62 lines
988 B
C
62 lines
988 B
C
#include <stddef.h> /* size_t */
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#include <stdarg.h> /* va_list */
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#include "_putf.h"
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#include "at91_dbgu.h"
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int printf(const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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int rc = _putf(at91_dbgu_write, NULL, fmt, ap);
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va_end(ap);
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return rc;
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}
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int inline puts(const char *p)
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{
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at91_dbgu_puts(p);
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return 0;
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}
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int inline putchar(int c)
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{
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at91_dbgu_putc(c);
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return 0;
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}
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struct snprintf_data {
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char *bufstart;
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size_t buflen;
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int pos;
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};
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int snprintf_helper(void *base, const char *buf, size_t len)
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{
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struct snprintf_data *data = (struct snprintf_data *)base;
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int count = 0;
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while (len-- && (data->pos < data->buflen))
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data->bufstart[data->pos++] = *buf++;
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return count;
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}
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int snprintf(char *buf, size_t len, const char *fmt, ...)
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{
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struct snprintf_data data = {
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.bufstart = buf,
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.buflen = len,
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.pos = 0,
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};
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va_list ap;
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va_start(ap, fmt);
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int rc = _putf(snprintf_helper, (void *)&data, fmt, ap);
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va_end(ap);
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buf[data.pos] = '\0';
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return rc;
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}
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