login: fix login_is_valid test

[elogind.git] / src / shared / util.c

diff --git a/src/shared/util.c b/src/shared/util.c
index ceee6f2c90f6a7eecb1372d22e03b85a72184970..f6f3b18bfc9b1a65a57ad52303b0a2c18a623a43 100644 (file)
--- a/src/shared/util.c
+++ b/src/shared/util.c
@@ -128,40 +128,6 @@ char* endswith(const char *s, const char *postfix) {
         return (char*) s + sl - pl;
 }
 
-char* startswith(const char *s, const char *prefix) {
-        const char *a, *b;
-
-        assert(s);
-        assert(prefix);
-
-        a = s, b = prefix;
-        for (;;) {
-                if (*b == 0)
-                        return (char*) a;
-                if (*a != *b)
-                        return NULL;
-
-                a++, b++;
-        }
-}
-
-char* startswith_no_case(const char *s, const char *prefix) {
-        const char *a, *b;
-
-        assert(s);
-        assert(prefix);
-
-        a = s, b = prefix;
-        for (;;) {
-                if (*b == 0)
-                        return (char*) a;
-                if (tolower(*a) != tolower(*b))
-                        return NULL;
-
-                a++, b++;
-        }
-}
-
 bool first_word(const char *s, const char *word) {
         size_t sl, wl;
 
@@ -367,7 +333,7 @@ int safe_atolli(const char *s, long long int *ret_lli) {
 
 int safe_atod(const char *s, double *ret_d) {
         char *x = NULL;
-        double d;
+        double d = 0;
 
         assert(s);
         assert(ret_d);
@@ -726,6 +692,19 @@ int is_kernel_thread(pid_t pid) {
         return 0;
 }
 
+int get_process_capeff(pid_t pid, char **capeff) {
+        const char *p;
+
+        assert(capeff);
+        assert(pid >= 0);
+
+        if (pid == 0)
+                p = "/proc/self/status";
+        else
+                p = procfs_file_alloca(pid, "status");
+
+        return get_status_field(p, "\nCapEff:", capeff);
+}
 
 int get_process_exe(pid_t pid, char **name) {
         const char *p;
@@ -1610,6 +1589,7 @@ bool fstype_is_network(const char *fstype) {
                 "cifs\0"
                 "smbfs\0"
                 "ncpfs\0"
+                "ncp\0"
                 "nfs\0"
                 "nfs4\0"
                 "gfs\0"
@@ -1840,8 +1820,10 @@ int open_terminal(const char *name, int mode) {
          * https://bugs.launchpad.net/ubuntu/+source/linux/+bug/554172/comments/245
          */
 
+        assert(!(mode & O_CREAT));
+
         for (;;) {
-                fd = open(name, mode);
+                fd = open(name, mode, 0);
                 if (fd >= 0)
                         break;
 
@@ -2793,8 +2775,8 @@ int rm_rf_children_dangerous(int fd, bool only_dirs, bool honour_sticky, struct
 _pure_ static int is_temporary_fs(struct statfs *s) {
         assert(s);
         return
-                F_TYPE_CMP(s->f_type, TMPFS_MAGIC) ||
-                F_TYPE_CMP(s->f_type, RAMFS_MAGIC);
+                F_TYPE_EQUAL(s->f_type, TMPFS_MAGIC) ||
+                F_TYPE_EQUAL(s->f_type, RAMFS_MAGIC);
 }
 
 int rm_rf_children(int fd, bool only_dirs, bool honour_sticky, struct stat *root_dev) {
@@ -3295,7 +3277,7 @@ char *ellipsize_mem(const char *s, size_t old_length, size_t new_length, unsigne
 
         r = new0(char, new_length+1);
         if (!r)
-                return r;
+                return NULL;
 
         x = (new_length * percent) / 100;
 
@@ -3485,7 +3467,9 @@ DIR *xopendirat(int fd, const char *name, int flags) {
         int nfd;
         DIR *d;
 
-        nfd = openat(fd, name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|flags);
+        assert(!(flags & O_CREAT));
+
+        nfd = openat(fd, name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|flags, 0);
         if (nfd < 0)
                 return NULL;
 
@@ -5306,13 +5290,17 @@ bool string_is_safe(const char *p) {
         return true;
 }
 
+/**
+ * Check if a string contains control characters.
+ * Spaces and tabs are not considered control characters.
+ */
 bool string_has_cc(const char *p) {
         const char *t;
 
         assert(p);
 
         for (t = p; *t; t++)
-                if (*t > 0 && *t < ' ')
+                if (*t > 0 && *t < ' ' && *t != '\t')
                         return true;
 
         return false;
@@ -5385,20 +5373,24 @@ bool is_locale_utf8(void) {
                 goto out;
         }
 
-        /* For LC_CTYPE=="C" return true,
-         * because CTYPE is effectly unset and
-         * everything defaults to UTF-8 nowadays. */
-
+        /* For LC_CTYPE=="C" return true, because CTYPE is effectly
+         * unset and everything can do to UTF-8 nowadays. */
         set = setlocale(LC_CTYPE, NULL);
         if (!set) {
                 cached_answer = true;
                 goto out;
         }
 
-        cached_answer = streq(set, "C");
+        /* Check result, but ignore the result if C was set
+         * explicitly. */
+        cached_answer =
+                streq(set, "C") &&
+                !getenv("LC_ALL") &&
+                !getenv("LC_CTYPE") &&
+                !getenv("LANG");
 
 out:
-        return (bool)cached_answer;
+        return (bool) cached_answer;
 }
 
 const char *draw_special_char(DrawSpecialChar ch) {
@@ -5713,7 +5705,7 @@ int search_and_fopen_nulstr(const char *path, const char *mode, const char *sear
 
 int create_tmp_dir(char template[], char** dir_name) {
         int r = 0;
-        char *d, *dt;
+        char *d = NULL, *dt;
 
         assert(dir_name);
 
@@ -5903,3 +5895,34 @@ void parse_user_at_host(char *arg, char **user, char **host) {
                 *user = arg;
         }
 }
+
+int split_pair(const char *s, const char *sep, char **l, char **r) {
+        char *x, *a, *b;
+
+        assert(s);
+        assert(sep);
+        assert(l);
+        assert(r);
+
+        if (isempty(sep))
+                return -EINVAL;
+
+        x = strstr(s, sep);
+        if (!x)
+                return -EINVAL;
+
+        a = strndup(s, x - s);
+        if (!a)
+                return -ENOMEM;
+
+        b = strdup(x + strlen(sep));
+        if (!b) {
+                free(a);
+                return -ENOMEM;
+        }
+
+        *l = a;
+        *r = b;
+
+        return 0;
+}