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authorOrestis Floros <orestisflo@gmail.com>2020-05-01 12:15:30 +0200
committerOrestis Floros <orestisflo@gmail.com>2020-05-01 12:16:55 +0200
commitd8e8eb2eef04443d3489d79cf5bf02d8ee2373c2 (patch)
tree84620675c39db4a78bd1fb7ce52cba83c8b9f56e /src
parent675c423647864837e1261a01202cd932d548e1cd (diff)
Move general functions scalloc, sstrdup out of i3status.c
Diffstat (limited to 'src')
-rw-r--r--src/general.c56
-rw-r--r--src/print_file_contents.c8
2 files changed, 56 insertions, 8 deletions
diff --git a/src/general.c b/src/general.c
index e3d4f96..c089126 100644
--- a/src/general.c
+++ b/src/general.c
@@ -6,11 +6,19 @@
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
+#include <glob.h>
#include <sys/fcntl.h>
#include <sys/stat.h>
#include "i3status.h"
+#define exit_if_null(pointer, ...) \
+ { \
+ if (pointer == NULL) \
+ die(__VA_ARGS__); \
+ }
+
+
/*
* Reads size bytes into the destination buffer from filename.
*
@@ -34,6 +42,54 @@ bool slurp(const char *filename, char *destination, int size) {
}
/*
+ * This function resolves ~ in pathnames.
+ * It may resolve wildcards in the first part of the path, but if no match
+ * or multiple matches are found, it just returns a copy of path as given.
+ *
+ */
+char *resolve_tilde(const char *path) {
+ static glob_t globbuf;
+ char *head, *tail, *result = NULL;
+
+ tail = strchr(path, '/');
+ head = strndup(path, tail ? (size_t)(tail - path) : strlen(path));
+
+ int res = glob(head, GLOB_TILDE, NULL, &globbuf);
+ free(head);
+ /* no match, or many wildcard matches are bad */
+ if (res == GLOB_NOMATCH || globbuf.gl_pathc != 1)
+ result = sstrdup(path);
+ else if (res != 0) {
+ die("glob() failed");
+ } else {
+ head = globbuf.gl_pathv[0];
+ result = scalloc(strlen(head) + (tail ? strlen(tail) : 0) + 1);
+ strcpy(result, head);
+ if (tail) {
+ strcat(result, tail);
+ }
+ }
+ globfree(&globbuf);
+
+ return result;
+}
+
+char *sstrdup(const char *str) {
+ if (str == NULL) {
+ return NULL;
+ }
+ char *result = strdup(str);
+ exit_if_null(result, "Error: out of memory (strdup())\n");
+ return result;
+}
+
+void *scalloc(size_t size) {
+ void *result = calloc(size, 1);
+ exit_if_null(result, "Error: out of memory (calloc(%zu))\n", size);
+ return result;
+}
+
+/*
* Skip the given character for exactly 'amount' times, returns
* a pointer to the first non-'character' character in 'input'.
*
diff --git a/src/print_file_contents.c b/src/print_file_contents.c
index 65813f5..37701f1 100644
--- a/src/print_file_contents.c
+++ b/src/print_file_contents.c
@@ -14,14 +14,6 @@
#define STRING_SIZE 10
-static void *scalloc(size_t size) {
- void *result = calloc(size, 1);
- if (result == NULL) {
- die("Error: out of memory (calloc(%zu))\n", size);
- }
- return result;
-}
-
void print_file_contents(yajl_gen json_gen, char *buffer, const char *title, const char *path, const char *format, const char *format_bad, const int max_chars) {
const char *walk = format;
char *outwalk = buffer;