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Diffstat (limited to 'shell/ash.c')
-rw-r--r--shell/ash.c34
1 files changed, 12 insertions, 22 deletions
diff --git a/shell/ash.c b/shell/ash.c
index 985507341..334d2fddd 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -26,7 +26,7 @@
* package.
*
* Modified by Erik Andersen <andersee@debian.org> and
- * Vladimir Oleynik <vodz@usa.net> to be used in busybox
+ * Vladimir Oleynik <dzo@simtreas.ru> to be used in busybox
*
*
* Original copyright notice is retained at the end of this file.
@@ -4995,7 +4995,7 @@ err1:
if (--in.nleft < 0) {
if (in.fd < 0)
break;
- while ((i = read(in.fd, buf, sizeof buf)) < 0 && errno == EINTR);
+ i = safe_read(in.fd, buf, sizeof buf);
TRACE(("expbackq: read returns %d\n", i));
if (i <= 0)
break;
@@ -6091,10 +6091,8 @@ init(void) {
* interactive shell and control is returned to the main command loop.
*/
-#ifdef ASH_ALIAS
/* 1 == check for aliases, 2 == also check for assignments */
-static int checkalias;
-#endif
+static int checkalias; /* also used in no alias mode for check assignments */
static void
reset(void) {
@@ -6117,9 +6115,7 @@ reset(void) {
{
tokpushback = 0;
checkkwd = 0;
-#ifdef ASH_ALIAS
checkalias = 0;
-#endif
}
/* from redir.c: */
@@ -6137,7 +6133,6 @@ reset(void) {
*/
#ifdef BB_FEATURE_COMMAND_EDITING
-unsigned int shell_context;
static const char * cmdedit_prompt;
static inline void putprompt(const char *s) {
cmdedit_prompt = s;
@@ -6206,23 +6201,18 @@ preadfd(void)
retry:
#ifdef BB_FEATURE_COMMAND_EDITING
{
- if (parsefile->fd)
- nr = read(parsefile->fd, buf, BUFSIZ - 1);
+ if (!iflag)
+ nr = safe_read(parsefile->fd, buf, BUFSIZ - 1);
else {
- do {
cmdedit_read_input((char*)cmdedit_prompt, buf);
nr = strlen(buf);
- } while (nr <=0 || shell_context);
- cmdedit_terminate();
}
}
#else
- nr = read(parsefile->fd, buf, BUFSIZ - 1);
+ nr = safe_read(parsefile->fd, buf, BUFSIZ - 1);
#endif
if (nr < 0) {
- if (errno == EINTR)
- goto retry;
if (parsefile->fd == 0 && errno == EWOULDBLOCK) {
int flags = fcntl(0, F_GETFL, 0);
if (flags >= 0 && flags & O_NONBLOCK) {
@@ -9872,9 +9862,7 @@ simplecmd() {
redir = NULL;
rpp = &redir;
-#ifdef ASH_ALIAS
checkalias = 2;
-#endif
for (;;) {
switch (readtoken()) {
case TWORD:
@@ -10036,9 +10024,10 @@ peektoken() {
static int
readtoken() {
int t;
+
#ifdef ASH_ALIAS
- int savecheckkwd = checkkwd;
int savecheckalias = checkalias;
+ int savecheckkwd = checkkwd;
struct alias *ap;
#endif
@@ -10083,13 +10072,14 @@ top:
}
}
-#ifdef ASH_ALIAS
+
if (t != TWORD) {
if (t != TREDIR) {
checkalias = 0;
}
} else if (checkalias == 2 && isassignment(wordtext)) {
lasttoken = t = TASSIGN;
+#ifdef ASH_ALIAS
} else if (checkalias) {
if (!quoteflag && (ap = lookupalias(wordtext, 1)) != NULL) {
if (*ap->val) {
@@ -10099,8 +10089,8 @@ top:
goto top;
}
checkalias = 0;
- }
#endif
+ }
out:
#ifdef DEBUG
if (!alreadyseen)
@@ -12927,7 +12917,7 @@ findvar(struct var **vpp, const char *name)
/*
* Copyright (c) 1999 Herbert Xu <herbert@debian.org>
* This file contains code for the times builtin.
- * $Id: ash.c,v 1.9 2001/07/10 16:57:09 andersen Exp $
+ * $Id: ash.c,v 1.10 2001/07/12 20:26:31 andersen Exp $
*/
static int timescmd (int argc, char **argv)
{