diff options
author | Jeff Dike <jdike@addtoit.com> | 2007-10-16 04:27:00 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-16 12:43:05 -0400 |
commit | ba180fd437156f7fd8cfb2fdd021d949eeef08d6 (patch) | |
tree | b9f38b9cdd7a5b1aacf00341d1948314663c5871 /arch/um/os-Linux/umid.c | |
parent | 77bf4400319db9d2a8af6b00c2be6faa0f3d07cb (diff) |
uml: style fixes pass 3
Formatting changes in the files which have been changed in the course
of folding foo_skas functions into their callers. These include:
copyright updates
header file trimming
style fixes
adding severity to printks
These changes should be entirely non-functional.
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/um/os-Linux/umid.c')
-rw-r--r-- | arch/um/os-Linux/umid.c | 136 |
1 files changed, 74 insertions, 62 deletions
diff --git a/arch/um/os-Linux/umid.c b/arch/um/os-Linux/umid.c index e36541e5ec00..106fa8641553 100644 --- a/arch/um/os-Linux/umid.c +++ b/arch/um/os-Linux/umid.c | |||
@@ -1,14 +1,19 @@ | |||
1 | /* | ||
2 | * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) | ||
3 | * Licensed under the GPL | ||
4 | */ | ||
5 | |||
1 | #include <stdio.h> | 6 | #include <stdio.h> |
2 | #include <unistd.h> | ||
3 | #include <stdlib.h> | 7 | #include <stdlib.h> |
4 | #include <string.h> | 8 | #include <dirent.h> |
5 | #include <errno.h> | 9 | #include <errno.h> |
10 | #include <fcntl.h> | ||
6 | #include <signal.h> | 11 | #include <signal.h> |
7 | #include <dirent.h> | 12 | #include <string.h> |
8 | #include <sys/fcntl.h> | 13 | #include <unistd.h> |
9 | #include <sys/stat.h> | 14 | #include <sys/stat.h> |
10 | #include <sys/param.h> | ||
11 | #include "init.h" | 15 | #include "init.h" |
16 | #include "kern_constants.h" | ||
12 | #include "os.h" | 17 | #include "os.h" |
13 | #include "user.h" | 18 | #include "user.h" |
14 | 19 | ||
@@ -27,13 +32,13 @@ static int __init make_uml_dir(void) | |||
27 | char dir[512] = { '\0' }; | 32 | char dir[512] = { '\0' }; |
28 | int len, err; | 33 | int len, err; |
29 | 34 | ||
30 | if(*uml_dir == '~'){ | 35 | if (*uml_dir == '~') { |
31 | char *home = getenv("HOME"); | 36 | char *home = getenv("HOME"); |
32 | 37 | ||
33 | err = -ENOENT; | 38 | err = -ENOENT; |
34 | if(home == NULL){ | 39 | if (home == NULL) { |
35 | printk("make_uml_dir : no value in environment for " | 40 | printk(UM_KERN_ERR "make_uml_dir : no value in " |
36 | "$HOME\n"); | 41 | "environment for $HOME\n"); |
37 | goto err; | 42 | goto err; |
38 | } | 43 | } |
39 | strlcpy(dir, home, sizeof(dir)); | 44 | strlcpy(dir, home, sizeof(dir)); |
@@ -52,7 +57,7 @@ static int __init make_uml_dir(void) | |||
52 | } | 57 | } |
53 | strcpy(uml_dir, dir); | 58 | strcpy(uml_dir, dir); |
54 | 59 | ||
55 | if((mkdir(uml_dir, 0777) < 0) && (errno != EEXIST)){ | 60 | if ((mkdir(uml_dir, 0777) < 0) && (errno != EEXIST)) { |
56 | printf("Failed to mkdir '%s': %s\n", uml_dir, strerror(errno)); | 61 | printf("Failed to mkdir '%s': %s\n", uml_dir, strerror(errno)); |
57 | err = -errno; | 62 | err = -errno; |
