execve (file, argv, envp);
if (errno == ENOEXEC)
- {
- /* Count the arguments. */
- int argc = 0;
- while (argv[argc++])
- ;
- size_t len = (argc + 1) * sizeof (char *);
- char **script_argv;
- void *ptr = NULL;
- script_argv = alloca (len);
-
- if (script_argv != NULL)
- {
- scripts_argv (file, argv, argc, script_argv);
- execve (script_argv[0], script_argv, envp);
-
- free (ptr);
- }
- }
+ {
+ /* Count the arguments. */
+ int argc = 0;
+ while (argv[argc++])
+ ;
+ size_t len = (argc + 1) * sizeof (char *);
+ char **script_argv;
+ void *ptr = NULL;
+ script_argv = alloca (len);
+
+ if (script_argv != NULL)
+ {
+ scripts_argv (file, argv, argc, script_argv);
+ execve (script_argv[0], script_argv, envp);
+
+ free (ptr);
+ }
+ }
}
else
{
size_t alloclen = 0;
char *path = getenv ("PATH");
if (path == NULL)
- {
- pathlen = confstr (_CS_PATH, (char *) NULL, 0);
- alloclen = pathlen + 1;
- }
+ {
+ pathlen = confstr (_CS_PATH, (char *) NULL, 0);
+ alloclen = pathlen + 1;
+ }
else
- pathlen = strlen (path);
+ pathlen = strlen (path);
size_t len = strlen (file) + 1;
alloclen += pathlen + len + 1;
name = alloca (alloclen);
if (path == NULL)
- {
- /* There is no `PATH' in the environment.
- The default search path is the current directory
- followed by the path `confstr' returns for `_CS_PATH'. */
- path = name + pathlen + len + 1;
- path[0] = ':';
- (void) confstr (_CS_PATH, path + 1, pathlen);
- }
+ {
+ /* There is no `PATH' in the environment.
+ The default search path is the current directory
+ followed by the path `confstr' returns for `_CS_PATH'. */
+ path = name + pathlen + len + 1;
+ path[0] = ':';
+ (void) confstr (_CS_PATH, path + 1, pathlen);
+ }
/* Copy the file name at the top. */
name = (char *) memcpy (name + pathlen + 1, file, len);
bool got_eacces = false;
char *p = path;
do
- {
- char *startp;
-
- path = p;
- p = strchr (path, ':');
- if (!p)
- p = path + strlen(path);
-
- if (p == path)
- /* Two adjacent colons, or a colon at the beginning or the end
- of `PATH' means to search the current directory. */
- startp = name + 1;
- else
- startp = (char *) memcpy (name - (p - path), path, p - path);
-
- /* Try to execute this name. If it works, execve will not return. */
- execve (startp, argv, envp);
-
- if (errno == ENOEXEC)
- {
- if (script_argv == NULL)
- {
- /* Count the arguments. */
- int argc = 0;
- while (argv[argc++])
- ;
- size_t arglen = (argc + 1) * sizeof (char *);
- script_argv = alloca (arglen);
- if (script_argv == NULL)
- {
- /* A possible EACCES error is not as important as
- the ENOMEM. */
- got_eacces = false;
- break;
- }
- scripts_argv (startp, argv, argc, script_argv);
- }
-
- execve (script_argv[0], script_argv, envp);
- }
-
- switch (errno)
- {
- case EACCES:
- /* Record the we got a `Permission denied' error. If we end
- up finding no executable we can use, we want to diagnose
- that we did find one but were denied access. */
- got_eacces = true;
- case ENOENT:
- case ESTALE:
- case ENOTDIR:
- /* Those errors indicate the file is missing or not executable
- by us, in which case we want to just try the next path
- directory. */
- case ENODEV:
- case ETIMEDOUT:
- /* Some strange filesystems like AFS return even
- stranger error numbers. They cannot reasonably mean
- anything else so ignore those, too. */
- break;
-
- default:
- /* Some other error means we found an executable file, but
- something went wrong executing it; return the error to our
- caller. */
- return -1;
- }
- }
+ {
+ char *startp;
+
+ path = p;
+ p = strchr (path, ':');
+ if (!p)
+ p = path + strlen(path);
+
+ if (p == path)
+ /* Two adjacent colons, or a colon at the beginning or the end
+ of `PATH' means to search the current directory. */
+ startp = name + 1;
+ else
+ startp = (char *) memcpy (name - (p - path), path, p - path);
+
+ /* Try to execute this name. If it works, execve will not return. */
+ execve (startp, argv, envp);
+
+ if (errno == ENOEXEC)
+ {
+ if (script_argv == NULL)
+ {
+ /* Count the arguments. */
+ int argc = 0;
+ while (argv[argc++])
+ ;
+ size_t arglen = (argc + 1) * sizeof (char *);
+ script_argv = alloca (arglen);
+ if (script_argv == NULL)
+ {
+ /* A possible EACCES error is not as important as
+ the ENOMEM. */
+ got_eacces = false;
+ break;
+ }
+ scripts_argv (startp, argv, argc, script_argv);
+ }
+
+ execve (script_argv[0], script_argv, envp);
+ }
+
+ switch (errno)
+ {
+ case EACCES:
+ /* Record the we got a `Permission denied' error. If we end
+ up finding no executable we can use, we want to diagnose
+ that we did find one but were denied access. */
+ got_eacces = true;
+ case ENOENT:
+ case ESTALE:
+ case ENOTDIR:
+ /* Those errors indicate the file is missing or not executable
+ by us, in which case we want to just try the next path
+ directory. */
+ case ENODEV:
+ case ETIMEDOUT:
+ /* Some strange filesystems like AFS return even
+ stranger error numbers. They cannot reasonably mean
+ anything else so ignore those, too. */
+ break;
+
+ default:
+ /* Some other error means we found an executable file, but
+ something went wrong executing it; return the error to our
+ caller. */
+ return -1;
+ }
+ }
while (*p++ != '\0');
/* We tried every element and none of them worked. */
if (got_eacces)
- /* At least one failure was due to permissions, so report that
- error. */
- errno = EACCES;
+ /* At least one failure was due to permissions, so report that
+ error. */
+ errno = EACCES;
}
/* Return the error from the last attempt (probably ENOENT). */
projects / icinga2 / commitdiff