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annotate lib/lib.h @ 698:078138791b5c

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Add cut from Jason Kyungwan Han.
author Rob Landley <rob@landley.net>
date Fri, 16 Nov 2012 12:26:48 -0600
parents 786841fdb1e0
children 977e19296b3f
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fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices.
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1 /* lib.h - header file for lib directory
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2 *
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3 * Copyright 2006 Rob Landley <rob@landley.net>
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4 */
2
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6 // Unfortunately, sizeof() doesn't work in a preprocessor test. TODO.
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7
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8 //#if sizeof(double) <= sizeof(long)
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9 //typedef double FLOAT;
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10 //#else
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11 typedef float FLOAT;
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12 //#endif
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14 // libc generally has this, but the headers are screwed up
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15 ssize_t getline(char **lineptr, size_t *n, FILE *stream);
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17 // llist.c
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18
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19 // All these list types can be handled by the same code because first element
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20 // is always next pointer, so next = (mytype *)&struct.
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21
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22 struct string_list {
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23 struct string_list *next;
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24 char str[0];
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25 };
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27 struct arg_list {
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28 struct arg_list *next;
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29 char *arg;
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30 };
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31
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32 struct double_list {
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33 struct double_list *next, *prev;
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34 char *data;
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35 };
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36
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37 void llist_traverse(void *list, void (*using)(void *data));
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630b2e12db16 Move dlist_add() to lib/llist.c
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38 void *llist_pop(void *list); // actually void **list, but the compiler's dumb
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39 void dlist_add_nomalloc(struct double_list **list, struct double_list *new);
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40 struct double_list *dlist_add(struct double_list **list, char *data);
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42 // args.c
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43 void get_optflags(void);
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44
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45 // dirtree.c
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47 // Values returnable from callback function (bitfield, or them together)
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48 // Default with no callback is 0
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50 // Add this node to the tree
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51 #define DIRTREE_SAVE 1
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52 // Recurse into children
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53 #define DIRTREE_RECURSE 2
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54 // Call again after handling all children of this directory
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55 // (Ignored for non-directories, sets linklen = -1 before second call.)
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56 #define DIRTREE_COMEAGAIN 4
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57 // Follow symlinks to directories
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58 #define DIRTREE_SYMFOLLOW 8
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59 // Don't look at any more files in this directory.
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60 #define DIRTREE_ABORT 256
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62 #define DIRTREE_ABORTVAL ((struct dirtree *)1)
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64 struct dirtree {
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65 struct dirtree *next, *parent, *child;
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66 long extra; // place for user to store their stuff (can be pointer)
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67 struct stat st;
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68 char *symlink;
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69 int data; // dirfd for directory, linklen for symlink, -1 = comeagain
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70 char name[];
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71 };
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72
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73 struct dirtree *dirtree_add_node(int dirfd, char *name, int symfollow);
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74 char *dirtree_path(struct dirtree *node, int *plen);
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75 int dirtree_notdotdot(struct dirtree *catch);
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76 int dirtree_parentfd(struct dirtree *node);
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77 struct dirtree *handle_callback(struct dirtree *new,
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78 int (*callback)(struct dirtree *node));
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79 void dirtree_recurse(struct dirtree *node,
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80 int (*callback)(struct dirtree *node), int symfollow);
565
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81 struct dirtree *dirtree_read(char *path, int (*callback)(struct dirtree *node));
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82
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83 // lib.c
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84 void xstrcpy(char *dest, char *src, size_t size);
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85 void verror_msg(char *msg, int err, va_list va);
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86 void error_msg(char *msg, ...);
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87 void perror_msg(char *msg, ...);
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88 void error_exit(char *msg, ...) noreturn;
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89 void perror_exit(char *msg, ...) noreturn;
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90 void *xmalloc(size_t size);
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91 void *xzalloc(size_t size);
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92 void *xrealloc(void *ptr, size_t size);
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93 char *xstrndup(char *s, size_t n);
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94 char *xstrdup(char *s);
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95 char *xmsprintf(char *format, ...);
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96 void xprintf(char *format, ...);
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97 void xputs(char *s);
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98 void xputc(char c);
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99 void xflush(void);
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100 void xexec(char **argv);
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101 void xaccess(char *path, int flags);
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102 void xunlink(char *path);
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103 int xcreate(char *path, int flags, int mode);
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104 int xopen(char *path, int flags);
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105 void xclose(int fd);
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106 int xdup(int fd);
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107 FILE *xfopen(char *path, char *mode);
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108 ssize_t readall(int fd, void *buf, size_t len);
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109 ssize_t writeall(int fd, void *buf, size_t len);
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parents: 53
diff changeset
110 size_t xread(int fd, void *buf, size_t len);
69efffcacd70 Add fdprintf(). Remove reread() and rewrite() which handle -EINTR, which
Rob Landley <rob@landley.net>
parents: 53
diff changeset
111 void xreadall(int fd, void *buf, size_t len);
69efffcacd70 Add fdprintf(). Remove reread() and rewrite() which handle -EINTR, which
Rob Landley <rob@landley.net>
parents: 53
diff changeset
112 void xwrite(int fd, void *buf, size_t len);
340
6e03d6a8df23 Add mkswap.
