diff options
| -rw-r--r-- | shell/ash.c | 33 |
1 files changed, 22 insertions, 11 deletions
diff --git a/shell/ash.c b/shell/ash.c index 57316c916..045d659ed 100644 --- a/shell/ash.c +++ b/shell/ash.c @@ -1353,6 +1353,7 @@ struct builtincmd { #define IS_BUILTIN_SPECIAL(builtincmd) ((builtincmd)->name[0] & 1) #define IS_BUILTIN_REGULAR(builtincmd) ((builtincmd)->name[0] & 2) +#define IS_BUILTIN_ASSIGN(builtincmd) ((builtincmd)->name[0] & 4) static const struct builtincmd builtincmd[] = { { BUILTIN_SPEC_REG ".", dotcmd }, @@ -3208,7 +3209,14 @@ parse_command_args(char **argv, const char **path) } #endif - +static inline int +isassignment(const char *p) +{ + const char *q = endofname(p); + if (p == q) + return 0; + return *q == '='; +} /* * Execute a simple command. @@ -3232,6 +3240,8 @@ evalcommand(union node *cmd, int flags) int cmd_is_exec; int status; char **nargv; + struct builtincmd *bcmd; + int pseudovarflag = 0; /* First expand the arguments. */ TRACE(("evalcommand(0x%lx, %d) called\n", (long)cmd, flags)); @@ -3246,11 +3256,21 @@ evalcommand(union node *cmd, int flags) *arglist.lastp = NULL; argc = 0; + if (cmd->ncmd.args) + { + bcmd = find_builtin(cmd->ncmd.args->narg.text); + pseudovarflag = bcmd && IS_BUILTIN_ASSIGN(bcmd); + } + for (argp = cmd->ncmd.args; argp; argp = argp->narg.next) { struct strlist **spp; spp = arglist.lastp; - expandarg(argp, &arglist, EXP_FULL | EXP_TILDE); + if (pseudovarflag && isassignment(argp->narg.text)) + expandarg(argp, &arglist, EXP_VARTILDE); + else + expandarg(argp, &arglist, EXP_FULL | EXP_TILDE); + for (sp = *spp; sp; sp = sp->next) argc++; } @@ -9356,15 +9376,6 @@ static void setprompt(int); -static inline int -isassignment(const char *p) -{ - const char *q = endofname(p); - if (p == q) - return 0; - return *q == '='; -} - /* * Read and parse a command. Returns NEOF on end of file. (NULL is a |