Thread: the MAIL command in UNIX and Pipes

  1. #16
    Registered User
    Join Date
    Aug 2002
    twm, I think you're getting confused about who posted.

  2. #17
    Join Date
    Sep 2003
    >twm, I think you're getting confused about who posted.
    How so? The first part was to you, the second to RoshanX. As far as I can tell, each comment was sent to the proper person.
    The information given in this message is known to work on FreeBSD 4.8 STABLE.
    *The above statement is false if I was too lazy to test it.*
    Please take note that I am not a technical writer, nor do I care to become one.
    If someone finds a mistake, gleaming error or typo, do me a favor...bite me.
    Don't assume that I'm ever entirely serious or entirely joking.

  3. #18
    char main() RoshanX's Avatar
    Join Date
    Mar 2003
    Nope , won't work. It will work if I use "Mail" instead of "mail". And I am using a sun os.

  4. #19
    Registered User
    Join Date
    Aug 2002
    try doing something like:
    fprintf(pipe_id,"Subject: %s\n",subject); //subject placed here
    I'm not sure if you need the newline or if it's best to use it there, but it should work.

  5. #20
    Registered User
    Join Date
    Sep 2002

    Sending email thingie

    This is a tad late, but you could always do something like this (to solve the discrepency about "mail" and "Mail" :P)

    #define YourEmail ""
    FILE *email;
    char cmd[64] = "";
    if((email = fopen("mail", "a+")) == NULL)
    	die("Cannot open text file for email.\n");
    fprintf(email, "To: %s\n", recpt);
    fprintf(email, "From: %s\n", YourEmail);
    fprintf(email, "Subject: There are %d users using %d processes\n\n", user_count, proc_count);
    ** fprintf(email, "message line here\n");
    ** etc
    sprintf(cmd, "/usr/lib/sendmail %s < mail", recpt);
    Not the best way, but it works, and I know, I had to use system()

    I'm sure there are other ways, such as "fastmail", or "sendmail -t with popen() and pclose()", but like I said, this was just an idea I had and decided to post because of the "mail" "Mail" discussion and to show that the code for it isn't that long in C, as the other person suggested.
    - Daniel Wallace

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