shellutils.h

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#ifndef SHELLUTILS_H
#define SHELLUTILS_H


#include <limits.h>
#include <stdbool.h>
#include <sys/types.h>


#if (defined ARG_MAX && ARG_MAX <= 1048576)
        #define MAX_CMDLINE_LEN ARG_MAX
#else
        #define MAX_CMDLINE_LEN 1048576
#endif


typedef enum {
        PS_RUNNING,   
        PS_STOPPED,   
        PS_TERMINATED 
} ProcState;

typedef struct {
        pid_t     pid;        
        char     *cmdLine;    
        bool      background; 
        ProcState state;      
} ProcInfo;

typedef struct {
        char *inFile;    
        char *outFile;   
        bool background; 
        const char *parseError; 
        char *cmdLine;   
        char **argv;     
} ShCommand;


void shPrompt(void);

ShCommand *shParseCmdLine(char cmdLine[]);

int shPrintProcState(const ProcInfo *info);


#endif /* SHELLUTILS_H */