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Code

handle vnsprintf differently if a return of -1 indicates truncation

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svn path=/icecast/branches/kh/net/; revision=7908
This commit is contained in:
Karl Heyes 2004-10-02 12:29:40 +00:00
parent aea34a81fe
commit daf35b8381
1 changed files with 28 additions and 0 deletions
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28
src/net/sock.c
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@ -362,6 +362,33 @@ int sock_write(sock_t sock, const char *fmt, ...)
return rc;
}
#ifdef HAVE_OLD_VSNPRINTF
int sock_write_fmt(sock_t sock, const char *fmt, va_list ap)
{
va_list ap_local;
unsigned int len = 1024;
char *buff = NULL;
int ret;
/* don't go infinite, but stop at some hugh limit */
while (len < 5*1024*1024)
{
char *tmp = realloc (buff, len);
if (tmp == NULL)
{
free (buff);
return -1;
}
buff = tmp;
va_copy (ap_local, ap);
ret = vsnprintf (buff, len, fmt, ap_local);
if (ret > 0)
return sock_write_bytes (sock, buff, ret);
len += 8192;
}
return -1;
}
#else
int sock_write_fmt(sock_t sock, const char *fmt, va_list ap)
{
char buffer [1024], *buff = buffer;
@ -394,6 +421,7 @@ int sock_write_fmt(sock_t sock, const char *fmt, va_list ap)
return rc;
}
#endif
/* function to check if there are any pending reads on