ref: 42a7fcabb040928915756bd686f042063d48d8ec
parent: 79fbfbff48c19e11c60317797e7b9f2903e69a37
author: cinap_lenrek <cinap_lenrek@felloff.net>
date: Sun May 1 20:34:23 EDT 2016
awk: bring back ENVIRON[] support
--- a/sys/src/cmd/awk/proto.h
+++ b/sys/src/cmd/awk/proto.h
@@ -77,7 +77,7 @@
extern void syminit(void);
extern void arginit(int, char **);
-extern void envinit(char **);
+extern void envinit(void);
extern Array *makesymtab(int);
extern void freesymtab(Cell *);
extern void freeelem(Cell *, char *);
--- a/sys/src/cmd/awk/tran.c
+++ b/sys/src/cmd/awk/tran.c
@@ -113,24 +113,35 @@
}
}
-void envinit(char **envp) /* set up ENVIRON variable */
+void envinit(void) /* set up ENVIRON variable */
{- Cell *cp;
- char *p;
+ int fd, i, n;
+ char *k, *v;
+ Dir *buf;
- cp = setsymtab("ENVIRON", "", 0.0, ARR, symtab);ENVtab = makesymtab(NSYMTAB);
- cp->sval = (char *) ENVtab;
- for ( ; *envp; envp++) {- if ((p = strchr(*envp, '=')) == nil)
- continue;
- *p++ = 0; /* split into two strings at = */
- if (is_number(p))
- setsymtab(*envp, p, atof(p), STR|NUM, ENVtab);
- else
- setsymtab(*envp, p, 0.0, STR, ENVtab);
- p[-1] = '='; /* restore in case env is passed down to a shell */
+ if ((fd = open("/env", OREAD)) < 0)+ return;
+
+ buf = nil;
+ while((n = dirread(fd, &buf)) > 0) {+ for (i = 0; i < n; i++) {+ k = buf[i].name;
+ if(strncmp(k, "fn#", 3) == 0)
+ continue;
+ if ((v = getenv(k)) == nil)
+ continue;
+ if (is_number(v))
+ setsymtab(k, v, atof(v), STR|NUM, ENVtab);
+ else
+ setsymtab(k, v, 0.0, STR, ENVtab);
+ free(v);
+ }
+ free(buf);
+ buf = nil;
}
+
+ close(fd);
}
Array *makesymtab(int n) /* make a new symbol table */
@@ -210,9 +221,15 @@
if (p == nil)
FATAL("out of space for symbol table at %s", n);p->nval = tostring(n);
- p->sval = s ? tostring(s) : tostring("");p->fval = f;
- p->tval = t;
+ if(tp == symtab && strcmp(n, "ENVIRON") == 0 && !safe) {+ envinit();
+ p->sval = (char *) ENVtab;
+ p->tval = ARR;
+ } else {+ p->sval = s ? tostring(s) : tostring("");+ p->tval = t;
+ }
p->csub = CUNK;
p->ctype = OCELL;
tp->nelemt++;