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Add is_writable() function to check whether a path is writable or not

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This commit is contained in:
Christian Ruppert 2012-01-26 20:44:33 +01:00
parent de5cee2c21
commit 44019f6542
2 changed files with 16 additions and 0 deletions
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7
src/includes/rc-misc.h
View File

@ -36,6 +36,7 @@
#include <stdbool.h> #include <stdbool.h>
#include <stdlib.h> #include <stdlib.h>
#include <string.h> #include <string.h>
#include <unistd.h>
#define RC_LEVEL_BOOT "boot" #define RC_LEVEL_BOOT "boot"
#define RC_LEVEL_DEFAULT "default" #define RC_LEVEL_DEFAULT "default"
@ -166,6 +167,12 @@ int svc_lock(const char *);
int svc_unlock(const char *, int); int svc_unlock(const char *, int);
pid_t exec_service(const char *, const char *); pid_t exec_service(const char *, const char *);
/*
* Check whether path is writable or not,
* this also works properly with read-only filesystems
*/
int is_writable(const char *);
#define service_start(service) exec_service(service, "start"); #define service_start(service) exec_service(service, "start");
#define service_stop(service) exec_service(service, "stop"); #define service_stop(service) exec_service(service, "stop");

9
src/rc/rc-misc.c
View File

@ -331,3 +331,12 @@ parse_mode(mode_t *mode, char *text)
errno = EINVAL; errno = EINVAL;
return -1; return -1;
} }
int
is_writable(const char *path)
{
if (access(path, W_OK) == 0)
return 1;
return 0;
}