untypedef expr, find, test, as is existing style in sbase
This commit is contained in:
Evan Gates
sin
parent
93fd817536
commit
cf5114a133
68
expr.c
68
expr.c
@ -12,15 +12,15 @@ enum {
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VAL = CHAR_MAX + 1, GE, LE, NE
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};
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typedef struct {
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char *s; /* iff s is NULL, Val is an integer */
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struct val {
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char *s; /* iff s is NULL, val is an integer */
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intmax_t n;
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} Val;
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};
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static size_t intlen;
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static void
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enan(Val v)
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enan(struct val v)
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{
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if (v.s)
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enprintf(2, "syntax error: expected integer got `%s'\n", v.s);
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@ -34,7 +34,7 @@ ezero(intmax_t n)
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}
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static char *
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valstr(Val val, char *buf, size_t bufsiz)
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valstr(struct val val, char *buf, size_t bufsiz)
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{
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if (val.s)
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return val.s;
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@ -43,7 +43,7 @@ valstr(Val val, char *buf, size_t bufsiz)
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}
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static int
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valcmp(Val a, Val b)
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valcmp(struct val a, struct val b)
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{
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char buf1[intlen], buf2[intlen];
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char *astr = valstr(a, buf1, sizeof(buf1));
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@ -59,8 +59,8 @@ valcmp(Val a, Val b)
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* then return the text matched by it \1 (empty string for no match)
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* else return number of characters matched (0 for no match)
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*/
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static Val
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match(Val vstr, Val vregx)
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static struct val
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match(struct val vstr, struct val vregx)
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{
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regex_t re;
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regmatch_t matches[2];
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@ -76,7 +76,7 @@ match(Val vstr, Val vregx)
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if (regexec(&re, str, 2, matches, 0)) {
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regfree(&re);
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return (Val){ (re.re_nsub ? "" : NULL), 0 };
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return (struct val){ (re.re_nsub ? "" : NULL), 0 };
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}
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if (re.re_nsub) {
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@ -87,15 +87,15 @@ match(Val vstr, Val vregx)
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*p = '\0';
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d = strtoimax(s, &p, 10);
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if (*s && !*p) /* string matched by subexpression is an integer */
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return (Val){ NULL, d };
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return (struct val){ NULL, d };
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/* FIXME? string is never free()d, worth fixing?
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* need to allocate as it could be in buf1 instead of vstr.s */
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return (Val){ enstrdup(3, s), 0 };
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return (struct val){ enstrdup(3, s), 0 };
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}
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regfree(&re);
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str += matches[0].rm_so;
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return (Val){ NULL, utfnlen(str, matches[0].rm_eo - matches[0].rm_so) };
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return (struct val){ NULL, utfnlen(str, matches[0].rm_eo - matches[0].rm_so) };
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}
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/* ops points to a stack of operators, opp points to one past the last op
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@ -105,9 +105,9 @@ match(Val vstr, Val vregx)
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* pop operator, pop two values, apply operator, push result
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*/
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static void
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doop(int *ops, int **opp, Val *vals, Val **valp)
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doop(int *ops, int **opp, struct val *vals, struct val **valp)
