search for: getenv

Hello, In Rubinius we're seeing an occasional crash inside LLVM that always happens inside getenv(), which is used for example when creating a MCContext (inside lib/MC/MCContext.cpp, it checks getenv("AS_SECURE_LOG_FILE")). The problem is that getenv() and friends aren't thread safe and Rubinius provides a multithreaded system. We can relatively easily get locking setup around th...

Right. glibc's amusing stance is that you setenv/putenv are not thread safe, but getenv is. I assume Ruby exposes setenv and therefore simply not calling setenv isn't an option. Would it solve your problems if all getenv() calls happened at cl::ParseCommandLineOptions() time? On Thu, May 23, 2013 at 9:49 AM, Dirkjan Bussink <d.bussink at gmail.com>wrote: > Hello, &gt...

Tomas, I think you're not addressing the actual issue which is a clear regression in Sys.getenv() [because it used to work and still works for single env var, but not a list] and the cryptic error due to that regression (caused by changes in R-devel). So in either case, Sys.getenv needs fixing (i.e., this should really go to the bugzilla). Its behavior is currently inconsistent. The quoted P...

...Runtime environment for my student project. While doing so I stumbled upon a bug in the implementation of lib/J3/Classpath/ClasspathVMSystemProperties.inc The current version first tries to get the username by checking the LOGNAME environment variable. If this is NULL it then checks tmp = getenv("USERNAME"); if (!tmp) tmp = getenv("LOGNAME"); else if (!tmp) tmp = getenv("NAME"); else if (!tmp) tmp = ""; setProperty(vm, prop, "user. diff a/ClasspathVMSystemProperties.inc b/ClasspathVMSystemProperties.inc 118,119c118,119 <...

/Hello. SUMMARY: $ BOOM=$'\xFF' LC_ALL=en_US.UTF-8 Rscript --vanilla -e "Sys.getenv()" Error in substring(x, m + 1L) : invalid multibyte string at '<ff>' $ BOOM=$'\xFF' LC_ALL=en_US.UTF-8 Rscript --vanilla -e "Sys.getenv('BOOM')" [1] "\xff" BACKGROUND: I launch R through an Son of Grid Engine (SGE) scheduler, where the R pro...

...etting a default username of "" fails, because the else paths are only taken when there inside if condition is false anyways. The elses should not be there but instead each method should be used until a username is returned. lib/J3/Classpath/ClasspathVMSystemProperties.inc tmp = getenv("USERNAME"); if (!tmp) tmp = getenv("LOGNAME"); else if (!tmp) tmp = getenv("NAME"); else if (!tmp) tmp = ""; The proper way to do this would be tmp = getenv("USERNAME"); if (!tmp) tmp = getenv("LOGNAME"); if (!tmp) tmp = getenv(&...

I've used that patch to close the hole. This patch is temporary and doesn't fix real trouble maker - problem in new version in getenv() (after 6.3 it got changed to something monstrous and non-working right if environment has only one variable), hope it will get fixed soon. *** rtld.c.orig Tue Dec 1 16:55:13 2009 --- rtld.c Tue Dec 1 16:55:55 2009 *************** *** 357,374 **** * is called. If any child process...

...t;> >> In general, what about behaving close to "old R" and replace all such >> strings by NA_character_ (and typically raising one warning)? >> This would keep the result a valid character vector, just with some NA entries. >> >> Specifically for Sys.getenv(), I still think Simon has a very >> valid point of "requiring" (of our design) that >> Sys.getenv()[["BOOM"]] {double `[[`} should be the same as >> Sys.getenv("BOOM") >> >> Also, as typical R user, I'd definitely want to be able t...

Another small problem in 2.0.0beta2: around line 1968, getenv() is called three times, with the same argument. The glibc manual says the memory zone returned by getenv() may be clobbered on non-glibc systems by other calls to getenv(), but there are no such calls in-between. I suggest to modify this code as : line 1924 : char *p, *user; line 1968 : if ((u...

...oo detrimental to performance here, since MCContext objects shouldn't be created too often. On Thu, May 23, 2013 at 9:49 AM, Dirkjan Bussink <d.bussink at gmail.com>wrote: > Hello, > > In Rubinius we're seeing an occasional crash inside LLVM that always > happens inside getenv(), which is used for example when creating a > MCContext (inside lib/MC/MCContext.cpp, it checks > getenv("AS_SECURE_LOG_FILE")). > > The problem is that getenv() and friends aren't thread safe and Rubinius > provides a multithreaded system. We can relatively easily get...

