DAMASK_EICMD/src/C_routines.c

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/* Unix */
#include <stdio.h>
#include <unistd.h>
#include <dirent.h>
#include <string.h>
#include <signal.h>
#include <pwd.h>
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#include <sys/types.h>
#include <sys/stat.h>
#include <zlib.h>
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#ifdef FYAML
#include <libfyaml.h>
#endif
#define PATHLEN 4096
#define STRLEN 256
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int setcwd_c(const char *cwd){
return chdir(cwd);
}
void getcwd_c(char cwd[], int *stat ){
char cwd_tmp[PATHLEN+1];
if(getcwd(cwd_tmp, sizeof(cwd_tmp))){
strcpy(cwd,cwd_tmp); // getcwd guarantees a NULL-terminated string
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*stat = 0;
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}
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else{
*stat = 1;
}
}
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void gethostname_c(char hostname[], int *stat){
char hostname_tmp[STRLEN];
if(gethostname(hostname_tmp, sizeof(hostname_tmp)) == 0){
strncpy(hostname,hostname_tmp,sizeof(hostname_tmp)+1); // gethostname does not guarantee a NULL-terminated string
*stat = 0;
}
else{
*stat = 1;
}
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}
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void getusername_c(char username[], int *stat){
struct passwd *pw = getpwuid(getuid());
if(pw && strlen(pw->pw_name) <= STRLEN){
strncpy(username,pw->pw_name,STRLEN+1);
*stat = 0;
}
else{
*stat = 1;
}
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}
void signalint_c(void (*handler)(int)){
signal(SIGINT, handler);
}
void signalusr1_c(void (*handler)(int)){
signal(SIGUSR1, handler);
}
void signalusr2_c(void (*handler)(int)){
signal(SIGUSR2, handler);
}
void inflate_c(const uLong *s_deflated, const uLong *s_inflated, const Byte deflated[], Byte inflated[]){
/* make writable copy, uncompress will write to it */
uLong s_inflated_,i;
s_inflated_ = *s_inflated;
if(uncompress((Bytef *)inflated, &s_inflated_, (Bytef *)deflated, *s_deflated) == Z_OK)
return;
else{
for(i=0;i<*s_inflated;i++){
inflated[i] = 0;
}
}
}
#ifdef FYAML
void to_flow_c(char **flow, long* length_flow, const char *mixed){
struct fy_document *fyd = NULL;
enum fy_emitter_cfg_flags emit_flags = FYECF_MODE_FLOW_ONELINE | FYECF_STRIP_LABELS | FYECF_STRIP_TAGS |FYECF_STRIP_DOC;
fyd = fy_document_build_from_string(NULL, mixed, -1);
if (!fyd) {
*length_flow = -1;
return;
}
int err = fy_document_resolve(fyd);
if (err) {
*length_flow = -1;
return;
}
*flow = fy_emit_document_to_string(fyd,emit_flags);
*length_flow = (long) strlen(*flow);
fy_document_destroy(fyd);
}
#endif