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examples/fileman.c: Reindent to project coding style
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This commit is contained in:
Joachim Nilsson
parent
8e34e4e417
commit
8566eb8384
@ -5,7 +5,7 @@
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NOTE: this was taken from the GNU Readline documentation and ported
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to libedit. A command to output the history list was added.
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*/
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*/
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#include <stdio.h>
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#include <sys/types.h>
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@ -21,18 +21,18 @@
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#include "editline.h"
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void * xmalloc (size_t size);
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void too_dangerous (char *caller);
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void initialize_readline ();
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int execute_line (char *line);
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int valid_argument (char *caller, char *arg);
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void *xmalloc(size_t size);
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void too_dangerous(char *caller);
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void initialize_readline();
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int execute_line(char *line);
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int valid_argument(char *caller, char *arg);
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typedef int rl_icpfunc_t (char *);
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typedef int rl_icpfunc_t(char *);
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/* The names of functions that actually do the manipulation. */
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int com_list (char *);
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int com_view (char *);
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int com_history (char *);
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int com_list(char *);
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int com_view(char *);
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int com_history(char *);
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int com_rename(char *);
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int com_stat(char *);
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int com_pwd(char *);
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@ -45,30 +45,30 @@ int com_quit(char *);
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can understand. */
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typedef struct {
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char *name; /* User printable name of the function. */
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rl_icpfunc_t *func; /* Function to call to do the job. */
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char *doc; /* Documentation for this function. */
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char *name; /* User printable name of the function. */
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rl_icpfunc_t *func; /* Function to call to do the job. */
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char *doc; /* Documentation for this function. */
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} COMMAND;
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COMMAND commands[] = {
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{ "cd", com_cd, "Change to directory DIR" },
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{ "delete", com_delete, "Delete FILE" },
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{ "help", com_help, "Display this text" },
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{ "?", com_help, "Synonym for `help'" },
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{ "list", com_list, "List files in DIR" },
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{ "ls", com_list, "Synonym for `list'" },
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{ "pwd", com_pwd, "Print the current working directory" },
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{ "quit", com_quit, "Quit using Fileman" },
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{ "rename", com_rename, "Rename FILE to NEWNAME" },
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{ "stat", com_stat, "Print out statistics on FILE" },
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{ "view", com_view, "View the contents of FILE" },
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{ "history", com_history, "List editline history" },
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{ (char *)NULL, (rl_icpfunc_t *)NULL, (char *)NULL }
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{"cd", com_cd, "Change to directory DIR"},
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{"delete", com_delete, "Delete FILE"},
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{"help", com_help, "Display this text"},
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{"?", com_help, "Synonym for `help'"},
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{"list", com_list, "List files in DIR"},
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{"ls", com_list, "Synonym for `list'"},
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{"pwd", com_pwd, "Print the current working directory"},
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{"quit", com_quit, "Quit using Fileman"},
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{"rename", com_rename, "Rename FILE to NEWNAME"},
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{"stat", com_stat, "Print out statistics on FILE"},
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{"view", com_view, "View the contents of FILE"},
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{"history", com_history, "List editline history"},
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{(char *)NULL, (rl_icpfunc_t *) NULL, (char *)NULL}
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};
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/* Forward declarations. */
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char *stripwhite ();
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COMMAND *find_command ();
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char *stripwhite();
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COMMAND *find_command();
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/* The name of this program, as taken from argv[0]. */
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char *progname;
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@ -76,135 +76,127 @@ char *progname;
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/* When non-zero, this means the user is done using this program. */
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int done;
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char *
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dupstr (char* s)
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char *dupstr(char *s)
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{
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char *r;
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char *r;
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r = xmalloc (strlen (s) + 1);
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strcpy (r, s);
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return (r);
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r = xmalloc(strlen(s) + 1);
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strcpy(r, s);
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return (r);
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}
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int
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main (int argc __attribute__((__unused__)), char **argv)
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int main(int argc __attribute__ ((__unused__)), char **argv)
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{
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char *line, *s;
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char *line, *s;
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progname = argv[0];
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progname = argv[0];
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setlocale(LC_CTYPE, "");
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setlocale(LC_CTYPE, "");
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initialize_readline(); /* Bind our completer. */
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initialize_readline(); /* Bind our completer. */
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/* Loop reading and executing lines until the user quits. */
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for ( ; done == 0; )
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{
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line = readline ("FileMan: ");
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/* Loop reading and executing lines until the user quits. */
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for (; done == 0;) {
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line = readline("FileMan: ");
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if (!line)
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break;
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if (!line)
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break;
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/* Remove leading and trailing whitespace from the line.