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{
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Val ret, a, b;
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struct val ret, a, b;
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int op;
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/* For an operation, we need a valid operator
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@ -123,30 +123,30 @@ doop(int *ops, int **opp, Val *vals, Val **valp)
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switch (op) {
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case '|':
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if ( a.s && *a.s) ret = (Val){ a.s , 0 };
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else if (!a.s && a.n) ret = (Val){ NULL, a.n };
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else if ( b.s && *b.s) ret = (Val){ b.s , 0 };
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else ret = (Val){ NULL, b.n };
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if ( a.s && *a.s) ret = (struct val){ a.s , 0 };
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else if (!a.s && a.n) ret = (struct val){ NULL, a.n };
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else if ( b.s && *b.s) ret = (struct val){ b.s , 0 };
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else ret = (struct val){ NULL, b.n };
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break;
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case '&':
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if (((a.s && *a.s) || a.n) && ((b.s && *b.s) || b.n))
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ret = a;
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else
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ret = (Val){ NULL, 0 };
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ret = (struct val){ NULL, 0 };
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break;
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case '=': ret = (Val){ NULL, valcmp(a, b) == 0 }; break;
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case '>': ret = (Val){ NULL, valcmp(a, b) > 0 }; break;
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case GE : ret = (Val){ NULL, valcmp(a, b) >= 0 }; break;
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case '<': ret = (Val){ NULL, valcmp(a, b) < 0 }; break;
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case LE : ret = (Val){ NULL, valcmp(a, b) <= 0 }; break;
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case NE : ret = (Val){ NULL, valcmp(a, b) != 0 }; break;
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case '=': ret = (struct val){ NULL, valcmp(a, b) == 0 }; break;
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case '>': ret = (struct val){ NULL, valcmp(a, b) > 0 }; break;
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case GE : ret = (struct val){ NULL, valcmp(a, b) >= 0 }; break;
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case '<': ret = (struct val){ NULL, valcmp(a, b) < 0 }; break;
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case LE : ret = (struct val){ NULL, valcmp(a, b) <= 0 }; break;
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case NE : ret = (struct val){ NULL, valcmp(a, b) != 0 }; break;
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case '+': enan(a); enan(b); ret = (Val){ NULL, a.n + b.n }; break;
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case '-': enan(a); enan(b); ret = (Val){ NULL, a.n - b.n }; break;
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case '*': enan(a); enan(b); ret = (Val){ NULL, a.n * b.n }; break;
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case '/': enan(a); enan(b); ezero(b.n); ret = (Val){ NULL, a.n / b.n }; break;
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case '%': enan(a); enan(b); ezero(b.n); ret = (Val){ NULL, a.n % b.n }; break;
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case '+': enan(a); enan(b); ret = (struct val){ NULL, a.n + b.n }; break;
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case '-': enan(a); enan(b); ret = (struct val){ NULL, a.n - b.n }; break;
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case '*': enan(a); enan(b); ret = (struct val){ NULL, a.n * b.n }; break;
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case '/': enan(a); enan(b); ezero(b.n); ret = (struct val){ NULL, a.n / b.n }; break;
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case '%': enan(a); enan(b); ezero(b.n); ret = (struct val){ NULL, a.n % b.n }; break;
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case ':': ret = match(a, b); break;
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}
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@ -160,7 +160,7 @@ doop(int *ops, int **opp, Val *vals, Val **valp)
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* if it is a value, place the value in v for use by parser
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*/
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static int
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lex(char *s, Val *v)
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lex(char *s, struct val *v)
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{
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intmax_t d;
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char *p, *ops = "|&=><+-*/%():";
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@ -168,7 +168,7 @@ lex(char *s, Val *v)
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/* clean integer */
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d = strtoimax(s, &p, 10);
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if (*s && !*p) {
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*v = (Val){ NULL, d };
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*v = (struct val){ NULL, d };
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return VAL;
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}
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@ -182,7 +182,7 @@ lex(char *s, Val *v)
