/branches/dd/uspace/app/bdsh/cmds/modules/ls/ls.c |
---|
0,0 → 1,214 |
/* Copyright (c) 2008, Tim Post <tinkertim@gmail.com> |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions are met: |
* |
* Redistributions of source code must retain the above copyright notice, this |
* list of conditions and the following disclaimer. |
* |
* Redistributions in binary form must reproduce the above copyright notice, |
* this list of conditions and the following disclaimer in the documentation |
* and/or other materials provided with the distribution. |
* |
* Neither the name of the original program's authors nor the names of its |
* contributors may be used to endorse or promote products derived from this |
* software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
* POSSIBILITY OF SUCH DAMAGE. |
*/ |
/* NOTE: |
* This is a bit of an ugly hack, working around the absence of fstat / etc. |
* As more stuff is completed and exposed in libc, this will improve */ |
#include <stdio.h> |
#include <stdlib.h> |
#include <unistd.h> |
#include <dirent.h> |
#include <fcntl.h> |
#include <sys/types.h> |
#include <sys/stat.h> |
#include <string.h> |
#include "errors.h" |
#include "config.h" |
#include "util.h" |
#include "entry.h" |
#include "ls.h" |
#include "cmds.h" |
static char *cmdname = "ls"; |
static inline off_t flen(const char *f) |
{ |
int fd; |
off_t size; |
fd = open(f, O_RDONLY); |
if (fd == -1) |
return 0; |
size = lseek(fd, 0, SEEK_END); |
close(fd); |
if (size < 0) |
size = 0; |
return size; |
} |
static unsigned int ls_scope(const char *path) |
{ |
int fd; |
DIR *dirp; |
dirp = opendir(path); |
if (dirp) { |
closedir(dirp); |
return LS_DIR; |
} |
fd = open(path, O_RDONLY); |
if (fd > 0) { |
close(fd); |
return LS_FILE; |
} |
return LS_BOGUS; |
} |
static void ls_scan_dir(const char *d, DIR *dirp) |
{ |
struct dirent *dp; |
unsigned int scope; |
char *buff; |
if (! dirp) |
return; |
buff = (char *)malloc(PATH_MAX); |
if (NULL == buff) { |
cli_error(CL_ENOMEM, "ls: failed to scan %s", d); |
return; |
} |
while ((dp = readdir(dirp))) { |
memset(buff, 0, sizeof(buff)); |
/* Don't worry if inserting a double slash, this will be fixed by |
* absolutize() later with subsequent calls to open() or readdir() */ |
snprintf(buff, PATH_MAX - 1, "%s/%s", d, dp->d_name); |
scope = ls_scope(buff); |
switch (scope) { |
case LS_DIR: |
ls_print_dir(dp->d_name); |
break; |
case LS_FILE: |
ls_print_file(dp->d_name, buff); |
break; |
case LS_BOGUS: |
/* Odd chance it was deleted from the time readdir() found |
* it and the time that it was scoped */ |
printf("ls: skipping bogus node %s\n", dp->d_name); |
break; |
} |
} |
free(buff); |
return; |
} |
/* ls_print_* currently does nothing more than print the entry. |
* in the future, we will likely pass the absolute path, and |
* some sort of ls_options structure that controls how each |
* entry is printed and what is printed about it. |
* |
* Now we just print basic DOS style lists */ |
static void ls_print_dir(const char *d) |
{ |
printf("%-40s\t<dir>\n", d); |
return; |
} |
static void ls_print_file(const char *name, const char *pathname) |
{ |
printf("%-40s\t%llu\n", name, (long long) flen(pathname)); |
return; |
} |
void help_cmd_ls(unsigned int level) |
{ |
if (level == HELP_SHORT) { |
printf("`%s' lists files and directories.\n", cmdname); |
} else { |
help_cmd_ls(HELP_SHORT); |
printf(" `%s' [path], if no path is given the current " |
"working directory is used.\n", cmdname); |
} |
return; |
} |
int cmd_ls(char **argv) |
{ |
unsigned int argc; |
unsigned int scope; |
char *buff; |
DIR *dirp; |
argc = cli_count_args(argv); |
buff = (char *) malloc(PATH_MAX); |
if (NULL == buff) { |
cli_error(CL_ENOMEM, "%s: ", cmdname); |
return CMD_FAILURE; |
} |
memset(buff, 0, sizeof(buff)); |
if (argc == 1) |
getcwd(buff, PATH_MAX); |
else |
strncpy(buff, argv[1], PATH_MAX); |
scope = ls_scope(buff); |
switch (scope) { |
case LS_BOGUS: |
cli_error(CL_ENOENT, buff); |
free(buff); |
return CMD_FAILURE; |
case LS_FILE: |
ls_print_file(buff, buff); |
break; |
case LS_DIR: |
dirp = opendir(buff); |
if (! dirp) { |
/* May have been deleted between scoping it and opening it */ |
cli_error(CL_EFAIL, "Could not stat %s", buff); |
free(buff); |
return CMD_FAILURE; |
} |
ls_scan_dir(buff, dirp); |
closedir(dirp); |
break; |
} |
free(buff); |
return CMD_SUCCESS; |
} |
/branches/dd/uspace/app/bdsh/cmds/modules/ls/ls.h |
---|
0,0 → 1,16 |
#ifndef LS_H |
#define LS_H |
/* Various values that can be returned by ls_scope() */ |
#define LS_BOGUS 0 |
#define LS_FILE 1 |
#define LS_DIR 2 |
static unsigned int ls_scope(const char *); |
static void ls_scan_dir(const char *, DIR *); |
static void ls_print_dir(const char *); |
static void ls_print_file(const char *, const char *); |
#endif /* LS_H */ |
/branches/dd/uspace/app/bdsh/cmds/modules/ls/ls_def.h |
---|
0,0 → 1,6 |
{ |
"ls", |
"List files and directories", |
&cmd_ls, |
&help_cmd_ls, |
}, |
/branches/dd/uspace/app/bdsh/cmds/modules/ls/entry.h |
---|
0,0 → 1,9 |
#ifndef LS_ENTRY_H |
#define LS_ENTRY_H |
/* Entry points for the ls command */ |
extern int cmd_ls(char **); |
extern void help_cmd_ls(unsigned int); |
#endif /* LS_ENTRY_H */ |
/branches/dd/uspace/app/bdsh/cmds/modules/cp/cp.c |
---|
0,0 → 1,231 |
/* Copyright (c) 2008, Tim Post <tinkertim@gmail.com> |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions are met: |
* |
