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https://github.com/Llewellynvdm/conky.git
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Shrink proc.c
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parent
44de7fe6be
commit
1a4c2c61e8
96
src/proc.c
96
src/proc.c
@ -51,24 +51,41 @@ void scan_pid_cmdline_arg(struct text_object *obj, const char *arg, void* free_a
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scan_pid_arg(obj, arg, free_at_crash, "cmdline");
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}
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char* readfile(char* filename, int* total_read) {
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FILE* file;
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char* buf = NULL;
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int bytes_read;
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*total_read = 0;
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file = fopen(filename, "r");
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if(file) {
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do {
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buf = realloc(buf, *total_read + READSIZE + 1);
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bytes_read = fread(buf + *total_read, 1, READSIZE, file);
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*total_read += bytes_read;
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buf[*total_read] = 0;
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}while(bytes_read != 0);
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fclose(file);
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} else {
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NORM_ERR(READERR, filename);
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}
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return buf;
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}
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void print_pid_cmdline(struct text_object *obj, char *p, int p_max_size)
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{
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char buf[p_max_size];
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FILE* infofile;
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char* buf;
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int i, bytes_read;
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infofile = fopen(obj->data.s, "r");
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if(infofile) {
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bytes_read = fread(buf, 1, p_max_size, infofile);
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buf = readfile(obj->data.s, &bytes_read);
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if(buf != NULL) {
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for(i = 0; i < bytes_read-1; i++) {
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if(buf[i] == 0) {
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buf[i] = ' ';
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}
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}
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snprintf(p, p_max_size, "%s", buf);
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fclose(infofile);
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} else {
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NORM_ERR(READERR, obj->data.s);
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free(buf);
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}
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}
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@ -114,35 +131,20 @@ void scan_pid_environ_arg(struct text_object *obj, const char *arg, void* free_a
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void print_pid_environ(struct text_object *obj, char *p, int p_max_size)
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{
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char *buf = NULL;
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char *searchstring;
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FILE* infofile;
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char *searchstring = ((struct environ_data*) obj->data.opaque)->var;
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int bytes_read, total_read = 0;
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searchstring = malloc(strlen(((struct environ_data*) obj->data.opaque)->var) + strlen("=%[\1-\255]") + 1);
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strcpy(searchstring, ((struct environ_data*) obj->data.opaque)->var);
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strcat(searchstring, "=%[\1-\255]");
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infofile = fopen(((struct environ_data*) obj->data.opaque)->file, "r");
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if(infofile) {
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do {
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buf = realloc(buf, total_read + p_max_size + 1);
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bytes_read = fread(buf + total_read, 1, p_max_size, infofile);
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total_read += bytes_read;
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buf[total_read] = 0;
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}while(bytes_read != 0);
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buf = readfile(((struct environ_data*) obj->data.opaque)->file, &total_read);
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if(buf != NULL) {
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for(bytes_read = 0; bytes_read < total_read; bytes_read += strlen(buf + bytes_read) + 1) {
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if(sscanf(buf + bytes_read, searchstring, p) == 1) {
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if(strncmp(buf + bytes_read, searchstring, strlen(searchstring)) == 0 && *(buf + bytes_read + strlen(searchstring)) == '=') {
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snprintf(p, p_max_size, "%s", buf + bytes_read + strlen(searchstring) + 1);
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free(buf);
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free(searchstring);
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fclose(infofile);
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return;
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}
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}
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p[0] = 0;
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free(buf);
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free(searchstring);
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fclose(infofile);
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} else {
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NORM_ERR(READERR, ((struct environ_data*) obj->data.opaque)->file);
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}
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}
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@ -161,32 +163,21 @@ void print_pid_environ_list(struct text_object *obj, char *p, int p_max_size)
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{
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char *buf = NULL;
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char *buf2;
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FILE* infofile;
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int bytes_read, total_read = 0;
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int bytes_read, total_read;
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int i = 0;
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infofile = fopen(obj->data.s, "r");
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if(infofile) {
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do {
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buf = realloc(buf, total_read + p_max_size + 1);
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bytes_read = fread(buf + total_read, 1, p_max_size, infofile);
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total_read += bytes_read;
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buf[total_read] = 0;
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}while(bytes_read != 0);
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while(bytes_read < total_read) {
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buf = readfile(obj->data.s, &total_read);
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if(buf != NULL) {
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for(bytes_read = 0; bytes_read < total_read; buf[i-1] = ';') {
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buf2 = strdup(buf+bytes_read);
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bytes_read += strlen(buf2)+1;
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sscanf(buf2, "%[^=]", buf+i);
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free(buf2);
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i = strlen(buf) + 1;
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buf[i-1] = ';';
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}
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buf[i-1] = 0;
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snprintf(p, p_max_size, "%s", buf);
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free(buf);
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fclose(infofile);
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} else {
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NORM_ERR(READERR, obj->data.s);
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}
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}
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@ -224,19 +215,11 @@ void scan_pid_state_arg(struct text_object *obj, const char *arg, void* free_at_
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}
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void print_pid_state(struct text_object *obj, char *p, int p_max_size) {
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#define STATE_ENTRY "State:\t"
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char *begin, *end, *buf = NULL;
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FILE* infofile;
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int bytes_read, total_read = 0;
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int bytes_read;
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infofile = fopen(obj->data.s, "r");
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if(infofile) {
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do {
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buf = realloc(buf, total_read + p_max_size + 1);
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bytes_read = fread(buf + total_read, 1, p_max_size, infofile);
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total_read += bytes_read;
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buf[total_read] = 0;
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}while(bytes_read != 0);
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buf = readfile(obj->data.s, &bytes_read);
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if(buf != NULL) {
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begin = strstr(buf, STATE_ENTRY);
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if(begin != NULL) {
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begin += strlen(STATE_ENTRY) + 3; // +3 will strip the char representing the short state and the space and '(' that follow
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@ -244,14 +227,11 @@ void print_pid_state(struct text_object *obj, char *p, int p_max_size) {
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if(end != NULL) {
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*(end-1) = 0;
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}
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snprintf(p, p_max_size, "%s",begin);
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snprintf(p, p_max_size, "%s", begin);
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} else {
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NORM_ERR(STATENOTFOUND, obj->data.s);
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}
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free(buf);
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fclose(infofile);
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} else {
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NORM_ERR(READERR, obj->data.s);
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}
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}
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@ -31,6 +31,8 @@
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#define PROCDIR "/proc"
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#define READERR "Can't read '%s'"
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#define STATENOTFOUND "Can't find the process state in '%s'"
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#define READSIZE 128
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#define STATE_ENTRY "State:\t"
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struct environ_data {
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char *file;
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