that recognize copyright laws, the author or authors +of this software dedicate any and all copyright interest in the +software to the public domain. We make this dedication for the benefit +of the public at large and to the detriment of our heirs and +successors. We intend this dedication to be an overt act of +relinquishment in perpetuity of all present and future rights to this +software under copyright law. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR +OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, +ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR +OTHER DEALINGS IN THE SOFTWARE. + +For more information, please refer to diff --git a/Makefile.pdw b/Makefile.pdw new file mode 100644 index 0000000..359bf8f --- /dev/null +++ b/Makefile.pdw @@ -0,0 +1,23 @@ +#****************************************************************************** +# @file Makefile.pdw +#****************************************************************************** +AS=aswin +CC=gccwin +LD=ldwin + +COPTS=-S -O2 -fno-common -ansi -I. -I./include -I../pdos/pdpclib -I../pdos/src -D__WIN32__ -D__NOBIVA__ -D__PDOS__ +COBJ=lib.o report.o rm.o + +all: clean rm.exe + +rm.exe: $(COBJ) + $(LD) -s -o rm.exe ../pdos/pdpclib/w32start.o $(COBJ) ../pdos/pdpclib/msvcrt.a ../pdos/src/kernel32.a + +.c.o: + $(CC) $(COPTS) -o $*.s $< + $(AS) -o $@ $*.s + rm -f $*.s + +clean: + rm -f $(OBJ) + rm -f rm.exe diff --git a/Makefile.w32 b/Makefile.w32 new file mode 100644 index 0000000..8996a60 --- /dev/null +++ b/Makefile.w32 @@ -0,0 +1,21 @@ +#****************************************************************************** +# @file Makefile.w32 +#****************************************************************************** +SRCDIR ?= $(CURDIR) +VPATH := $(SRCDIR) + +CC := gcc +CFLAGS := -D_FILE_OFFSET_BITS=64 -Wall -Werror -Wextra -std=c90 + +CSRC := lib.c report.c rm.c + +all: rm.exe + +clean: + + if exist rm.exe ( del /q rm.exe ) + if exist rm ( del /q rm ) + +rm.exe: $(CSRC) + + $(CC) $(CFLAGS) -o $@ $^ diff --git a/README.md b/README.md new file mode 100644 index 0000000..61d9f29 --- /dev/null +++ b/README.md @@ -0,0 +1,14 @@ +## Licesne + + All source code is Public Domain. + +## Obtain the source code + + git clone https://git.candlhat.org/rm.git + +## Building + + Windows: + + Make sure you have mingw installed and the location within your PATH variable + then run mingw32-make.exe -f Makefile.w32. diff --git a/lib.c b/lib.c new file mode 100644 index 0000000..284ad74 --- /dev/null +++ b/lib.c @@ -0,0 +1,156 @@ +/****************************************************************************** + * @file lib.c + *****************************************************************************/ +#include +#include +#include + +#include "rm.h" +#include "lib.h" +#include "report.h" + +static void print_usage (void) { + + if (program_name) { + fprintf (stderr, "Usage: %s [options] file...\n\n", program_name); + } + +} + +static void dynarray_add (void *ptab, long *nb_ptr, void *data) { + + long nb, nb_alloc; + void **pp; + + nb = *nb_ptr; + pp = *(void ***) ptab; + + if ((nb & (nb - 1)) == 0) { + + if (!nb) { + nb_alloc = 1; + } else { + nb_alloc = nb * 2; + } + + pp = xrealloc (pp, nb_alloc * sizeof (void *)); + *(void ***) ptab = pp; + + } + + pp[nb++] = data; + *nb_ptr = nb; + +} + +char *xstrdup (const char *__p) { + + char *p = xmalloc (strlen (__p) + 1); + + strcpy (p, __p); + return p; + +} + +void parse_args (int argc, char **argv, int optind) { + + const char *r; + + if (argc <= optind) { + + print_usage (); + exit (EXIT_SUCCESS); + + } + + r = argv[optind++]; + +check_options: + + if (r[0] == '-') { + ++r; + } + + while (*r != '\0') { + + char ch = *r++; + + if (ch == 'f') { + + state->fflag++; + continue; + + } + + if (ch == 'i') { + + state->iflag++; + continue; + + } + + if (ch == 'r') { + + state->rflag++; + continue; + + } + + report_at (program_name, 0, REPORT_ERROR, "invalid option -- '%c'", ch); + + print_usage (); + exit (EXIT_FAILURE); + + } + + if ((r = argv[optind])) { + + if (*r == '-') { + goto check_options; + } + + } + + if (optind >= argc) { + + print_usage (); + exit (EXIT_FAILURE); + + } + + while (optind < argc) { + dynarray_add (&state->files, &state->nb_files, xstrdup (argv[optind++])); + } + +} + +void *xmalloc (unsigned long __size) { + + void *ptr = malloc (__size); + + if (!ptr && __size) { + + report_at (program_name, 0, REPORT_ERROR, "memory full (malloc)"); + exit (EXIT_FAILURE); + + } + + memset (ptr, 0, __size); + return ptr; + +} + +void *xrealloc (void *__ptr, unsigned long __size) { + + void *ptr = realloc (__ptr, __size); + + if (!ptr && __size) { + + report_at (program_name, 0, REPORT_ERROR, "memory full (realloc)"); + exit (EXIT_FAILURE); + + } + + return ptr; + +} diff --git a/lib.h b/lib.h new file mode 100644 index 0000000..ec8cb8b --- /dev/null +++ b/lib.h @@ -0,0 +1,13 @@ +/****************************************************************************** + * @file lib.h + *****************************************************************************/ +#ifndef _LIB_H +#define _LIB_H + +char *xstrdup (const char *__p); +void parse_args (int argc, char **argv, int optind); + +void *xmalloc (unsigned long __size); +void *xrealloc (void *__ptr, unsigned long __size); + +#endif /* _LIB_H */ diff --git a/report.c b/report.c new file mode 100644 index 0000000..fb010ce --- /dev/null +++ b/report.c @@ -0,0 +1,149 @@ +/****************************************************************************** + * @file report.c + *****************************************************************************/ +#include +#include +#include + +#include "report.h" +unsigned int errors = 0; + +#ifndef __PDOS__ +#if defined (_WIN32) +# include +static int OriginalConsoleColor = -1; +#endif + +static void reset_console_color (void) { + +#if defined (_WIN32) + + HANDLE hStdError = GetStdHandle (STD_ERROR_HANDLE); + + if (OriginalConsoleColor == -1) { return; } + + SetConsoleTextAttribute (hStdError, OriginalConsoleColor); + OriginalConsoleColor = -1; + +#else + + fprintf (stderr, "\033[0m"); + +#endif + +} + +static void set_console_color (int color) { + +#if defined (_WIN32) + + HANDLE hStdError = GetStdHandle (STD_ERROR_HANDLE); + WORD wColor; + + if (OriginalConsoleColor == -1) { + + CONSOLE_SCREEN_BUFFER_INFO csbi; + + if (!GetConsoleScreenBufferInfo (hStdError, &csbi)) { + return; + } + + OriginalConsoleColor = csbi.wAttributes; + + } + + wColor = (OriginalConsoleColor & 0xF0) + (color & 0xF); + SetConsoleTextAttribute (hStdError, wColor); + +#else + + fprintf (stderr, "\033[%dm", color); + +#endif + +} +#endif + +static void output_message (const char *filename, unsigned int lineno, unsigned int idx, int type, const char *fmt, va_list ap) { + + if (filename) { + + if (lineno == 0) { + fprintf (stderr, "%s: ", filename); + } else { + fprintf (stderr, "%s:", filename); + } + + } + + if (lineno > 0) { + + if (idx == 0) { + fprintf (stderr, "%u: ", lineno); + } else { + fprintf (stderr, "%u:", lineno); + } + + } + + if (idx > 0) { + fprintf (stderr, "%u: ", idx); + } + + if (type == REPORT_ERROR || type == REPORT_FATAL_ERROR) { + +#ifndef __PDOS__ + set_console_color (COLOR_ERROR); +#endif + + if (type == REPORT_ERROR) { + fprintf (stderr, "error:"); + } else { + fprintf (stderr, "fatal error:"); + } + + } else if (type == REPORT_INTERNAL_ERROR) { + +#ifndef __PDOS__ + set_console_color (COLOR_INTERNAL_ERROR); +#endif + + fprintf (stderr, "internal error:"); + + } else if (type == REPORT_WARNING) { + +#ifndef __PDOS__ + set_console_color (COLOR_WARNING); +#endif + + fprintf (stderr, "warning:"); + + } + +#ifndef __PDOS__ + reset_console_color (); +#endif + + fprintf (stderr, " "); + vfprintf (stderr, fmt, ap); + fprintf (stderr, "\n"); + + if (type != REPORT_WARNING) { + ++errors; + } + +} + +unsigned int get_error_count (void) { + return errors; +} + +void report_at (const char *filename, unsigned int lineno, int type, const char *fmt, ...) { + + va_list ap; + + va_start (ap, fmt); + output_message (filename, lineno, 0, type, fmt, ap); + va_end (ap); + +} diff --git a/report.h b/report.h new file mode 100644 index 0000000..8e694dd --- /dev/null +++ b/report.h @@ -0,0 +1,25 @@ +/****************************************************************************** + * @file