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example/subsystem_netconf.c: Return error when read buffer is too small

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Also remove a little redundancy in the read loop condition.
This commit is contained in:
Peter Stuge 2012-02-01 10:56:42 +01:00
parent 0ebe6f44bd
commit effbb72192
1 changed files with 8 additions and 2 deletions
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example/subsystem_netconf.c
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@ -61,7 +61,8 @@ static int netconf_write(LIBSSH2_CHANNEL *channel, const char *buf, size_t len)
static int netconf_read_until(LIBSSH2_CHANNEL *channel, const char *endtag,
char *buf, size_t buflen)
{
ssize_t len, rd = 0;
ssize_t len;
size_t rd = 0;
char *endreply = NULL, *specialsequence = NULL;
memset(buf, 0, buflen);
@ -85,7 +86,12 @@ static int netconf_read_until(LIBSSH2_CHANNEL *channel, const char *endtag,
if (endreply)
specialsequence = strstr(endreply, "]]>]]>");
} while (!endreply || !specialsequence);
} while (!specialsequence && rd < buflen);
if (!specialsequence) {
fprintf(stderr, "%s: ]]>]]> not found! read buffer too small?\n", __func__);
return -1;
}
/* discard the special sequence so that only XML is returned */
rd = specialsequence - buf;