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authorDenis Vlasenko2007-05-24 12:18:16 +0000
committerDenis Vlasenko2007-05-24 12:18:16 +0000
commitb055001b6a69cf8fd513d36622cf693ee20c0e92 (patch)
tree13b92d347774d453d227b2f29dee695974a8727d /shell/hush.c
parent90e485ce79b8a0cd345bc5be76100291ec589579 (diff)
downloadbusybox-b055001b6a69cf8fd513d36622cf693ee20c0e92.zip
busybox-b055001b6a69cf8fd513d36622cf693ee20c0e92.tar.gz
hush: fix handling of unmatched ${name (without closing '}') -
was eating all remaining input, potentially megabytes. nofork: save/restore die_jmp too nofork: use -2222 instead of -111 as "special" return valur for zero (-111 is used by some applets. -2222 won't fit in exitcode and thus safer)
Diffstat (limited to 'shell/hush.c')
-rw-r--r--shell/hush.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/shell/hush.c b/shell/hush.c
index 579950f..1ff7b0d 100644
--- a/shell/hush.c
+++ b/shell/hush.c
@@ -427,13 +427,15 @@ enum { run_list_level = 0 };
/* Normal */
static void syntax(const char *msg)
{
- bb_error_msg(msg ? "%s: %s" : "syntax error", "syntax error", msg);
+ (interactive_fd ? bb_error_msg : bb_error_msg_and_die)
+ (msg ? "%s: %s" : "syntax error", "syntax error", msg);
}
#else
/* Debug */
static void syntax_lineno(int line)
{
- bb_error_msg("syntax error hush.c:%d", line);
+ (interactive_fd ? bb_error_msg : bb_error_msg_and_die)
+ ("syntax error hush.c:%d", line);
}
#define syntax(str) syntax_lineno(__LINE__)
#endif
@@ -3309,13 +3311,13 @@ static int handle_dollar(o_string *dest, struct p_context *ctx, struct in_str *i
/* XXX maybe someone will try to escape the '}' */
while (1) {
ch = b_getch(input);
- if (ch == EOF) {
+ if (ch == '}')
+ break;
+ if (!isalnum(ch) && ch != '_') {
syntax("unterminated ${name}");
debug_printf_parse("handle_dollar return 1: unterminated ${name}\n");
return 1;
}
- if (ch == '}')
- break;
debug_printf_parse(": '%c'\n", ch);
b_addchr(dest, ch | quote_mask);
quote_mask = 0;