* Redistributions of source code must retain the above copyright notice, this |
* list of conditions and the following disclaimer. |
* |
* Redistributions in binary form must reproduce the above copyright notice, |
* this list of conditions and the following disclaimer in the documentation |
* and/or other materials provided with the distribution. |
* |
* Neither the name of the original program's authors nor the names of its |
* contributors may be used to endorse or promote products derived from this |
* software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
* POSSIBILITY OF SUCH DAMAGE. |
*/ |
#include <stdio.h> |
#include <stdlib.h> |
#include <unistd.h> |
#include <getopt.h> |
#include <string.h> |
#include <fcntl.h> |
#include "config.h" |
#include "util.h" |
#include "errors.h" |
#include "entry.h" |
#include "cp.h" |
#include "cmds.h" |
#define CP_VERSION "0.0.1" |
#define CP_DEFAULT_BUFLEN 1024 |
static const char *cmdname = "cp"; |
static struct option const long_options[] = { |
{ "buffer", required_argument, 0, 'b' }, |
{ "force", no_argument, 0, 'f' }, |
{ "recursive", no_argument, 0, 'r' }, |
{ "help", no_argument, 0, 'h' }, |
{ "version", no_argument, 0, 'v' }, |
{ "verbose", no_argument, 0, 'V' }, |
{ 0, 0, 0, 0 } |
}; |
static int strtoint(const char *s1) |
{ |
long t1; |
if (-1 == (t1 = strtol(s1, (char **) NULL, 10))) |
return -1; |
if (t1 <= 0) |
return -1; |
return (int) t1; |
} |
static int64_t copy_file(const char *src, const char *dest, |
size_t blen, int vb) |
{ |
int fd1, fd2, bytes = 0; |
off_t total = 0; |
int64_t copied = 0; |
char *buff = NULL; |
if (vb) |
printf("Copying %s to %s\n", src, dest); |
if (-1 == (fd1 = open(src, O_RDONLY))) { |
printf("Unable to open source file %s\n", src); |
return -1; |
} |
if (-1 == (fd2 = open(dest, O_CREAT))) { |
printf("Unable to open destination file %s\n", dest); |
close(fd1); |
return -1; |
} |
total = lseek(fd1, 0, SEEK_END); |
if (vb) |
printf("%d bytes to copy\n", total); |
lseek(fd1, 0, SEEK_SET); |
if (NULL == (buff = (char *) malloc(blen))) { |
printf("Unable to allocate enough memory to read %s\n", |
src); |
copied = -1; |
goto out; |
} |
for (;;) { |
ssize_t res; |
bytes = read(fd1, buff, blen); |
if (bytes <= 0) |
break; |
copied += bytes; |
res = bytes; |
do { |
/* |
* Theoretically, it may not be enough to call write() |
* only once. Also the previous read() may have |
* returned less data than requested. |
*/ |
bytes = write(fd2, buff, res); |
if (bytes < 0) |
goto err; |
res -= bytes; |
} while (res > 0); |
/* TODO: re-insert assert() once this is stand alone, |
* removed as abort() exits the entire shell |
*/ |
if (res != 0) { |
printf("\n%d more bytes than actually exist were copied\n", res); |
goto err; |
} |
} |
if (bytes < 0) { |
err: |
printf("\nError copying %s, (%d)\n", src, bytes); |
copied = bytes; |
} |
out: |
close(fd1); |
close(fd2); |
if (buff) |
free(buff); |
return copied; |
} |
void help_cmd_cp(unsigned int level) |
{ |
static char helpfmt[] = |
"Usage: %s [options] <source> <dest>\n" |
"Options: (* indicates not yet implemented)\n" |
" -h, --help A short option summary\n" |
" -v, --version Print version information and exit\n" |
"* -V, --verbose Be annoyingly noisy about what's being done\n" |
"* -f, --force Do not complain when <dest> exists\n" |
"* -r, --recursive Copy entire directories\n" |
" -b, --buffer ## Set the read buffer size to ##\n" |
"Currently, %s is under development, some options may not work.\n"; |
if (level == HELP_SHORT) { |
printf("`%s' copies files and directories\n", cmdname); |
} else { |
help_cmd_cp(HELP_SHORT); |
printf(helpfmt, cmdname, cmdname); |
} |
return; |
} |
int cmd_cp(char **argv) |
{ |
unsigned int argc, buffer = 0, verbose = 0; |
int c, opt_ind; |
int64_t ret; |
argc = cli_count_args(argv); |
for (c = 0, optind = 0, opt_ind = 0; c != -1;) { |
c = getopt_long(argc, argv, "hvVfrb:", long_options, &opt_ind); |
switch (c) { |
case 'h': |
help_cmd_cp(1); |
return CMD_SUCCESS; |
case 'v': |
printf("%d\n", CP_VERSION); |
return CMD_SUCCESS; |
case 'V': |
verbose = 1; |
break; |
case 'f': |
break; |
case 'r': |
break; |
case 'b': |
if (-1 == (buffer = strtoint(optarg))) { |
printf("%s: Invalid buffer specification, " |
"(should be a number greater than zero)\n", |
cmdname); |
return CMD_FAILURE; |
} |
if (verbose) |
printf("Buffer = %d\n", buffer); |
break; |
} |
} |
if (buffer == 0) |
buffer = CP_DEFAULT_BUFLEN; |
argc -= optind; |
if (argc != 2) { |
printf("%s: invalid number of arguments. Try %s --help\n", |
cmdname, cmdname); |
return CMD_FAILURE; |
} |
ret = copy_file(argv[optind], argv[optind + 1], buffer, verbose); |
if (verbose) |
printf("%d bytes copied\n", ret); |
if (ret >= 0) |
return CMD_SUCCESS; |
else |
return CMD_FAILURE; |
} |
/branches/dd/uspace/app/bdsh/cmds/modules/cp/cp_def.h |
---|
0,0 → 1,7 |
{ |
"cp", |
"Copy files and directories", |
&cmd_cp, |
&help_cmd_cp, |
}, |
/branches/dd/uspace/app/bdsh/cmds/modules/cp/entry.h |
---|
0,0 → 1,9 |
#ifndef CP_ENTRY_H |
#define CP_ENTRY_H |
/* Entry points for the cp command */ |
extern int cmd_cp(char **); |
extern void help_cmd_cp(unsigned int); |
#endif /* CP_ENTRY_H */ |
/branches/dd/uspace/app/bdsh/cmds/modules/cp/cp.h |
---|
0,0 → 1,8 |
#ifndef CP_H |
#define CP_H |
/* Prototypes for the cp command, excluding entry points */ |
#endif /* CP_H */ |
/branches/dd/uspace/app/bdsh/cmds/modules/rm/rm.c |
---|
0,0 → 1,257 |
