mirror of git://git.suckless.org/sbase
91 lines
1.5 KiB
C
91 lines
1.5 KiB
C
/* See LICENSE file for copyright and license details. */
|
|
#include <sys/stat.h>
|
|
#include <sys/types.h>
|
|
|
|
#include <fcntl.h>
|
|
#include <limits.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
#include "arg.h"
|
|
#include "util.h"
|
|
|
|
static int aflag;
|
|
|
|
static int
|
|
which(const char *path, const char *name)
|
|
{
|
|
char *ptr, *p;
|
|
size_t i, len;
|
|
struct stat st;
|
|
int dirfd, found = 0;
|
|
|
|
ptr = p = enstrdup(3, path);
|
|
len = strlen(p);
|
|
for (i = 0; i < len + 1; i++) {
|
|
if (ptr[i] != ':' && ptr[i] != '\0')
|
|
continue;
|
|
ptr[i] = '\0';
|
|
if ((dirfd = open(p, O_RDONLY, 0)) >= 0) {
|
|
if (!fstatat(dirfd, name, &st, 0) &&
|
|
S_ISREG(st.st_mode) &&
|
|
!faccessat(dirfd, name, X_OK, 0)) {
|
|
found = 1;
|
|
fputs(p, stdout);
|
|
if (i && ptr[i - 1] != '/')
|
|
fputc('/', stdout);
|
|
puts(name);
|
|
if (!aflag) {
|
|
close(dirfd);
|
|
break;
|
|
}
|
|
}
|
|
close(dirfd);
|
|
}
|
|
p = ptr + i + 1;
|
|
}
|
|
free(ptr);
|
|
|
|
return found;
|
|
}
|
|
|
|
static void
|
|
usage(void)
|
|
{
|
|
eprintf("usage: %s [-a] name ...\n", argv0);
|
|
}
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
char *path;
|
|
int found = 0, foundall = 1;
|
|
|
|
ARGBEGIN {
|
|
case 'a':
|
|
aflag = 1;
|
|
break;
|
|
default:
|
|
usage();
|
|
} ARGEND;
|
|
|
|
if (!argc)
|
|
usage();
|
|
|
|
if (!(path = getenv("PATH")))
|
|
enprintf(3, "$PATH is not set\n");
|
|
|
|
for (; *argv; argc--, argv++) {
|
|
if (which(path, *argv)) {
|
|
found = 1;
|
|
} else {
|
|
weprintf("%s: command not found.\n", *argv);
|
|
foundall = 0;
|
|
}
|
|
}
|
|
|
|
return found ? foundall ? 0 : 1 : 2;
|
|
}
|