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if (!strcmp(s, "!=")) return NE;
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/* nothing matched, treat as string */
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*v = (Val){ s, 0 };
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*v = (struct val){ s, 0 };
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return VAL;
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}
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@ -196,7 +196,7 @@ lex(char *s, Val *v)
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static int
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parse(char *expr[], int exprlen)
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{
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Val vals[exprlen], *valp = vals, v;
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struct val vals[exprlen], *valp = vals, v;
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int ops[exprlen], *opp = ops;
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int i, type, lasttype = 0;
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char prec[] = { /* precedence of operators */
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310
find.c
310
find.c
@ -17,75 +17,74 @@
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#include "util.h"
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/* because putting integers in pointers is undefined by the standard */
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typedef union {
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union extra {
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void *p;
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intptr_t i;
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} Extra;
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};
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/* Argument passed into a primary's function */
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typedef struct {
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struct arg {
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char *path;
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struct stat *st;
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Extra extra;
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} Arg;
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union extra extra;
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};
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/* Information about each primary, for lookup table */
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typedef struct {
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struct pri_info {
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char *name;
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int (*func)(Arg *arg);
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char **(*getarg)(char **argv, Extra *extra);
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void (*freearg)(Extra extra);
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int (*func)(struct arg *arg);
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char **(*getarg)(char **argv, union extra *extra);
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void (*freearg)(union extra extra);
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char narg; /* -xdev, -depth, -print don't take args but have getarg() */
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} Pri_info;
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};
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/* Information about operators, for lookup table */
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typedef struct {
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struct op_info {
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char *name; /* string representation of op */
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char type; /* from Tok.type */
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char type; /* from tok.type */
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char prec; /* precedence */
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char nargs; /* number of arguments (unary or binary) */
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char lassoc; /* left associative */
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} Op_info;
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};
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/* Token when lexing/parsing
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* (although also used for the expression tree) */
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typedef struct Tok Tok;
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struct Tok {
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Tok *left, *right; /* if (type == NOT) left = NULL */
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Extra extra;
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struct tok {
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struct tok *left, *right; /* if (type == NOT) left = NULL */
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union extra extra;
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union {
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Pri_info *pinfo; /* if (type == PRIM) */
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Op_info *oinfo;
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struct pri_info *pinfo; /* if (type == PRIM) */
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struct op_info *oinfo;
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} u;
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enum {
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PRIM = 0, LPAR, RPAR, NOT, AND, OR, END
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} type;
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};
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/* structures used for Arg.extra.p and Tok.extra.p */
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typedef struct {
