rexy712/nano-linefolding
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files: before sending data to an external command, decode LF back to NUL

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(There is no need to recode the NULs back to LFs because the sending of
the data happens in a separate process, which then simply disappears.)

This fixes https://savannah.gnu.org/bugs/?63106.

Bug existed since version 2.9.8, since filtering a buffer or a region
through an external command was introduced.
This commit is contained in:
Benno Schulenberg 2022-09-27 15:29:56 +02:00
parent 8d7b716ea7
commit 1dc2a75cb6
1 changed files with 10 additions and 1 deletions
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11
src/files.c
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@ -988,7 +988,16 @@ void send_data(const linestruct *line, int fd)
/* Send each line, except a final empty line. */
while (line != NULL && (line->next != NULL || line->data[0] != '\0')) {
fprintf(tube, "%s%s", line->data, line->next == NULL ? "" : "\n");
size_t length = strlen(line->data);
recode_LF_to_NUL(line->data);
if (fwrite(line->data, sizeof(char), length, tube) < length)
exit(5);
if (line->next && putc('\n', tube) == EOF)
exit(6);
line = line->next;
}