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CM specific changes to allow disabling of root access from system set…
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/* | ||
** Copyright 2012, The CyanogenMod Project | ||
** | ||
** Licensed under the Apache License, Version 2.0 (the "License"); | ||
** you may not use this file except in compliance with the License. | ||
** You may obtain a copy of the License at | ||
** | ||
** http://www.apache.org/licenses/LICENSE-2.0 | ||
** | ||
** Unless required by applicable law or agreed to in writing, software | ||
** distributed under the License is distributed on an "AS IS" BASIS, | ||
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
** See the License for the specific language governing permissions and | ||
** limitations under the License. | ||
*/ | ||
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#include <unistd.h> | ||
#include <limits.h> | ||
#include <fcntl.h> | ||
#include <errno.h> | ||
#include <endian.h> | ||
#include <ctype.h> | ||
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#include <stdio.h> | ||
#include <stdlib.h> | ||
#include <string.h> | ||
#include <cutils/properties.h> | ||
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/* reads a file, making sure it is terminated with \n \0 */ | ||
char* read_file(const char *fn, unsigned *_sz) | ||
{ | ||
char *data; | ||
int sz; | ||
int fd; | ||
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data = 0; | ||
fd = open(fn, O_RDONLY); | ||
if(fd < 0) return 0; | ||
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sz = lseek(fd, 0, SEEK_END); | ||
if(sz < 0) goto oops; | ||
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if(lseek(fd, 0, SEEK_SET) != 0) goto oops; | ||
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data = (char*) malloc(sz + 2); | ||
if(data == 0) goto oops; | ||
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if(read(fd, data, sz) != sz) goto oops; | ||
close(fd); | ||
data[sz] = '\n'; | ||
data[sz+1] = 0; | ||
if(_sz) *_sz = sz; | ||
return data; | ||
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oops: | ||
close(fd); | ||
if(data != 0) free(data); | ||
return 0; | ||
} | ||
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int get_property(const char *data, char *found, const char *searchkey, const char *not_found) | ||
{ | ||
char *key, *value, *eol, *sol, *tmp; | ||
if (data == NULL) goto defval; | ||
int matched = 0; | ||
sol = strdup(data); | ||
while((eol = strchr(sol, '\n'))) { | ||
key = sol; | ||
*eol++ = 0; | ||
sol = eol; | ||
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value = strchr(key, '='); | ||
if(value == 0) continue; | ||
*value++ = 0; | ||
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while(isspace(*key)) key++; | ||
if(*key == '#') continue; | ||
tmp = value - 2; | ||
while((tmp > key) && isspace(*tmp)) *tmp-- = 0; | ||
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while(isspace(*value)) value++; | ||
tmp = eol - 2; | ||
while((tmp > value) && isspace(*tmp)) *tmp-- = 0; | ||
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if (strncmp(searchkey, key, strlen(searchkey)) == 0) { | ||
matched = 1; | ||
break; | ||
} | ||
} | ||
int len; | ||
if (matched) { | ||
len = strlen(value); | ||
if (len >= PROPERTY_VALUE_MAX) | ||
return -1; | ||
memcpy(found, value, len + 1); | ||
} else goto defval; | ||
return len; | ||
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defval: | ||
len = strlen(not_found); | ||
memcpy(found, not_found, len + 1); | ||
return len; | ||
} |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,24 @@ | ||
/* | ||
** Copyright 2012, The CyanogenMod Project | ||
** | ||
** Licensed under the Apache License, Version 2.0 (the "License"); | ||
** you may not use this file except in compliance with the License. | ||
** You may obtain a copy of the License at | ||
** | ||
** http://www.apache.org/licenses/LICENSE-2.0 | ||
** | ||
** Unless required by applicable law or agreed to in writing, software | ||
** distributed under the License is distributed on an "AS IS" BASIS, | ||
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
** See the License for the specific language governing permissions and | ||
** limitations under the License. | ||
*/ | ||
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#ifndef _UTILS_H_ | ||
#define _UTILS_H_ | ||
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/* reads a file, making sure it is terminated with \n \0 */ | ||
char* read_file(const char *fn, unsigned *_sz); | ||
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int get_property(const char *data, char *found, const char *searchkey, const char *not_found); | ||
#endif |