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Then, if there is anything left, add it to the history list
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and execute it. */
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s = stripwhite(line);
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/* Remove leading and trailing whitespace from the line.
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Then, if there is anything left, add it to the history list
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and execute it. */
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s = stripwhite(line);
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#if 0
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if (*s) {
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if (*s) {
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char* expansion;
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int result;
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char *expansion;
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int result;
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result = history_expand(s, &expansion);
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if (result < 0 || result == 2) {
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fprintf(stderr, "%s\n", expansion);
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} else {
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add_history(expansion);
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execute_line(expansion);
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}
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free(expansion);
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}
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result = history_expand(s, &expansion);
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if (result < 0 || result == 2) {
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fprintf(stderr, "%s\n", expansion);
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} else {
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add_history(expansion);
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execute_line(expansion);
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}
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free(expansion);
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}
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#else
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execute_line(s);
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execute_line(s);
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#endif
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free(line);
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}
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exit (0);
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free(line);
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}
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exit(0);
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return 0;
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return 0;
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}
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/* Execute a command line. */
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int
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execute_line (char *line)
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int execute_line(char *line)
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{
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register int i;
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COMMAND *command;
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char *word;
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register int i;
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COMMAND *command;
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char *word;
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/* Isolate the command word. */
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i = 0;
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while (line[i] && isspace (line[i]))
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i++;
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word = line + i;
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/* Isolate the command word. */
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i = 0;
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while (line[i] && isspace(line[i]))
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i++;
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word = line + i;
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while (line[i] && !isspace (line[i]))
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i++;
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while (line[i] && !isspace(line[i]))
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i++;
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if (line[i])
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line[i++] = '\0';
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if (line[i])
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line[i++] = '\0';
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command = find_command (word);
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command = find_command(word);
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if (!command)
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{
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fprintf (stderr, "%s: No such command for FileMan.\n", word);
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return (-1);
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}
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if (!command) {
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fprintf(stderr, "%s: No such command for FileMan.\n", word);
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return (-1);
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}
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/* Get argument to command, if any. */
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while (isspace (line[i]))
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i++;
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/* Get argument to command, if any. */
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while (isspace(line[i]))
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i++;
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word = line + i;
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word = line + i;
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/* Call the function. */
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return ((*(command->func)) (word));
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/* Call the function. */
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return ((*(command->func)) (word));
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}
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/* Look up NAME as the name of a command, and return a pointer to that
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command. Return a NULL pointer if NAME isn't a command name. */
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COMMAND *
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find_command (char *name)
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COMMAND *find_command(char *name)
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{
