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annotate lib/lib.h @ 1320:b2cc738d3cfc draft

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Add mount options to data getmountlist collects.
author Rob Landley <rob@landley.net>
date Tue, 27 May 2014 07:56:51 -0500
parents 313980d3d78c
children 4d898affda0c
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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 */
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6 // llist.c
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7
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8 // All these list types can be handled by the same code because first element
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9 // is always next pointer, so next = (mytype *)&struct. (The payloads are
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10 // named differently to catch using the wrong type early.)
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12 struct string_list {
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13 struct string_list *next;
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14 char str[0];
20
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15 };
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16
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eb46bb5626cb New option parsing infrastructure (doesn't use getopt). Hook it up to
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17 struct arg_list {
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18 struct arg_list *next;
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19 char *arg;
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20 };
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21
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22 struct double_list {
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23 struct double_list *next, *prev;
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24 char *data;
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25 };
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26
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27 void llist_free_arg(void *node);
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28 void llist_free_double(void *node);
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29 void llist_traverse(void *list, void (*using)(void *node));
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ef72a16f4b3a Redo tail closer to the original design. Add more tests for large data sets. (Still no -f support yet.)
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30 void *llist_pop(void *list); // actually void **list
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31 void *dlist_pop(void *list); // actually struct double_list **list
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32 void dlist_add_nomalloc(struct double_list **list, struct double_list *new);
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aaac01796688 Upgrade patch to detect hunks that start after a false start.
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33 struct double_list *dlist_add(struct double_list **list, char *data);
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34
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35 // args.c
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36 void get_optflags(void);
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37
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38 // dirtree.c
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40 // Values returnable from callback function (bitfield, or them together)
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41 // Default with no callback is 0
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42
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43 // Add this node to the tree
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44 #define DIRTREE_SAVE 1
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45 // Recurse into children
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46 #define DIRTREE_RECURSE 2
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47 // Call again after handling all children of this directory
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48 // (Ignored for non-directories, sets linklen = -1 before second call.)
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49 #define DIRTREE_COMEAGAIN 4
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50 // Follow symlinks to directories
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51 #define DIRTREE_SYMFOLLOW 8
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52 // Don't look at any more files in this directory.
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53 #define DIRTREE_ABORT 256
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55 #define DIRTREE_ABORTVAL ((struct dirtree *)1)
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56
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57 struct dirtree {
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58 struct dirtree *next, *parent, *child;
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59 long extra; // place for user to store their stuff (can be pointer)
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60 struct stat st;
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61 char *symlink;
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62 int data; // dirfd for directory, linklen for symlink, -1 = comeagain
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63 char name[];
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64 };
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65
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66 struct dirtree *dirtree_add_node(struct dirtree *p, char *name, int symfollow);
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67 char *dirtree_path(struct dirtree *node, int *plen);
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68 int dirtree_notdotdot(struct dirtree *catch);
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a6a541b7fc34 Add dirtree_parentfd()
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69 int dirtree_parentfd(struct dirtree *node);
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70 struct dirtree *dirtree_handle_callback(struct dirtree *new,
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71 int (*callback)(struct dirtree *node));
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72 void dirtree_recurse(struct dirtree *node,
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73 int (*callback)(struct dirtree *node), int symfollow);
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74 struct dirtree *dirtree_read(char *path, int (*callback)(struct dirtree *node));
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75
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76 // help.c
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77
34ac05521d94 Move guts of help command into show_help() in lib/help.c, with config TOYBOX_HELP controlling infrastructure.
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78 void show_help(void);
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79
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80 // xwrap.c
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81 void xstrncpy(char *dest, char *src, size_t size);
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07693eb46e26 Add xexit() and make error_exit() use it.
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82 void xexit(void) noreturn;
2
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83 void *xmalloc(size_t size);
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266a462ed18c Next drop of toysh, plus more infratructure.
