8d5ccfeb82
- "is t_call.argv ended by NULL?" - "does it return the good path if there is several possibilities?"
90 lines
3 KiB
C
90 lines
3 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* include.h :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: mcolonna <marvin@42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2024/04/23 14:15:12 by mcolonna #+# #+# */
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/* Updated: 2024/04/29 15:56:26 by mcolonna ### ########.fr */
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/* */
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/* ************************************************************************** */
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#ifndef INCLUDE_H
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# define INCLUDE_H
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# include <stdbool.h>
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# include <stdio.h>
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# include <errno.h>
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# include <string.h>
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# include <sys/types.h>
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# include <unistd.h>
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# include <fcntl.h>
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# include <stdlib.h>
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# include <strings.h>
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# include <sys/wait.h>
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# include "libft.h"
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# include "libtf.h"
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///// ASK COMMAND /////
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// Show the prompt and ask a command to the user.
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// Return the command.
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const char *ask_command(t_memclass mc);
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///// PARSE_COMMAND /////
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// Represents a call to a program (the program name and its arguments)
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typedef struct s_call
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{
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const char *program; // path of the program to call.
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int argc; // number of arguments given
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char *const *argv; // arguments given (ended by NULL)
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// (argc and argv must include the program name)
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} t_call;
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// Represents a command given by the user.
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typedef struct s_command
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{
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int error; // 0 if parse_command() succeded, error status if not
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const t_call *calls; // all calls to programs (ended by .program == NULL)
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int input_fd; // fd to use with '<' redirection (0 by default)
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int output_fd; // fd to use with '>' redirection (1 by default)
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} t_command;
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// Return the t_command representing the command given by the user.
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// If error, return a t_command wth the value .error = true.
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t_command parse_command(const t_memclass mc, const char *command);
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///// EXECUTE COMMAND /////
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// Execute the command given. Return the exit status.
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int execute_command(t_memclass mc, t_command command,
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char *const envp[]);
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///// ERROR /////
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// Call to show an error.
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// If msg == "errno", use perror()
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void minishell_error(const char *msg);
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// Call perror() and exit the program.
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void fatal_error(const char *msg);
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///// PATH /////
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// Get the PATH values.
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// Return a list of strings ended by NULL.
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char **get_path(char *const envp[]);
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// Search the program in $PATH.
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// Returns the path of the program to use, or NULL if there is none.
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// If there is several possibilities, it returns the one from the first path
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// given in $PATH.
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const char *search_path(
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const t_memclass mc, const char **path, const char *prog);
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///// MAIN /////
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extern t_memclass g_mc;
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#endif
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