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register int i;
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register int i;
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for (i = 0; commands[i].name; i++)
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if (strcmp (name, commands[i].name) == 0)
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return (&commands[i]);
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for (i = 0; commands[i].name; i++)
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if (strcmp(name, commands[i].name) == 0)
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return (&commands[i]);
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return ((COMMAND *)NULL);
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return ((COMMAND *) NULL);
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}
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/* Strip whitespace from the start and end of STRING. Return a pointer
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into STRING. */
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char *
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stripwhite (char *string)
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char *stripwhite(char *string)
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{
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register char *s, *t;
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register char *s, *t;
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for (s = string; isspace (*s); s++)
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;
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for (s = string; isspace(*s); s++) ;
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if (*s == 0)
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return (s);
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if (*s == 0)
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return (s);
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t = s + strlen (s) - 1;
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while (t > s && isspace (*t))
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t--;
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*++t = '\0';
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t = s + strlen(s) - 1;
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while (t > s && isspace(*t))
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t--;
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*++t = '\0';
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return s;
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return s;
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}
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/* **************************************************************** */
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@ -219,14 +211,13 @@ char **fileman_completion(const char *, int, int);
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/* Tell the GNU Readline library how to complete. We want to try to
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complete on command names if this is the first word in the line, or
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on filenames if not. */
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void
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initialize_readline ()
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void initialize_readline()
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{
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/* Allow conditional parsing of the ~/.inputrc file. */
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rl_readline_name = "FileMan";
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/* Allow conditional parsing of the ~/.inputrc file. */
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rl_readline_name = "FileMan";
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/* Tell the completer that we want a crack first. */
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rl_attempted_completion_function = fileman_completion;
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/* Tell the completer that we want a crack first. */
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rl_attempted_completion_function = fileman_completion;
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}
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/* Attempt to complete on the contents of TEXT. START and END
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@ -234,54 +225,51 @@ initialize_readline ()
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complete. TEXT is the word to complete. We can use the entire
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contents of rl_line_buffer in case we want to do some simple
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parsing. Returnthe array of matches, or NULL if there aren't any. */
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char **
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fileman_completion (const char* text, int start, int end __attribute__((__unused__)))
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char **fileman_completion(const char *text, int start, int end
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__attribute__ ((__unused__)))
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{
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char **matches;
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char **matches;
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matches = (char **)NULL;
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matches = (char **)NULL;
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/* If this word is at the start of the line, then it is a command
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to complete. Otherwise it is the name of a file in the current
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directory. */
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if (start == 0)
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matches = rl_completion_matches (text, command_generator);
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/* If this word is at the start of the line, then it is a command
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to complete. Otherwise it is the name of a file in the current
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directory. */
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if (start == 0)
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matches = rl_completion_matches(text, command_generator);
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return (matches);
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return (matches);
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}
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/* Generator function for command completion. STATE lets us
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know whether to start from scratch; without any state
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(i.e. STATE == 0), then we start at the top of the list. */
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char *
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command_generator (text, state)
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const char *text;
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int state;
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char *command_generator(text, state)
