37 lines
693 B
C
37 lines
693 B
C
#include <stdarg.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include "bstr.h"
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char *
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bstr_print(char *base, const char *fmt, ...)
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{
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char *new_buf;
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size_t new_len;
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va_list ap;
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va_start(ap, fmt);
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new_len = vsnprintf(NULL, 0, fmt, ap);
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va_end(ap);
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new_buf = calloc(1, new_len + 1);
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va_start(ap, fmt);
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vsprintf(new_buf, fmt, ap);
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va_end(ap);
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if (!base) {
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return new_buf;
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} else {
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size_t baselen = strlen(base);
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base = realloc(base, baselen + new_len + 1);
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memcpy(&base[baselen], new_buf, new_len);
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base[baselen + new_len] = '\0';
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free(new_buf);
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return base;
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}
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}
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