58 | goto err_free; | 63 | goto err_free; |
@@ -69,8 +74,8 @@ err: | |||
69 | /* | 74 | /* |
70 | * Unlinks the files contained in @dir and then removes @dir. | 75 | * Unlinks the files contained in @dir and then removes @dir. |
71 | * Doesn't handle directory trees, so it's not like rm -rf, but almost such. We | 76 | * Doesn't handle directory trees, so it's not like rm -rf, but almost such. We |
72 | * ignore ENOENT errors for anything (they happen, strangely enough - possibly due | 77 | * ignore ENOENT errors for anything (they happen, strangely enough - possibly |
73 | * to races between multiple dying UML threads). | 78 | * due to races between multiple dying UML threads). |
74 | */ | 79 | */ |
75 | static int remove_files_and_dir(char *dir) | 80 | static int remove_files_and_dir(char *dir) |
76 | { | 81 | { |
@@ -115,7 +120,8 @@ out: | |||
115 | return ret; | 120 | return ret; |
116 | } | 121 | } |
117 | 122 | ||
118 | /* This says that there isn't already a user of the specified directory even if | 123 | /* |
124 | * This says that there isn't already a user of the specified directory even if | ||
119 | * there are errors during the checking. This is because if these errors | 125 | * there are errors during the checking. This is because if these errors |
120 | * happen, the directory is unusable by the pre-existing UML, so we might as | 126 | * happen, the directory is unusable by the pre-existing UML, so we might as |
121 | * well take it over. This could happen either by | 127 | * well take it over. This could happen either by |
@@ -133,44 +139,45 @@ static inline int is_umdir_used(char *dir) | |||
133 | int dead, fd, p, n, err; | 139 | int dead, fd, p, n, err; |
134 | 140 | ||
135 | n = snprintf(file, sizeof(file), "%s/pid", dir); | 141 | n = snprintf(file, sizeof(file), "%s/pid", dir); |
136 | if(n >= sizeof(file)){ | 142 | if (n >= sizeof(file)) { |
137 | printk("is_umdir_used - pid filename too long\n"); | 143 | printk(UM_KERN_ERR "is_umdir_used - pid filename too long\n"); |
138 | err = -E2BIG; | 144 | err = -E2BIG; |
139 | goto out; | 145 | goto out; |
140 | } | 146 | } |
141 | 147 | ||
142 | dead = 0; | 148 | dead = 0; |
143 | fd = open(file, O_RDONLY); | 149 | fd = open(file, O_RDONLY); |
144 | if(fd < 0) { | 150 | if (fd < 0) { |
145 | fd = -errno; | 151 | fd = -errno; |
146 | if(fd != -ENOENT){ | 152 | if (fd != -ENOENT) { |
147 | printk("is_umdir_used : couldn't open pid file '%s', " | 153 | printk(UM_KERN_ERR "is_umdir_used : couldn't open pid " |
148 | "err = %d\n", file, -fd); | 154 | "file '%s', err = %d\n", file, -fd); |
149 | } | 155 | } |
150 | goto out; | 156 | goto out; |
151 | } | 157 | } |
152 | 158 | ||
153 | err = 0; | 159 | err = 0; |
154 | n = read(fd, pid, sizeof(pid)); | 160 | n = read(fd, pid, sizeof(pid)); |
155 | if(n < 0){ | 161 | if (n < 0) { |
156 | printk("is_umdir_used : couldn't read pid file '%s', " | 162 | printk(UM_KERN_ERR "is_umdir_used : couldn't read pid file " |
