inih: remove unused code

This avoids -fanalyzer false-positive in GCC 10:
https://bugzilla.redhat.com/show_bug.cgi?id=1878600
as well as the cppcheck warning:
"variableScope:lib/inih/ini.c:99,style,The scope of the variable 'start' can be reduced."

Signed-off-by: Daiki Ueno <ueno@gnu.org>

2 files changed, 4 insertions, 94 deletions

diff --git a/lib/inih/ini.c b/lib/inih/ini.c
index 81df6a037f..0393625b71 100644
--- a/lib/inih/ini.c
+++ b/lib/inih/ini.c
@@ -24,12 +24,6 @@ https://github.com/benhoyt/inih
 #define MAX_SECTION 50
 #define MAX_NAME 50
 
-/* Used by ini_parse_string() to keep track of string parsing state. */
-typedef struct {
-    const char* ptr;
-    size_t num_left;
-} ini_parse_string_ctx;
-
 /* Strip whitespace chars off end of given string, in place. Return s. */
 static char* rstrip(char* s)
 {
@@ -76,8 +70,7 @@ static char* strncpy0(char* dest, const char* src, size_t size)
 }
 
 /* See documentation in header file. */
-int ini_parse_stream(ini_reader reader, void* stream, ini_handler handler,
-                     void* user)
+int ini_parse_file(FILE* file, ini_handler handler, void* user)
 {
     /* Uses a fair bit of stack (use heap instead if you need to) */
 #if INI_USE_STACK
@@ -94,7 +87,6 @@ int ini_parse_stream(ini_reader reader, void* stream, ini_handler handler,
     char section[MAX_SECTION] = "";
     char prev_name[MAX_NAME] = "";
 
-    char* start;
     char* end;
     char* name;
     char* value;
@@ -115,7 +107,8 @@ int ini_parse_stream(ini_reader reader, void* stream, ini_handler handler,
 #endif
 
     /* Scan through stream line by line */
-    while (reader(line, max_line, stream) != NULL) {
+    while (fgets(line, max_line, file) != NULL) {
+        char* start;
 #if INI_ALLOW_REALLOC && !INI_USE_STACK
         offset = strlen(line);
         while (offset == max_line - 1 && line[offset - 1] != '\n') {
@@ -128,7 +121,7 @@ int ini_parse_stream(ini_reader reader, void* stream, ini_handler handler,
                 return -2;
             }
             line = new_line;
-            if (reader(line + offset, max_line - offset, stream) == NULL)
+            if (fgets(line + offset, max_line - offset, file) == NULL)
                 break;
             if (max_line >= INI_MAX_LINE)
                 break;
@@ -210,60 +203,3 @@ int ini_parse_stream(ini_reader reader, void* stream, ini_handler handler,
 
     return error;
 }
-
-/* See documentation in header file. */
-int ini_parse_file(FILE* file, ini_handler handler, void* user)
-{
-    return ini_parse_stream((ini_reader)fgets, file, handler, user);
-}
-
-/* See documentation in header file. */
-int ini_parse(const char* filename, ini_handler handler, void* user)
-{
-    FILE* file;
-    int error;
-
-    file = fopen(filename, "r");
-    if (!file)
-        return -1;
-    error = ini_parse_file(file, handler, user);
-    fclose(file);
-    return error;
-}
-
-/* An ini_reader function to read the next line from a string buffer. This
-   is the fgets() equivalent used by ini_parse_string(). */
-static char* ini_reader_string(char* str, int num, void* stream) {
-    ini_parse_string_ctx* ctx = (ini_parse_string_ctx*)stream;
-    const char* ctx_ptr = ctx->ptr;
-    size_t ctx_num_left = ctx->num_left;
-    char* strp = str;
-    char c;
-
-    if (ctx_num_left == 0 || num < 2)
-        return NULL;
-
-    while (num > 1 && ctx_num_left != 0) {
-        c = *ctx_ptr++;
-        ctx_num_left--;
-        *strp++ = c;
-        if (c == '\n')
-            break;
-        num--;
-    }
-
-    *strp = '\0';
-    ctx->ptr = ctx_ptr;
-    ctx->num_left = ctx_num_left;
-    return str;
-}
-
-/* See documentation in header file. */
-int ini_parse_string(const char* string, ini_handler handler, void* user) {
-    ini_parse_string_ctx ctx;
-
-    ctx.ptr = string;
-    ctx.num_left = strlen(string);
-    return ini_parse_stream((ini_reader)ini_reader_string, &ctx, handler,
-                            user);
-}
diff --git a/lib/inih/ini.h b/lib/inih/ini.h
index 6c3d664d2e..a8fef27f85 100644
--- a/lib/inih/ini.h
+++ b/lib/inih/ini.h
@@ -36,36 +36,10 @@ typedef int (*ini_handler)(void* user, const char* section,
 /* Typedef for prototype of fgets-style reader function. */
 typedef char* (*ini_reader)(char* str, int num, void* stream);
 
-/* Parse given INI-style file. May have [section]s, name=value pairs
-   (whitespace stripped), and comments starting with ';' (semicolon). Section
-   is "" if name=value pair parsed before any section heading. name:value
-   pairs are also supported as a concession to Python's configparser.
-
-   For each name=value pair parsed, call handler function with given user
-   pointer as well as section, name, and value (data only valid for duration
-   of handler call). Handler should return nonzero on success, zero on error.
-
-   Returns 0 on success, line number of first error on parse error (doesn't
-   stop on first error), -1 on file open error, or -2 on memory allocation
-   error (only when INI_USE_STACK is zero).
-*/
-int ini_parse(const char* filename, ini_handler handler, void* user);
-
 /* Same as ini_parse(), but takes a FILE* instead of filename. This doesn't
    close the file when it's finished -- the caller must do that. */
 int ini_parse_file(FILE* file, ini_handler handler, void* user);
 
-/* Same as ini_parse(), but takes an ini_reader function pointer instead of
-   filename. Used for implementing custom or string-based I/O (see also
-   ini_parse_string). */
-int ini_parse_stream(ini_reader reader, void* stream, ini_handler handler,
-                     void* user);
-
-/* Same as ini_parse(), but takes a zero-terminated string with the INI data
-instead of a file. Useful for parsing INI data from a network socket or
-already in memory. */
-int ini_parse_string(const char* string, ini_handler handler, void* user);
-
 /* Nonzero to allow multi-line value parsing, in the style of Python's
    configparser. If allowed, ini_parse() will call the handler with the same
    name for each subsequent line parsed. */