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Annotation of coherent/f/usr/include.78/misc.h, revision 1.1

1.1     ! root        1: /* (-lgl
        !             2:  *     COHERENT 386 Device Driver Kit release 2.0
        !             3:  *     Copyright (c) 1982, 1992 by Mark Williams Company.
        !             4:  *     All rights reserved. May not be copied without permission.
        !             5:  -lgl) */
        !             6: 
        !             7: /*
        !             8:  * /usr/include/misc.h
        !             9:  * Miscellaneous useful user functions.
        !            10:  * Sugggestions and additions are welcome.
        !            11:  *
        !            12:  * Revised Wed Mar 24 16:44:33 1993 CST
        !            13:  */
        !            14: #ifndef __MISC_H__
        !            15: #define __MISC_H__
        !            16: 
        !            17: #ifndef OFFSETOF
        !            18: 
        !            19: /* Handy defines */
        !            20: #define OFFSETOF(type, mem) (&((char *)((type *)NULL)->m) - NULL)
        !            21: #define ENDOF(x) (((char *)(x))+sizeof(x)) /* end of some thing */
        !            22: #define SETIN(a, b) !((a) & ~(b))      /* a in b */
        !            23: 
        !            24: #ifdef M68000
        !            25: #define ptrdiff(a, b) ((long)a - (long)b)
        !            26: #else
        !            27: #ifdef LARGE
        !            28: #define ptrdiff(a, b) (((((long)a>>16)-((long)b>>16))<<4)+((int)a-(int)b))
        !            29: #else
        !            30: #define ptrdiff(a, b) ((int)a - (int)b)
        !            31: #endif
        !            32: #endif
        !            33: 
        !            34: #include <stdio.h>
        !            35: 
        !            36: /*
        !            37:  * Needed for select()
        !            38:  */
        !            39: struct timeval {
        !            40:        long tv_sec;
        !            41:        long tv_usec;
        !            42: };
        !            43: 
        !            44: #include <sys/param.h>
        !            45: 
        !            46: #if NOFILE <= 32
        !            47: typedef int fd_set;
        !            48: 
        !            49: #define FD_ZERO(fdp)   {*fdp = 0;}
        !            50: #define FD_SET(b,fdp)  (*fdp |= 1 << (b))
        !            51: #define FD_ISSET(b,fdp)        (*fdp & 1 << (b))
        !            52: #define FD_SETSIZE 32
        !            53: #else
        !            54: typedef int fd_set[2];
        !            55: 
        !            56: #define FD_ZERO(fdp)   {(*fdp)[0]=(*fdp)[1]=0;}
        !            57: #define FD_SET(b,fdp)  ((*fdp)[((b)>>5)&1] |= 1 << ((b)&0x1F))
        !            58: #define FD_ISSET(b,fdp)        ((*fdp)[((b)>>5)&1] & 1 << ((b)&0x1F))
        !            59: #define FD_SETSIZE 64
        !            60: #endif
        !            61: /* end of select() support */
        !            62: 
        !            63: extern void fatal();   /* like fprintf(stderr, ...); exit(1); */
        !            64: extern char * getline();/* char * getline(FILE *fp, int *lineNo);
        !            65:                         * gets lines off a file treats # to end of line
        !            66:                         * as comment, discards \ [ \t\n] through end of
        !            67:                         * line to create continuations. */
        !            68: extern usage();                /* like fatal but message starts usage: */
        !            69: extern FILE *xopen();  /* xopen(filename, access); fopen or die */
        !            70: extern char *basename(); /* return the last filename on a path */
        !            71: extern char *pathn();  /* pathn("helpfile", "LIBPATH", ",,\lib", "r");
        !            72:                         * gets full pathname given an filename
        !            73:                         * env var with path, default path and access rights */
        !            74: extern xdump();                /* xdump(ptr, size) hex dumps an area */
        !            75: extern long randl();   /* IEEE random number (random bits) */
        !            76: extern srandl();       /* srandl(unsigned long s1, s2); */
        !            77: extern unsigned short crc16(); /* crc16(char *p) calculate 16 bit crc */
        !            78: extern char *ask();    /* ask(reply, msg);
        !            79:                         * like printf(msg, ...) returns a user reply */
        !            80: extern int yn();       /* like printf(msg, ...) returns yes=1 or no=0 reply */
        !            81: extern char *alloc();  /* get space or die */
        !            82: extern void banner();  /* banner("Done", 3) prints a banner saying
        !            83:                         * Done with 3 spaces infront. */
        !            84: extern int copyd();    /* copyd(FILE *outfile, FILE *infile, long length)
        !            85:                         * Copys infile to outfile for length efficiently.
