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smtp: Reworked smtp_endofresp() to allow for extra capability detection

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This commit is contained in:
Steve Holme 2013-02-08 21:19:34 +00:00
parent dda53476ca
commit 40f9bb787f
1 changed files with 49 additions and 48 deletions
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97
lib/smtp.c
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@ -204,9 +204,9 @@ static const struct Curl_handler Curl_handler_smtps_proxy = {
#endif #endif
#endif #endif
/* Function that checks for an ending smtp status code at the start of the /* Function that checks for an ending SMTP status code at the start of the
given string, but also detects the supported authentication mechanisms given string, but also detects various capabilities from the EHLO response
from the EHLO AUTH response. */ including the supported authentication mechanisms. */
static int smtp_endofresp(struct pingpong *pp, int *resp) static int smtp_endofresp(struct pingpong *pp, int *resp)
{ {
char *line = pp->linestart_resp; char *line = pp->linestart_resp;
@ -223,55 +223,56 @@ static int smtp_endofresp(struct pingpong *pp, int *resp)
if((result = (line[3] == ' ')) != 0) if((result = (line[3] == ' ')) != 0)
*resp = curlx_sltosi(strtol(line, NULL, 10)); *resp = curlx_sltosi(strtol(line, NULL, 10));
line += 4; /* Are we processing EHLO command responses? */
len -= 4; if(smtpc->state == SMTP_EHLO) {
line += 4;
len -= 4;
/* Does the server support the SIZE capability? */ /* Does the server support the SIZE capability? */
if(smtpc->state == SMTP_EHLO && len >= 4 && !memcmp(line, "SIZE", 4)) { if(len >= 4 && !memcmp(line, "SIZE", 4))
DEBUGF(infof(conn->data, "Server supports SIZE extension.\n")); smtpc->size_supported = TRUE;
smtpc->size_supported = true;
}
/* Do we have the authentication mechanism list? */ /* Do we have the authentication mechanism list? */
if(smtpc->state == SMTP_EHLO && len >= 5 && !memcmp(line, "AUTH ", 5)) { else if(len >= 5 && !memcmp(line, "AUTH ", 5)) {
line += 5; line += 5;
len -= 5; len -= 5;
for(;;) { for(;;) {
while(len && while(len &&
(*line == ' ' || *line == '\t' || (*line == ' ' || *line == '\t' ||
*line == '\r' || *line == '\n')) { *line == '\r' || *line == '\n')) {
line++; line++;
len--; len--;
}
if(!len)
break;
/* Extract the word */
for(wordlen = 0; wordlen < len && line[wordlen] != ' ' &&
line[wordlen] != '\t' && line[wordlen] != '\r' &&
line[wordlen] != '\n';)
wordlen++;
/* Test the word for a matching authentication mechanism */
if(wordlen == 5 && !memcmp(line, "LOGIN", 5))
smtpc->authmechs |= SASL_MECH_LOGIN;
else if(wordlen == 5 && !memcmp(line, "PLAIN", 5))
smtpc->authmechs |= SASL_MECH_PLAIN;
else if(wordlen == 8 && !memcmp(line, "CRAM-MD5", 8))
smtpc->authmechs |= SASL_MECH_CRAM_MD5;
else if(wordlen == 10 && !memcmp(line, "DIGEST-MD5", 10))
smtpc->authmechs |= SASL_MECH_DIGEST_MD5;
else if(wordlen == 6 && !memcmp(line, "GSSAPI", 6))
smtpc->authmechs |= SASL_MECH_GSSAPI;
else if(wordlen == 8 && !memcmp(line, "EXTERNAL", 8))
smtpc->authmechs |= SASL_MECH_EXTERNAL;
else if(wordlen == 4 && !memcmp(line, "NTLM", 4))
smtpc->authmechs |= SASL_MECH_NTLM;
line += wordlen;
len -= wordlen;
} }
if(!len)
break;
/* Extract the word */
for(wordlen = 0; wordlen < len && line[wordlen] != ' ' &&
line[wordlen] != '\t' && line[wordlen] != '\r' &&
line[wordlen] != '\n';)
wordlen++;
/* Test the word for a matching authentication mechanism */
if(wordlen == 5 && !memcmp(line, "LOGIN", 5))
smtpc->authmechs |= SASL_MECH_LOGIN;
else if(wordlen == 5 && !memcmp(line, "PLAIN", 5))
smtpc->authmechs |= SASL_MECH_PLAIN;
else if(wordlen == 8 && !memcmp(line, "CRAM-MD5", 8))
smtpc->authmechs |= SASL_MECH_CRAM_MD5;
else if(wordlen == 10 && !memcmp(line, "DIGEST-MD5", 10))
smtpc->authmechs |= SASL_MECH_DIGEST_MD5;
else if(wordlen == 6 && !memcmp(line, "GSSAPI", 6))
smtpc->authmechs |= SASL_MECH_GSSAPI;
else if(wordlen == 8 && !memcmp(line, "EXTERNAL", 8))
smtpc->authmechs |= SASL_MECH_EXTERNAL;
else if(wordlen == 4 && !memcmp(line, "NTLM", 4))
smtpc->authmechs |= SASL_MECH_NTLM;
line += wordlen;
len -= wordlen;
} }
} }