* "This program is in the Public Domain."
*/
-#include "busybox.h"
#include <sys/types.h>
#include <unistd.h>
#include <ctype.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
-#define BB_DECLARE_EXTERN
-#define bb_need_help
-#include "messages.c"
+#include "busybox.h"
/* test(1) accepts the following grammar:
oexpr ::= aexpr | aexpr "-o" oexpr ;
PAREN
};
-struct t_op {
+static const struct t_op {
const char *op_text;
short op_num, op_type;
-} const ops [] = {
- {"-r", FILRD, UNOP},
- {"-w", FILWR, UNOP},
- {"-x", FILEX, UNOP},
- {"-e", FILEXIST,UNOP},
- {"-f", FILREG, UNOP},
- {"-d", FILDIR, UNOP},
- {"-c", FILCDEV,UNOP},
- {"-b", FILBDEV,UNOP},
- {"-p", FILFIFO,UNOP},
- {"-u", FILSUID,UNOP},
- {"-g", FILSGID,UNOP},
- {"-k", FILSTCK,UNOP},
- {"-s", FILGZ, UNOP},
- {"-t", FILTT, UNOP},
- {"-z", STREZ, UNOP},
- {"-n", STRNZ, UNOP},
- {"-h", FILSYM, UNOP}, /* for backwards compat */
- {"-O", FILUID, UNOP},
- {"-G", FILGID, UNOP},
- {"-L", FILSYM, UNOP},
- {"-S", FILSOCK,UNOP},
- {"=", STREQ, BINOP},
- {"!=", STRNE, BINOP},
- {"<", STRLT, BINOP},
- {">", STRGT, BINOP},
- {"-eq", INTEQ, BINOP},
- {"-ne", INTNE, BINOP},
- {"-ge", INTGE, BINOP},
- {"-gt", INTGT, BINOP},
- {"-le", INTLE, BINOP},
- {"-lt", INTLT, BINOP},
- {"-nt", FILNT, BINOP},
- {"-ot", FILOT, BINOP},
- {"-ef", FILEQ, BINOP},
- {"!", UNOT, BUNOP},
- {"-a", BAND, BBINOP},
- {"-o", BOR, BBINOP},
- {"(", LPAREN, PAREN},
- {")", RPAREN, PAREN},
- {0, 0, 0}
+} ops[] = {
+ {
+ "-r", FILRD, UNOP}, {
+ "-w", FILWR, UNOP}, {
+ "-x", FILEX, UNOP}, {
+ "-e", FILEXIST, UNOP}, {
+ "-f", FILREG, UNOP}, {
+ "-d", FILDIR, UNOP}, {
+ "-c", FILCDEV, UNOP}, {
+ "-b", FILBDEV, UNOP}, {
+ "-p", FILFIFO, UNOP}, {
+ "-u", FILSUID, UNOP}, {
+ "-g", FILSGID, UNOP}, {
+ "-k", FILSTCK, UNOP}, {
+ "-s", FILGZ, UNOP}, {
+ "-t", FILTT, UNOP}, {
+ "-z", STREZ, UNOP}, {
+ "-n", STRNZ, UNOP}, {
+ "-h", FILSYM, UNOP}, /* for backwards compat */
+ {
+ "-O", FILUID, UNOP}, {
+ "-G", FILGID, UNOP}, {
+ "-L", FILSYM, UNOP}, {
+ "-S", FILSOCK, UNOP}, {
+ "=", STREQ, BINOP}, {
+ "!=", STRNE, BINOP}, {
+ "<", STRLT, BINOP}, {
+ ">", STRGT, BINOP}, {
+ "-eq", INTEQ, BINOP}, {
+ "-ne", INTNE, BINOP}, {
+ "-ge", INTGE, BINOP}, {
+ "-gt", INTGT, BINOP}, {
+ "-le", INTLE, BINOP}, {
+ "-lt", INTLT, BINOP}, {
+ "-nt", FILNT, BINOP}, {
+ "-ot", FILOT, BINOP}, {
+ "-ef", FILEQ, BINOP}, {
+ "!", UNOT, BUNOP}, {
+ "-a", BAND, BBINOP}, {
+ "-o", BOR, BBINOP}, {
+ "(", LPAREN, PAREN}, {
+ ")", RPAREN, PAREN}, {
+ 0, 0, 0}
};
static char **t_wp;
static gid_t *group_array = NULL;
static int ngroups;
-static enum token t_lex();
-static int oexpr();
-static int aexpr();
-static int nexpr();
-static int binop();
-static int primary();
-static int filstat();
-static int getn();
-static int newerf();
-static int olderf();
-static int equalf();
-static void syntax();
-static int test_eaccess();
-static int is_a_group_member();
-static void initialize_group_array();
-
-extern int
-test_main(int argc, char** argv)
+static enum token t_lex(char *s);
+static int oexpr(enum token n);
+static int aexpr(enum token n);
+static int nexpr(enum token n);
+static int binop(void);
+static int primary(enum token n);
+static int filstat(char *nm, enum token mode);
+static int getn(const char *s);
+static int newerf(const char *f1, const char *f2);
