cosmopolitan/examples/ls.c

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#if 0
/*─────────────────────────────────────────────────────────────────╗
To the extent possible under law, Justine Tunney has waived
all copyright and related or neighboring rights to this file,
as it is written in the following disclaimers:
http://unlicense.org/ │
http://creativecommons.org/publicdomain/zero/1.0/ │
*/
#endif
#include "libc/calls/calls.h"
#include "libc/calls/struct/dirent.h"
#include "libc/calls/struct/stat.h"
#include "libc/log/check.h"
#include "libc/runtime/gc.h"
#include "libc/stdio/stdio.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/dt.h"
#include "libc/x/x.h"
struct stat st;
const char *TypeToString(uint8_t type) {
switch (type) {
case DT_UNKNOWN:
return "DT_UNKNOWN";
case DT_FIFO:
return "DT_FIFO";
case DT_CHR:
return "DT_CHR";
case DT_DIR:
return "DT_DIR";
case DT_BLK:
return "DT_BLK";
case DT_REG:
return "DT_REG";
case DT_LNK:
return "DT_LNK";
case DT_SOCK:
return "DT_SOCK";
default:
return "UNKNOWN";
}
}
void List(const char *path) {
DIR *d;
struct dirent *e;
const char *vpath;
if (strcmp(path, ".") == 0) {
vpath = "";
} else if (!endswith(path, "/")) {
vpath = gc(xasprintf("%s/", path));
} else {
vpath = path;
}
if (stat(path, &st) != -1) {
if (S_ISDIR(st.st_mode)) {
CHECK((d = opendir(path)));
while ((e = readdir(d))) {
printf("0x%016x 0x%016x %-10s %s%s\n", e->d_ino, e->d_off,
TypeToString(e->d_type), vpath, e->d_name);
}
closedir(d);
} else {
printf("%s\n", path);
}
} else {
fprintf(stderr, "not found: %s\n", path);
}
}
int main(int argc, char *argv[]) {
int i;
if (argc == 1) {
List(".");
} else {
for (i = 1; i < argc; ++i) {
List(argv[i]);
}
}
return 0;
}