Hello, when using Sys.getenv() during startup-phase (.First or .Rprofile) to get the env-variables COLUMNS as well as HOST I get empty strings. After the startup is done, when asking via Sys.getenv() by hand, COLUMNS is set (but HOST is not, even "hostname" on the shell gives me a correct answer). At the moment my...

Within an R session, type Sys.getenv() will list all the environment variables, but each one of them occupies about a page, so scrolling to find one is difficult. Is this because I don't know how to use it or something could be improved? Usually I'm not sure the exact name of a variable but want to look it up. Recently I insta...

I am running R-1.3.0 on Solaris 8: Under Solaris I do setenv dendro_us hoffmann echo $dendro_us gives back: hoffmann which is correct. When in R I do: Sys.getenv("dendro_us") I get dendro_us "" which is NOT correct: Inverse effect (taken from help of Sys.getenv) Under R: print(Sys.putenv("R_TEST"="testit", ABC=123)) [1] TRUE TRUE Sys.getenv("R_TEST") gives back: R_TEST "testit" wh...

Hi folks I noticed something interesting when debugging a program that uses llvm for JIT compilation. Running `ltrace` surfaced a number of `getenv("bar")` calls coming from llvm. It turns out these are not "real" `getenv` calls, but are an optimization "do nothing" escape hatch which have been in `llvm/include/llvm/LinkAllPasses.h` [for over 15years](1) - apparently as a way to prevent the compiler eliminating sy...

Ok, thanks! I'm not dealing with UTF-8 so I don't think Process::GetEnv will work. I was looking for something that caches calls to getenv so checks could be put into tight(-ish) loops without too much performance impact. Would such a utility be of interest to the community? -David Reid Kleckner via llvm-dev <llvm-dev at lists.llvm.org...

...>, mpid=4018, TLS server dovecot: imap(<snip>: Error: DRAC: IP environment not given I traced the "IP environment not given" to the drac.c plugin file, and the code is pretty simple: void drac_init(void) { const char *ip_str; struct ip_addr ip; ip_str = getenv("IP"); if (ip_str == NULL) i_error("DRAC: IP environment not given"); Is there anything special that needs to be done for getenv("IP") to report the login IP? I tried to put getenv("RIP") for remote ip and even getenv("USER&qu...

...ification for the authentication key. */ public = key_new(KEY_RSA); @@ -244,7 +246,15 @@ snprintf(buf, sizeof buf, "Enter passphrase for RSA key '%.100s': ", comment); if (!options.batch_mode) - passphrase = read_passphrase(buf, 0); + if (!interactive && getenv("DISPLAY")) { + if (getenv(SSH_ASKPASS_ENV)) + askpass = getenv(SSH_ASKPASS_ENV); + else + askpass = SSH_ASKPASS_DEFAULT; + passphrase = ssh_askpass(askpass, buf); + } else { + passphrase = read_passphrase(buf, 0); + } else { debug("Will not query passp...

...eds to write to a temporary file, in the directory given by tempdir(). I want to change this from the standard one, as the file is too large for the drive. However, tempfile() doesnt seem to respect the environment variables when I change them with Sys.setenv(). In a fresh R-session: > Sys.getenv("TMP") [1] "C:\\Users\\skoiejo\\AppData\\Local\\Temp" > Sys.setenv(TMP = "e:\\Temp\\Rtmp") > Sys.getenv("TMP") [1] "e:\\Temp\\Rtmp" > tempfile() [1] "C:\\Users\\skoiejo\\AppData\\Local\\Temp\\Rtmp2tvQ7U\\file499a5987" # I hav...

getenv(<varname>) currently returns "" if the <varname> is undefined. However, if <varname> is defined but empty, getenv(<varname>) still only returns "". I think this is quite unfortunate but consistent with the prototype. --- I'd propose to change t...

Hi there, I am trying to distinguish between getOption() and Sys.getenv(). My understanding is that these are both used to set values for variables. getOption is set something like this: option("var" = "A"). This can be placed in an .Rprofile or at the top of script. They are called like this getOption("var"). Environmental variables are...