/* Copyright (c) 2008, Tim Post <tinkertim@gmail.com> |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions are met: |
* |
* Redistributions of source code must retain the above copyright notice, this |
* list of conditions and the following disclaimer. |
* |
* Redistributions in binary form must reproduce the above copyright notice, |
* this list of conditions and the following disclaimer in the documentation |
* and/or other materials provided with the distribution. |
* |
* Neither the name of the original program's authors nor the names of its |
* contributors may be used to endorse or promote products derived from this |
* software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
* POSSIBILITY OF SUCH DAMAGE. |
*/ |
#include <stdio.h> |
#include <stdlib.h> |
#include <unistd.h> |
#include <fcntl.h> |
#include <dirent.h> |
#include <getopt.h> |
#include "config.h" |
#include "errors.h" |
#include "util.h" |
#include "entry.h" |
#include "rm.h" |
#include "cmds.h" |
static char *cmdname = "rm"; |
#define RM_VERSION "0.0.1" |
static rm_job_t rm; |
static struct option const long_options[] = { |
{ "help", no_argument, 0, 'h' }, |
{ "version", no_argument, 0, 'v' }, |
{ "recursive", no_argument, 0, 'r' }, |
{ "force", no_argument, 0, 'f' }, |
{ "safe", no_argument, 0, 's' }, |
{ 0, 0, 0, 0 } |
}; |
static unsigned int rm_start(rm_job_t *rm) |
{ |
rm->recursive = 0; |
rm->force = 0; |
rm->safe = 0; |
/* Make sure we can allocate enough memory to store |
* what is needed in the job structure */ |
if (NULL == (rm->nwd = (char *) malloc(PATH_MAX))) |
return 0; |
memset(rm->nwd, 0, sizeof(rm->nwd)); |
if (NULL == (rm->owd = (char *) malloc(PATH_MAX))) |
return 0; |
memset(rm->owd, 0, sizeof(rm->owd)); |
if (NULL == (rm->cwd = (char *) malloc(PATH_MAX))) |
return 0; |
memset(rm->cwd, 0, sizeof(rm->cwd)); |
chdir("."); |
if (NULL == (getcwd(rm->owd, PATH_MAX))) |
return 0; |
return 1; |
} |
static void rm_end(rm_job_t *rm) |
{ |
if (NULL != rm->nwd) |
free(rm->nwd); |
if (NULL != rm->owd) |
free(rm->owd); |
if (NULL != rm->cwd) |
free(rm->cwd); |
return; |
} |
static unsigned int rm_recursive(const char *path) |
{ |
int rc; |
/* First see if it will just go away */ |
rc = rmdir(path); |
if (rc == 0) |
return 0; |
/* Its not empty, recursively scan it */ |
cli_error(CL_ENOTSUP, |
"Can not remove %s, directory not empty", path); |
return 1; |
} |
static unsigned int rm_single(const char *path) |
{ |
if (unlink(path)) { |
cli_error(CL_EFAIL, "rm: could not remove file %s", path); |
return 1; |
} |
return 0; |
} |
static unsigned int rm_scope(const char *path) |
{ |
int fd; |
DIR *dirp; |
dirp = opendir(path); |
if (dirp) { |
closedir(dirp); |
return RM_DIR; |
} |
fd = open(path, O_RDONLY); |
if (fd > 0) { |
close(fd); |
return RM_FILE; |
} |
return RM_BOGUS; |
} |
/* Dispays help for rm in various levels */ |
void help_cmd_rm(unsigned int level) |
{ |
if (level == HELP_SHORT) { |
printf("`%s' removes files and directories.\n", cmdname); |
} else { |
help_cmd_rm(HELP_SHORT); |
printf( |
"Usage: %s [options] <path>\n" |
"Options:\n" |
" -h, --help A short option summary\n" |
" -v, --version Print version information and exit\n" |
" -r, --recursive Recursively remove sub directories\n" |
" -f, --force Do not prompt prior to removing files\n" |
" -s, --safe Stop if directories change during removal\n\n" |
"Currently, %s is under development, some options don't work.\n", |
cmdname, cmdname); |
} |
return; |
} |
/* Main entry point for rm, accepts an array of arguments */ |
int cmd_rm(char **argv) |
{ |
unsigned int argc; |
unsigned int i, scope, ret = 0; |
int c, opt_ind; |
size_t len; |
char *buff = NULL; |
argc = cli_count_args(argv); |
if (argc < 2) { |
cli_error(CL_EFAIL, |
"%s: insufficient arguments. Try %s --help", cmdname, cmdname); |
return CMD_FAILURE; |
} |
if (!rm_start(&rm)) { |
cli_error(CL_ENOMEM, "%s: could not initialize", cmdname); |
rm_end(&rm); |
return CMD_FAILURE; |
} |
for (c = 0, optind = 0, opt_ind = 0; c != -1;) { |
c = getopt_long(argc, argv, "hvrfs", long_options, &opt_ind); |
switch (c) { |
case 'h': |
help_cmd_rm(HELP_LONG); |
return CMD_SUCCESS; |
case 'v': |
printf("%s\n", RM_VERSION); |
return CMD_SUCCESS; |
case 'r': |
rm.recursive = 1; |
break; |
case 'f': |
rm.force = 1; |
break; |
case 's': |
rm.safe = 1; |
break; |
} |
} |
if (optind == argc) { |
cli_error(CL_EFAIL, |
"%s: insufficient arguments. Try %s --help", cmdname, cmdname); |
rm_end(&rm); |
return CMD_FAILURE; |
} |
i = optind; |
while (NULL != argv[i]) { |
len = strlen(argv[i]) + 2; |
buff = (char *) realloc(buff, len); |
if (buff == NULL) { |
printf("rm: out of memory\n"); |
ret = 1; |
break; |
} |
memset(buff, 0, sizeof(buff)); |
snprintf(buff, len, argv[i]); |
scope = rm_scope(buff); |
switch (scope) { |
case RM_BOGUS: /* FIXME */ |
case RM_FILE: |
ret += rm_single(buff); |
break; |
case RM_DIR: |
if (! rm.recursive) { |
printf("%s is a directory, use -r to remove it.\n", buff); |
ret ++; |
} else { |
ret += rm_recursive(buff); |
} |
break; |
} |
i++; |
} |
if (NULL != buff) |
free(buff); |
rm_end(&rm); |
if (ret) |
return CMD_FAILURE; |
else |
return CMD_SUCCESS; |
} |
/branches/dd/uspace/app/bdsh/cmds/modules/rm/rm_def.h |
---|
0,0 → 1,7 |
{ |
"rm", |
"Remove files and directories", |
&cmd_rm, |
&help_cmd_rm, |
}, |
/branches/dd/uspace/app/bdsh/cmds/modules/rm/entry.h |
---|
0,0 → 1,9 |
#ifndef RM_ENTRY_H |
#define RM_ENTRY_H |
/* Entry points for the rm command */ |