157 | "err = %d\n", file, errno); | 163 | "'%s', err = %d\n", file, errno); |
158 | goto out_close; | 164 | goto out_close; |
159 | } else if(n == 0){ | 165 | } else if (n == 0) { |
160 | printk("is_umdir_used : couldn't read pid file '%s', " | 166 | printk(UM_KERN_ERR "is_umdir_used : couldn't read pid file " |
161 | "0-byte read\n", file); | 167 | "'%s', 0-byte read\n", file); |
162 | goto out_close; | 168 | goto out_close; |
163 | } | 169 | } |
164 | 170 | ||
165 | p = strtoul(pid, &end, 0); | 171 | p = strtoul(pid, &end, 0); |
166 | if(end == pid){ | 172 | if (end == pid) { |
167 | printk("is_umdir_used : couldn't parse pid file '%s', " | 173 | printk(UM_KERN_ERR "is_umdir_used : couldn't parse pid file " |
168 | "errno = %d\n", file, errno); | 174 | "'%s', errno = %d\n", file, errno); |
169 | goto out_close; | 175 | goto out_close; |
170 | } | 176 | } |
171 | 177 | ||
172 | if((kill(p, 0) == 0) || (errno != ESRCH)){ | 178 | if ((kill(p, 0) == 0) || (errno != ESRCH)) { |
173 | printk("umid \"%s\" is already in use by pid %d\n", umid, p); | 179 | printk(UM_KERN_ERR "umid \"%s\" is already in use by pid %d\n", |
180 | umid, p); | ||
174 | return 1; | 181 | return 1; |
175 | } | 182 | } |
176 | 183 | ||
@@ -194,8 +201,8 @@ static int umdir_take_if_dead(char *dir) | |||
194 | 201 | ||
195 | ret = remove_files_and_dir(dir); | 202 | ret = remove_files_and_dir(dir); |
196 | if (ret) { | 203 | if (ret) { |
197 | printk("is_umdir_used - remove_files_and_dir failed with " | 204 | printk(UM_KERN_ERR "is_umdir_used - remove_files_and_dir " |
198 | "err = %d\n", ret); | 205 | "failed with err = %d\n", ret); |
199 | } | 206 | } |
200 | return ret; | 207 | return ret; |
201 | } | 208 | } |
@@ -206,27 +213,28 @@ static void __init create_pid_file(void) | |||
206 | char pid[sizeof("nnnnn\0")]; | 213 | char pid[sizeof("nnnnn\0")]; |
207 | int fd, n; | 214 | int fd, n; |
208 | 215 | ||
209 | if(umid_file_name("pid", file, sizeof(file))) | 216 | if (umid_file_name("pid", file, sizeof(file))) |
210 | return; | 217 | return; |
211 | 218 | ||
212 | fd = open(file, O_RDWR | O_CREAT | O_EXCL, 0644); | 219 | fd = open(file, O_RDWR | O_CREAT | O_EXCL, 0644); |
213 | if(fd < 0){ | 220 | if (fd < 0) { |
214 | printk("Open of machine pid file \"%s\" failed: %s\n", | 221 | printk(UM_KERN_ERR "Open of machine pid file \"%s\" failed: " |
215 | file, strerror(errno)); | 222 | "%s\n", file, strerror(errno)); |
216 | return; | 223 | return; |
217 | } | 224 | } |
218 | 225 | ||
219 | snprintf(pid, sizeof(pid), "%d\n", getpid()); | 226 | snprintf(pid, sizeof(pid), "%d\n", getpid()); |
220 | n = write(fd, pid, strlen(pid)); | 227 | n = write(fd, pid, strlen(pid)); |
221 | if(n != strlen(pid)) | 228 | if (n != strlen(pid)) |
222 | printk("Write of pid file failed - err = %d\n", errno); | 229 | printk(UM_KERN_ERR "Write of pid file failed - err = %d\n", |
230 | errno); | ||
223 | 231 | ||
224 | close(fd); | 232 | close(fd); |
225 | } | 233 | } |
226 | 234 | ||
227 | int __init set_umid(char *name) | 235 | int __init set_umid(char *name) |
