aboutsummaryrefslogtreecommitdiff
path: root/lib/lib.h
blob: 18c0155f8fb2871c3b2f99271ccedfb1f3ce57f2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
/* lib.h - header file for lib directory
 *
 * Copyright 2006 Rob Landley <rob@landley.net>
 */

// Unfortunately, sizeof() doesn't work in a preprocessor test.  TODO.

//#if sizeof(double) <= sizeof(long)
//typedef double FLOAT;
//#else
typedef float FLOAT;
//#endif

// libc generally has this, but the headers are screwed up
ssize_t getline(char **lineptr, size_t *n, FILE *stream);

// llist.c

// All these list types can be handled by the same code because first element
// is always next pointer, so next = (mytype *)&struct. (The payloads are
// named differently to catch using the wrong type early.)

struct string_list {
  struct string_list *next;
  char str[0];
};

struct arg_list {
  struct arg_list *next;
  char *arg;
};

struct double_list {
  struct double_list *next, *prev;
  char *data;
};

void llist_traverse(void *list, void (*using)(void *data));
void *llist_pop(void *list);  // actually void **list, but the compiler's dumb
void dlist_add_nomalloc(struct double_list **list, struct double_list *new);
struct double_list *dlist_add(struct double_list **list, char *data);

// args.c
void get_optflags(void);

// dirtree.c

// Values returnable from callback function (bitfield, or them together)
// Default with no callback is 0

// Add this node to the tree
#define DIRTREE_SAVE         1
// Recurse into children
#define DIRTREE_RECURSE      2
// Call again after handling all children of this directory
// (Ignored for non-directories, sets linklen = -1 before second call.)
#define DIRTREE_COMEAGAIN    4
// Follow symlinks to directories
#define DIRTREE_SYMFOLLOW    8
// Don't look at any more files in this directory.
#define DIRTREE_ABORT      256

#define DIRTREE_ABORTVAL ((struct dirtree *)1)

struct dirtree {
  struct dirtree *next, *parent, *child;
  long extra; // place for user to store their stuff (can be pointer)
  struct stat st;
  char *symlink;
  int data;  // dirfd for directory, linklen for symlink, -1 = comeagain
  char name[];
};

struct dirtree *dirtree_add_node(struct dirtree *p, char *name, int symfollow);
char *dirtree_path(struct dirtree *node, int *plen);
int dirtree_notdotdot(struct dirtree *catch);
int dirtree_parentfd(struct dirtree *node);
struct dirtree *dirtree_handle_callback(struct dirtree *new,
  int (*callback)(struct dirtree *node));
void dirtree_recurse(struct dirtree *node,
  int (*callback)(struct dirtree *node), int symfollow);
struct dirtree *dirtree_read(char *path, int (*callback)(struct dirtree *node));

// help.c

void show_help(void);

// lib.c
void xstrncpy(char *dest, char *src, size_t size);
void verror_msg(char *msg, int err, va_list va);
void error_msg(char *msg, ...);
void perror_msg(char *msg, ...);
void error_exit(char *msg, ...) noreturn;
void perror_exit(char *msg, ...) noreturn;
void *xmalloc(size_t size);
void *xzalloc(size_t size);
void *xrealloc(void *ptr, size_t size);
char *xstrndup(char *s, size_t n);
char *xstrdup(char *s);
char *xmsprintf(char *format, ...);
void xprintf(char *format, ...);
void xputs(char *s);
void xputc(char c);
void xflush(void);
void xexec(char **argv);
void xaccess(char *path, int flags);
void xunlink(char *path);
int xcreate(char *path, int flags, int mode);
int xopen(char *path, int flags);
void xclose(int fd);
int xdup(int fd);
FILE *xfopen(char *path, char *mode);
ssize_t readall(int fd, void *buf, size_t len);
ssize_t writeall(int fd, void *buf, size_t len);
size_t xread(int fd, void *buf, size_t len);
void xreadall(int fd, void *buf, size_t len);
void xwrite(int fd, void *buf, size_t len);
off_t xlseek(int fd, off_t offset, int whence);
off_t lskip(int fd, off_t offset);
char *readfile(char *name);
char *xreadfile(char *name);
char *xgetcwd(void);
void xstat(char *path, struct stat *st);
char *xabspath(char *path, int exact);
char *xrealpath(char *path);
void xchdir(char *path);
void xmkpath(char *path, int mode);
void xsetuid(uid_t uid);
struct string_list *find_in_path(char *path, char *filename);
void utoa_to_buf(unsigned n, char *buf, unsigned buflen);
void itoa_to_buf(int n, char *buf, unsigned buflen);
char *utoa(unsigned n);
char *itoa(int n);
long atolx(char *c);
int numlen(long l);
int stridx(char *haystack, char needle);
off_t fdlength(int fd);
char *xreadlink(char *name);
void loopfiles_rw(char **argv, int flags, int permissions, int failok,
  void (*function)(int fd, char *name));
void loopfiles(char **argv, void (*function)(int fd, char *name));
char *get_rawline(int fd, long *plen, char end);
char *get_line(int fd);
void xsendfile(int in, int out);
int wfchmodat(int rc, char *name, mode_t mode);
int copy_tempfile(int fdin, char *name, char **tempname);
void delete_tempfile(int fdin, int fdout, char **tempname);
void replace_tempfile(int fdin, int fdout, char **tempname);
void crc_init(unsigned int *crc_table, int little_endian);
void terminal_size(unsigned *x, unsigned *y);
int yesno(char *prompt, int def);
void for_each_pid_with_name_in(char **names, int (*callback)(pid_t pid, char *name));
unsigned long xstrtoul(const char *nptr, char **endptr, int base);

// getmountlist.c
struct mtab_list {
  struct mtab_list *next;
  struct stat stat;
  struct statvfs statvfs;
  char *dir;
  char *device;
  char type[0];
};

struct mtab_list *getmountlist(int die);

void bunzipStream(int src_fd, int dst_fd);

// signal

void sigatexit(void *handler);
int sig_to_num(char *pidstr);
char *num_to_sig(int sig);

mode_t string_to_mode(char *mode_str, mode_t base);

// password helper functions
int read_password(char * buff, int buflen, char* mesg);
int update_password(char *filename, char* username, char* encrypted);

// du helper functions
char* make_human_readable(unsigned long long size, unsigned long unit);

// cut helper functions
unsigned long get_int_value(const char *numstr, unsigned lowrange, unsigned highrange);