extern int cmd_rm(char **); |
extern void help_cmd_rm(unsigned int); |
#endif /* RM_ENTRY_H */ |
/branches/dd/uspace/app/bdsh/cmds/modules/rm/rm.h |
---|
0,0 → 1,43 |
#ifndef RM_H |
#define RM_H |
/* Return values for rm_scope() */ |
#define RM_BOGUS 0 |
#define RM_FILE 1 |
#define RM_DIR 2 |
/* Flags for rm_update() */ |
#define _RM_ENTRY 0 |
#define _RM_ADVANCE 1 |
#define _RM_REWIND 2 |
#define _RM_EXIT 3 |
/* A simple job structure */ |
typedef struct { |
/* Options set at run time */ |
unsigned int force; /* -f option */ |
unsigned int recursive; /* -r option */ |
unsigned int safe; /* -s option */ |
/* Keeps track of the job in progress */ |
int advance; /* How far deep we've gone since entering */ |
DIR *entry; /* Entry point to the tree being removed */ |
char *owd; /* Where we were when we invoked rm */ |
char *cwd; /* Current directory being transversed */ |
char *nwd; /* Next directory to be transversed */ |
/* Counters */ |
int f_removed; /* Number of files unlinked */ |
int d_removed; /* Number of directories unlinked */ |
} rm_job_t; |
/* Prototypes for the rm command, excluding entry points */ |
static unsigned int rm_start(rm_job_t *); |
static void rm_end(rm_job_t *rm); |
static unsigned int rm_recursive(const char *); |
static unsigned int rm_single(const char *); |
static unsigned int rm_scope(const char *); |
#endif /* RM_H */ |
/branches/dd/uspace/app/bdsh/cmds/modules/touch/touch.c |
---|
0,0 → 1,108 |
/* Copyright (c) 2008, Tim Post <tinkertim@gmail.com> |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions are met: |
* |
* Redistributions of source code must retain the above copyright notice, this |
* list of conditions and the following disclaimer. |
* |
* Redistributions in binary form must reproduce the above copyright notice, |
* this list of conditions and the following disclaimer in the documentation |
* and/or other materials provided with the distribution. |
* |
* Neither the name of the original program's authors nor the names of its |
* contributors may be used to endorse or promote products derived from this |
* software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
* POSSIBILITY OF SUCH DAMAGE. |
*/ |
/* TODO: Options that people would expect, such as not creating the file if |
* it doesn't exist, specifying the access time, etc */ |
#include <stdio.h> |
#include <stdlib.h> |
#include <unistd.h> |
#include <fcntl.h> |
#include <dirent.h> |
#include <sys/types.h> |
#include <string.h> |
#include "config.h" |
#include "errors.h" |
#include "util.h" |
#include "entry.h" |
#include "touch.h" |
#include "cmds.h" |
static char *cmdname = "touch"; |
/* Dispays help for touch in various levels */ |
void help_cmd_touch(unsigned int level) |
{ |
if (level == HELP_SHORT) { |
printf("`%s' updates access times for files\n", cmdname); |
} else { |
help_cmd_touch(HELP_SHORT); |
printf(" `%s' <file>, if the file does not exist it will be " |
"created\n", cmdname); |
} |
return; |
} |
/* Main entry point for touch, accepts an array of arguments */ |
int cmd_touch(char **argv) |
{ |
unsigned int argc, i = 0, ret = 0; |
int fd; |
char *buff = NULL; |
DIR *dirp; |
argc = cli_count_args(argv); |
if (argc == 1) { |
printf("%s - incorrect number of arguments. Try `help %s extended'\n", |
cmdname, cmdname); |
return CMD_FAILURE; |
} |
for (i = 1; i < argc; i ++) { |
buff = strdup(argv[i]); |
dirp = opendir(buff); |
if (dirp) { |
cli_error(CL_ENOTSUP, "%s is a directory", buff); |
closedir(dirp); |
ret ++; |
continue; |
} |
fd = open(buff, O_RDWR | O_CREAT); |
if (fd < 0) { |
cli_error(CL_EFAIL, "Could not update / create %s ", buff); |
ret ++; |
continue; |
} else |
close(fd); |
free(buff); |
} |
if (ret) |
return CMD_FAILURE; |
else |
return CMD_SUCCESS; |
} |
/branches/dd/uspace/app/bdsh/cmds/modules/touch/touch_def.h |
---|
0,0 → 1,7 |
{ |
"touch", |
"Create files or update access times", |
&cmd_touch, |
&help_cmd_touch, |
}, |
/branches/dd/uspace/app/bdsh/cmds/modules/touch/entry.h |
---|
0,0 → 1,9 |
#ifndef TOUCH_ENTRY_H |
#define TOUCH_ENTRY_H |
/* Entry points for the touch command */ |
extern int cmd_touch(char **); |
extern void help_cmd_touch(unsigned int); |
#endif /* TOUCH_ENTRY_H */ |
/branches/dd/uspace/app/bdsh/cmds/modules/touch/touch.h |
---|
0,0 → 1,8 |
#ifndef TOUCH_H |
#define TOUCH_H |
/* Prototypes for the touch command, excluding entry points */ |
#endif /* TOUCH_H */ |
/branches/dd/uspace/app/bdsh/cmds/modules/mkdir/mkdir.c |
---|
0,0 → 1,251 |
/* Copyright (c) 2008, Tim Post <tinkertim@gmail.com> |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions are met: |
* |
* Redistributions of source code must retain the above copyright notice, this |
* list of conditions and the following disclaimer. |
* |
* Redistributions in binary form must reproduce the above copyright notice, |
* this list of conditions and the following disclaimer in the documentation |
* and/or other materials provided with the distribution. |
* |
* Neither the name of the original program's authors nor the names of its |
* contributors may be used to endorse or promote products derived from this |
* software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
* POSSIBILITY OF SUCH DAMAGE. |
*/ |
#include <stdio.h> |
#include <stdlib.h> |
#include <dirent.h> |
#include <fcntl.h> |
#include <sys/types.h> |
#include <sys/stat.h> |
#include <getopt.h> |
#include <stdarg.h> |
#include "config.h" |
