1VSPRINTF(9) Basic C Library Functions VSPRINTF(9)
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6 vsprintf - Format a string and place it in a buffer
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9 int vsprintf(char * buf, const char * fmt, va_list args);
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12 buf
13 The buffer to place the result into
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15 fmt
16 The format string to use
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18 args
19 Arguments for the format string
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22 The function returns the number of characters written into buf. Use
23 vsnprintf or vscnprintf in order to avoid buffer overflows.
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25 Call this function if you are already dealing with a va_list. You
26 probably want sprintf instead.
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28 See the vsnprintf documentation for format string extensions over C99.
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31Kernel Hackers Manual 2.6. November 2011 VSPRINTF(9)