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const char *text;
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int state;
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{
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static int list_index, len;
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char *name;
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static int list_index, len;
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char *name;
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/* If this is a new word to complete, initialize now. This
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includes saving the length of TEXT for efficiency, and
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initializing the index variable to 0. */
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if (!state)
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{
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list_index = 0;
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len = strlen (text);
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}
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/* If this is a new word to complete, initialize now. This
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includes saving the length of TEXT for efficiency, and
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initializing the index variable to 0. */
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if (!state) {
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list_index = 0;
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len = strlen(text);
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}
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/* Return the next name which partially matches from the
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command list. */
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while ((name = commands[list_index].name))
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{
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list_index++;
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/* Return the next name which partially matches from the
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command list. */
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while ((name = commands[list_index].name)) {
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list_index++;
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if (strncmp (name, text, len) == 0)
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return (dupstr(name));
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}
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if (strncmp(name, text, len) == 0)
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return (dupstr(name));
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}
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/* If no names matched, then return NULL. */
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return ((char *)NULL);
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/* If no names matched, then return NULL. */
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return ((char *)NULL);
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}
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/* **************************************************************** */
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@ -295,193 +283,173 @@ command_generator (text, state)
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static char syscom[1024];
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/* List the file(s) named in arg. */
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int
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com_list (char *arg)
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int com_list(char *arg)
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{
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if (!arg)
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arg = "";
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if (!arg)
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arg = "";
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sprintf (syscom, "ls -FClg %s", arg);
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return (system (syscom));
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sprintf(syscom, "ls -FClg %s", arg);
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return (system(syscom));
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}
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int
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com_view (char *arg)
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int com_view(char *arg)
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{
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if (!valid_argument ("view", arg))
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return 1;
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if (!valid_argument("view", arg))
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return 1;
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sprintf (syscom, "more %s", arg);
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return (system (syscom));
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sprintf(syscom, "more %s", arg);
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return (system(syscom));
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}
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int
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com_history(char* arg __attribute__((__unused__)))
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int com_history(char *arg __attribute__ ((__unused__)))
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{
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const char *he;
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const char *he;
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/* rewind history */
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while (el_prev_hist())
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;
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/* rewind history */
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while (el_prev_hist()) ;
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for (he = el_next_hist(); he != NULL; he = el_next_hist())
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printf("%s\n", he);
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for (he = el_next_hist(); he != NULL; he = el_next_hist())
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printf("%s\n", he);
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return 0;
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return 0;
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}
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int
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com_rename (char *arg __attribute__((__unused__)))
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int com_rename(char *arg __attribute__ ((__unused__)))
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{
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too_dangerous ("rename");
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return (1);
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too_dangerous("rename");
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return (1);
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}
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int