228 | { | 236 | { |
229 | if(strlen(name) > UMID_LEN - 1) | 237 | if (strlen(name) > UMID_LEN - 1) |
230 | return -E2BIG; | 238 | return -E2BIG; |
231 | 239 | ||
232 | strlcpy(umid, name, sizeof(umid)); | 240 | strlcpy(umid, name, sizeof(umid)); |
@@ -242,18 +250,18 @@ int __init make_umid(void) | |||
242 | int fd, err; | 250 | int fd, err; |
243 | char tmp[256]; | 251 | char tmp[256]; |
244 | 252 | ||
245 | if(umid_setup) | 253 | if (umid_setup) |
246 | return 0; | 254 | return 0; |
247 | 255 | ||
248 | make_uml_dir(); | 256 | make_uml_dir(); |
249 | 257 | ||
250 | if(*umid == '\0'){ | 258 | if (*umid == '\0') { |
251 | strlcpy(tmp, uml_dir, sizeof(tmp)); | 259 | strlcpy(tmp, uml_dir, sizeof(tmp)); |
252 | strlcat(tmp, "XXXXXX", sizeof(tmp)); | 260 | strlcat(tmp, "XXXXXX", sizeof(tmp)); |
253 | fd = mkstemp(tmp); | 261 | fd = mkstemp(tmp); |
254 | if(fd < 0){ | 262 | if (fd < 0) { |
255 | printk("make_umid - mkstemp(%s) failed: %s\n", | 263 | printk(UM_KERN_ERR "make_umid - mkstemp(%s) failed: " |
256 | tmp, strerror(errno)); | 264 | "%s\n", tmp, strerror(errno)); |
257 | err = -errno; | 265 | err = -errno; |
258 | goto err; | 266 | goto err; |
259 | } | 267 | } |
@@ -262,11 +270,12 @@ int __init make_umid(void) | |||
262 | 270 | ||
263 | set_umid(&tmp[strlen(uml_dir)]); | 271 | set_umid(&tmp[strlen(uml_dir)]); |
264 | 272 | ||
265 | /* There's a nice tiny little race between this unlink and | 273 | /* |
274 | * There's a nice tiny little race between this unlink and | ||
266 | * the mkdir below. It'd be nice if there were a mkstemp | 275 | * the mkdir below. It'd be nice if there were a mkstemp |
267 | * for directories. | 276 | * for directories. |
268 | */ | 277 | */ |
269 | if(unlink(tmp)){ | 278 | if (unlink(tmp)) { |
270 | err = -errno; | 279 | err = -errno; |
271 | goto err; | 280 | goto err; |
272 | } | 281 | } |
@@ -274,9 +283,9 @@ int __init make_umid(void) | |||
274 | 283 | ||
275 | snprintf(tmp, sizeof(tmp), "%s%s", uml_dir, umid); | 284 | snprintf(tmp, sizeof(tmp), "%s%s", uml_dir, umid); |
276 | err = mkdir(tmp, 0777); | 285 | err = mkdir(tmp, 0777); |
277 | if(err < 0){ | 286 | if (err < 0) { |
278 | err = -errno; | 287 | err = -errno; |
279 | if(err != -EEXIST) | 288 | if (err != -EEXIST) |
280 | goto err; | 289 | goto err; |
281 | 290 | ||
282 | if (umdir_take_if_dead(tmp) < 0) | 291 | if (umdir_take_if_dead(tmp) < 0) |
@@ -284,9 +293,10 @@ int __init make_umid(void) | |||
284 | 293 | ||
285 | err = mkdir(tmp, 0777); | 294 | err = mkdir(tmp, 0777); |
286 | } | 295 | } |
287 | if(err){ | 296 | if (err) { |
288 | err = -errno; | 297 | err = -errno; |
289 | printk("Failed to create '%s' - err = %d\n", umid, -errno); | 298 | printk(UM_KERN_ERR "Failed to create '%s' - err = %d\n", umid, |
299 | errno); | ||
290 | goto err; | 300 | goto err; |
291 | } | 301 | } |
292 | 302 | ||
@@ -301,14 +311,15 @@ int __init make_umid(void) | |||
301 | 311 | ||
302 | static int __init make_umid_init(void) | 312 | static int __init make_umid_init(void) |