#include "errors.h" |
#include "util.h" |
#include "entry.h" |
#include "mkdir.h" |
#include "cmds.h" |
#define MKDIR_VERSION "0.0.1" |
static char *cmdname = "mkdir"; |
static struct option const long_options[] = { |
{"parents", no_argument, 0, 'p'}, |
{"verbose", no_argument, 0, 'v'}, |
{"mode", required_argument, 0, 'm'}, |
{"help", no_argument, 0, 'h'}, |
{"version", no_argument, 0, 'V'}, |
{"follow", no_argument, 0, 'f'}, |
{0, 0, 0, 0} |
}; |
void help_cmd_mkdir(unsigned int level) |
{ |
if (level == HELP_SHORT) { |
printf("`%s' creates a new directory\n", cmdname); |
} else { |
help_cmd_mkdir(HELP_SHORT); |
printf( |
"Usage: %s [options] <path>\n" |
"Options:\n" |
" -h, --help A short option summary\n" |
" -V, --version Print version information and exit\n" |
" -p, --parents Create needed parents for <path>\n" |
" -m, --mode Set permissions to [mode] (UNUSED)\n" |
" -v, --verbose Be extremely noisy about what is happening\n" |
" -f, --follow Go to the new directory once created\n" |
"Currently, %s is under development, some options don't work.\n", |
cmdname, cmdname); |
} |
return; |
} |
/* This is kind of clunky, but effective for now */ |
static unsigned int |
create_directory(const char *path, unsigned int p) |
{ |
DIR *dirp; |
char *tmp = NULL, *buff = NULL, *wdp = NULL; |
char *dirs[255]; |
unsigned int absolute = 0, i = 0, ret = 0; |
/* Its a good idea to allocate path, plus we (may) need a copy of |
* path to tokenize if parents are specified */ |
if (NULL == (tmp = strdup(path))) { |
cli_error(CL_ENOMEM, "%s: path too big?", cmdname); |
return 1; |
} |
if (NULL == (wdp = (char *) malloc(PATH_MAX))) { |
cli_error(CL_ENOMEM, "%s: could not alloc cwd", cmdname); |
free(tmp); |
return 1; |
} |
/* The only reason for wdp is to be (optionally) verbose */ |
getcwd(wdp, PATH_MAX); |
/* Typical use without specifying the creation of parents */ |
if (p == 0) { |
dirp = opendir(tmp); |
if (dirp) { |
cli_error(CL_EEXISTS, "%s: can not create %s, try -p", cmdname, path); |
closedir(dirp); |
goto finit; |
} |
if (-1 == (mkdir(tmp, 0))) { |
cli_error(CL_EFAIL, "%s: could not create %s", cmdname, path); |
goto finit; |
} |
} |
/* Parents need to be created, path has to be broken up */ |
/* See if path[0] is a slash, if so we have to remember to append it */ |
if (tmp[0] == '/') |
absolute = 1; |
/* TODO: Canonify the path prior to tokenizing it, see below */ |
dirs[i] = strtok(tmp, "/"); |
while (dirs[i] && i < 255) |
dirs[++i] = strtok(NULL, "/"); |
if (NULL == dirs[0]) |
return 1; |
if (absolute == 1) { |
asprintf(&buff, "/%s", dirs[0]); |
mkdir(buff, 0); |
chdir(buff); |
free(buff); |
getcwd(wdp, PATH_MAX); |
i = 1; |
} else { |
i = 0; |
} |
while (dirs[i] != NULL) { |
/* Sometimes make or scripts conjoin odd paths. Account for something |
* like this: ../../foo/bar/../foo/foofoo/./bar */ |
if (!strcmp(dirs[i], "..") || !strcmp(dirs[i], ".")) { |
if (0 != (chdir(dirs[i]))) { |
cli_error(CL_EFAIL, "%s: impossible path: %s", |
cmdname, path); |
ret ++; |
goto finit; |
} |
getcwd(wdp, PATH_MAX); |
} else { |
if (-1 == (mkdir(dirs[i], 0))) { |
cli_error(CL_EFAIL, |
"%s: failed at %s/%s", wdp, dirs[i]); |
ret ++; |
goto finit; |
} |
if (0 != (chdir(dirs[i]))) { |
cli_error(CL_EFAIL, "%s: failed creating %s\n", |
cmdname, dirs[i]); |
ret ++; |
break; |
} |
} |
i++; |
} |
goto finit; |
finit: |
free(wdp); |
free(tmp); |
return ret; |
} |
int cmd_mkdir(char **argv) |
{ |
unsigned int argc, create_parents = 0, i, ret = 0, follow = 0; |
unsigned int verbose = 0; |
int c, opt_ind; |
char *cwd; |
argc = cli_count_args(argv); |
for (c = 0, optind = 0, opt_ind = 0; c != -1;) { |
c = getopt_long(argc, argv, "pvhVfm:", long_options, &opt_ind); |
switch (c) { |
case 'p': |
create_parents = 1; |
break; |
case 'v': |
verbose = 1; |
break; |
case 'h': |
help_cmd_mkdir(HELP_LONG); |
return CMD_SUCCESS; |
case 'V': |
printf("%s\n", MKDIR_VERSION); |
return CMD_SUCCESS; |
case 'f': |
follow = 1; |
break; |
case 'm': |
printf("%s: [W] Ignoring mode %s\n", cmdname, optarg); |
break; |
} |
} |
argc -= optind; |
if (argc < 1) { |
printf("%s - incorrect number of arguments. Try `%s --help'\n", |
cmdname, cmdname); |
return CMD_FAILURE; |
} |
if (NULL == (cwd = (char *) malloc(PATH_MAX))) { |
cli_error(CL_ENOMEM, "%s: could not allocate cwd", cmdname); |
return CMD_FAILURE; |
} |
memset(cwd, 0, sizeof(cwd)); |
getcwd(cwd, PATH_MAX); |
for (i = optind; argv[i] != NULL; i++) { |
if (verbose == 1) |
printf("%s: creating %s%s\n", |
cmdname, argv[i], |
create_parents ? " (and all parents)" : ""); |
ret += create_directory(argv[i], create_parents); |
} |
if (follow == 0) |
chdir(cwd); |
free(cwd); |
if (ret) |
return CMD_FAILURE; |
else |
return CMD_SUCCESS; |
} |
/branches/dd/uspace/app/bdsh/cmds/modules/mkdir/mkdir_def.h |
---|
0,0 → 1,8 |
{ |
"mkdir", |
"Create new directories", |
&cmd_mkdir, |
&help_cmd_mkdir, |
}, |
/branches/dd/uspace/app/bdsh/cmds/modules/mkdir/entry.h |
---|
0,0 → 1,9 |
#ifndef MKDIR_ENTRY_H |
#define MKDIR_ENTRY_H |
/* Entry points for the mkdir command */ |
extern int cmd_mkdir(char **); |
extern void help_cmd_mkdir(unsigned int); |
#endif /* MKDIR_ENTRY_H */ |
/branches/dd/uspace/app/bdsh/cmds/modules/mkdir/mkdir.h |
---|
0,0 → 1,8 |
#ifndef MKDIR_H |
#define MKDIR_H |
/* Prototypes for the mkdir command, excluding entry points */ |
static unsigned int create_directory(const char *, unsigned int); |
#endif /* MKDIR_H */ |