Rob Landley <rob@landley.net>
parents: 337
diff changeset
113 off_t xlseek(int fd, off_t offset, int whence);
623
f51beec92738 New infrastructure for od (oops).
Rob Landley <rob@landley.net>
parents: 607
diff changeset
114 off_t lskip(int fd, off_t offset);
311
962bbf7341f8 Tweak from Roberto Foglietta.
Rob Landley <rob@landley.net>
parents: 308
diff changeset
115 char *readfile(char *name);
962bbf7341f8 Tweak from Roberto Foglietta.
Rob Landley <rob@landley.net>
parents: 308
diff changeset
116 char *xreadfile(char *name);
4
732b055e17f7 Add xmsprintf(), xgetcwd(), xgetcwd(), find_in_path().
landley@driftwood
parents: 3
diff changeset
117 char *xgetcwd(void);
95
a636e4d20f13 Add xstat(), read_dirtree(), and read_dirtree_node().
Rob Landley <rob@landley.net>
parents: 75
diff changeset
118 void xstat(char *path, struct stat *st);
16
dd10785b6532 Add xabspath(), is_file_type(), which_in_path(), and find_in_path().
Rob Landley <rob@landley.net>
parents: 8
diff changeset
119 char *xabspath(char *path);
585
1dcd7994abea Add xrealpath() at suggestion of Ashish Briggers.
Rob Landley <rob@landley.net>
parents: 580
diff changeset
120 char *xrealpath(char *path);
292
b4077be6c746 Update mdev to work around the newest sysfs api breakage in the 2.6.25 kernel.
Rob Landley <rob@landley.net>
parents: 284
diff changeset
121 void xchdir(char *path);
216
5697a3f7c8cf Make patch's file add actually work, including directory creating and
Rob Landley <rob@landley.net>
parents: 214
diff changeset
122 void xmkpath(char *path, int mode);
370
c7a26e26ad08 Add TOYBOX_SUID.
Rob Landley <rob@landley.net>
parents: 369
diff changeset
123 void xsetuid(uid_t uid);
20
3981c96f9285 Implement which. Add hello world to menuconfig. Wrap the various applet main
Rob Landley <rob@landley.net>
parents: 16
diff changeset
124 struct string_list *find_in_path(char *path, char *filename);
7
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices.
landley@driftwood
parents: 4
diff changeset
125 void utoa_to_buf(unsigned n, char *buf, unsigned buflen);
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices.
landley@driftwood
parents: 4
diff changeset
126 void itoa_to_buf(int n, char *buf, unsigned buflen);
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices.
landley@driftwood
parents: 4
diff changeset
127 char *utoa(unsigned n);
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices.
landley@driftwood
parents: 4
diff changeset
128 char *itoa(int n);
102
aa4fa2543a65 Add atolx() which understands extensions for kilobytes and megabytes and such.
Rob Landley <rob@landley.net>
parents: 97
diff changeset
129 long atolx(char *c);
565
44abf4d901f3 Rewrite dirtree so we don't need readdir, scandir, and fts.h. Rewrite ls (from scratch) to use new dirtree infrastructure. (This breaks everything else that currently uses dirtree.)
Rob Landley <rob@landley.net>
parents: 551
diff changeset
130 int numlen(long l);
623
f51beec92738 New infrastructure for od (oops).