303 | { | 313 | { |
304 | if(!make_umid()) | 314 | if (!make_umid()) |
305 | return 0; | 315 | return 0; |
306 | 316 | ||
307 | /* If initializing with the given umid failed, then try again with | 317 | /* |
318 | * If initializing with the given umid failed, then try again with | ||
308 | * a random one. | 319 | * a random one. |
309 | */ | 320 | */ |
310 | printk("Failed to initialize umid \"%s\", trying with a random umid\n", | 321 | printk(UM_KERN_ERR "Failed to initialize umid \"%s\", trying with a " |
311 | umid); | 322 | "random umid\n", umid); |
312 | *umid = '\0'; | 323 | *umid = '\0'; |
313 | make_umid(); | 324 | make_umid(); |
314 | 325 | ||
@@ -322,12 +333,12 @@ int __init umid_file_name(char *name, char *buf, int len) | |||
322 | int n, err; | 333 | int n, err; |
323 | 334 | ||
324 | err = make_umid(); | 335 | err = make_umid(); |
325 | if(err) | 336 | if (err) |
326 | return err; | 337 | return err; |
327 | 338 | ||
328 | n = snprintf(buf, len, "%s%s/%s", uml_dir, umid, name); | 339 | n = snprintf(buf, len, "%s%s/%s", uml_dir, umid, name); |
329 | if(n >= len){ | 340 | if (n >= len) { |
330 | printk("umid_file_name : buffer too short\n"); | 341 | printk(UM_KERN_ERR "umid_file_name : buffer too short\n"); |
331 | return -E2BIG; | 342 | return -E2BIG; |
332 | } | 343 | } |
333 | 344 | ||
@@ -341,21 +352,22 @@ char *get_umid(void) | |||
341 | 352 | ||
342 | static int __init set_uml_dir(char *name, int *add) | 353 | static int __init set_uml_dir(char *name, int *add) |
343 | { | 354 | { |
344 | if(*name == '\0'){ | 355 | if (*name == '\0') { |
345 | printf("uml_dir can't be an empty string\n"); | 356 | printf("uml_dir can't be an empty string\n"); |
346 | return 0; | 357 | return 0; |
347 | } | 358 | } |
348 | 359 | ||
349 | if(name[strlen(name) - 1] == '/'){ | 360 | if (name[strlen(name) - 1] == '/') { |
350 | uml_dir = name; | 361 | uml_dir = name; |
351 | return 0; | 362 | return 0; |
352 | } | 363 | } |
353 | 364 | ||
354 | uml_dir = malloc(strlen(name) + 2); | 365 | uml_dir = malloc(strlen(name) + 2); |
355 | if(uml_dir == NULL){ | 366 | if (uml_dir == NULL) { |
356 | printf("Failed to malloc uml_dir - error = %d\n", errno); | 367 | printf("Failed to malloc uml_dir - error = %d\n", errno); |
357 | 368 | ||
358 | /* Return 0 here because do_initcalls doesn't look at | 369 | /* |
370 | * Return 0 here because do_initcalls doesn't look at | ||
359 | * the return value. | 371 | * the return value. |
360 | */ | 372 | */ |
361 | return 0; | 373 | return 0; |
@@ -376,7 +388,7 @@ static void remove_umid_dir(void) | |||
376 | 388 | ||
377 | sprintf(dir, "%s%s", uml_dir, umid); | 389 | sprintf(dir, "%s%s", uml_dir, umid); |
378 | err = remove_files_and_dir(dir); | 390 | err = remove_files_and_dir(dir); |
379 | if(err) | 391 | if (err) |
380 | printf("remove_umid_dir - remove_files_and_dir failed with " | 392 | printf("remove_umid_dir - remove_files_and_dir failed with " |
381 | "err = %d\n", err); | 393 | "err = %d\n", err); |
382 | } | 394 | } |