/* command.c */
#include "command_db.h"
-#include <stdlib.h> /* for malloc() */
-#include <stdio.h> /* for FILE typedef, fopen(), fclose(), fgets() */
+#include <stdlib.h> /* for free() */
+#include <stdio.h> /* for FILE typedef, fgets() */
#include <stdint.h> /* for uint8_t */
#include <string.h> /* for strlen(), strtok() */
#include "main.h" /* for World struct */
#include "rexit.h" /* for exit_err() */
-#include "misc.h" /* for textfile_sizes() */
+#include "readwrite.h" /* for textfile_sizes(), try_fopen(), try_fclose() */
+#include "misc.h" /* for try_malloc() */
-/* Build string pointed to by "ch_ptr" from next token delimited by "delim",
- * exit_err() with "err" as error message on malloc() failure.
- */
-static void copy_tokenized_string(struct World * world,
- char ** ch_ptr, char * delim, char * err)
+/* Build string pointed to by "ch_ptr" from next token delimited by "delim". */
+static void copy_tokenized_string(struct World * world, char ** ch_ptr,
+ char * delim)
{
+ char * f_name = "copy_tokenized_string()";
char * dsc_ptr = strtok(NULL, delim);
- * ch_ptr = malloc(strlen(dsc_ptr) + 1);
- exit_err(NULL == * ch_ptr, world, err);
+ * ch_ptr = try_malloc(strlen(dsc_ptr) + 1, world, f_name);
memcpy(* ch_ptr, dsc_ptr, strlen(dsc_ptr) + 1);
}
extern void init_command_db(struct World * world)
{
- char * err = "Trouble in init_cmds() with fopen() on file 'commands'.";
- FILE * file = fopen("config/commands", "r");
- exit_err(NULL == file, world, err);
+ char * f_name = "init_command_db()";
+ char * err_s = "Trouble in init_cmds() with textfile_sizes().";
+
+ char * path = "config/commands";
+ FILE * file = try_fopen(path, "r", world, f_name);
uint16_t lines, linemax;
- textfile_sizes(file, &linemax, &lines);
- err = "Trouble in init_cmds() with malloc().";
- char * line = malloc(linemax);
- exit_err(NULL == line, world, err);
- struct Command * cmds = malloc(lines * sizeof(struct Command));
- exit_err(NULL == line, world, err);
+ exit_err(textfile_sizes(file, &linemax, &lines), world, err_s);
+ char line[linemax + 1];
+
+ struct Command * cmds = try_malloc(lines * sizeof(struct Command),
+ world, f_name);
uint8_t i = 0;
- while (fgets(line, linemax, file))
+ while (fgets(line, linemax + 1, file))
{
cmds[i].id = atoi(strtok(line, " "));
- copy_tokenized_string(world, &cmds[i].dsc_short, " ", err);
- copy_tokenized_string(world, &cmds[i].dsc_long, "\n", err);
+ copy_tokenized_string(world, &cmds[i].dsc_short, " ");
+ copy_tokenized_string(world, &cmds[i].dsc_long, "\n");
i++;
}
- world->cmd_db = malloc(sizeof(struct CommandDB));
+ try_fclose(file, world, f_name);
+
+ world->cmd_db = try_malloc(sizeof(struct CommandDB), world, f_name);
world->cmd_db->cmds = cmds;
world->cmd_db->n = lines;
- err = "Trouble in init_cmds() with fclose() on file 'commands'.";
- exit_err(fclose(file), world, err);
}