/branches/dd/uspace/app/bdsh/cmds/modules/modules.h |
---|
0,0 → 1,47 |
#ifndef MODULES_H |
#define MODULES_H |
/* Each built in function has two files, one being an entry.h file which |
* prototypes the run/help entry functions, the other being a .def file |
* which fills the modules[] array according to the cmd_t structure |
* defined in cmds.h. |
* |
* To add or remove a module, just make a new directory in cmds/modules |
* for it and copy the 'show' example for basics, then include it here. |
* (or reverse the process to remove one) |
* |
* NOTE: See module_ aliases.h as well, this is where aliases (commands that |
* share an entry point with others) are indexed */ |
#include "config.h" |
/* Prototypes for each module's entry (help/exec) points */ |
#include "help/entry.h" |
#include "mkdir/entry.h" |
#include "rm/entry.h" |
#include "cat/entry.h" |
#include "touch/entry.h" |
#include "ls/entry.h" |
#include "pwd/entry.h" |
#include "sleep/entry.h" |
#include "cp/entry.h" |
/* Each .def function fills the module_t struct with the individual name, entry |
* point, help entry point, etc. You can use config.h to control what modules |
* are loaded based on what libraries exist on the system. */ |
module_t modules[] = { |
#include "help/help_def.h" |
#include "mkdir/mkdir_def.h" |
#include "rm/rm_def.h" |
#include "cat/cat_def.h" |
#include "touch/touch_def.h" |
#include "ls/ls_def.h" |
#include "pwd/pwd_def.h" |
#include "sleep/sleep_def.h" |
#include "cp/cp_def.h" |
{NULL, NULL, NULL, NULL} |
}; |
#endif |
/branches/dd/uspace/app/bdsh/cmds/modules/cat/cat_def.h |
---|
0,0 → 1,7 |
{ |
"cat", |
"Show the contents of a file", |
&cmd_cat, |
&help_cmd_cat, |
}, |
/branches/dd/uspace/app/bdsh/cmds/modules/cat/cat.c |
---|
0,0 → 1,178 |
/* Copyright (c) 2008, Tim Post <tinkertim@gmail.com> |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions are met: |
* |
* Redistributions of source code must retain the above copyright notice, this |
* list of conditions and the following disclaimer. |
* |
* Redistributions in binary form must reproduce the above copyright notice, |
* this list of conditions and the following disclaimer in the documentation |
* and/or other materials provided with the distribution. |
* |
* Neither the name of the original program's authors nor the names of its |
* contributors may be used to endorse or promote products derived from this |
* software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
* POSSIBILITY OF SUCH DAMAGE. |
*/ |
#include <stdio.h> |
#include <stdlib.h> |
#include <unistd.h> |
#include <getopt.h> |
#include <string.h> |
#include <fcntl.h> |
#include "config.h" |
#include "util.h" |
#include "errors.h" |
#include "entry.h" |
#include "cat.h" |
#include "cmds.h" |
static char *cmdname = "cat"; |
#define CAT_VERSION "0.0.1" |
#define CAT_DEFAULT_BUFLEN 1024 |
static char *cat_oops = "That option is not yet supported\n"; |
static struct option const long_options[] = { |
{ "help", no_argument, 0, 'h' }, |
{ "version", no_argument, 0, 'v' }, |
{ "head", required_argument, 0, 'H' }, |
{ "tail", required_argument, 0, 't' }, |
{ "buffer", required_argument, 0, 'b' }, |
{ "more", no_argument, 0, 'm' }, |
{ 0, 0, 0, 0 } |
}; |
/* Dispays help for cat in various levels */ |
void help_cmd_cat(unsigned int level) |
{ |
if (level == HELP_SHORT) { |
printf("`%s' shows the contents of files\n", cmdname); |
} else { |
help_cmd_cat(HELP_SHORT); |
printf( |
"Usage: %s [options] <file1> [file2] [...]\n" |
"Options:\n" |
" -h, --help A short option summary\n" |
" -v, --version Print version information and exit\n" |
" -H, --head ## Print only the first ## bytes\n" |
" -t, --tail ## Print only the last ## bytes\n" |
" -b, --buffer ## Set the read buffer size to ##\n" |
" -m, --more Pause after each screen full\n" |
"Currently, %s is under development, some options don't work.\n", |
cmdname, cmdname); |
} |
return; |
} |
static unsigned int cat_file(const char *fname, size_t blen) |
{ |
int fd, bytes = 0, count = 0, reads = 0; |
off_t total = 0; |
char *buff = NULL; |
if (-1 == (fd = open(fname, O_RDONLY))) { |
printf("Unable to open %s\n", fname); |
return 1; |
} |
total = lseek(fd, 0, SEEK_END); |
lseek(fd, 0, SEEK_SET); |
if (NULL == (buff = (char *) malloc(blen + 1))) { |
close(fd); |
printf("Unable to allocate enough memory to read %s\n", |
fname); |
return 1; |
} |
do { |
bytes = read(fd, buff, blen); |
if (bytes > 0) { |
count += bytes; |
buff[bytes] = '\0'; |
printf("%s", buff); |
reads++; |
} |
} while (bytes > 0); |
close(fd); |
if (bytes == -1) { |
printf("Error reading %s\n", fname); |
free(buff); |
return 1; |
} |
free(buff); |
return 0; |
} |
/* Main entry point for cat, accepts an array of arguments */ |
int cmd_cat(char **argv) |
{ |
unsigned int argc, i, ret = 0, buffer = 0; |
int c, opt_ind; |
argc = cli_count_args(argv); |
for (c = 0, optind = 0, opt_ind = 0; c != -1;) { |
c = getopt_long(argc, argv, "hvmH:t:b:", long_options, &opt_ind); |
switch (c) { |
case 'h': |
help_cmd_cat(HELP_LONG); |
return CMD_SUCCESS; |
case 'v': |
printf("%s\n", CAT_VERSION); |
return CMD_SUCCESS; |
case 'H': |
printf(cat_oops); |
return CMD_FAILURE; |
case 't': |
printf(cat_oops); |
return CMD_FAILURE; |
case 'b': |
printf(cat_oops); |
break; |
case 'm': |
printf(cat_oops); |
return CMD_FAILURE; |
} |
} |
argc -= optind; |
if (argc < 1) { |
printf("%s - incorrect number of arguments. Try `%s --help'\n", |
cmdname, cmdname); |
