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Escape arguments to platform linker/compiler. (#1358)

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* Escape arguments to platform linker/compiler.
This commit is contained in:
Christian Buttner
2024-08-15 15:01:53 +02:00
committed by GitHub
parent 2a69f93605
commit 85c682f7e6
5 changed files with 109 additions and 49 deletions
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110
src/utils/stringutils.c
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@@ -320,37 +320,99 @@ void scratch_buffer_append_len(const char *string, size_t len)
scratch_buffer.len += (uint32_t)len;
}
char *scratch_buffer_get_quoted(const char *string)
{
scratch_buffer_clear();
scratch_buffer_append_quoted(string);
return scratch_buffer_to_string();
}
void scratch_buffer_append_quoted(const char *string)
#if PLATFORM_WINDOWS
static bool contains_whitespace_or_quotes(const char *string)
{
char c;
while ((c = string++[0]) != '\0')
while ((c = *string++) != '\0')
{
switch (c)
{
case ' ':
case '\t':
case '\n':
case '\r':
case '"':
return true;
}
}
return false;
}
#endif
void scratch_buffer_append_argument(const char *string)
{
if (scratch_buffer.len != 0) scratch_buffer_append_char(' ');
#if PLATFORM_WINDOWS
if (contains_whitespace_or_quotes(string))
{
scratch_buffer_append_double_quoted(string);
}
else
{
scratch_buffer_append(string);
}
#else
scratch_buffer_append_shell_escaped(string);
#endif
}
void scratch_buffer_append_double_quoted(const char *string)
{
scratch_buffer_append_char('"');
size_t len = strlen(string);
for (size_t i = 0; i < len; )
{
char c = string[i++];
switch (c)
{
case '"':
scratch_buffer_append("\\\"");
continue;
case '\\':
scratch_buffer_append("\\\\");
{
int backslash_count = 1;
for (; i < len && string[i] == '\\'; i++, backslash_count++) {}
if (i == len || string[i] == '"')
{
scratch_buffer_append_char_repeat('\\', backslash_count * 2);
}
else
{
scratch_buffer_append_char_repeat('\\', backslash_count);
}
continue;
case '\n':
scratch_buffer_append("\\n");
continue;
case '\'':
scratch_buffer_append("\\'");
continue;
default:
scratch_buffer_append_char(c);
continue;
}
}
scratch_buffer_append_char(c);
}
scratch_buffer_append_char('"');
}
void scratch_buffer_append_shell_escaped(const char *string)
{
char c;
while ((c = string++[0]) != '\0')
{
if ((unsigned)c < 0x80)
{
switch (c)
{
case LOWER_CHAR_CASE:
case UPPER_CHAR_CASE:
case NUMBER_CHAR_CASE:
case '_':
case '/':
case '.':
case ',':
case '-':
break;
default:
scratch_buffer_append_char('\\');
break;
}
}
scratch_buffer_append_char(c);
}
}
void scratch_buffer_append(const char *string)
@@ -407,6 +469,14 @@ void scratch_buffer_append_char(char c)
scratch_buffer.str[scratch_buffer.len++] = c;
}
void scratch_buffer_append_char_repeat(char c, size_t count)
{
for (size_t i = 0; i < count; i++)
{
scratch_buffer_append_char(c);
}
}
char *scratch_buffer_to_string(void)
{
scratch_buffer.str[scratch_buffer.len] = '\0';