+static int olderf(const char *f1, const char *f2);
+static int equalf(const char *f1, const char *f2);
+static void syntax(const char *op, const char *msg);
+static int test_eaccess(char *path, int mode);
+static int is_a_group_member(gid_t gid);
+static void initialize_group_array(void);
+
+extern int test_main(int argc, char **argv)
{
- int res;
+ int res;
- if (strcmp(applet_name, "[") == 0) {
+ if (strcmp(bb_applet_name, "[") == 0) {
if (strcmp(argv[--argc], "]"))
- error_msg_and_die("missing ]\n");
+ bb_error_msg_and_die("missing ]");
argv[argc] = NULL;
}
/* Implement special cases from POSIX.2, section 4.62.4 */
switch (argc) {
case 1:
- exit( 1);
+ exit(1);
case 2:
- exit (*argv[1] == '\0');
+ exit(*argv[1] == '\0');
case 3:
if (argv[1][0] == '!' && argv[1][1] == '\0') {
- exit (!(*argv[2] == '\0'));
+ exit(!(*argv[2] == '\0'));
}
break;
case 4:
if (argv[1][0] != '!' || argv[1][1] != '\0') {
- if (t_lex(argv[2]),
- t_wp_op && t_wp_op->op_type == BINOP) {
+ if (t_lex(argv[2]), t_wp_op && t_wp_op->op_type == BINOP) {
t_wp = &argv[1];
- exit (binop() == 0);
+ exit(binop() == 0);
}
}
break;
case 5:
if (argv[1][0] == '!' && argv[1][1] == '\0') {
- if (t_lex(argv[3]),
- t_wp_op && t_wp_op->op_type == BINOP) {
+ if (t_lex(argv[3]), t_wp_op && t_wp_op->op_type == BINOP) {
t_wp = &argv[2];
- exit (!(binop() == 0));
+ exit(!(binop() == 0));
}
}
break;
if (*t_wp != NULL && *++t_wp != NULL)
syntax(*t_wp, "unknown operand");
- return( res);
+ return (res);
}
-static void
-syntax(op, msg)
- char *op;
- char *msg;
+static void syntax(const char *op, const char *msg)
{
- if (op && *op)
- error_msg_and_die("%s: %s\n", op, msg);
- else
- error_msg_and_die("%s\n", msg);
+ if (op && *op) {
+ bb_error_msg_and_die("%s: %s", op, msg);
+ } else {
+ bb_error_msg_and_die("%s", msg);
+ }
}
-static int
-oexpr(n)
- enum token n;
+static int oexpr(enum token n)
{
int res;
res = aexpr(n);
- if (t_lex(*++t_wp) == BOR)
+ if (t_lex(*++t_wp) == BOR) {
return oexpr(t_lex(*++t_wp)) || res;
+ }
t_wp--;
return res;
}
-static int
-aexpr(n)
- enum token n;
+static int aexpr(enum token n)
{
int res;
return res;
}
-static int
-nexpr(n)
- enum token n; /* token */
+static int nexpr(enum token n)
{
if (n == UNOT)
return !nexpr(t_lex(*++t_wp));
return primary(n);
}
-static int
-primary(n)
- enum token n;
+static int primary(enum token n)
{
int res;
- if (n == EOI)
+ if (n == EOI) {
syntax(NULL, "argument expected");
+ }
if (n == LPAREN) {
res = oexpr(t_lex(*++t_wp));
if (t_lex(*++t_wp) != RPAREN)
if (t_lex(t_wp[1]), t_wp_op && t_wp_op->op_type == BINOP) {
return binop();
- }
+ }
return strlen(*t_wp) > 0;
}
-static int
-binop()
+static int binop()
{
const char *opnd1, *opnd2;
struct t_op const *op;
(void) t_lex(*++t_wp);
op = t_wp_op;
- if ((opnd2 = *++t_wp) == (char *)0)
+ if ((opnd2 = *++t_wp) == (char *) 0)
syntax(op->op_text, "argument expected");
-
+
switch (op->op_num) {
case STREQ:
return strcmp(opnd1, opnd2) == 0;
case INTLT:
return getn(opnd1) < getn(opnd2);
case FILNT:
- return newerf (opnd1, opnd2);
+ return newerf(opnd1, opnd2);
case FILOT:
- return olderf (opnd1, opnd2);
+ return olderf(opnd1, opnd2);
case FILEQ:
- return equalf (opnd1, opnd2);
+ return equalf(opnd1, opnd2);
}
/* NOTREACHED */
return 1;
}
-static int
-filstat(nm, mode)
- char *nm;