Rob Landley <rob@landley.net>
parents: 607
diff changeset
131 int stridx(char *haystack, char needle);
75
89ca591a9236 More random progress on mke2fs. Nothing to see yet.
Rob Landley <rob@landley.net>
parents: 70
diff changeset
132 off_t fdlength(int fd);
115
19b5567f0a1b Add readlink, xreadlink(), and change xrealloc() to not fight the stupid
Rob Landley <rob@landley.net>
parents: 102
diff changeset
133 char *xreadlink(char *name);
397
b7afbc6b753a Forgot to check in loopfiles_rw changes needed by truncate.
Rob Landley <rob@landley.net>
parents: 370
diff changeset
134 void loopfiles_rw(char **argv, int flags, int permissions, int failok,
694
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 658
diff changeset
135 void (*function)(int fd, char *name));
185
29e2051296fd Add loopfiles() function, make catv use it.
Rob Landley <rob@landley.net>
parents: 167
diff changeset
136 void loopfiles(char **argv, void (*function)(int fd, char *name));
284
603275a05524 Teach get_rawline() to continue until a configurable char, and xstrndup()
Rob Landley <rob@landley.net>
parents: 263
diff changeset
137 char *get_rawline(int fd, long *plen, char end);
201
5d523752715a Start of "patch" support. Writes to stdout at the moment.
Rob Landley <rob@landley.net>
parents: 185
diff changeset
138 char *get_line(int fd);
5d523752715a Start of "patch" support. Writes to stdout at the moment.
Rob Landley <rob@landley.net>
parents: 185
diff changeset
139 void xsendfile(int in, int out);
590
7becb497c3c4 Update chmod to work with new dirtree, and fix bugs in string_to_mode().
Rob Landley <rob@landley.net>
parents: 589
diff changeset
140 int wfchmodat(int rc, char *name, mode_t mode);
209
9a0d4e8a9c61 Patch command.
Rob Landley <rob@landley.net>
parents: 201
diff changeset
141 int copy_tempfile(int fdin, char *name, char **tempname);
9a0d4e8a9c61 Patch command.
Rob Landley <rob@landley.net>
parents: 201
diff changeset
142 void delete_tempfile(int fdin, int fdout, char **tempname);
9a0d4e8a9c61 Patch command.
Rob Landley <rob@landley.net>
parents: 201
diff changeset
143 void replace_tempfile(int fdin, int fdout, char **tempname);
337
aaafa1ceaa91 Add -N, -I, -L, and -P options to cksum.
Rob Landley <rob@landley.net>
parents: 334
diff changeset
144 void crc_init(unsigned int *crc_table, int little_endian);
419
af0cca0aba9d Quick and dirty terminal_size() and yesno() functions, both of which need to be improved.
Rob Landley <rob@landley.net>
parents: 417
diff changeset
145 void terminal_size(unsigned *x, unsigned *y);
503
3b9dea897dc0 Upgrade yesno() and make cp -i use it.
Rob Landley <rob@landley.net>
parents: 498
diff changeset
146 int yesno(char *prompt, int def);
478
7f292460d268 And again, I forgot to check in a file. Oops.
Rob Landley <rob@landley.net>
parents: 475
diff changeset
147 void for_each_pid_with_name_in(char **names, void (*callback)(pid_t pid));
419
af0cca0aba9d Quick and dirty terminal_size() and yesno() functions, both of which need to be improved.
Rob Landley <rob@landley.net>
parents: 417
diff changeset
148
2
67b517913e56 Infrastructure, first drop of toy shell, and a bit of work on df.
landley@driftwood
parents:
diff changeset
149
3
266a462ed18c Next drop of toysh, plus more infratructure.
landley@driftwood
parents: 2
diff changeset
150 // getmountlist.c
2
67b517913e56 Infrastructure, first drop of toy shell, and a bit of work on df.
landley@driftwood
parents:
diff changeset
151 struct mtab_list {
694
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 658
diff changeset
152 struct mtab_list *next;
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 658
diff changeset
153 struct stat stat;
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 658
diff changeset
154 struct statvfs statvfs;
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 658
diff changeset
155 char *dir;
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 658
diff changeset
156 char *device;
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 658
diff changeset
157 char type[0];
2
67b517913e56 Infrastructure, first drop of toy shell, and a bit of work on df.
