jssnprintf.c File Reference

#include <schily/mconfig.h>
#include <schily/unistd.h>
#include <schily/stdio.h>
#include <schily/stdlib.h>
#include <schily/varargs.h>
#include <schily/standard.h>
#include <schily/schily.h>

Include dependency graph for jssnprintf.c:

Go to the source code of this file.

Classes
struct	BUF

Typedefs
typedef struct BUF	_BUF

Functions
EXPORT int js_snprintf	__PR ((char *, size_t maxcnt, const char *,...))
static void	_cput (char c, void *l)
EXPORT int	js_snprintf (char *buf, unsigned maxcnt, char *form, va_alist)

Typedef Documentation

_BUF

typedef struct BUF _BUF

Function Documentation

__PR()

EXPORT int js_snprintf __PR

(

(char *, size_t maxcnt, const char *,...)

)

_cput()

static void _cput ( char  c, void *  l  )

static

Definition at line 39 of file jssnprintf.c.

{
    register BUF    bp = (BUF)l;
 
    if (--bp->count > 0) {
        *bp->ptr++ = c;
    } else {
        /*
         * Make sure that there will never be a negative overflow.
         */
        bp->count++;
    }
}

Referenced by js_snprintf().

js_snprintf()

EXPORT int js_snprintf	(	char *	buf,
		unsigned	maxcnt,
		char *	form,
		va_alist
	)

Definition at line 62 of file jssnprintf.c.

{
    va_list args;
    int cnt;
    _BUF    bb;
 
    bb.ptr = buf;
    bb.count = maxcnt;
 
#ifdef  PROTOTYPES
    va_start(args, form);
#else
    va_start(args);
#endif
    cnt = format(_cput, &bb, form,  args);
    va_end(args);
    if (maxcnt > 0)
        *(bb.ptr) = '\0';
    if (bb.count < 0)
        return (-1);
 
    return (cnt);
}

Referenced by _comerr(), and set_de_path().