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Get API level from build.prop

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topjohnwu
2019-01-20 15:20:34 -05:00
parent a4f8bd4ee0
commit fdf167db11
4 changed files with 41 additions and 26 deletions
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40
native/jni/resetprop/resetprop.cpp
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@ -206,47 +206,53 @@ int deleteprop(const char *name, bool persist) {
return __system_property_del(name) && !(persist && strncmp(name, "persist.", 8) == 0);
}
int load_prop_file(const char *filename, bool trigger) {
if (init_resetprop()) return -1;
LOGD("resetprop: Load prop file [%s]\n", filename);
int parse_prop_file(const char *filename, const function<bool (const char *, const char *)> &cb) {
LOGD("resetprop: Parse prop file [%s]\n", filename);
FILE *fp = xfopen(filename, "re");
if (fp == nullptr) {
LOGE("Cannot open [%s]\n", filename);
return 1;
}
char *line = nullptr, *pch;
char *line = nullptr, *eql;
size_t len;
ssize_t read;
int comment = 0, i;
int i;
while ((read = getline(&line, &len, fp)) != -1) {
// Remove the trailing newline
if (line[read - 1] == '\n') {
line[read - 1] = '\0';
--read;
line[--read] = '\0';
}
comment = 0;
bool comment = false;
for (i = 0; i < read; ++i) {
// Ignore starting spaces
if (line[i] == ' ') continue;
else {
// A line starting with # is ignored
if (line[i] == '#') comment = 1;
break;
}
// A line starting with # is ignored
if (line[i] == '#') comment = true;
break;
}
if (comment) continue;
pch = strchr(line, '=');
eql = strchr(line, '=');
// Ignore invalid formats
if ( ((pch == nullptr) || (i >= (pch - line))) || (pch >= line + read - 1) ) continue;
if ( ((eql == nullptr) || (i >= (eql - line))) || (eql >= line + read - 1) )
continue;
// Separate the string
*pch = '\0';
setprop(line + i, pch + 1, trigger);
*eql = '\0';
if (!cb(line + i, eql + 1))
break;
}
free(line);
fclose(fp);
return 0;
}
int load_prop_file(const char *filename, bool trigger) {
if (init_resetprop()) return -1;
return parse_prop_file(filename, [=](auto key, auto val) -> bool {
setprop(key, val, trigger);
return true;
});
}
int resetprop_main(int argc, char *argv[]) {
log_cb.d = [](auto fmt, auto ap) -> int { return verbose ? vfprintf(stderr, fmt, ap) : 0; };