landley@driftwood
parents:
diff changeset
158 };
67b517913e56 Infrastructure, first drop of toy shell, and a bit of work on df.
landley@driftwood
parents:
diff changeset
159
67b517913e56 Infrastructure, first drop of toy shell, and a bit of work on df.
landley@driftwood
parents:
diff changeset
160 struct mtab_list *getmountlist(int die);
67b517913e56 Infrastructure, first drop of toy shell, and a bit of work on df.
landley@driftwood
parents:
diff changeset
161
64
67ee3a0b76e1 In bunzip replace setjmp/longjmp handling with error_exit(), replace string
Rob Landley <rob@landley.net>
parents: 63
diff changeset
162 void bunzipStream(int src_fd, int dst_fd);
498
c9aaceccd6bd Factor out common code between killall/kill and move it to lib/lib.c, plus cleanups on kill.c.
Rob Landley <rob@landley.net>
parents: 478
diff changeset
163
c9aaceccd6bd Factor out common code between killall/kill and move it to lib/lib.c, plus cleanups on kill.c.
Rob Landley <rob@landley.net>
parents: 478
diff changeset
164 // signal
c9aaceccd6bd Factor out common code between killall/kill and move it to lib/lib.c, plus cleanups on kill.c.
Rob Landley <rob@landley.net>
parents: 478
diff changeset
165
643
7bdebd2af1d6 Add signal handler to clean up tempfile.
Rob Landley <rob@landley.net>
parents: 637
diff changeset
166 void sigatexit(void *handler);
498
c9aaceccd6bd Factor out common code between killall/kill and move it to lib/lib.c, plus cleanups on kill.c.
Rob Landley <rob@landley.net>
parents: 478
diff changeset
167 int sig_to_num(char *pidstr);
c9aaceccd6bd Factor out common code between killall/kill and move it to lib/lib.c, plus cleanups on kill.c.
Rob Landley <rob@landley.net>
parents: 478
diff changeset
168 char *num_to_sig(int sig);
551
2548e6e590b2 Add string to mode_t parser
Daniel Walter <d.walter@0x90.at>
parents: 540
diff changeset
169
2548e6e590b2 Add string to mode_t parser
Daniel Walter <d.walter@0x90.at>
parents: 540
diff changeset
170 mode_t string_to_mode(char *mode_str, mode_t base);
626
77d94b36aff0 Add passwd by Kyungwan Han.
Rob Landley <rob@landley.net>
parents: 624
diff changeset
171
77d94b36aff0 Add passwd by Kyungwan Han.
Rob Landley <rob@landley.net>
parents: 624
diff changeset
172 // password helper functions
637
9aeea680acc7 Use "_password" instead of "_passwd" for names in lib/password.c.
Rob Landley <rob@landley.net>
parents: 626
diff changeset
173 int read_password(char * buff, int buflen, char* mesg);
9aeea680acc7 Use "_password" instead of "_passwd" for names in lib/password.c.
Rob Landley <rob@landley.net>
parents: 626
diff changeset
174 int update_password(char *filename, char* username, char* encrypted);
626
77d94b36aff0 Add passwd by Kyungwan Han.
Rob Landley <rob@landley.net>
parents: 624
diff changeset
175
658
2b957eaa00c7 Add du command.
Ashwini Kumar <ak.ashwini@gmail.com>
parents: 643
diff changeset
176 // du helper functions
2b957eaa00c7 Add du command.
Ashwini Kumar <ak.ashwini@gmail.com>
parents: 643
diff changeset
177 char* make_human_readable(unsigned long long size, unsigned long unit);
698
078138791b5c Add cut from Jason Kyungwan Han.
Rob Landley <rob@landley.net>
parents: 694
diff changeset
178
078138791b5c Add cut from Jason Kyungwan Han.
Rob Landley <rob@landley.net>
parents: 694
diff changeset
179 // cut helper functions
078138791b5c Add cut from Jason Kyungwan Han.
Rob Landley <rob@landley.net>
parents: 694
diff changeset
180 unsigned long get_int_value(const char *numstr, unsigned lowrange, unsigned highrange);