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/* structures used for arg.extra.p and tok.extra.p */
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struct permarg {
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mode_t mode;
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char exact;
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} Permarg;
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};
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typedef struct {
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struct okarg {
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char ***braces;
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char **argv;
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} Okarg;
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};
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/* for all arguments that take a number
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* +n, n, -n mean > n, == n, < n respectively */
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typedef struct {
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struct narg {
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int (*cmp)(int a, int b);
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int n;
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} Narg;
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};
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typedef struct {
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Narg n;
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struct sizearg {
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struct narg n;
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char bytes; /* size is in bytes, not 512 byte sectors */
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} Sizearg;
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};
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typedef struct {
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struct execarg {
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union {
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struct {
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char ***braces; /* NULL terminated list of pointers into argv where {} were */
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@ -100,76 +99,75 @@ typedef struct {
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} u;
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char **argv; /* NULL terminated list of arguments (allocated if isplus) */
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char isplus; /* -exec + instead of -exec ; */
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} Execarg;
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};
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/* used to find loops while recursing through directory structure */
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typedef struct Findhist Findhist;
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struct Findhist {
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Findhist *next;
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char *path;
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dev_t dev;
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ino_t ino;
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struct findhist {
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struct findhist *next;
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char *path;
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dev_t dev;
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ino_t ino;
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};
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/* Primaries */
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static int pri_name (Arg *arg);
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static int pri_path (Arg *arg);
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static int pri_nouser (Arg *arg);
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static int pri_nogroup(Arg *arg);
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static int pri_xdev (Arg *arg);
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static int pri_prune (Arg *arg);
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static int pri_perm (Arg *arg);
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static int pri_type (Arg *arg);
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static int pri_links (Arg *arg);
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static int pri_user (Arg *arg);
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static int pri_group (Arg *arg);
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static int pri_size (Arg *arg);
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static int pri_atime (Arg *arg);
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static int pri_ctime (Arg *arg);
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static int pri_mtime (Arg *arg);
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static int pri_exec (Arg *arg);
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static int pri_ok (Arg *arg);
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static int pri_print (Arg *arg);
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static int pri_newer (Arg *arg);
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static int pri_depth (Arg *arg);
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static int pri_name (struct arg *arg);
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static int pri_path (struct arg *arg);
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static int pri_nouser (struct arg *arg);
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static int pri_nogroup(struct arg *arg);
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static int pri_xdev (struct arg *arg);
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static int pri_prune (struct arg *arg);
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static int pri_perm (struct arg *arg);
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static int pri_type (struct arg *arg);