        !            86:                         * on failure copys all it can read and returns 0.
        !            87:                         * returns 1 on success */
        !            88: extern strcmpl();      /* case insensative strcmp() */
        !            89: extern char *lcase();  /* convert string to lower case */
        !            90: extern char *ucase();  /* convert string to upper case */
        !            91: extern char *newcpy(); /* make a malloced copy of a string */
        !            92: extern char *match();  /* match(s1, pat, fin)
        !            93:                         * finds pat in s1 by pnmatch rules
        !            94:                         * returns start of pattern or NULL
        !            95:                         * places pointer to end in *fin
        !            96:                         */
        !            97: extern char *replace(); /* replace(s1, pat, s3, all, matcher)
        !            98:                         * search s1 for pat and replace by s3.
        !            99:                         * Using matcher which is a pointer to
        !           100:                         * a function that looks externally like match.
        !           101:                         * Returns a new malloced string or NULL
        !           102:                         * does all if all != 0 else first. */
        !           103: extern char * span();  /* span(s1, matcher, fin)
        !           104:                         * matches all chars passing function
        !           105:                         * matcher. Looks like match. */
        !           106: extern char * skip();  /* skip(s1, matcher, fin)
        !           107:                         * matches all chars not passing function
        !           108:                         * matcher. Looks like match. */
        !           109: extern void tocont();  /* Enter NL to continue */
        !           110: extern approx();       /* approx(double a, double b) 1 if == within epsilon */
        !           111: extern double epsilon;
        !           112: extern int is_fs();    /* is_fs(char *special) test if special is filesystem */
        !           113: extern void vinit();   /* vinit(char * workFileName, unsigned storAmt);
        !           114:                         * Init the software virtual system telling it how much
        !           115:                         * storage it may use for buffers */
        !           116: extern void vshutdown(); /* Shut down the virtual system and free its storage */
        !           117: extern unsigned vopen(); /* vopen(long amt); Set up a virtual object amt
        !           118:                          * bytes long and return a vid number. */
        !           119: extern char *vfind();  /* vfind(int vid, long disp, int dirty);
        !           120:                         * Point to a byte disp bytes into vid, set the
        !           121:                         * dirty bit if dirty == 1 */
        !           122: extern char *trim();   /* trim(char *s); remove trailing whitespace from s */
        !           123: extern void splitter(); /* splitter(FILE *ofp, char *line, int limit)
        !           124:                         * split line into limit size chunks by inserting
        !           125:                         * \ \n and put the results to ofp. */
        !           126: extern strchrtr();
        !           127:                        /* strchrtr(char *from, char *to, int c, int d)
        !           128:                         * Find c in from and return the corresponding char
        !           129:                         * in to or def if there is none.
        !           130:                         */
        !           131: /*
        !           132:  * Definitions etc. for regexp(3) routines.
        !           133:  *
        !           134:  * Caveat:  this is V8 regexp(3) [actually, a reimplementation thereof],
        !           135:  * not the System V one.
        !           136:  *
        !           137:  * This is a modification of the University of Toronto regexp() package.
        !           138:  * Mostly to fit in cleanly with Coherent's libmisc. The original can
        !           139:  * be gotten free on mwcbbs.
        !           140:  */
        !           141: #define NSUBEXP  10
        !           142: typedef struct regexp {
        !           143:        char *startp[NSUBEXP];
        !           144:        char *endp[NSUBEXP];
        !           145:        char regstart;          /* Internal use only. */
        !           146:        char reganch;           /* Internal use only. */
        !           147:        char *regmust;          /* Internal use only. */
        !           148:        int regmlen;            /* Internal use only. */
        !           149:        char program[1];        /* Unwarranted chumminess with compiler. */
        !           150: } regexp;
        !           151: 
        !           152: extern regexp *regcomp();
        !           153: extern int regexec();
        !           154: extern void regsub();
        !           155: extern void regerror();
        !           156: /*
        !           157:  * The first byte of the regexp internal "program" is actually this magic
        !           158:  * number; the start node begins in the second byte.
        !           159:  */
        !           160: #define        REG_MAGIC       (char)0234
        !           161: #endif
        !           162: 
        !           163: #endif

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