will list any line and flag as a warning if there is a datatype mismatch between
the format string and the arguments to any of the printf() function family.
:D I once again am looking through the man pages and am still working on the find command to fully comprehend all its attributes.. i am a little stuck on a problem with how many options to -print there are and the only two I know how to use are printf and -print..
i can not make heads or tails of... (2 Replies)
Hi,
Can someone help me to figure out whether this code is to write file to /tmp/TIMECLOCK directory or just to asign a variable with "/tmp/TIMECLOCK/name.log_copy.pid" as the string?
I am looking into an old C program and could not figure out where in the code that creates... (1 Reply)
Hi
My requirement is to convert the following to C++
char buffer;
sprintf(buffer,"%s %-50s %6s %-6d %s\n",a.substr(0,5),a.substr(10,20))
Since the buffer is of varying length, i cannot hardcode the value as 90.
i would like to convert the buffer to string object so that it can receive any... (1 Reply)
Could someone explain me the following fprintf format:
fprintf (stderr, _("Try `%s --help' for more information.\n"),
program_name);
Why just not use:
fprintf(stderr, "ry `%s --help' for more information.\n", program_name)
I mean what is _() does? (1 Reply)
Hello,
In perl lang, I have create a string (@str) by sprintf but unfortunately when program printed it out, only I could saw a number like 1. Certainly printf doesn't problem. How I can convert a string that are result of sprintf to a common string format??!
Thanks in advance.
PLEASE HELP ME. (2 Replies)
I would like to assign the output of printf to a variable in perl , it give me back a "1" instead of the time. How can I stuff the variable with what printf returns?
Here is my code:
#!/usr/bin/perl
$time = localtime(time);... (3 Replies)
Hi,
I have the below sample code to hash the input number read from file. File will have 16 to 19 digit number and executable hash the number using some logic and returns the hashed value. Each digit in the 16 digit number is converted to a 4 byte value. That if the input is 16digit integer, the... (6 Replies)
Hi,
I am using fprintf to write few strings toa file which has been opened in write mode.
The syntax is as follows:
printf("Testing 7A.\n");
fprintf(out_screen,"%s|%s|%s|%s|%s|\n",var1,var2,var3,var4,var5);
printf("Testing 8.\n");
When I execute the code It prints "Testing 7A." then... (2 Replies)
i had to send a mail an attachment which i got from find command.
But i did not get mail but could see the following line in the logs "aliased to fprintf.c". Can someone help me to understand what does it mean?..As this issue is not occuring now, i could not replicate the problem now.Thanks. (1 Reply)
Discussion started by: jesu
1 Replies
LEARN ABOUT DEBIAN
hardened-cc
HARDENED-CC(1) Debian GNU/Linux HARDENED-CC(1)NAME
hardened-cc - gcc wrapper to enforce hardening toolchain improvements
SYNOPSIS
export DEB_BUILD_HARDENING=1
gcc ...
DESCRIPTION
The hardened-cc wrapper is normally used by calling gcc as usual when DEB_BUILD_HARDENING is set to 1. It will configure the necessary
toolchain hardening features. By default, all features are enabled. If a given feature does not work correctly and needs to be disabled,
the corresponding environment variables mentioned below can be set to 0.
ENVIRONMENT
DEB_BUILD_HARDENING=1
Enable hardening features.
DEB_BUILD_HARDENING_DEBUG=1
Print the full resulting gcc command line to STDERR before calling gcc.
DEB_BUILD_HARDENING_STACKPROTECTOR=0
Disable stack overflow protection. See README.Debian for details.
DEB_BUILD_HARDENING_RELRO=0
Disable read-only linker sections. See README.Debian for details.
DEB_BUILD_HARDENING_FORTIFY=0
Don't fortify several standard functions. See README.Debian for details.
DEB_BUILD_HARDENING_PIE=0
Don't build position independent executables. See README.Debian for details.
DEB_BUILD_HARDENING_FORMAT=0
Disable unsafe format string usage errors. See README.Debian for details.
NOTES
System-wide settings can be added to /etc/hardening-wrapper.conf, one per line.
The real gcc symlinks are renamed gcc.real, and a diversion is registered with dpkg-divert(1). Thus hardened-cc's idea of the default gcc
is dictated by whatever package installed /usr/bin/gcc.
SEE ALSO hardened-ld(1)gcc(1)Debian Project 2008-01-08 HARDENED-CC(1)