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static int pri_links (struct arg *arg);
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static int pri_user (struct arg *arg);
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static int pri_group (struct arg *arg);
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static int pri_size (struct arg *arg);
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static int pri_atime (struct arg *arg);
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static int pri_ctime (struct arg *arg);
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static int pri_mtime (struct arg *arg);
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static int pri_exec (struct arg *arg);
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static int pri_ok (struct arg *arg);
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static int pri_print (struct arg *arg);
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static int pri_newer (struct arg *arg);
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static int pri_depth (struct arg *arg);
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/* Getargs */
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static char **get_name_arg (char *argv[], Extra *extra);
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static char **get_path_arg (char *argv[], Extra *extra);
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static char **get_xdev_arg (char *argv[], Extra *extra);
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static char **get_perm_arg (char *argv[], Extra *extra);
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static char **get_type_arg (char *argv[], Extra *extra);
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static char **get_n_arg (char *argv[], Extra *extra);
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static char **get_user_arg (char *argv[], Extra *extra);
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static char **get_group_arg(char *argv[], Extra *extra);
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static char **get_size_arg (char *argv[], Extra *extra);
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static char **get_exec_arg (char *argv[], Extra *extra);
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static char **get_ok_arg (char *argv[], Extra *extra);
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static char **get_print_arg(char *argv[], Extra *extra);
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static char **get_newer_arg(char *argv[], Extra *extra);
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static char **get_depth_arg(char *argv[], Extra *extra);
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static char **get_name_arg (char *argv[], union extra *extra);
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static char **get_path_arg (char *argv[], union extra *extra);
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static char **get_xdev_arg (char *argv[], union extra *extra);
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static char **get_perm_arg (char *argv[], union extra *extra);
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static char **get_type_arg (char *argv[], union extra *extra);
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static char **get_n_arg (char *argv[], union extra *extra);
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static char **get_user_arg (char *argv[], union extra *extra);
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static char **get_group_arg(char *argv[], union extra *extra);
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static char **get_size_arg (char *argv[], union extra *extra);
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static char **get_exec_arg (char *argv[], union extra *extra);
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static char **get_ok_arg (char *argv[], union extra *extra);
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static char **get_print_arg(char *argv[], union extra *extra);
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static char **get_newer_arg(char *argv[], union extra *extra);
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static char **get_depth_arg(char *argv[], union extra *extra);
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/* Freeargs */
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static void free_extra (Extra extra);
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static void free_exec_arg(Extra extra);
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static void free_ok_arg (Extra extra);
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static void free_extra (union extra extra);
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static void free_exec_arg(union extra extra);
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static void free_ok_arg (union extra extra);
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/* Parsing/Building/Running */
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static void fill_narg(char *s, Narg *n);
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static Pri_info *find_primary(char *name);
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static Op_info *find_op(char *name);
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static void fill_narg(char *s, struct narg *n);
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static struct pri_info *find_primary(char *name);
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static struct op_info *find_op(char *name);
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static void parse(int argc, char **argv);
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static int eval(Tok *tok, Arg *arg);
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static void find(char *path, Findhist *hist);
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static int eval(struct tok *tok, struct arg *arg);
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static void find(char *path, struct findhist *hist);
