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couple small fixes

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This commit is contained in:
Zandr Martin 2016-06-11 15:29:04 -05:00
parent 2298143d09
commit 9ecb43ea3b
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GPG key ID: AA2BB8EF77F7BBDC
2 changed files with 14 additions and 8 deletions
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20
common/util.c
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@ -70,7 +70,7 @@ int get_modifier_names(const char **names, uint32_t modifier_masks) {
}
pid_t get_parent_pid(pid_t child) {
pid_t parent;
pid_t parent = -1;
char file_name[100];
char *buffer = NULL;
char *token = NULL;
@ -79,15 +79,19 @@ pid_t get_parent_pid(pid_t child) {
sprintf(file_name, "/proc/%d/stat", child);
if ((stat = fopen(file_name, "r")) && (buffer = read_line(stat))) {
if ((stat = fopen(file_name, "r"))) {
if ((buffer = read_line(stat))) {
token = strtok(buffer, sep); // pid
token = strtok(NULL, sep); // executable name
token = strtok(NULL, sep); // state
token = strtok(NULL, sep); // parent pid
parent = strtol(token, NULL, 10);
}
fclose(stat);
}
token = strtok(buffer, sep); // pid
token = strtok(NULL, sep); // executable name
token = strtok(NULL, sep); // state
token = strtok(NULL, sep); // parent pid
parent = strtol(token, NULL, 10);
if (parent) {
return (parent == child) ? -1 : parent;
}