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shell: don't ignore IO errors

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This commit is contained in:
René Kijewski 2014-03-10 13:48:00 +01:00
parent 3f289760bf
commit a1df6a86bb
2 changed files with 7 additions and 1 deletions
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3
sys/shell/shell.c
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@ -217,6 +217,9 @@ static int readline(shell_t *shell, char *buf, size_t size)
} }
c = shell->readchar(); c = shell->readchar();
if (c < 0) {
return 1;
}
shell->put_char(c); shell->put_char(c);
/* We allow Unix linebreaks (\n), DOS linebreaks (\r\n), and Mac linebreaks (\r). */ /* We allow Unix linebreaks (\n), DOS linebreaks (\r\n), and Mac linebreaks (\r). */

5
tests/test_shell/main.c
View File

@ -53,7 +53,10 @@ static void print_echo(int argc, char **argv)
static int shell_readc(void) static int shell_readc(void)
{ {
char c; char c;
posix_read(uart0_handler_pid, &c, 1); int result = posix_read(uart0_handler_pid, &c, 1);
if (result != 1) {
return -1;
}
return (unsigned char) c; return (unsigned char) c;
} }