[Maxima-commits] [git] Maxima CAS branch master updated. branch-5_48-base-187-gecf662119

[villate <vi...@us...>]

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      from  7d78aa96b227bdd2e6526566e8e6c53c6a6bbdc1 (commit)

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- Log -----------------------------------------------------------------
commit ecf6621191402edd31bc4cf2e9576d846249308c
Author: villate <vi...@fe...>
Date:   Sun Sep 14 17:44:40 2025 +0100

    Parses the maximarc file instead of sourcing it.
    Sourcing a file poses a high security risk. The maximarc file should only
    be used to set some environment variables such as MAXIMA_LISP for the preferred Lisp flavor.
    Lines which are not used to set environment variables will now be ignored.

diff --git a/src/maxima.in b/src/maxima.in
index ce84356a6..a2240b6bb 100755
--- a/src/maxima.in
+++ b/src/maxima.in
@@ -63,7 +63,7 @@ fi
 }
 
 # make a special check for --userdir argument, because it influences location
-# of maximarc, which is sourced before  other command-line options are
+# of maximarc, which is parsed before  other command-line options are
 # processed
 process_userdir_argument "$@"
 
@@ -72,8 +72,15 @@ if [ -z "$MAXIMA_USERDIR" ]; then
 else
   maximarc_path="`unixize \"$MAXIMA_USERDIR\"`/maximarc"
 fi
+
+# Parses the maximarc file. For any line of the type keyword=<value>,
+# the line will be "exported" (enviroment variable keyword set to <value>).
+# Lines which something different than that are ignored.
 if [ -f "$maximarc_path" ]; then
-  . "$maximarc_path"
+    while IFS= read -r line; do
+        n=$(expr "$line" : '^[a-zA-Z\_]\+=')
+        [ $n -ne 0 ] && export "$line"
+    done < "$maximarc_path"
 fi
 
 # For some reason TeXmacs sets MAXIMA_DIRECTORY to the empty string,

-----------------------------------------------------------------------

Summary of changes:
 src/maxima.in | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)


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