report.h + *****************************************************************************/ +#ifndef _REPORT_H +#define _REPORT_H + +#if defined (_WIN32) +# define COLOR_ERROR 12 +# define COLOR_WARNING 13 +# define COLOR_INTERNAL_ERROR 19 +#else +# define COLOR_ERROR 91 +# define COLOR_INTERNAL_ERROR 94 +# define COLOR_WARNING 95 +#endif + +#define REPORT_WARNING 0 +#define REPORT_ERROR 1 +#define REPORT_FATAL_ERROR 3 +#define REPORT_INTERNAL_ERROR 4 + +unsigned int get_error_count (void); +void report_at (const char *filename, unsigned int lineno, int type, const char *fmt, ...); + +#endif /* _REPORT_H */ diff --git a/rm.c b/rm.c new file mode 100644 index 0000000..70b9b34 --- /dev/null +++ b/rm.c @@ -0,0 +1,166 @@ +/****************************************************************************** + * @file ar.c + *****************************************************************************/ +#include +#include +#include +#include + +#include "rm.h" +#include "lib.h" +#include "report.h" + +struct rm_state *state = 0; +const char *program_name = 0; + +#if defined (_WIN32) +# include + +static BOOL IsDirectory (LPCTSTR szPath) { + + DWORD dwAttrib = GetFileAttributes (szPath); + return (dwAttrib != 0xFFFFFFFFL && (dwAttrib & FILE_ATTRIBUTE_DIRECTORY)); + +} + +static void rm (const char *path) { + + const char *p = path; + char *p2; + + unsigned long len; + + if (isalpha ((int) p[0]) && p[1] == ':') { + p += 2; + } + + while (*p == '/') { + p++; + } + + p2 = xstrdup (path); + + if (IsDirectory (p2)) { + + char *subpath, *filename; + + HANDLE hFind; + WIN32_FIND_DATA FindFileData; + + if (!state->rflag && !state->fflag) { + + report_at (program_name, 0, REPORT_ERROR, "cannot remove directoies without -r"); + + free (p2); + return; + + } + + len = strlen (p2); + + if (p2[len - 1] == '/') { + + subpath = xmalloc (len + 5); + sprintf (subpath, "%s*.*", p2); + + } else { + + subpath = xmalloc (len + 6); + sprintf (subpath, "%s/*.*", p2); + + } + + if ((hFind = FindFirstFile (subpath, &FindFileData)) == INVALID_HANDLE_VALUE) { + + free (subpath); + return; + + } + + free (subpath); + + do { + + filename = FindFileData.cFileName; + + if (filename[0] == '.' && (filename[1] == '\0' || (filename[1] == '.' && filename[2] == '\0'))) { + continue; + } + + len = strlen (path); + + if (path[len - 1] == '/') { + + len += (strlen (filename) + 1); + + if (!(subpath = malloc (len))) { + + report_at (program_name, 0, REPORT_ERROR, "failed to allocate memory for '%s'", filename); + continue; + + } + + sprintf (subpath, "%s%s", path, filename); + + } else { + + len += (1 + strlen (filename) + 1); + + if (!(subpath = malloc (len))) { + + report_at (program_name, 0, REPORT_ERROR, "failed to allocate memory for '%s'", filename); + continue; + + } + + sprintf (subpath, "%s/%s", path, filename); + + } + + rm (subpath); + free (subpath); + + } while (FindNextFile (hFind, &FindFileData) != 0); + + FindClose (hFind); + + } else { + + int ret = remove (p2); + + if (!state->fflag && ret) { + report_at (program_name, 0, REPORT_ERROR, "unable to remove %s", p2); + } + + } + + free (p2); + +} +#endif + +int main (int argc, char **argv) { + + long i; + + if (argc && *argv) { + + char *p; + program_name = *argv; + + if ((p = strrchr (program_name, '/')) || (p = strrchr (program_name, '\\'))) { + program_name = (p + 1); + } + + } + + state = xmalloc (sizeof (*state)); + parse_args (argc, argv, 1); + + for (i = 0; i < state->nb_files; ++i) { + rm (state->files[i]); + } + + return (get_error_count () > 0 ? EXIT_FAILURE : EXIT_SUCCESS); + +} diff --git a/rm.h b/rm.h new file mode 100644 index 0000000..012d559 --- /dev/null +++ b/rm.h @@ -0,0 +1,21 @@ +/****************************************************************************** + * @file rm.h + *****************************************************************************/ +#ifndef _RM_H +#define _RM_H + +struct rm_state { + + const char **files; + long nb_files; + + int fflag; + int iflag; + int rflag; + +}; + +extern struct rm_state *state; +extern const char *program_name; + +#endif /* _RM_H */ -- 2.34.1