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84 void *xzalloc(size_t size);
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19b5567f0a1b Add readlink, xreadlink(), and change xrealloc() to not fight the stupid
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85 void *xrealloc(void *ptr, size_t size);
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5715eed39575 Correct return types of xstrdup() and xstrndup()
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86 char *xstrndup(char *s, size_t n);
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87 char *xstrdup(char *s);
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88 char *xmprintf(char *format, ...);
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89 void xprintf(char *format, ...);
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90 void xputs(char *s);
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91 void xputc(char c);
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92 void xflush(void);
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93 void xexec_optargs(int skip);
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94 void xexec(char **argv);
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63edd4de94dd Add xaccess()
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95 void xaccess(char *path, int flags);
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96 void xunlink(char *path);
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97 int xcreate(char *path, int flags, int mode);
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98 int xopen(char *path, int flags);
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99 void xclose(int fd);
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100 int xdup(int fd);
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101 FILE *xfdopen(int fd, char *mode);
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102 FILE *xfopen(char *path, char *mode);
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103 size_t xread(int fd, void *buf, size_t len);
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104 void xreadall(int fd, void *buf, size_t len);
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105 void xwrite(int fd, void *buf, size_t len);
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6e03d6a8df23 Add mkswap.
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106 off_t xlseek(int fd, off_t offset, int whence);
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8afe1fde9314 Pass through all the readfile() arguments from xreadfile().
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107 char *xreadfile(char *name, char *buf, off_t len);
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108 int xioctl(int fd, int request, void *data);
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109 char *xgetcwd(void);
95
a636e4d20f13 Add xstat(), read_dirtree(), and read_dirtree_node().
Rob Landley <rob@landley.net>
parents: 75
diff changeset
110 void xstat(char *path, struct stat *st);
708
50d759f8b371 Remove readlink -m for being poorly defined ("readlink -m /dev/null/and/more" answers what question, exactly?), rewrite xabspath() to work right and not depend on realpath, fix subtle longstanding bug in llist_traverse().
Rob Landley <rob@landley.net>
parents: 707
diff changeset
111 char *xabspath(char *path, int exact);
585
1dcd7994abea Add xrealpath() at suggestion of Ashish Briggers.
Rob Landley <rob@landley.net>
parents: 580
diff changeset
112 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
113 void xchdir(char *path);
1156
faf7117c4489 Fix some issues raised (albeit indirectly) by Isaac Dunham.
Rob Landley <rob@landley.net>
parents: 1145
diff changeset
114 void xchroot(char *path);
1129
c644f85444d0 Move xgetpwuid() and xgetgrgid() into xwrap.c
Rob Landley <rob@landley.net>
parents: 1115
diff changeset
115 struct passwd *xgetpwuid(uid_t uid);
c644f85444d0 Move xgetpwuid() and xgetgrgid() into xwrap.c
Rob Landley <rob@landley.net>
parents: 1115
diff changeset
116 struct group *xgetgrgid(gid_t gid);
1130
6df194c6de88 Add xgetpwnam() to lib/xwrap.c.
Rob Landley <rob@landley.net>
parents: 1129
diff changeset
117 struct passwd *xgetpwnam(char *name);
1156
faf7117c4489 Fix some issues raised (albeit indirectly) by Isaac Dunham.
Rob Landley <rob@landley.net>
parents: 1145
diff changeset
118 void xsetuser(struct passwd *pwd);
951
62d59b8aea34 Split lib/xwrap.c from lib/lib.c
Rob Landley <rob@landley.net>
parents: 948
diff changeset
119 char *xreadlink(char *name);
952
ce0519f6457c Add timeout, factoring out common code from sleep.
Rob Landley <rob@landley.net>
parents: 951
diff changeset
120 long xparsetime(char *arg, long units, long *fraction);
1028
58bfd974216d syslogd: cleanup
Felix Janda <felix.janda at posteo.de>
parents: 1011
diff changeset
121 void xpidfile(char *name);
1235
63db77909fc8 Group headers by standard (POSIX or LSB) or function (internationalization, networking). Move headers standards ignore (but which have been there >15 years) to lib/portability.h. Fold xregcomp into lib since it's posix.
