From: Kevin McCarthy <kevin@8t8.us>
Date: Mon, 15 Oct 2018 01:36:08 +0000 (-0700)
Subject: Add mutt_buffer_mktemp() transition function
X-Git-Tag: 2019-10-25~485^2~14
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=906dd2429d16d8bb130a16e3f02cbe02c7f3d8a0;p=neomutt

Add mutt_buffer_mktemp() transition function

This is self-contained and easy to translate, so instead just create
an alternate implementation using struct Buffer.
---

diff --git a/muttlib.c b/muttlib.c
index 718765aa4..d4c15bf08 100644
--- a/muttlib.c
+++ b/muttlib.c
@@ -502,6 +502,28 @@ uint64_t mutt_rand64(void)
   return ret;
 }
 
+/**
+ * mutt_buffer_mktemp_full - Create a temporary file
+ * @param buf    Buffer for result
+ * @param prefix Prefix for filename
+ * @param suffix Suffix for filename
+ * @param src    Source file of caller
+ * @param line   Source line number of caller
+ */
+void mutt_buffer_mktemp_full(struct Buffer *buf, const char *prefix,
+                             const char *suffix, const char *src, int line)
+{
+  mutt_buffer_printf(buf, "%s/%s-%s-%d-%d-%ld%ld%s%s", NONULL(Tmpdir), NONULL(prefix),
+                     NONULL(Hostname), (int) getuid(), (int) getpid(), random(),
+                     random(), suffix ? "." : "", NONULL(suffix));
+  mutt_debug(3, "%s:%d: mutt_mktemp returns \"%s\".\n", src, line, mutt_b2s(buf));
+  if (unlink(mutt_b2s(buf)) && errno != ENOENT)
+  {
+    mutt_debug(1, "%s:%d: ERROR: unlink(\"%s\"): %s (errno %d)\n", src, line,
+               mutt_b2s(buf), strerror(errno), errno);
+  }
+}
+
 /**
  * mutt_mktemp_full - Create a temporary filename
  * @param buf    Buffer for result
diff --git a/muttlib.h b/muttlib.h
index df2b1a393..39f13c7d8 100644
--- a/muttlib.h
+++ b/muttlib.h
@@ -42,6 +42,7 @@ extern struct Regex *GecosMask;
 #define MUTT_RANDTAG_LEN 16
 
 void        mutt_adv_mktemp(char *s, size_t l);
+void        mutt_buffer_mktemp_full(struct Buffer *buf, const char *prefix, const char *suffix, const char *src, int line);
 int         mutt_check_overwrite(const char *attname, const char *path, char *fname, size_t flen, int *append, char **directory);
 void        mutt_encode_path(char *dest, size_t dlen, const char *src);
 void        mutt_expando_format(char *buf, size_t buflen, size_t col, int cols, const char *src, format_t *callback, unsigned long data, enum FormatFlag flags);
@@ -69,4 +70,7 @@ void        mutt_sleep(short s);
 #define mutt_mktemp(a, b)               mutt_mktemp_pfx_sfx(a, b, "neomutt", NULL)
 #define mutt_mktemp_pfx_sfx(a, b, c, d) mutt_mktemp_full(a, b, c, d, __FILE__, __LINE__)
 
+#define mutt_buffer_mktemp(a)               mutt_buffer_mktemp_pfx_sfx(a, "neomutt", NULL)
+#define mutt_buffer_mktemp_pfx_sfx(a, b, c) mutt_buffer_mktemp_full(a, b, c, __FILE__, __LINE__)
+
 #endif /* MUTT_MUTTLIB_H */