return CMD_FAILURE; |
} |
if (buffer <= 0) |
buffer = CAT_DEFAULT_BUFLEN; |
for (i = optind; argv[i] != NULL; i++) |
ret += cat_file(argv[i], buffer); |
if (ret) |
return CMD_FAILURE; |
else |
return CMD_SUCCESS; |
} |
/branches/dd/uspace/app/bdsh/cmds/modules/cat/entry.h |
---|
0,0 → 1,9 |
#ifndef CAT_ENTRY_H |
#define CAT_ENTRY_H |
/* Entry points for the cat command */ |
extern int cmd_cat(char **); |
extern void help_cmd_cat(unsigned int); |
#endif /* CAT_ENTRY_H */ |
/branches/dd/uspace/app/bdsh/cmds/modules/cat/cat.h |
---|
0,0 → 1,9 |
#ifndef CAT_H |
#define CAT_H |
/* Prototypes for the cat command, excluding entry points */ |
static unsigned int cat_file(const char *, size_t); |
#endif /* CAT_H */ |
/branches/dd/uspace/app/bdsh/cmds/modules/help/help.c |
---|
0,0 → 1,158 |
/* Copyright (c) 2008, Tim Post <tinkertim@gmail.com> |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions are met: |
* |
* Redistributions of source code must retain the above copyright notice, this |
* list of conditions and the following disclaimer. |
* |
* Redistributions in binary form must reproduce the above copyright notice, |
* this list of conditions and the following disclaimer in the documentation |
* and/or other materials provided with the distribution. |
* |
* Neither the name of the original program's authors nor the names of its |
* contributors may be used to endorse or promote products derived from this |
* software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
* POSSIBILITY OF SUCH DAMAGE. |
*/ |
#include <stdio.h> |
#include <stdlib.h> |
#include <string.h> |
#include "config.h" |
#include "entry.h" |
#include "help.h" |
#include "cmds.h" |
#include "modules.h" |
#include "builtins.h" |
#include "errors.h" |
#include "util.h" |
static char *cmdname = "help"; |
extern const char *progname; |
#define HELP_IS_MODULE 1 |
#define HELP_IS_BUILTIN 0 |
#define HELP_IS_RUBBISH -1 |
volatile int mod_switch = -1; |
/* Just use a pointer here, no need for mod_switch */ |
static int is_mod_or_builtin(char *cmd) |
{ |
int rc = HELP_IS_RUBBISH; |
rc = is_builtin(cmd); |
if (rc > -1) { |
mod_switch = rc; |
return HELP_IS_BUILTIN; |
} |
rc = is_module(cmd); |
if (rc > -1) { |
mod_switch = rc; |
return HELP_IS_MODULE; |
} |
return HELP_IS_RUBBISH; |
} |
void help_cmd_help(unsigned int level) |
{ |
if (level == HELP_SHORT) { |
printf( |
"\n %s [command] <extended>\n" |
" Use help [command] extended for detailed help on [command] " |
", even `help'\n\n", cmdname); |
} else { |
printf( |
"\n `%s' - shows help for commands\n" |
" Examples:\n" |
" %s [command] Show help for [command]\n" |
" %s [command] extended Show extended help for [command]\n" |
"\n If no argument is given to %s, a list of commands are shown\n\n", |
cmdname, cmdname, cmdname, cmdname); |
} |
return; |
} |
int cmd_help(char *argv[]) |
{ |
module_t *mod; |
builtin_t *cmd; |
unsigned int i = 0; |
int rc = 0; |
int argc; |
int level = HELP_SHORT; |
argc = cli_count_args(argv); |
if (argc > 3) { |
printf("\nToo many arguments to `%s', try:\n", cmdname); |
help_cmd_help(HELP_SHORT); |
return CMD_FAILURE; |
} |
if (argc == 3) { |
if (!strcmp("extended", argv[2])) |
level = HELP_LONG; |
else |
level = HELP_SHORT; |
} |
if (argc > 1) { |
rc = is_mod_or_builtin(argv[1]); |
switch (rc) { |
case HELP_IS_RUBBISH: |
printf("Invalid command %s\n", argv[1]); |
return CMD_FAILURE; |
case HELP_IS_MODULE: |
help_module(mod_switch, level); |
return CMD_SUCCESS; |
case HELP_IS_BUILTIN: |
help_builtin(mod_switch, level); |
return CMD_SUCCESS; |
} |
} |
printf("\n Available commands are:\n"); |
printf(" ------------------------------------------------------------\n"); |
/* First, show a list of built in commands that are available in this mode */ |
for (cmd = builtins; cmd->name != NULL; cmd++, i++) { |
if (is_builtin_alias(cmd->name)) |
printf(" %-16s\tAlias for `%s'\n", cmd->name, |
alias_for_builtin(cmd->name)); |
else |
printf(" %-16s\t%s\n", cmd->name, cmd->desc); |
} |
i = 0; |
/* Now, show a list of module commands that are available in this mode */ |
for (mod = modules; mod->name != NULL; mod++, i++) { |
if (is_module_alias(mod->name)) |
printf(" %-16s\tAlias for `%s'\n", mod->name, |
alias_for_module(mod->name)); |
else |
printf(" %-16s\t%s\n", mod->name, mod->desc); |
} |
printf("\n Try %s %s for more information on how `%s' works.\n\n", |
cmdname, cmdname, cmdname); |
return CMD_SUCCESS; |
} |
/branches/dd/uspace/app/bdsh/cmds/modules/help/help_def.h |
---|
0,0 → 1,6 |
{ |
"help", |
"Show help for commands", |
&cmd_help, |
&help_cmd_help, |
}, |
/branches/dd/uspace/app/bdsh/cmds/modules/help/entry.h |
---|
0,0 → 1,8 |
#ifndef HELP_ENTRY_H_ |
#define HELP_ENTRY_H_ |
/* Entry points for the help command */ |
extern void help_cmd_help(unsigned int); |
extern int cmd_help(char *[]); |
#endif |
/branches/dd/uspace/app/bdsh/cmds/modules/help/help.h |
---|
0,0 → 1,7 |
#ifndef HELP_H |
#define HELP_H |
/* Prototypes for the help command (excluding entry points) */ |
static int is_mod_or_builtin(char *); |
#endif |
/branches/dd/uspace/app/bdsh/cmds/modules/sleep/sleep_def.h |
---|
0,0 → 1,7 |
{ |
"sleep", |
"Pause for given time interval (in seconds)", |
&cmd_sleep, |
&help_cmd_sleep, |
}, |
/branches/dd/uspace/app/bdsh/cmds/modules/sleep/entry.h |
---|
0,0 → 1,9 |
#ifndef SLEEP_ENTRY_H |
#define SLEEP_ENTRY_H |
/* Entry points for the sleep command */ |
extern int cmd_sleep(char **); |
