lseek in c Post: 72741

7 More Discussions You Might Find Interesting

1. Programming

Hairy Problem! lseek over 4G

recently my project needs me to lseek a position over 4G size.... i found in linux or unix the parameters are all ulong 32 bits...the limit dooms the movement of a position over 4G I was told that i should lseek64 to meet my need... but i have no idea where i can get the function neither by "man...

2. UNIX for Dummies Questions & Answers

lseek() equivalent

I know there is lseek() function that will allow to write or read from certain position in the file. Is there similar function that will let do same but for array rather then file?

3. UNIX for Dummies Questions & Answers

Lseek implementation

Hi everybody, i've been googling for ages now and gotten kinda desperate... The question, however, might be rather trivial for the experts: What is it exactly, i.e. physically, the POSIX function (for a file) "lseek" does? Does it trigger some kind of synchronization on disk? Is it just for the...

4. UNIX for Dummies Questions & Answers

Understanding lseek

I tried to use lseek system call to determine the number of bytes in a file. To do so, I used open system call with O_APPEND flag to open a file. As lseek returns the current offset so I called lseek for opened file with offset as zero and whence as SEEK_CUR. So I guess it must return the number of...

5. Programming

what is the main difference between difference between using nonatomic lseek and O_APPEND

I think both write at the end of the file ...... but is there a sharp difference between those 2 instruction ..... thank you this is my 3rd question today forgive me :D

6. AIX

Backup: The lseek call failed

Hi, We are facing issues while backing up our 1205 GB filesystem on LTO5 Tape. During backup the "backup: The lseek call failed." messages were generated, I want to know why these messages were generating AIX version is: 6100-08-00-0000 backup: The date of this level 0 backup is Mon Mar 11...

7. Programming

Problem with lseek call.

The following code: int fd; if (fd = open("mem", O_RDONLY) == -1) return 1; if (lseek(fd, 0, SEEK_SET) == -1) { char *buf = malloc(512); buf = strerror(errno); printf("%s\n", buf); return 1; } always returns with "illegal seek"...

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sendemail

SendEmail(1)							   User Commands						      SendEmail(1)

NAME

       SendEmail - Lightweight, command line SMTP email client

SYNOPSIS

       SendEmail -f ADDRESS [options]

OPTIONS

       -f ADDRESS
	      from (sender) email address

	      * At least one recipient required via -t, -cc, or -bcc * Message body required via -m, STDIN, or -o message-file=FILE

	      Common:

       -t ADDRESS [ADDR ...]
	      to email address(es)

       -u SUBJECT
	      message subject

       -m MESSAGE
	      message body

       -s SERVER[:PORT]
	      smtp mail relay, default is localhost:25

	      Optional:

       -a     FILE [FILE ...]	   file attachment(s)

       -cc    ADDRESS [ADDR ...]   cc  email address(es)

       -bcc ADDRESS [ADDR ...]
	      bcc email address(es)

	      [32;1mParanormal:[m

       -xu USERNAME
	      authentication user (for SMTP authentication)

       -xp PASSWORD
	      authentication password (for SMTP authentication)

       -l     LOGFILE		    log to the specified file

       -v     verbosity, use multiple times for greater effect

       -q     be quiet (no stdout output)

       -o NAME=VALUE
	      see extended help topic "misc" for details

	      Help:

       --help TOPIC
	      The following extended help topics are available:

       addressing
	      explain addressing and related options

       message
	      explain message body input and related options

       misc   explain -xu, -xp, and others

       networking
	      explain -s, etc

       output explain logging and other output options

REPORTING BUGS

       Report bugs to <http://bugs.debian.org/sendemail>

AUTHOR

       sendemail was written by Brandon Zehm <caspian@dotconf.net> .

       This  manual  page  was written by Brandon Zehm and improved by Alejandro Garrido Mota <garridomota@gmail.com>, for the Debian project (and
       may be used by others).

sendEmail							  September 2010						      SendEmail(1)