fgetline.c File Reference

#include "schilyio.h"

Include dependency graph for fgetline.c:

Go to the source code of this file.

Macros
#define	fgetline   __no__fgetline__
#define	getline   __no__getline__
#define	FAST_GETC_PUTC   /* Will be reset if not possible */

Functions
EXPORT int fgetline	__PR ((FILE *, char *, int))
EXPORT int getline	__PR ((char *, int))
EXPORT int	fgetline (FILE *f, char *buf, int len)
EXPORT int	getline (char *buf, int len)
EXPORT int	js_fgetline (register FILE *f, char *buf, register int len)
EXPORT int	js_getline (char *buf, int len)

Macro Definition Documentation

FAST_GETC_PUTC

#define FAST_GETC_PUTC   /* Will be reset if not possible */

Definition at line 27 of file fgetline.c.

fgetline

#define fgetline   __no__fgetline__

Definition at line 24 of file fgetline.c.

getline

#define getline   __no__getline__

Definition at line 25 of file fgetline.c.

Function Documentation

__PR() [1/2]

EXPORT int getline __PR

(

(char *, int)

)

__PR() [2/2]

EXPORT int fgetline __PR

(

(FILE *, char *, int)

)

fgetline()

EXPORT int fgetline	(	FILE *	f,
		char *	buf,
		int	len
	)

Definition at line 47 of file fgetline.c.

{
    return (js_fgetline(f, buf, len));
}

getline()

EXPORT int getline	(	char *	buf,
		int	len
	)

Definition at line 56 of file fgetline.c.

{
    return (js_fgetline(stdin, buf, len));
}

js_fgetline()

EXPORT int js_fgetline	(	register FILE *	f,
		char *	buf,
		register int	len
	)

Definition at line 94 of file fgetline.c.

{
    register char   *bp = buf;
#if defined(HAVE_USG_STDIO) || defined(FAST_GETC_PUTC)
    register char   *p;
#else
    register int    nl  = '\n';
    register int    c   = '\0';
#endif
 
    down2(f, _IOREAD, _IORW);
 
    if (len <= 0)
        return (0);
 
    *bp = '\0';
    for (;;) {
#if defined(HAVE_USG_STDIO) || defined(FAST_GETC_PUTC)
        size_t  n;
 
        if ((__c f)->_cnt <= 0) {
            if (usg_filbuf(f) == EOF) {
                /*
                 * If buffer is empty and we hit EOF, return EOF
                 */
                if (bp == buf)
                    return (EOF);
                break;
            }
            (__c f)->_cnt++;
            (__c f)->_ptr--;
        }
 
        n = len;
        if (n > (__c f)->_cnt)
            n = (__c f)->_cnt;
        p = movecbytes((__c f)->_ptr, bp, '\n', n);
        if (p) {
            n = p - bp;
        }
        (__c f)->_ptr += n;
        (__c f)->_cnt -= n;
        bp += n;
        len -= n;
        if (p != NULL) {
            bp--;       /* Remove '\n' */
            break;
        }
#else
        if ((c = getc(f)) < 0) {
            /*
             * If buffer is empty and we hit EOF, return EOF
             */
            if (bp == buf)
                return (c);
            break;
        }
        if (c == nl)
            break;
        if (--len > 0) {
            *bp++ = (char)c;
        } else {
#ifdef  __never__
            /*
             * Read up to end of line
             */
            while ((c = getc(f)) >= 0 && c != nl)
                /* LINTED */
                ;
#endif
            break;
        }
#endif
    }
    *bp = '\0';
 
    return (bp - buf);
}

Referenced by fgetline(), getline(), and js_getline().

js_getline()

EXPORT int js_getline	(	char *	buf,
		int	len
	)

Definition at line 178 of file fgetline.c.

{
    return (js_fgetline(stdin, buf, len));
}