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48 lines
862 B
48 lines
862 B
#include "cache.h" |
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int has_symlink_leading_path(const char *name, char *last_symlink) |
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{ |
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char path[PATH_MAX]; |
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const char *sp, *ep; |
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char *dp; |
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sp = name; |
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dp = path; |
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if (last_symlink && *last_symlink) { |
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size_t last_len = strlen(last_symlink); |
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size_t len = strlen(name); |
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if (last_len < len && |
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!strncmp(name, last_symlink, last_len) && |
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name[last_len] == '/') |
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return 1; |
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*last_symlink = '\0'; |
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} |
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while (1) { |
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size_t len; |
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struct stat st; |
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ep = strchr(sp, '/'); |
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if (!ep) |
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break; |
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len = ep - sp; |
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if (PATH_MAX <= dp + len - path + 2) |
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return 0; /* new name is longer than that??? */ |
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memcpy(dp, sp, len); |
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dp[len] = 0; |
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if (lstat(path, &st)) |
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return 0; |
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if (S_ISLNK(st.st_mode)) { |
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if (last_symlink) |
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strcpy(last_symlink, path); |
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return 1; |
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} |
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dp[len++] = '/'; |
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dp = dp + len; |
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sp = ep + 1; |
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} |
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return 0; |
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}
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