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26f21a6494
Changes: https://git.tcpdump.org/libpcap/blob/bbcbc9174df3298a854daee2b3e666a4b6e5383a:/CHANGES Reviewed by: emaste Obtained from: https://www.tcpdump.org/release/libpcap-1.10.5.tar.gz Sponsored by: The FreeBSD Foundation (cherry picked from commit afdbf109c6a661a729938f68211054a0a50d38ac) (cherry picked from commit ecb75be376a3e18d3e4836b6ee07015264784694) (cherry picked from commit f0bcebe67ef6cf9f104535d6cd9f151c1b61dd6a) (cherry picked from commit 34aa6f2c2db5cc9655f201a1ef01adbb9fb484d5)
51 lines
918 B
C
51 lines
918 B
C
#include <stdio.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include "portability.h"
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int
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pcapint_vasprintf(char **strp, const char *format, va_list args)
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{
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int len;
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size_t str_size;
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char *str;
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int ret;
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len = _vscprintf(format, args);
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if (len == -1) {
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*strp = NULL;
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return (-1);
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}
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str_size = len + 1;
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str = malloc(str_size);
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if (str == NULL) {
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*strp = NULL;
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return (-1);
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}
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ret = vsnprintf(str, str_size, format, args);
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if (ret == -1) {
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free(str);
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*strp = NULL;
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return (-1);
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}
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*strp = str;
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/*
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* vsnprintf() shouldn't truncate the string, as we have
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* allocated a buffer large enough to hold the string, so its
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* return value should be the number of characters printed.
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*/
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return (ret);
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}
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int
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pcapint_asprintf(char **strp, const char *format, ...)
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{
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va_list args;
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int ret;
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va_start(args, format);
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ret = pcapint_vasprintf(strp, format, args);
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va_end(args);
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return (ret);
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}
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