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| author | Denis Vlasenko | 2008-02-19 23:31:05 +0000 |
|---|---|---|
| committer | Denis Vlasenko | 2008-02-19 23:31:05 +0000 |
| commit | c12d51e94e219dfc212e7cdab64b314dbdb6e2f3 (patch) | |
| tree | dae7ca4b3a095e7b3934057c15810481c8b9f81a /shell/ash.c | |
| parent | 624188aec0e730375bb782a45ab3224b33dd30e9 (diff) | |
| download | busybox-c12d51e94e219dfc212e7cdab64b314dbdb6e2f3.zip busybox-c12d51e94e219dfc212e7cdab64b314dbdb6e2f3.tar.gz | |
ash: fix fallout from "A=1 B=$A; echo $B" code.
Diffstat (limited to 'shell/ash.c')
| -rw-r--r-- | shell/ash.c | 48 |
1 files changed, 29 insertions, 19 deletions
diff --git a/shell/ash.c b/shell/ash.c index 668953c..25c8fa5 100644 --- a/shell/ash.c +++ b/shell/ash.c @@ -1785,22 +1785,26 @@ static struct globals_var *const ptr_to_globals_var __attribute__ ((section (".d } \ } while (0) -#define vifs varinit[0] +#define vifs varinit[0] #if ENABLE_ASH_MAIL -#define vmail (&vifs)[1] -#define vmpath (&vmail)[1] +# define vmail (&vifs)[1] +# define vmpath (&vmail)[1] +# define vpath (&vmpath)[1] #else -#define vmpath vifs +# define vpath (&vifs)[1] #endif -#define vpath (&vmpath)[1] -#define vps1 (&vpath)[1] -#define vps2 (&vps1)[1] -#define vps4 (&vps2)[1] -#define voptind (&vps4)[1] +#define vps1 (&vpath)[1] +#define vps2 (&vps1)[1] +#define vps4 (&vps2)[1] #if ENABLE_ASH_GETOPTS -#define vrandom (&voptind)[1] +# define voptind (&vps4)[1] +# if ENABLE_ASH_RANDOM_SUPPORT +# define vrandom (&voptind)[1] +# endif #else -#define vrandom (&vps4)[1] +# if ENABLE_ASH_RANDOM_SUPPORT +# define vrandom (&vps4)[1] +# endif #endif /* @@ -1810,15 +1814,18 @@ static struct globals_var *const ptr_to_globals_var __attribute__ ((section (".d */ #define ifsval() (vifs.text + 4) #define ifsset() ((vifs.flags & VUNSET) == 0) -#define mailval() (vmail.text + 5) -#define mpathval() (vmpath.text + 9) +#if ENABLE_ASH_MAIL +# define mailval() (vmail.text + 5) +# define mpathval() (vmpath.text + 9) +# define mpathset() ((vmpath.flags & VUNSET) == 0) +#endif #define pathval() (vpath.text + 5) #define ps1val() (vps1.text + 4) #define ps2val() (vps2.text + 4) #define ps4val() (vps4.text + 4) -#define optindval() (voptind.text + 7) - -#define mpathset() ((vmpath.flags & VUNSET) == 0) +#if ENABLE_ASH_GETOPTS +# define optindval() (voptind.text + 7) +#endif #define is_name(c) ((c) == '_' || isalpha((unsigned char)(c))) @@ -5912,8 +5919,9 @@ varvalue(char *name, int varflags, int flags, struct strlist *var_str_list) unsigned name_len = (strchrnul(name, '=') - name) + 1; p = NULL; do { - char *str = var_str_list->text; - char *eq = strchr(str, '='); + char *str, *eq; + str = var_str_list->text; + eq = strchr(str, '='); if (!eq) /* stop at first non-assignment */ break; eq++; @@ -7677,6 +7685,7 @@ evalfor(union node *n, int flags) struct stackmark smark; setstackmark(&smark); + arglist.list = NULL; arglist.lastp = &arglist.list; for (argp = n->nfor.args; argp; argp = argp->narg.next) { expandarg(argp, &arglist, EXP_FULL | EXP_TILDE | EXP_RECORD); @@ -7716,6 +7725,7 @@ evalcase(union node *n, int flags) struct stackmark smark; setstackmark(&smark); + arglist.list = NULL; arglist.lastp = &arglist.list; expandarg(n->ncase.expr, &arglist, EXP_TILDE); exitstatus = 0; @@ -7777,7 +7787,7 @@ expredir(union node *n) for (redir = n; redir; redir = redir->nfile.next) { struct arglist fn; - memset(&fn, 0, sizeof(fn)); + fn.list = NULL; fn.lastp = &fn.list; switch (redir->type) { case NFROMTO: |