Blame snmplib/asprintf.c

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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <net-snmp/net-snmp-config.h>
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#ifndef HAVE_ASPRINTF
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NETSNMP_IMPORT
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int vasprintf(char **strp, const char *fmt, va_list ap)
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{
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    va_list ap_copy;
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    char *str;
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    int len;
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#ifdef va_copy
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    va_copy(ap_copy, ap);
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#else
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    __va_copy(ap_copy, ap);
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#endif
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    len = vsnprintf(NULL, 0, fmt, ap_copy);
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    va_end(ap_copy);
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    if (len < 0)
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        return len;
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    len++;
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    str = malloc(len);
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    *strp = str;
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    return str ? vsnprintf(str, len, fmt, ap) : -1;
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}
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NETSNMP_IMPORT
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int asprintf(char **strp, const char *fmt, ...)
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{
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    va_list arg;
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    int done;
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    va_start(arg, fmt);
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    done = vasprintf(strp, fmt, arg);
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    va_end(arg);
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    return done;
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}
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#endif