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static void usage(void);
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/* for comparisons with Narg */
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/* for comparisons with narg */
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static int cmp_gt(int a, int b) { return a > b; }
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static int cmp_eq(int a, int b) { return a == b; }
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static int cmp_lt(int a, int b) { return a < b; }
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/* order from find(1p), may want to alphabetize */
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static Pri_info primaries[] = {
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static struct pri_info primaries[] = {
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{ "-name" , pri_name , get_name_arg , NULL , 1 },
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{ "-path" , pri_path , get_path_arg , NULL , 1 },
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{ "-nouser" , pri_nouser , NULL , NULL , 1 },
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@ -194,7 +192,7 @@ static Pri_info primaries[] = {
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{ NULL, NULL, NULL, NULL, 0 }
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};
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static Op_info ops[] = {
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static struct op_info ops[] = {
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{ "(" , LPAR, 0, 0, 0 }, /* parens are handled specially */
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{ ")" , RPAR, 0, 0, 0 },
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{ "!" , NOT , 3, 1, 0 },
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@ -206,8 +204,8 @@ static Op_info ops[] = {
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extern char **environ;
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static Tok *toks; /* holds allocated array of all Toks created while parsing */
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static Tok *root; /* points to root of expression tree, inside toks array */
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static struct tok *toks; /* holds allocated array of all toks created while parsing */
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static struct tok *root; /* points to root of expression tree, inside toks array */
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static struct timespec start; /* time find was started, used for -[acm]time */
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@ -228,13 +226,13 @@ static struct {
|
||||
* Primaries
|
||||
*/
|
||||
static int
|
||||
pri_name(Arg *arg)
|
||||
pri_name(struct arg *arg)
|
||||
{
|
||||
return !fnmatch((char *)arg->extra.p, basename(arg->path), 0);
|
||||
}
|
||||
|
||||
static int
|
||||
pri_path(Arg *arg)
|
||||
pri_path(struct arg *arg)
|
||||
{
|
||||
return !fnmatch((char *)arg->extra.p, arg->path, 0);
|
||||
}
|
||||
@ -242,39 +240,39 @@ pri_path(Arg *arg)
|
||||
/* FIXME: what about errors? find(1p) literally just says
|
||||
* "for which the getpwuid() function ... returns NULL" */
|
||||
static int
|
||||
pri_nouser(Arg *arg)
|
||||
pri_nouser(struct arg *arg)
|
||||
{
|
||||
return !getpwuid(arg->st->st_uid);
|
||||
}
|
||||
|
||||
static int
|
||||
pri_nogroup(Arg *arg)
|
||||
pri_nogroup(struct arg *arg)
|
||||
{
|
||||
return !getgrgid(arg->st->st_gid);
|
||||
}
|
||||
|
||||
static int
|
||||
pri_xdev(Arg *arg)
|
||||
pri_xdev(struct arg *arg)
|
||||
{
|
||||
return 1;
|
||||
}
|
||||
|
||||
static int
|
||||
pri_prune(Arg *arg)
|
||||
pri_prune(struct arg *arg)
|
||||
{
|
||||
return gflags.prune = 1;
|
||||
}
|
||||
|
||||
static int
|
||||
pri_perm(Arg *arg)
|
||||
pri_perm(struct arg *arg)
|
||||
{
|
||||
Permarg *p = (Permarg *)arg->extra.p;
|
||||
struct permarg *p = (struct permarg *)arg->extra.p;
|
||||
|
||||
return (arg->st->st_mode & 07777 & (p->exact ? -1U : p->mode)) == p->mode;
|
||||
}
|
||||
|
||||
static int
|
||||
pri_type(Arg *arg)
|
||||
pri_type(struct arg *arg)
|
||||
{
|
||||
switch ((char)arg->extra.i) {
|
||||
default : return 0; /* impossible, but placate warnings */
|
||||
@ -289,28 +287,28 @@ pri_type(Arg *arg)
|
||||
}
|
||||
|
||||
static int
|
||||
pri_links(Arg *arg)
|
||||
pri_links(struct arg *arg)
|
||||
{
|
||||
Narg *n = arg->extra.p;
|
||||
struct narg *n = arg->extra.p;
|
||||
return n->cmp(arg->st->st_nlink, n->n);
|
||||
}
|
||||
|
||||
static int
|
||||
pri_user(Arg *arg)
|
||||
pri_user(struct arg *arg)
|
||||
{
|
||||
return arg->st->st_uid == (uid_t)arg->extra.i;
|
||||
}
|
||||
|
||||
static int
|
||||
pri_group(Arg *arg)
|
||||
pri_group(struct arg *arg)
|
||||
{
|
||||
return arg->st->st_gid == (gid_t)arg->extra.i;
|
||||
}
|
||||
|
||||
static int
|
||||
pri_size(Arg *arg)
|
||||
pri_size(struct arg *arg)
|
||||
{
|
||||
Sizearg *s = arg->extra.p;
|
||||
struct sizearg *s = arg->extra.p;
|
||||
off_t size = arg->st->st_size;
|
||||
|
||||
if (!s->bytes)
|
||||
@ -321,37 +319,37 @@ pri_size(Arg *arg)
|
||||
|
||||
/* FIXME: ignoring nanoseconds in atime, ctime, mtime */
|
||||
static int
|
||||
pri_atime(Arg *arg)
|
||||
pri_atime(struct arg *arg)
|
||||
{
|
||||
Narg *n = arg->extra.p;
|
||||
struct narg *n = arg->extra.p;
|
||||
time_t time = (n->n - start.tv_sec) / 86400;
|
||||
return n->cmp(time, n->n);
|
||||
}
|
||||
|
||||
static int
|
||||
pri_ctime(Arg *arg)
|
||||
pri_ctime(struct arg *arg)
|
||||
{
|
||||
Narg *n = arg->extra.p;
|
||||
struct narg *n = arg->extra.p;
|
||||
time_t time = (n->n - start.tv_sec) / 86400;
|
||||
return n->cmp(time, n->n);
|
||||
}
|
||||
|
||||
static int
|
||||
pri_mtime(Arg *arg)
|
||||
pri_mtime(struct arg *arg)
|
||||
{
|
||||
Narg *n = arg->extra.p;
|
||||
struct narg *n = arg->extra.p;
|
||||
time_t time = (n->n - start.tv_sec) / 86400;
|
||||
return n->cmp(time, n->n);
|
||||
}
|
||||
|
||||
static int
|
||||
pri_exec(Arg *arg)
|
||||
pri_exec(struct arg *arg)
|
||||
{
|
||||
int status;
|
||||
size_t len;
|
||||
pid_t pid;
|
||||
char **sp, ***brace;
