/*
* Copyright (c) 2011 Petr Koupy
* 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.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 <stdbool.h>
#include <stddef.h>
#include <errno.h>
#include <str.h>
#include "config.h"
#include "util.h"
#include "errors.h"
#include "entry.h"
#include "batch.h"
#include "cmds.h"
#include "input.h"
static const char *cmdname = "batch";
/* Dispays help for batch in various levels */
void help_cmd_batch(unsigned int level)
{
if (level == HELP_SHORT) {
printf(
"\n batch [filename] [-c]\n"
" Issues commands stored in the file.\n"
" Each command must correspond to the single line in the file.\n\n");
} else {
printf(
"\n `batch' - issues a batch of commands\n"
" Issues commands stored in the file. Each command must correspond\n"
" to the single line in the file. Empty lines can be used to visually\n"
" separate groups of commands. There is no support for comments,\n"
" variables, recursion or other programming constructs - the `batch'\n"
" command is indeed very trivial.\n"
" If the filename is followed by -c, execution continues even if some\n"
" of the commands failed.\n\n");
}
return;
}
/** Main entry point for batch, accepts an array of arguments and a
* pointer to the cliuser_t structure
*/
int cmd_batch(char **argv, cliuser_t *usr)
{
unsigned int argc;
bool continue_despite_errors = false;
/* Count the arguments */
argc = 0;
while (argv[argc] != NULL)
argc++;
if (argc < 2) {
printf("%s - no input file provided.\n", cmdname);
return CMD_FAILURE;
}
if (argc > 2) {
if (str_cmp(argv[2], "-c") == 0)
continue_despite_errors = true;
}
errno_t rc = EOK;
FILE *batch = fopen(argv[1], "r");
if (batch == NULL) {
printf("%s - Cannot open file %s\n", cmdname, argv[1]);
return CMD_FAILURE;
} else {
cliuser_t fusr;
fusr.name = usr->name;
fusr.cwd = usr->cwd;
fusr.prompt = usr->prompt;
fusr.line = malloc(INPUT_MAX + 1);
char *cur = fusr.line;
char *end = fusr.line + INPUT_MAX;
int c = fgetc(batch);
while (fusr.line != NULL) {
if (c == '\n' || c == EOF || cur == end) {
*cur = '\0';
if (cur == fusr.line) {
/* skip empty line */
rc = EOK;
free(cur);
} else {
printf(">%s\n", fusr.line);
rc = process_input(&fusr);
/* fusr->line was freed by process_input() */
if ((rc != EOK) && continue_despite_errors) {
/* Mute the error. */
rc = EOK;
}
}
if (rc == 0 && c != EOF) {
fusr.line = malloc(INPUT_MAX + 1);
cur = fusr.line;
end = fusr.line + INPUT_MAX;
} else {
break;
}
} else {
*cur++ = c;
}
c = fgetc(batch);
}
fclose(batch);
}
return CMD_SUCCESS;
}