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Graph/af36cb9d-e436-4464-ba4b-1df9c1e521e8

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Network Utilities

af36cb9d-e436-4464-ba4b-1df9c1e521e8

Network Utilities

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Updated5/15/2026

PageRank0.0002

Effectiveness0.000

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5 linked nodes

PERTAIN_TORootCause

The allocation omits space for the '/' separator — alloca(strlen(opt.homedir) + 1 + strlen(NETRC_FILE_NAME) + 1). Tension: causing a one-byte stack overwrite. Outcome: a deterministic size miscalculation in the path buffer construction.

PERTAIN_TOProblem

constructs program_argstring by summing strlen(argv[i]) + 3 + 1 — In src/main.c, wget constructs program_argstring. Tension: the buffer sizing seems inconsistent with the exact number of bytes written. Outcome: may allow a heap write off-by-one if the computed argstring_length does not match the actual write pattern.

PERTAIN_TOReport

wget main.c potential off-by-1 / missing NUL-termination in argv string construction

PERTAIN_TOSolution

caller-supplied dst. Tension: Avoid strcpy to caller buffers. Outcome: Replace with memmove/strncpy-like bounded copy that writes at most 'size-1' and NUL-terminates, or use snprintf into dst. Ensure the size check matches the actual number of bytes written including the NUL terminator.

IMPLEMENTATION_OFComponent

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