|
||||
Execarg *e = arg->extra.p;
|
||||
struct execarg *e = arg->extra.p;
|
||||
|
||||
if (e->isplus) {
|
||||
len = strlen(arg->path) + 1;
|
||||
@ -406,12 +404,12 @@ pri_exec(Arg *arg)
|
||||
}
|
||||
|
||||
static int
|
||||
pri_ok(Arg *arg)
|
||||
pri_ok(struct arg *arg)
|
||||
{
|
||||
int status;
|
||||
pid_t pid;
|
||||
char ***brace, reply, buf[256];
|
||||
Okarg *o = arg->extra.p;
|
||||
struct okarg *o = arg->extra.p;
|
||||
|
||||
fprintf(stderr, "%s: %s ?", *o->argv, arg->path);
|
||||
reply = fgetc(stdin);
|
||||
@ -445,7 +443,7 @@ pri_ok(Arg *arg)
|
||||
}
|
||||
|
||||
static int
|
||||
pri_print(Arg *arg)
|
||||
pri_print(struct arg *arg)
|
||||
{
|
||||
if (puts(arg->path) == EOF)
|
||||
eprintf("puts failed:");
|
||||
@ -454,13 +452,13 @@ pri_print(Arg *arg)
|
||||
|
||||
/* FIXME: ignoring nanoseconds */
|
||||
static int
|
||||
pri_newer(Arg *arg)
|
||||
pri_newer(struct arg *arg)
|
||||
{
|
||||
return arg->st->st_mtime > (time_t)arg->extra.i;
|
||||
}
|
||||
|
||||
static int
|
||||
pri_depth(Arg *arg)
|
||||
pri_depth(struct arg *arg)
|
||||
{
|
||||
return 1;
|
||||
}
|
||||
@ -471,30 +469,30 @@ pri_depth(Arg *arg)
|
||||
* return pointer to last argument, the pointer will be incremented in parse()
|
||||
*/
|
||||
static char **
|
||||
get_name_arg(char *argv[], Extra *extra)
|
||||
get_name_arg(char *argv[], union extra *extra)
|
||||
{
|
||||
extra->p = *argv;
|
||||
return argv;
|
||||
}
|
||||
|
||||
static char **
|
||||
get_path_arg(char *argv[], Extra *extra)
|
||||
get_path_arg(char *argv[], union extra *extra)
|
||||
{
|
||||
extra->p = *argv;
|
||||
return argv;
|
||||
}
|
||||
|
||||
static char **
|
||||
get_xdev_arg(char *argv[], Extra *extra)
|
||||
get_xdev_arg(char *argv[], union extra *extra)
|
||||
{
|
||||
gflags.xdev = 1;
|
||||
return argv;
|
||||
}
|
||||
|
||||
static char **
|
||||
get_perm_arg(char *argv[], Extra *extra)
|
||||
get_perm_arg(char *argv[], union extra *extra)
|
||||
{
|
||||
Permarg *p = extra->p = emalloc(sizeof(*p));
|
||||
struct permarg *p = extra->p = emalloc(sizeof(*p));
|
||||
|
||||
if (**argv == '-')
|
||||
(*argv)++;
|
||||
@ -507,7 +505,7 @@ get_perm_arg(char *argv[], Extra *extra)
|
||||
}
|
||||
|
||||
static char **
|
||||
get_type_arg(char *argv[], Extra *extra)
|
||||
get_type_arg(char *argv[], union extra *extra)
|
||||
{
|
||||
if (!strchr("bcdlpfs", **argv))
|
||||
eprintf("invalid type %c for -type primary\n", **argv);
|
||||
@ -517,15 +515,15 @@ get_type_arg(char *argv[], Extra *extra)
|
||||
}
|
||||
|
||||
static char **
|
||||
get_n_arg(char *argv[], Extra *extra)
|
||||
get_n_arg(char *argv[], union extra *extra)
|
||||
{
|
||||
Narg *n = extra->p = emalloc(sizeof(*n));
|
||||
struct narg *n = extra->p = emalloc(sizeof(*n));
|
||||
fill_narg(*argv, n);
|
||||
return argv;
|
||||
}
|
||||
|
||||
static char **
|
||||
get_user_arg(char *argv[], Extra *extra)
|
||||
get_user_arg(char *argv[], union extra *extra)
|
||||
{
|
||||
char *end;
|
||||
struct passwd *p = getpwnam(*argv);
|
||||
@ -541,7 +539,7 @@ get_user_arg(char *argv[], Extra *extra)
|
||||
}
|
||||
|
||||
static char **
|
||||
get_group_arg(char *argv[], Extra *extra)
|
||||
get_group_arg(char *argv[], union extra *extra)
|
||||
{
|
||||
char *end;
|
||||
struct group *g = getgrnam(*argv);
|
||||
@ -557,10 +555,10 @@ get_group_arg(char *argv[], Extra *extra)
|
||||
}
|
||||
|
||||
static char **
|
||||
get_size_arg(char *argv[], Extra *extra)
|
||||
get_size_arg(char *argv[], union extra *extra)
|
||||
{
|
||||
char *p = *argv + strlen(*argv);
|
||||
Sizearg *s = extra->p = emalloc(sizeof(*s));
|
||||
struct sizearg *s = extra->p = emalloc(sizeof(*s));
|
||||
/* if the number is followed by 'c', the size will by in bytes */
|
||||
if ((s->bytes = (p > *argv && *--p == 'c')))
|
||||
*p = '\0';
|
||||
@ -570,11 +568,11 @@ get_size_arg(char *argv[], Extra *extra)
|
||||
}
|
||||
|
||||
static char **
|
||||
get_exec_arg(char *argv[], Extra *extra)
|
||||
get_exec_arg(char *argv[], union extra *extra)
|
||||
{
|
||||
char **arg, **new, ***braces;
|
||||
int nbraces = 0;
|
||||
Execarg *e = extra->p = emalloc(sizeof(*e));
|
||||
struct execarg *e = extra->p = emalloc(sizeof(*e));
|
||||
|
||||
for (arg = argv; *arg; arg++)
|
||||
if (!strcmp(*arg, ";"))
|
||||
@ -615,11 +613,11 @@ get_exec_arg(char *argv[], Extra *extra)
|
||||
}
|
||||
|
||||
static char **
|
||||
get_ok_arg(char *argv[], Extra *extra)
|
||||
get_ok_arg(char *argv[], union extra *extra)
|
||||
{
|
||||
char **arg, ***braces;
|
||||
int nbraces = 0;
|
||||
Okarg *o = extra->p = emalloc(sizeof(*o));
|
||||
struct okarg *o = extra->p = emalloc(sizeof(*o));
|
||||
|
||||
for (arg = argv; *arg; arg++)
|
||||
if (!strcmp(*arg, ";"))
|
||||
@ -643,7 +641,7 @@ get_ok_arg(char *argv[], Extra *extra)
|
||||
}
|
||||
|
||||
static char **
|
||||
get_print_arg(char *argv[], Extra *extra)
|
||||
get_print_arg(char *argv[], union extra *extra)
|
||||
{
|
||||
gflags.print = 0;
|
||||
return argv;
|
||||
@ -651,7 +649,7 @@ get_print_arg(char *argv[], Extra *extra)
|
||||
|
||||
/* FIXME: ignoring nanoseconds */
|
||||
static char **
|
||||
get_newer_arg(char *argv[], Extra *extra)
|
||||
get_newer_arg(char *argv[], union extra *extra)
|
||||
{
|
||||
struct stat st;
|
||||
|
||||
@ -663,7 +661,7 @@ get_newer_arg(char *argv[], Extra *extra)
|
||||
}
|
||||
|
||||
static char **
|
||||
get_depth_arg(char *argv[], Extra *extra)
|
||||
get_depth_arg(char *argv[], union extra *extra)
|
||||
{
|
||||
gflags.depth = 1;
|
||||
return argv;
|
||||
@ -673,18 +671,18 @@ get_depth_arg(char *argv[], Extra *extra)
|
||||
* Freeargs
|
||||
*/
|
||||
static void
|
||||
free_extra(Extra extra)
|
||||
free_extra(union extra extra)
|
||||
{
|
||||
free(extra.p);
|
||||
}
|
||||
|
||||
static void
|
||||
free_exec_arg(Extra extra)
|
||||
free_exec_arg(union extra extra)
|
||||
{
|
||||
int status;
|
||||
pid_t pid;
|
||||
char **arg;
|
||||
Execarg *e = extra.p;
|
||||
struct execarg *e = extra.p;
|
||||
|
||||
if (!e->isplus) {
|
||||
free(e->u.s.braces);
|
||||
@ -712,9 +710,9 @@ free_exec_arg(Extra extra)
|
||||
}
|
||||
|
||||
static void
|
||||
free_ok_arg(Extra extra)
