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authorDenis Vlasenko2007-01-29 22:51:00 +0000
committerDenis Vlasenko2007-01-29 22:51:00 +0000
commita41fdf331af344ecd3ec230a072857ea197e1890 (patch)
tree70ffff0b7f48b35a70b8b04253abe9118ded6026 /editors/awk.c
parente935602ff5d5a45be56585b8bad44194c3e837a3 (diff)
downloadbusybox-a41fdf331af344ecd3ec230a072857ea197e1890.zip
busybox-a41fdf331af344ecd3ec230a072857ea197e1890.tar.gz
preparatory patch for -Wwrite-strings #1
Diffstat (limited to 'editors/awk.c')
-rw-r--r--editors/awk.c47
1 files changed, 27 insertions, 20 deletions
diff --git a/editors/awk.c b/editors/awk.c
index d6dcd95..ae7ca23 100644
--- a/editors/awk.c
+++ b/editors/awk.c
@@ -47,7 +47,7 @@ typedef struct var_s {
typedef struct chain_s {
struct node_s *first;
struct node_s *last;
- char *programname;
+ const char *programname;
} chain;
/* Function */
@@ -399,7 +399,7 @@ static int nextrec, nextfile;
static node *break_ptr, *continue_ptr;
static rstream *iF;
static xhash *vhash, *ahash, *fdhash, *fnhash;
-static char *programname;
+static const char *programname;
static short lineno;
static int is_f0_split;
static int nfields;
@@ -703,7 +703,7 @@ static var *setvar_i(var *v, double value)
return v;
}
-static char *getvar_s(var *v)
+static const char *getvar_s(var *v)
{
/* if v is numeric and has no cached string, convert it to string */
if ((v->type & (VF_NUMBER | VF_CACHED)) == VF_NUMBER) {
@@ -995,7 +995,7 @@ static node *new_node(uint32_t info)
return n;
}
-static node *mk_re_node(char *s, node *n, regex_t *re)
+static node *mk_re_node(const char *s, node *n, regex_t *re)
{
n->info = OC_REGEXP;
n->l.re = re;
@@ -1347,7 +1347,7 @@ static void parse_program(char *p)
/* -------- program execution part -------- */
-static node *mk_splitter(char *s, tsplitter *spl)
+static node *mk_splitter(const char *s, tsplitter *spl)
{
regex_t *re, *ire;
node *n;
@@ -1375,7 +1375,7 @@ static node *mk_splitter(char *s, tsplitter *spl)
static regex_t *as_regex(node *op, regex_t *preg)
{
var *v;
- char *s;
+ const char *s;
if ((op->info & OPCLSMASK) == OC_REGEXP) {
return icase ? op->r.ire : op->l.re;
@@ -1419,7 +1419,7 @@ static void fsrealloc(int size)
nfields = size;
}
-static int awk_split(char *s, node *spl, char **slist)
+static int awk_split(const char *s, node *spl, char **slist)
{
int l, n = 0;
char c[4];
@@ -1427,7 +1427,8 @@ static int awk_split(char *s, node *spl, char **slist)
regmatch_t pmatch[2];
/* in worst case, each char would be a separate field */
- *slist = s1 = xstrndup(s, strlen(s) * 2 + 3);
+ *slist = s1 = xzalloc(strlen(s) * 2 + 3);
+ strcpy(s1, s);
c[0] = c[1] = (char)spl->info;
c[2] = c[3] = '\0';
@@ -1436,8 +1437,9 @@ static int awk_split(char *s, node *spl, char **slist)
if ((spl->info & OPCLSMASK) == OC_REGEXP) { /* regex split */
while (*s) {
l = strcspn(s, c+2);
- if (regexec(icase ? spl->r.ire : spl->l.re, s, 1, pmatch, 0) == 0 &&
- pmatch[0].rm_so <= l) {
+ if (regexec(icase ? spl->r.ire : spl->l.re, s, 1, pmatch, 0) == 0
+ && pmatch[0].rm_so <= l
+ ) {
l = pmatch[0].rm_so;
if (pmatch[0].rm_eo == 0) { l++; pmatch[0].rm_eo++; }
} else {
@@ -1510,7 +1512,8 @@ static void split_f0(void)
static void handle_special(var *v)
{
int n;
- char *b, *sep, *s;
+ char *b;
+ const char *sep, *s;
int sl, l, len, i, bsize;
if (!(v->type & VF_SPECIAL))
@@ -1737,7 +1740,8 @@ static int fmt_num(char *b, int size, const char *format, double n, int int_as_i
static char *awk_printf(node *n)
{
char *b = NULL;
- char *fmt, *s, *s1, *f;
+ char *fmt, *s, *f;
+ const char *s1;
int i, j, incr, bsize;
char c, c1;
var *v, *arg;
@@ -1793,10 +1797,11 @@ static char *awk_printf(node *n)
* all matches. If src or dst is NULL, use $0. If ex=TRUE, enable
* subexpression matching (\1-\9)
*/
-static int awk_sub(node *rn, char *repl, int nm, var *src, var *dest, int ex)
+static int awk_sub(node *rn, const char *repl, int nm, var *src, var *dest, int ex)
{
char *ds = NULL;
- char *sp, *s;
+ const char *s;
+ const char *sp;
int c, i, j, di, rl, so, eo, nbs, n, dssize;
regmatch_t pmatch[10];
regex_t sreg, *re;
@@ -1865,7 +1870,7 @@ static var *exec_builtin(node *op, var *res)
var *tv;
node *an[4];
var *av[4];
- char *as[4];
+ const char *as[4];
regmatch_t pmatch[2];
regex_t sreg, *re;
static tsplitter tspl;
@@ -1998,8 +2003,10 @@ static var *exec_builtin(node *op, var *res)
tt = getvar_i(av[1]);
else
time(&tt);
- s = (nargs > 0) ? as[0] : "%a %b %d %H:%M:%S %Z %Y";
- i = strftime(buf, MAXVARFMT, s, localtime(&tt));
+ //s = (nargs > 0) ? as[0] : "%a %b %d %H:%M:%S %Z %Y";
+ i = strftime(buf, MAXVARFMT,
+ ((nargs > 0) ? as[0] : "%a %b %d %H:%M:%S %Z %Y"),
+ localtime(&tt));
buf[i] = '\0';
setvar_s(res, buf);
break;
@@ -2054,7 +2061,7 @@ static var *evaluate(node *op, var *res)
var *v1;
union {
var *v;
- char *s;
+ const char *s;
double d;
int i;
} L, R;
@@ -2168,7 +2175,7 @@ static var *evaluate(node *op, var *res)
} else { /* OC_PRINTF */
L.s = awk_printf(op1);
fputs(L.s, X.F);
- free(L.s);
+ free((char*)L.s);
}
fflush(X.F);
break;
@@ -2610,7 +2617,7 @@ static rstream *next_input_file(void)
{
static rstream rsm;
FILE *F = NULL;
- char *fname, *ind;
+ const char *fname, *ind;
static int files_happen = FALSE;
if (rsm.F) fclose(rsm.F);