20 lines
679 B
C
20 lines
679 B
C
#include "module.h"
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const char* packages_dpkg_module_preset(char* result, size_t result_size) {
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static const char needle[] = "\nStatus: install ok installed";
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const size_t nlen = sizeof(needle) - 1;
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int count = 0;
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int match = 0;
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char c;
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FILE* f = fopen("/var/lib/dpkg/status", "rb");
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if (!f) { snprintf(result, result_size, "?"); return result; }
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while (fread(&c, 1, 1, f) == 1) {
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if (c == needle[match]) {
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if (++match == (int)nlen) { count++; match = 0; }
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} else {
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match = (c == needle[0]) ? 1 : 0;
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}
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}
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fclose(f);
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snprintf(result, result_size, "%d (dpkg)", count);
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return result;
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}
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