extern void help_cmd_sleep(unsigned int); |
#endif /* SLEEP_ENTRY_H */ |
/branches/dd/uspace/app/bdsh/cmds/modules/sleep/sleep.c |
---|
0,0 → 1,73 |
/* Copyright (c) 2008, Tim Post <tinkertim@gmail.com> |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions are met: |
* |
* Redistributions of source code must retain the above copyright notice, this |
* list of conditions and the following disclaimer. |
* |
* Redistributions in binary form must reproduce the above copyright notice, |
* this list of conditions and the following disclaimer in the documentation |
* and/or other materials provided with the distribution. |
* |
* Neither the name of the original program's authors nor the names of its |
* contributors may be used to endorse or promote products derived from this |
* software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
* POSSIBILITY OF SUCH DAMAGE. |
*/ |
#include <stdio.h> |
#include <stdlib.h> |
#include "config.h" |
#include "util.h" |
#include "errors.h" |
#include "entry.h" |
#include "sleep.h" |
#include "cmds.h" |
static char *cmdname = "sleep"; |
/* Dispays help for sleep in various levels */ |
void help_cmd_sleep(unsigned int level) |
{ |
printf("This is the %s help for '%s'.\n", |
level ? EXT_HELP : SHORT_HELP, cmdname); |
return; |
} |
/* Main entry point for sleep, accepts an array of arguments */ |
int cmd_sleep(char **argv) |
{ |
unsigned int argc; |
unsigned int i; |
/* Count the arguments */ |
for (argc = 0; argv[argc] != NULL; argc ++); |
printf("%s %s\n", TEST_ANNOUNCE, cmdname); |
printf("%d arguments passed to %s", argc - 1, cmdname); |
if (argc < 2) { |
printf("\n"); |
return CMD_SUCCESS; |
} |
printf(":\n"); |
for (i = 1; i < argc; i++) |
printf("[%d] -> %s\n", i, argv[i]); |
return CMD_SUCCESS; |
} |
/branches/dd/uspace/app/bdsh/cmds/modules/sleep/sleep.h |
---|
0,0 → 1,8 |
#ifndef SLEEP_H |
#define SLEEP_H |
/* Prototypes for the sleep command, excluding entry points */ |
#endif /* SLEEP_H */ |
/branches/dd/uspace/app/bdsh/cmds/modules/pwd/pwd_def.h |
---|
0,0 → 1,6 |
{ |
"pwd", |
"Prints the current working directory", |
&cmd_pwd, |
&help_cmd_pwd, |
}, |
/branches/dd/uspace/app/bdsh/cmds/modules/pwd/entry.h |
---|
0,0 → 1,12 |
#ifndef PWD_ENTRY_H |
#define PWD_ENTRY_H |
#include "scli.h" |
/* Entry points for the pwd command */ |
extern void help_cmd_pwd(unsigned int); |
extern int cmd_pwd(char **); |
#endif |
/branches/dd/uspace/app/bdsh/cmds/modules/pwd/pwd.c |
---|
0,0 → 1,71 |
/* Copyright (c) 2008, Tim Post <tinkertim@gmail.com> |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions are met: |
* |
* Redistributions of source code must retain the above copyright notice, this |
* list of conditions and the following disclaimer. |
* |
* Redistributions in binary form must reproduce the above copyright notice, |
* this list of conditions and the following disclaimer in the documentation |
* and/or other materials provided with the distribution. |
* |
* Neither the name of the original program's authors nor the names of its |
* contributors may be used to endorse or promote products derived from this |
* software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
* POSSIBILITY OF SUCH DAMAGE. |
*/ |
#include <stdio.h> |
#include <stdlib.h> |
#include "config.h" |
#include "errors.h" |
#include "entry.h" |
#include "cmds.h" |
#include "pwd.h" |
static char * cmdname = "pwd"; |
void help_cmd_pwd(unsigned int level) |
{ |
printf("`%s' prints your current working directory.\n", cmdname); |
return; |
} |
int cmd_pwd(char *argv[]) |
{ |
char *buff; |
buff = (char *) malloc(PATH_MAX); |
if (NULL == buff) { |
cli_error(CL_ENOMEM, "%s:", cmdname); |
return CMD_FAILURE; |
} |
memset(buff, 0, sizeof(buff)); |
getcwd(buff, PATH_MAX); |
if (! buff) { |
cli_error(CL_EFAIL, |
"Unable to determine the current working directory"); |
free(buff); |
return CMD_FAILURE; |
} else { |
printf("%s\n", buff); |
free(buff); |
return CMD_SUCCESS; |
} |
} |
/branches/dd/uspace/app/bdsh/cmds/modules/pwd/pwd.h |
---|
0,0 → 1,6 |
#ifndef PWD_H_ |
#define PWD_H_ |
/* Prototypes for the pwd command (excluding entry points) */ |
#endif |
/branches/dd/uspace/app/bdsh/cmds/modules/module_aliases.h |
---|
0,0 → 1,18 |
#ifndef MODULE_ALIASES_H |
#define MODULE_ALIASES_H |
/* Modules that declare multiple names for themselves but use the |
* same entry functions are aliases. This array helps to determine if |
* a module is an alias, as such it can be invoked differently. |
* format is alias , real_name */ |
/* So far, this is only used in the help display but could be used to |
* handle a module differently even prior to reaching its entry code. |
* For instance, 'exit' could behave differently than 'quit', prior to |
* the entry point being reached. */ |
char *mod_aliases[] = { |
NULL, NULL |
}; |
#endif |
/branches/dd/uspace/app/bdsh/cmds/modules/README |
---|
0,0 → 1,15 |
Modules are commands or full programs (anything can be made into a module |
that can return int type) should go here. Note, modules do not (can not) |
update or read cliuser_t. |
Stuff that needs to write to the user structures contained in scli.h should |
be made as built-in commands, not modules, but there are very few times when |
you would want to do that. |
See the README file in the bdsh root directory for a quick overview of how to |
write a new command, or convert an existig stand-alone program into a module |
for BDSH. |