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memory: avoid a tiny leak when an option with an argument is given twice

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(Aaah, being able to define a keyboard macro
came in very handy when making this edit.)

This fixes https://savannah.gnu.org/bugs/?61331.

Bug existed since before version 2.2.0.
This commit is contained in:
Benno Schulenberg 2021-10-11 17:10:49 +02:00
parent 6018de2466
commit 42610db847
1 changed files with 9 additions and 9 deletions
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18
src/rcfile.c
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@ -1565,7 +1565,7 @@ void parse_rcfile(FILE *rcstream, bool just_syntax, bool intros_only)
#endif
#ifdef ENABLE_OPERATINGDIR
if (strcmp(option, "operatingdir") == 0)
operating_dir = copy_of(argument);
operating_dir = free_and_assign(operating_dir, copy_of(argument));
else
#endif
#ifdef ENABLED_WRAPORJUSTIFY
@ -1583,12 +1583,12 @@ void parse_rcfile(FILE *rcstream, bool just_syntax, bool intros_only)
else if (mbstrlen(argument) % 2 != 0)
jot_error(N_("Even number of characters required"));
else
matchbrackets = copy_of(argument);
matchbrackets = free_and_assign(matchbrackets, copy_of(argument));
} else if (strcmp(option, "whitespace") == 0) {
if (mbstrlen(argument) != 2 || breadth(argument) != 2)
jot_error(N_("Two single-column characters required"));
else {
whitespace = copy_of(argument);
whitespace = free_and_assign(whitespace, copy_of(argument));
whitelen[0] = char_length(whitespace);
whitelen[1] = char_length(whitespace + whitelen[0]);
}
@ -1599,26 +1599,26 @@ void parse_rcfile(FILE *rcstream, bool just_syntax, bool intros_only)
if (has_blank_char(argument))
jot_error(N_("Non-blank characters required"));
else
punct = copy_of(argument);
punct = free_and_assign(punct, copy_of(argument));
} else if (strcmp(option, "brackets") == 0) {
if (has_blank_char(argument))
jot_error(N_("Non-blank characters required"));
else
brackets = copy_of(argument);
brackets = free_and_assign(brackets, copy_of(argument));
} else if (strcmp(option, "quotestr") == 0)
quotestr = copy_of(argument);
quotestr = free_and_assign(quotestr, copy_of(argument));
else
#endif
#ifdef ENABLE_SPELLER
if (strcmp(option, "speller") == 0)
alt_speller = copy_of(argument);
alt_speller = free_and_assign(alt_speller, copy_of(argument));
else
#endif
#ifndef NANO_TINY
if (strcmp(option, "backupdir") == 0)
backup_dir = copy_of(argument);
backup_dir = free_and_assign(backup_dir, copy_of(argument));
else if (strcmp(option, "wordchars") == 0)
word_chars = copy_of(argument);
word_chars = free_and_assign(word_chars, copy_of(argument));
else if (strcmp(option, "guidestripe") == 0) {
if (!parse_num(argument, &stripe_column) || stripe_column <= 0) {
jot_error(N_("Guide column \"%s\" is invalid"), argument);