CS Operating System Project

#include "mopt.h" #include <stdlib.h> #include "getopt.h" // // Fairleigh Dickinson University // CSCIxxxx <semester><year> // Programming Assignment x // // Description: // // enum {TABLESIZE = 257}; typedef struct { char m[TABLESIZE]; const char * p[TABLESIZE]; int tLen; char oS[2*TABLESIZE]; int oLen; char * pC; } mType; void * initialize() { const int sL = sizeof(mType); void * mP = calloc(sL,1); return mP; } static void addOptP(const char c, const char * const s, void * p) { if (optExist(c,p) != 1) { mType * const mP = (mType * const)p; int i = mP->tLen; mP->m[i] = c; mP->p[i++] = s; mP->tLen = i; } } const int setO(const char c, const int e, void * p) { mType * const mP = (mType * const)p; int i = mP->oLen; mP->oS[i++] = c; if (e) mP->oS[i++] = ':'; mP->oLen = i; return 1; } const char * const getArg(const char c, void * p) { const int i = optExist(c,p); if (i>=0) { mType * const mP =(mType * const)p; const char * pA = mP->p[i]; return pA; } return 0; } const sType parse ( const int argc, const char * const * const argv, void *p ) { extern int optind; extern int optopt; extern char * optarg; extern int opterr; mType * const mP = (mType * const)p; const char * const optstring = mP->oS; char c; // // Set opterr // to 0 to prevent // getopt from // printing // messages. // opterr = 0; c = getopt(argc,argv,optstring); do { if (c=='?') return MOPT_ERROR; if (optExist(c,p) != -1) return MOPT_ERROR; addOptP (c,optarg,mP); c = getopt(argc, argv, optstring); } while (c+1); mP->pC = (char *)argv[optind]; return MOPT_PARSEOK; } const char * const aVI(void * p) { mType * const mP = (mType * const)p; const char * const t = mP->pC; return t; } const int optExist(const char c, void * p) { if (p) { const mType * const mP = (mType*)p; const char * r = (const char *)mP->m; int i = 0; while(r[i]) if (c==r[i]) return i; else ++i; } return -1; } const sType moptFree(void * p) { if (p) free(p); p = 0; return MOPT_CLEAR; }