Rob Landley <rob@landley.net>
parents: 1219
diff changeset
122 void xregcomp(regex_t *preg, char *rexec, int cflags);
951
62d59b8aea34 Split lib/xwrap.c from lib/lib.c
Rob Landley <rob@landley.net>
parents: 948
diff changeset
123
62d59b8aea34 Split lib/xwrap.c from lib/lib.c
Rob Landley <rob@landley.net>
parents: 948
diff changeset
124 // lib.c
62d59b8aea34 Split lib/xwrap.c from lib/lib.c
Rob Landley <rob@landley.net>
parents: 948
diff changeset
125 void verror_msg(char *msg, int err, va_list va);
62d59b8aea34 Split lib/xwrap.c from lib/lib.c
Rob Landley <rob@landley.net>
parents: 948
diff changeset
126 void error_msg(char *msg, ...);
62d59b8aea34 Split lib/xwrap.c from lib/lib.c
Rob Landley <rob@landley.net>
parents: 948
diff changeset
127 void perror_msg(char *msg, ...);
62d59b8aea34 Split lib/xwrap.c from lib/lib.c
Rob Landley <rob@landley.net>
parents: 948
diff changeset
128 void error_exit(char *msg, ...) noreturn;
62d59b8aea34 Split lib/xwrap.c from lib/lib.c
Rob Landley <rob@landley.net>
parents: 948
diff changeset
129 void perror_exit(char *msg, ...) noreturn;
62d59b8aea34 Split lib/xwrap.c from lib/lib.c
Rob Landley <rob@landley.net>
parents: 948
diff changeset
130 ssize_t readall(int fd, void *buf, size_t len);
62d59b8aea34 Split lib/xwrap.c from lib/lib.c
Rob Landley <rob@landley.net>
parents: 948
diff changeset
131 ssize_t writeall(int fd, void *buf, size_t len);
62d59b8aea34 Split lib/xwrap.c from lib/lib.c
Rob Landley <rob@landley.net>
parents: 948
diff changeset
132 off_t lskip(int fd, off_t offset);
1219
468444e5c7c5 Move mkpathat to lib, remove redundant function used by patch.
Rob Landley <rob@landley.net>
parents: 1197
diff changeset
133 int mkpathat(int atfd, char *dir, mode_t lastmode, int flags);
951
62d59b8aea34 Split lib/xwrap.c from lib/lib.c
Rob Landley <rob@landley.net>
parents: 948
diff changeset
134 struct string_list **splitpath(char *path, struct string_list **list);
1043
acf7bb2b99e2 Introduce libbuf analogous to toybuf but for use by lib/*.c. Change readfile() semantics to be able to read into an existing buffer, or malloc its own if that's NULL.
Rob Landley <rob@landley.net>
parents: 1042
diff changeset
135 char *readfile(char *name, char *buf, off_t len);
951
62d59b8aea34 Split lib/xwrap.c from lib/lib.c
Rob Landley <rob@landley.net>
parents: 948
diff changeset
136 void msleep(long miliseconds);
62d59b8aea34 Split lib/xwrap.c from lib/lib.c
Rob Landley <rob@landley.net>
parents: 948
diff changeset
137 int64_t peek(void *ptr, int size);
62d59b8aea34 Split lib/xwrap.c from lib/lib.c
Rob Landley <rob@landley.net>
parents: 948
diff changeset
138 void poke(void *ptr, uint64_t val, int size);
20
3981c96f9285 Implement which. Add hello world to menuconfig. Wrap the various applet main
Rob Landley <rob@landley.net>
parents: 16
diff changeset
139 struct string_list *find_in_path(char *path, char *filename);
102
aa4fa2543a65 Add atolx() which understands extensions for kilobytes and megabytes and such.
Rob Landley <rob@landley.net>
parents: 97
diff changeset
140 long atolx(char *c);
1131
f9678ea553c8 Oops, cleaned up ifconfig uses atolx_range() instead of get_int_list(). Check that in.
Rob Landley <rob@landley.net>
parents: 1130
diff changeset
141 long atolx_range(char *numstr, long low, long high);
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
142 int numlen(long l);
623
f51beec92738 New infrastructure for od (oops).
Rob Landley <rob@landley.net>
parents: 607
diff changeset
143 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
144 off_t fdlength(int fd);
397
b7afbc6b753a Forgot to check in loopfiles_rw changes needed by truncate.
Rob Landley <rob@landley.net>
parents: 370
diff changeset
145 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
146 void (*function)(int fd, char *name));
185
29e2051296fd Add loopfiles() function, make catv use it.
Rob Landley <rob@landley.net>
parents: 167
diff changeset
147 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
148 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
149 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
150 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
151 int wfchmodat(int rc, char *name, mode_t mode);
209
9a0d4e8a9c61 Patch command.
Rob Landley <rob@landley.net>
parents: 201
diff changeset
152 int copy_tempfile(int fdin, char *name, char **tempname);
9a0d4e8a9c61 Patch command.
Rob Landley <rob@landley.net>
parents: 201
diff changeset
153 void delete_tempfile(int fdin, int fdout, char **tempname);
9a0d4e8a9c61 Patch command.
