5.76. gawk

Bug Fix

BZ#829558

Prior to this update, the "re_string_skip_chars" function incorrectly used the character count instead of the raw length to estimate the string length. As a consequence, any text in multi-byte encoding that did not use the UTF-8 format failed to be processed correctly. This update modifies the underlying code so that the correct string length is used. multi-byte encoding is processed correctly.

BZ#648906

Prior to this update, the gawk utility could, under certain circumstances, interpret some run-time variables as internal zero-length variable prototypes. When gawk tried to free such run-time variables, it actually freed the internal prototypes, that were allocated just once due to memory savings. As a consequence, gawk sometimes failed and the error message "awk: double free or corruption" was displayed. With this update the problem has been corrected and the error no longer occurs.

BZ#740673

Prior to this update, the gawk utility did not copy variables from the command line arguments. As a consequence, the variables were not accessible as intended. This update modifies the underlying code so that gawk makes copies of those variables.

BZ#743242

Prior to this update, the Yacc interpreter encountered problems handling larger stacks. As a consequence, the Yacc interpreter could fail with a stack overflow error when interpreting the AWK code. This update enlarges the stack and Yacc can now handle these AWK programs.