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/*
* netsniff-ng - the packet sniffing beast
* Copyright 2009, 2010 Daniel Borkmann.
* Subject to the GPL, version 2.
*/
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include "str.h"
#include "die.h"
#include "xmalloc.h"
size_t strlcpy(char *dest, const char *src, size_t size)
{
size_t ret = strlen(src);
if (size) {
size_t len = (ret >= size) ? size - 1 : ret;
memcpy(dest, src, len);
dest[len] = '\0';
}
return ret;
}
static inline int vslprintf(char *dst, size_t size, const char *fmt, va_list ap)
{
int ret;
ret = vsnprintf(dst, size, fmt, ap);
dst[size - 1] = '\0';
return ret;
}
int slprintf(char *dst, size_t size, const char *fmt, ...)
{
int ret;
va_list ap;
va_start(ap, fmt);
ret = vslprintf(dst, size, fmt, ap);
va_end(ap);
return ret;
}
int slprintf_nocheck(char *dst, size_t size, const char *fmt, ...)
{
int ret;
va_list ap;
va_start(ap, fmt);
ret = vslprintf(dst, size, fmt, ap);
va_end(ap);
return ret;
}
noinline void *xmemset(void *s, int c, size_t n)
{
size_t i;
uint8_t *ptr = s;
for (i = 0; i < n; ++i)
ptr[i] = (uint8_t) c;
return ptr;
}
char *strtrim_right(char *p, char c)
{
char *end;
size_t len;
len = strlen(p);
while (*p && len) {
end = p + len - 1;
if (c == *end)
*end = 0;
else
break;
len = strlen(p);
}
return p;
}
char *argv2str(int startind, int argc, char **argv)
{
off_t offset = 0;
char *str = NULL;
int ret, i;
for (i = startind; i < argc; ++i) {
size_t alen = strlen(argv[i]) + 2;
size_t slen = str ? strlen(str) : 0;
str = xrealloc(str, slen + alen);
ret = slprintf(str + offset, strlen(argv[i]) + 2, "%s ", argv[i]);
if (ret < 0)
panic("Cannot concatenate string!\n");
else
offset += ret;
}
return str;
}
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