- enum token mode;
+static int filstat(char *nm, enum token mode)
{
struct stat s;
unsigned int i;
return 0;
}
- if (stat(nm, &s) != 0)
+ if (stat(nm, &s) != 0)
return 0;
switch (mode) {
return 1;
}
-filetype:
+ filetype:
return ((s.st_mode & S_IFMT) == i);
-filebit:
+ filebit:
return ((s.st_mode & i) != 0);
}
-static enum token
-t_lex(s)
- char *s;
+static enum token t_lex(char *s)
{
struct t_op const *op = ops;
if (s == 0) {
- t_wp_op = (struct t_op *)0;
+ t_wp_op = (struct t_op *) 0;
return EOI;
}
while (op->op_text) {
}
op++;
}
- t_wp_op = (struct t_op *)0;
+ t_wp_op = (struct t_op *) 0;
return OPERAND;
}
/* atoi with error detection */
-static int
-getn(s)
- char *s;
+static int getn(const char *s)
{
char *p;
long r;
r = strtol(s, &p, 10);
if (errno != 0)
- error_msg_and_die("%s: out of range\n", s);
+ bb_error_msg_and_die("%s: out of range", s);
while (isspace(*p))
- p++;
-
+ p++;
+
if (*p)
- error_msg_and_die("%s: bad number\n", s);
+ bb_error_msg_and_die("%s: bad number", s);
return (int) r;
}
-static int
-newerf (f1, f2)
-char *f1, *f2;
+static int newerf(const char *f1, const char *f2)
{
struct stat b1, b2;
- return (stat (f1, &b1) == 0 &&
- stat (f2, &b2) == 0 &&
- b1.st_mtime > b2.st_mtime);
+ return (stat(f1, &b1) == 0 &&
+ stat(f2, &b2) == 0 && b1.st_mtime > b2.st_mtime);
}
-static int
-olderf (f1, f2)
-char *f1, *f2;
+static int olderf(const char *f1, const char *f2)
{
struct stat b1, b2;
- return (stat (f1, &b1) == 0 &&
- stat (f2, &b2) == 0 &&
- b1.st_mtime < b2.st_mtime);
+ return (stat(f1, &b1) == 0 &&
+ stat(f2, &b2) == 0 && b1.st_mtime < b2.st_mtime);
}
-static int
-equalf (f1, f2)
-char *f1, *f2;
+static int equalf(const char *f1, const char *f2)
{
struct stat b1, b2;
- return (stat (f1, &b1) == 0 &&
- stat (f2, &b2) == 0 &&
- b1.st_dev == b2.st_dev &&
- b1.st_ino == b2.st_ino);
+ return (stat(f1, &b1) == 0 &&
+ stat(f2, &b2) == 0 &&
+ b1.st_dev == b2.st_dev && b1.st_ino == b2.st_ino);
}
/* Do the same thing access(2) does, but use the effective uid and gid,
and don't make the mistake of telling root that any file is
executable. */
-static int
-test_eaccess (path, mode)
-char *path;
-int mode;
+static int test_eaccess(char *path, int mode)
{
struct stat st;
unsigned int euid = geteuid();
- if (stat (path, &st) < 0)
+ if (stat(path, &st) < 0)
return (-1);
if (euid == 0) {
/* Root can read or write any file. */
if (mode != X_OK)
- return (0);
+ return (0);
/* Root can execute any file that has any one of the execute
bits set. */
return (0);
}
- if (st.st_uid == euid) /* owner */
+ if (st.st_uid == euid) /* owner */
mode <<= 6;
- else if (is_a_group_member (st.st_gid))
+ else if (is_a_group_member(st.st_gid))
mode <<= 3;
if (st.st_mode & mode)
return (-1);
}
-static void
-initialize_group_array ()
+static void initialize_group_array()
{
ngroups = getgroups(0, NULL);
group_array = xrealloc(group_array, ngroups * sizeof(gid_t));
}
/* Return non-zero if GID is one that we have in our groups list. */
-static int
-is_a_group_member (gid)
-gid_t gid;
+static int is_a_group_member(gid_t gid)
{
register int i;
return (1);
if (ngroups == 0)
- initialize_group_array ();
+ initialize_group_array();
/* Search through the list looking for GID. */
for (i = 0; i < ngroups; i++)
projects / oweals / busybox.git / blobdiff