mirror of https://github.com/xemu-project/xemu.git
50 lines
1015 B
C
50 lines
1015 B
C
#include "qemu/osdep.h"
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#include "qemu/mstring.h"
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#include <stdarg.h>
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void mstring_append_fmt(MString *qstring, 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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mstring_append_va(qstring, fmt, ap);
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va_end(ap);
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}
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MString *mstring_from_fmt(const char *fmt, ...)
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{
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MString *ret = mstring_new();
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va_list ap;
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va_start(ap, fmt);
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mstring_append_va(ret, fmt, ap);
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va_end(ap);
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return ret;
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}
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void mstring_append_va(MString *qstring, const char *fmt, va_list va)
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{
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char scratch[256];
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va_list ap;
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va_copy(ap, va);
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const int len = vsnprintf(scratch, sizeof(scratch), fmt, ap);
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va_end(ap);
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if (len == 0) {
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return;
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} else if (len < sizeof(scratch)) {
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mstring_append(qstring, scratch);
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return;
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}
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/* overflowed out scratch buffer, alloc and try again */
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char *buf = g_malloc(len + 1);
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va_copy(ap, va);
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vsnprintf(buf, len + 1, fmt, ap);
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va_end(ap);
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mstring_append(qstring, buf);
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g_free(buf);
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}
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