forked from WHC/Hermit
WHCandCursor
1f1fcba7ad
Vendored sashidown, OpenAI-compatible env (OPENAI_*), and bootstrap scripts. Co-authored-by: Cursor <cursoragent@cursor.com>
62 lines
1.7 KiB
C
62 lines
1.7 KiB
C
#define _DEFAULT_SOURCE
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "cst_agent.h"
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#include "os_compat.h"
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int cst_sandbox_resolve(const char *workspace_root, const char *rel_or_abs,
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char *out, size_t out_sz) {
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if (!workspace_root || !rel_or_abs || !out || out_sz < 2)
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return -1;
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char root_real[OS_PATH_MAX];
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if (os_realpath(workspace_root, root_real, sizeof(root_real)) != 0)
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return -1;
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os_path_norm_slashes(root_real);
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size_t root_len = strlen(root_real);
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char candidate[OS_PATH_MAX];
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if (os_path_is_abs(rel_or_abs)) {
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snprintf(candidate, sizeof(candidate), "%s", rel_or_abs);
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} else if (os_path_join(candidate, sizeof(candidate), root_real, rel_or_abs) !=
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0) {
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return -1;
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}
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os_path_norm_slashes(candidate);
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char resolved[OS_PATH_MAX];
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if (os_realpath(candidate, resolved, sizeof(resolved)) == 0) {
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os_path_norm_slashes(resolved);
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if (!os_path_under(root_real, resolved))
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return -1;
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if (strlen(resolved) + 1 > out_sz)
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return -1;
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memcpy(out, resolved, strlen(resolved) + 1);
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return 0;
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}
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/* Parent exists, leaf may be new file. */
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char tmp[OS_PATH_MAX];
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snprintf(tmp, sizeof(tmp), "%s", candidate);
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char *slash = strrchr(tmp, '/');
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if (!slash)
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return -1;
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*slash = 0;
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const char *base = slash + 1;
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char parent_real[OS_PATH_MAX];
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if (os_realpath(tmp, parent_real, sizeof(parent_real)) != 0)
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return -1;
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os_path_norm_slashes(parent_real);
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if (!os_path_under(root_real, parent_real) &&
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strcmp(parent_real, root_real) != 0)
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return -1;
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(void)root_len;
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int n = snprintf(out, out_sz, "%s/%s", parent_real, base);
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if (n < 0 || (size_t)n >= out_sz)
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return -1;
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return 0;
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}
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