forked from KolibriOS/kolibrios
Added snprintf() and vsnprintf() functions.
git-svn-id: svn://kolibrios.org@1914 a494cfbc-eb01-0410-851d-a64ba20cac60
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@ -2,20 +2,41 @@
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#include <stdio.h>
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#include <limits.h>
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#include <libc/file.h>
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#include <stdarg.h>
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int
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vsnprintf(char *str, size_t size, const char *fmt, va_list ap)
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{
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FILE _strbuf;
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int len;
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_strbuf._flag = _IOWRT|_IOSTRG;
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_strbuf._ptr = str;
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_strbuf._cnt = size;
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len = _doprnt(fmt, ap, &_strbuf);
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*_strbuf._ptr = 0;
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return len;
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}
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int
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snprintf(char *str, size_t size, const char *fmt, ...)
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{
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int len;
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va_list va;
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va_start(va, fmt);
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len = vsnprintf(str, size, fmt, va);
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va_end(va);
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return len;
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}
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int
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sprintf(char *str, const char *fmt, ...)
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{
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FILE _strbuf;
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int len;
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va_list va;
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va_start(va, fmt);
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_strbuf._flag = _IOWRT|_IOSTRG;
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_strbuf._ptr = str;
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_strbuf._cnt = INT_MAX;
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len = _doprnt(fmt, va, &_strbuf);
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len = vsnprintf(str, INT_MAX, fmt, va);
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va_end(va);
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*_strbuf._ptr = 0;
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return len;
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}
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