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fileio: introduce warn_file_is_world_accessible()

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This commit is contained in:
Yu Watanabe 2019-04-08 03:48:30 +09:00
parent 15f8f026cf
commit 7a309a8c63
2 changed files with 28 additions and 0 deletions
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25
src/basic/fileio.c
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@ -843,3 +843,28 @@ int safe_fgetc(FILE *f, char *ret) {
return 1; return 1;
} }
int warn_file_is_world_accessible(const char *filename, struct stat *st, const char *unit, unsigned line) {
struct stat _st;
if (!filename)
return 0;
if (!st) {
if (stat(filename, &_st) < 0)
return -errno;
st = &_st;
}
if ((st->st_mode & S_IRWXO) == 0)
return 0;
if (unit)
log_syntax(unit, LOG_WARNING, filename, line, 0,
"%s has %04o mode that is too permissive, please adjust the access mode.",
filename, st->st_mode & 07777);
else
log_warning("%s has %04o mode that is too permissive, please adjust the access mode.",
filename, st->st_mode & 07777);
return 0;
}

3
src/basic/fileio.h
View File

@ -5,6 +5,7 @@
#include <stdbool.h> #include <stdbool.h>
#include <stddef.h> #include <stddef.h>
#include <stdio.h> #include <stdio.h>
#include <sys/stat.h>
#include <sys/types.h> #include <sys/types.h>
#include "macro.h" #include "macro.h"
@ -86,3 +87,5 @@ static inline int read_nul_string(FILE *f, size_t limit, char **ret) {
} }
int safe_fgetc(FILE *f, char *ret); int safe_fgetc(FILE *f, char *ret);
int warn_file_is_world_accessible(const char *filename, struct stat *st, const char *unit, unsigned line);