|
||||
free_ok_arg(union extra extra)
|
||||
{
|
||||
Okarg *o = extra.p;
|
||||
struct okarg *o = extra.p;
|
||||
|
||||
free(o->braces);
|
||||
free(o);
|
||||
@ -724,7 +722,7 @@ free_ok_arg(Extra extra)
|
||||
* Parsing/Building/Running
|
||||
*/
|
||||
static void
|
||||
fill_narg(char *s, Narg *n)
|
||||
fill_narg(char *s, struct narg *n)
|
||||
{
|
||||
char *end;
|
||||
|
||||
@ -738,10 +736,10 @@ fill_narg(char *s, Narg *n)
|
||||
eprintf("bad number '%s'\n", s);
|
||||
}
|
||||
|
||||
static Pri_info *
|
||||
static struct pri_info *
|
||||
find_primary(char *name)
|
||||
{
|
||||
Pri_info *p;
|
||||
struct pri_info *p;
|
||||
|
||||
for (p = primaries; p->name; p++)
|
||||
if (!strcmp(name, p->name))
|
||||
@ -749,10 +747,10 @@ find_primary(char *name)
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static Op_info *
|
||||
static struct op_info *
|
||||
find_op(char *name)
|
||||
{
|
||||
Op_info *o;
|
||||
struct op_info *o;
|
||||
|
||||
for (o = ops; o->name; o++)
|
||||
if (!strcmp(name, o->name))
|
||||
@ -761,32 +759,32 @@ find_op(char *name)
|
||||
}
|
||||
|
||||
/* given the expression from the command line
|
||||
* 1) convert arguments from strings to Tok and place in an array duplicating
|
||||
* 1) convert arguments from strings to tok and place in an array duplicating
|
||||
* the infix expression given, inserting "-a" where it was omitted
|
||||
* 2) allocate an array to hold the correct number of Tok, and convert from
|
||||
* 2) allocate an array to hold the correct number of tok, and convert from
|
||||
* infix to rpn (using shunting-yard), add -a and -print if necessary
|
||||
* 3) evaluate the rpn filling in left and right pointers to create an
|
||||
* expression tree (Tok are still all contained in the rpn array, just
|
||||
* expression tree (tok are still all contained in the rpn array, just
|
||||
* pointing at eachother)
|
||||
*/
|
||||
static void
|
||||
parse(int argc, char **argv)
|
||||
{
|
||||
Tok infix[2 * argc + 1], *stack[argc], *tok, *rpn, *out, **top;
|
||||
Op_info *op;
|
||||
Pri_info *pri;
|
||||
struct tok infix[2 * argc + 1], *stack[argc], *tok, *rpn, *out, **top;
|
||||
struct op_info *op;
|
||||
struct pri_info *pri;
|
||||
char **arg;
|
||||
int lasttype = -1;
|
||||
size_t ntok = 0;
|
||||
Tok and = { .u.oinfo = find_op("-a"), .type = AND };
|
||||
struct tok and = { .u.oinfo = find_op("-a"), .type = AND };
|
||||
|
||||
gflags.print = 1;
|
||||
|
||||
/* convert argv to infix expression of Tok, inserting in *tok */
|
||||
/* convert argv to infix expression of tok, inserting in *tok */
|
||||
for (arg = argv, tok = infix; *arg; arg++, tok++) {
|
||||
pri = find_primary(*arg);
|
||||
|
||||
if (pri) { /* token is a primary, fill out Tok and get arguments */
|
||||
if (pri) { /* token is a primary, fill out tok and get arguments */
|
||||
if (lasttype == PRIM || lasttype == RPAR) {
|
||||
*tok++ = and;
|
||||
ntok++;
|
||||
@ -862,7 +860,7 @@ parse(int argc, char **argv)
|
||||
* if there was an expression but no -print, -exec, or -ok, add -a -print
|
||||
* in rpn, not infix */
|
||||
if (gflags.print)
|
||||
*out++ = (Tok){ .u.pinfo = find_primary("-print"), .type = PRIM };
|
||||
*out++ = (struct tok){ .u.pinfo = find_primary("-print"), .type = PRIM };
|
||||
if (gflags.print == 2)
|
||||
*out++ = and;
|
||||
|
||||
@ -897,7 +895,7 @@ parse(int argc, char **argv)
|
||||
* NOTE: operator NOT has NULL left side, expression on right side
|
||||
*/
|
||||
static int
|
||||
eval(Tok *tok, Arg *arg)
|
||||
eval(struct tok *tok, struct arg *arg)
|
||||
{
|
||||
int ret;
|
||||
|
||||
@ -921,14 +919,14 @@ eval(Tok *tok, Arg *arg)
|
||||
* recurse
|
||||
*/
|
||||
static void
|
||||
find(char *path, Findhist *hist)
|
||||
find(char *path, struct findhist *hist)
|
||||
{
|
||||
struct stat st;
|
||||
DIR *dir;
|
||||
struct dirent *de;
|
||||
Findhist *f, cur;
|
||||
struct findhist *f, cur;
|
||||
size_t len = strlen(path) + 2; /* null and '/' */
|
||||
Arg arg = { path, &st, { NULL } };
|
||||
struct arg arg = { path, &st, { NULL } };
|
||||
|
||||
if ((gflags.l || (gflags.h && !hist) ? stat(path, &st) : lstat(path, &st)) < 0) {
|
||||
weprintf("failed to stat %s:", path);
|
||||
@ -1000,7 +998,7 @@ main(int argc, char **argv)
|
||||
{
|
||||
char **paths;
|
||||
int npaths;
|
||||
Tok *t;
|
||||
struct tok *t;
|
||||
|
||||
ARGBEGIN {
|
||||
case 'H': gflags.l = !(gflags.h = 1); break;
|
||||
|
||||
18
test.c
18
test.c
@ -38,12 +38,12 @@ static int binary_ge(char *s1, char *s2) { long long a = STOI(s1), b = STOI(s2);
|
||||
static int binary_lt(char *s1, char *s2) { long long a = STOI(s1), b = STOI(s2); return a < b; }
|
||||
static int binary_le(char *s1, char *s2) { long long a = STOI(s1), b = STOI(s2); return a <= b; }
|
||||
|
||||
typedef struct {
|
||||
struct test {
|
||||
char *name;
|
||||
int (*func)();
|
||||
} Test;
|
||||
};
|
||||
|
||||
static Test unary[] = {
|
||||
static struct test unary[] = {
|
||||
{ "-b", unary_b },
|
||||
{ "-c", unary_c },
|
||||
{ "-d", unary_d },
|
||||
@ -66,7 +66,7 @@ static Test unary[] = {
|
||||
{ NULL, NULL },
|
||||
};
|
||||
|
||||
static Test binary[] = {
|
||||
static struct test binary[] = {
|
||||
{ "=" , binary_se },
|
||||
{ "!=" , binary_sn },
|
||||
{ "-eq", binary_eq },
|
||||
@ -79,10 +79,10 @@ static Test binary[] = {
|
||||
{ NULL, NULL },
|
||||
};
|
||||
|
||||
static Test *
|
||||
find_test(Test *tests, char *name)
|
||||
static struct test *
|
||||
find_test(struct test *tests, char *name)
|
||||
{
|
||||
Test *t;
|
||||
struct test *t;
|
||||
|
||||
for (t = tests; t->name; t++)
|
||||
if (!strcmp(t->name, name))
|
||||
@ -105,7 +105,7 @@ onearg(char *argv[])
|
||||
static int
|
||||
twoarg(char *argv[])
|
||||
{
|
||||
Test *t;
|
||||
struct test *t;
|
||||
|
||||
if (!strcmp(argv[0], "!"))
|
||||
return !onearg(argv + 1);
|
||||
@ -120,7 +120,7 @@ twoarg(char *argv[])
|
||||
static int
|
||||
threearg(char *argv[])
|
||||
{
|
||||
Test *t = find_test(binary, argv[1]);
|
||||
struct test *t = find_test(binary, argv[1]);
|
||||
|
||||
if (t)
|
||||
return t->func(argv[0], argv[2]);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user