xLib/smtp_tool.c File Reference

SMTPツールプログラム. More...

#include "smtp_tool.h"
#include "mime_tool.h"

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Functions
char *	get_smtp_rcpt (char *mesg)
char *	get_smtp_mailbox (char *mesg)
int	is_smtp_onecommand (char *mesg, char *com)
int	smtp_check_dot (char *mesg)

---

Detailed Description

Author:

Fumi.Iseki (C)

Date:

2005 12/25

Definition in file smtp_tool.c.

---

Function Documentation

char* get_smtp_mailbox

(

char *

mesg

)

char* get_smtp_mailbox(char* mesg)

<forward-path> から <mailbox> を返す．see RFC821
RFC821の <mailbox> とは，通常のメールアドレスのこと．

後ろの文字から探索し，(':' || '<' || ' ') 〜 !(' ' && '>' && CR && LF) を取り出す

Definition at line 63 of file smtp_tool.c.

References CHAR_CR, and CHAR_LF.

Referenced by get_smtp_rcpt().

{
    int i, j, k, l;
    char* mb;

    i = strlen((const char*)mesg);
    mb = (char*)malloc(i+1);
    if (mb==NULL) return NULL;
    memset(mb, 0, i+1);

    i--;
    while(i>=0) {
        if (mesg[i]!=' ' && mesg[i]!='>' && mesg[i]!=CHAR_CR && mesg[i]!=CHAR_LF) break;    
        i--;
    }
    l = i;

    while(i>=0) {
        if (mesg[i]==':' || mesg[i]=='<' || mesg[i]==' ') break;    
        i--;
    }
    k = i + 1;

    for (i=k, j=0; i<=l; i++) mb[j++] = mesg[i];

    return mb;
}

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char* get_smtp_rcpt

(

char *

mesg

)

char* get_smtp_rcpt(char* mesg)

mesg から RCPT TO: コマンドを検索し，配送先のメールアドレスを返す．

Definition at line 22 of file smtp_tool.c.

References awk(), freeNull, get_smtp_mailbox(), and pack_char.

{
    char* pp;
    char* pt;
    char* pc;
    char* pa = NULL;

    pp = awk(mesg, ':', 1);
    pc = pack_char(pp, ' ');
    freeNull(pp);
    if (pc==NULL) return NULL;

    if (!strcasecmp("RCPT TO", pc)) {
        pp = (char*)malloc(strlen((const char*)mesg)+1);
        pt = strstr(mesg, ":");
        if (pp==NULL || pt==NULL) {
            freeNull(pc);
            freeNull(pp);
            return NULL;
        }
        memset(pp, 0, strlen((const char*)mesg)+1);
        memcpy(pp, pt, strlen((const char*)pt));

        pa = get_smtp_mailbox(pp);
        freeNull(pp);
    }

    freeNull(pc);
    return pa;
}

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int is_smtp_onecommand	(	char *	mesg,
		char *	com
	)

int is_smtp_onecommand(char* mesg, char* com)

DATA, RSETなどの空白無し，引数なしのコマンドを識別する．

Definition at line 98 of file smtp_tool.c.

References awk(), FALSE, freeNull, pack_char, and TRUE.

{
    int   ret = FALSE;
    char* pp;
    char* pc;

    pp = pack_char(mesg, ' ');
    pc = awk(pp, ' ', 1);
    freeNull(pp);
    if (pc==NULL) return FALSE;

    if (!strncasecmp(com, pc, strlen((const char*)com))) ret = TRUE;

    freeNull(pc);
    return ret;
}

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int smtp_check_dot

(

char *

mesg

)

int smtp_check_dot(char* mesg)

メールの終わり "@\r@\n.@\r@\n" を探す．

Returns:

\r\n.\r\n を見つけたら TRUE, 無かったら FALSE

Definition at line 124 of file smtp_tool.c.

References FALSE, OFF, ON, and TRUE.

{
    static int preDot = OFF;
    char* p = mesg;

    if (preDot==ON) {                               // 文頭で ".\r\n" を探す．
        if (!strncmp(".\r\n", mesg, 3)) {
            preDot  = OFF;
            return TRUE;
        }
        preDot = OFF;
    }

    while(*p!='\0') {
        if (!strncmp("\r\n", p, 2)) {               // 文中で "\r\n" を探す．   
            if (p[2]=='\0') {                       // 文末で "\r\n" を探す．
                preDot = ON;
                return FALSE;
            }
            else if (!strncmp("\r\n.\r\n", p, 5)) { // 文中で "\r\n.\r\n" を探す．
                preDot = OFF;
                return TRUE;
            }
        }
        p++;
    }

    return FALSE;
}