From c3de036da92777d69ea0a9725130085d546c366a Mon Sep 17 00:00:00 2001 From: Denys Vlasenko Date: Tue, 1 Jan 2019 02:19:02 +0100 Subject: [PATCH] bc: in xc_read_line(), check ^C on NUL input bytes too Signed-off-by: Denys Vlasenko --- miscutils/bc.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/miscutils/bc.c b/miscutils/bc.c index febf51cfd..23b3521d4 100644 --- a/miscutils/bc.c +++ b/miscutils/bc.c @@ -2509,7 +2509,7 @@ static void xc_read_line(BcVec *vec, FILE *fp) i = 0; for (;;) { char c = line_buf[i++]; - if (!c) break; + if (c == '\0') break; if (bad_input_byte(c)) goto again; } bc_vec_string(vec, n, line_buf); @@ -2522,14 +2522,16 @@ static void xc_read_line(BcVec *vec, FILE *fp) bool bad_chars = 0; do { + get_char: #if ENABLE_FEATURE_BC_INTERACTIVE if (G_interrupt) { // ^C was pressed: ignore entire line, get another one - bc_vec_pop_all(vec); - goto intr; + goto again; } #endif - do c = fgetc(fp); while (c == '\0'); + c = fgetc(fp); + if (c == '\0') + goto get_char; if (c == EOF) { if (ferror(fp)) bb_perror_msg_and_die("input error"); -- 2.25.1