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com_stat (char *arg)
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int com_stat(char *arg)
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{
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struct stat finfo;
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struct stat finfo;
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if (!valid_argument ("stat", arg))
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return (1);
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if (!valid_argument("stat", arg))
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return (1);
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if (stat (arg, &finfo) == -1)
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{
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perror (arg);
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return (1);
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}
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if (stat(arg, &finfo) == -1) {
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perror(arg);
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return (1);
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}
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printf ("Statistics for `%s':\n", arg);
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printf("Statistics for `%s':\n", arg);
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printf ("%s has %ld link%s, and is %lld byte%s in length.\n", arg,
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(long) finfo.st_nlink,
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(finfo.st_nlink == 1) ? "" : "s",
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(long long) finfo.st_size,
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(finfo.st_size == 1) ? "" : "s");
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printf ("Inode Last Change at: %s", ctime (&finfo.st_ctime));
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printf (" Last access at: %s", ctime (&finfo.st_atime));
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printf (" Last modified at: %s", ctime (&finfo.st_mtime));
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return (0);
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printf("%s has %ld link%s, and is %lld byte%s in length.\n", arg,
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(long)finfo.st_nlink,
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(finfo.st_nlink == 1) ? "" : "s",
|
||||
(long long)finfo.st_size, (finfo.st_size == 1) ? "" : "s");
|
||||
printf("Inode Last Change at: %s", ctime(&finfo.st_ctime));
|
||||
printf(" Last access at: %s", ctime(&finfo.st_atime));
|
||||
printf(" Last modified at: %s", ctime(&finfo.st_mtime));
|
||||
return (0);
|
||||
}
|
||||
|
||||
int
|
||||
com_delete (char *arg __attribute__((__unused__)))
|
||||
int com_delete(char *arg __attribute__ ((__unused__)))
|
||||
{
|
||||
too_dangerous ("delete");
|
||||
return (1);
|
||||
too_dangerous("delete");
|
||||
return (1);
|
||||
}
|
||||
|
||||
/* Print out help for ARG, or for all of the commands if ARG is
|
||||
not present. */
|
||||
int
|
||||
com_help (char *arg)
|
||||
int com_help(char *arg)
|
||||
{
|
||||
register int i;
|
||||
int printed = 0;
|
||||
register int i;
|
||||
int printed = 0;
|
||||
|
||||
for (i = 0; commands[i].name; i++)
|
||||
{
|
||||
if (!*arg || (strcmp (arg, commands[i].name) == 0))
|
||||
{
|
||||
printf ("%s\t\t%s.\n", commands[i].name, commands[i].doc);
|
||||
printed++;
|
||||
}
|
||||
}
|
||||
for (i = 0; commands[i].name; i++) {
|
||||
if (!*arg || (strcmp(arg, commands[i].name) == 0)) {
|
||||
printf("%s\t\t%s.\n", commands[i].name,
|
||||
commands[i].doc);
|
||||
printed++;
|
||||
}
|
||||
}
|
||||
|
||||
if (!printed)
|
||||
{
|
||||
printf ("No commands match `%s'. Possibilties are:\n", arg);
|
||||
if (!printed) {
|
||||
printf("No commands match `%s'. Possibilties are:\n", arg);
|
||||
|
||||
for (i = 0; commands[i].name; i++)
|
||||
{
|
||||
/* Print in six columns. */
|
||||
if (printed == 6)
|
||||
{
|
||||
printed = 0;
|
||||
printf ("\n");
|
||||
}
|
||||
for (i = 0; commands[i].name; i++) {
|
||||
/* Print in six columns. */
|
||||
if (printed == 6) {
|
||||
printed = 0;
|
||||
printf("\n");
|
||||
}
|
||||
|
||||
printf ("%s\t", commands[i].name);
|
||||
printed++;
|
||||
}
|
||||
printf("%s\t", commands[i].name);
|
||||
printed++;
|
||||
}
|
||||
|
||||
if (printed)
|
||||
printf ("\n");
|
||||
}
|
||||
return (0);
|
||||
if (printed)
|
||||
printf("\n");
|
||||
}
|
||||
return (0);
|
||||
}
|
||||
|
||||
/* Change to the directory ARG. */
|
||||
int
|
||||
com_cd (char *arg)
|
||||
int com_cd(char *arg)
|
||||
{
|
||||
if (chdir (arg) == -1)
|
||||
{
|
||||
perror (arg);
|
||||
return 1;
|
||||
}
|
||||
if (chdir(arg) == -1) {
|
||||
perror(arg);
|
||||
return 1;
|
||||
}
|
||||
|
||||
com_pwd ("");
|
||||
return (0);
|
||||
com_pwd("");
|
||||
return (0);
|
||||
}
|
||||
|
||||
/* Print out the current working directory. */
|
||||
int
|
||||
com_pwd (char* ignore __attribute__((__unused__)))
|
||||
int com_pwd(char *ignore __attribute__ ((__unused__)))
|
||||
{
|
||||
char dir[1024], *s;
|
||||
char dir[1024], *s;
|
||||
|
||||
s = (char*)getcwd(dir, sizeof(dir) - 1);
|
||||
if (s == 0)
|
||||
{
|
||||
printf ("Error getting pwd: %s\n", dir);
|
||||
return 1;
|
||||
}
|
||||
s = (char *)getcwd(dir, sizeof(dir) - 1);
|
||||
if (s == 0) {
|
||||
printf("Error getting pwd: %s\n", dir);
|
||||
return 1;
|
||||
}
|
||||
|
||||
printf ("Current directory is %s\n", dir);
|
||||
return 0;
|
||||
printf("Current directory is %s\n", dir);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* The user wishes to quit using this program. Just set DONE
|
||||
non-zero. */
|
||||
int
|
||||
com_quit (char *arg __attribute__((__unused__)))
|
||||
int com_quit(char *arg __attribute__ ((__unused__)))
|
||||
{
|
||||
done = 1;
|
||||
return (0);
|
||||
done = 1;
|
||||
return (0);
|
||||
}
|
||||
|
||||
/* Function which tells you that you can't do this. */
|
||||
void
|
||||
too_dangerous (char *caller)
|
||||
void too_dangerous(char *caller)
|
||||
{
|
||||
fprintf (stderr,
|
||||
"%s: Too dangerous for me to distribute.\n",
|
||||
caller);
|
||||
fprintf (stderr, "Write it yourself.\n");
|
||||
fprintf(stderr, "%s: Too dangerous for me to distribute.\n", caller);
|
||||
fprintf(stderr, "Write it yourself.\n");
|
||||
}
|
||||
|
||||
/* Return non-zero if ARG is a valid argument for CALLER,
|
||||
else print an error message and return zero. */
|
||||
int
|
||||
valid_argument (char *caller, char *arg)
|
||||
int valid_argument(char *caller, char *arg)
|
||||
{
|
||||
if (!arg || !*arg)
|
||||
{
|
||||
fprintf (stderr, "%s: Argument required.\n", caller);
|
||||
return (0);
|
||||
}
|
||||
if (!arg || !*arg) {
|
||||
fprintf(stderr, "%s: Argument required.\n", caller);
|
||||
return (0);
|
||||
}
|
||||
|
||||
return (1);
|
||||
return (1);
|
||||
}
|
||||
|
||||
void *
|
||||
xmalloc (size_t size)
|
||||
void *xmalloc(size_t size)
|
||||
{
|
||||
register void *value = (void*)malloc(size);
|
||||
if (value == 0)
|
||||
fprintf(stderr, "virtual memory exhausted");
|
||||
return value;
|
||||
register void *value = (void *)malloc(size);
|
||||
if (value == 0)
|
||||
fprintf(stderr, "virtual memory exhausted");
|
||||
return value;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Local Variables:
|
||||
* c-file-style: "k&r"
|
||||
* c-basic-offset: 4
|
||||
* End:
|
||||
*/
|
||||
|
||||
Loading…
Reference in New Issue
Block a user