Rob Landley <rob@landley.net>
parents: 201
diff changeset
154 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
155 void crc_init(unsigned int *crc_table, int little_endian);
1108
fb8467436e6a Tweak terminal_size to never set either to 0, and return true/false whether it could determine at least one coordinate.
Rob Landley <rob@landley.net>
parents: 1089
diff changeset
156 int 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
157 int yesno(char *prompt, int def);
1276
d48bdc1cb017 Switch human_readable() to just outputing decimal kilo/mega/gigabytes, make du use it, move it from lib/pending.c to lib.c.
Rob Landley <rob@landley.net>
parents: 1235
diff changeset
158 int human_readable(char *buf, unsigned long long num);
2
67b517913e56 Infrastructure, first drop of toy shell, and a bit of work on df.
landley@driftwood
parents:
diff changeset
159
883
aca8323e2690 Add posix headers to toynet.h, move xioctl() to lib.c, introduce lib/net.c and move xsocket() to it.
Rob Landley <rob@landley.net>
parents: 870
diff changeset
160 // net.c
aca8323e2690 Add posix headers to toynet.h, move xioctl() to lib.c, introduce lib/net.c and move xsocket() to it.
Rob Landley <rob@landley.net>
parents: 870
diff changeset
161 int xsocket(int domain, int type, int protocol);
aca8323e2690 Add posix headers to toynet.h, move xioctl() to lib.c, introduce lib/net.c and move xsocket() to it.
Rob Landley <rob@landley.net>
parents: 870
diff changeset
162
3
266a462ed18c Next drop of toysh, plus more infratructure.
landley@driftwood
parents: 2
diff changeset
163 // getmountlist.c
2
67b517913e56 Infrastructure, first drop of toy shell, and a bit of work on df.
landley@driftwood
parents:
diff changeset
164 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
165 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
166 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
167 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
168 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
169 char *device;
1320
b2cc738d3cfc Add mount options to data getmountlist collects.
Rob Landley <rob@landley.net>
parents: 1299
diff changeset
170 char *opts;
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
171 char type[0];
2
67b517913e56 Infrastructure, first drop of toy shell, and a bit of work on df.
landley@driftwood
parents:
diff changeset
172 };
67b517913e56 Infrastructure, first drop of toy shell, and a bit of work on df.
landley@driftwood
parents:
diff changeset
173
1033
11cf9b97fae7 Allow getmountlist to read fstab too.
Rob Landley <rob@landley.net>
parents: 1028
diff changeset
174 struct mtab_list *xgetmountlist(char *path);
2
67b517913e56 Infrastructure, first drop of toy shell, and a bit of work on df.
landley@driftwood
parents:
diff changeset
175
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
176 // 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
177
1299
313980d3d78c Add generic_signal() handler, which sets toys.signal and writes byte to toys.signalfd if set.
Rob Landley <rob@landley.net>
parents: 1295
diff changeset
178 void generic_signal(int signal);
643
7bdebd2af1d6 Add signal handler to clean up tempfile.
Rob Landley <rob@landley.net>
parents: 637
diff changeset
179 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
180 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
181 char *num_to_sig(int sig);
551
2548e6e590b2 Add string to mode_t parser
Daniel Walter <d.walter@0x90.at>
parents: 540
diff changeset
182
2548e6e590b2 Add string to mode_t parser
Daniel Walter <d.walter@0x90.at>
parents: 540
diff changeset
183 mode_t string_to_mode(char *mode_str, mode_t base);
916
b92cb3cc9696 Stat cleanup.
Rob Landley <rob@landley.net>
parents: 915
diff changeset
184 void mode_to_string(mode_t mode, char *buf);
1145
80c9df5145fe Move names_to_pid from pending to lib.
Rob Landley <rob@landley.net>
parents: 1131
diff changeset
185 void names_to_pid(char **names, int (*callback)(pid_t pid, char *name));
626
77d94b36aff0 Add passwd by Kyungwan Han.
Rob Landley <rob@landley.net>
parents: 624
diff changeset
186
1235
63db77909fc8 Group headers by standard (POSIX or LSB) or function (internationalization, networking). Move headers standards ignore (but which have been there >15 years) to lib/portability.h. Fold xregcomp into lib since it's posix.
Rob Landley <rob@landley.net>
parents: 1219
diff changeset
187 // Functions in need of further review/cleanup
1115
349424387e22 Break out lib/pending.h from lib/lib.h.
Rob Landley <rob@landley.net>
parents: 1108
diff changeset
188 #include "lib/pending.h"